improvements in Type writers
Year: 1894

page_text: Date of Application, 27th Dec., 1894-Accepted, 23rd Feb., 1895
improvements in Type writers
A communication from abroad by WYCKOFF, SEAMANS & BENEDICT, of 327,
Broadway, New York City, N.Y., United States of America, a corporation
organized under the laws of the State of Now York.
.
1, JOHN CORRY FELL, of the Firm of Fell & Wilding, of 1 Queen Victoria
Street, in the City of London, Chartered Patent Agent, do hereby declare the
nature of this invention and m what manner the saine is to be performed to be
particularly described and ascertamed in and by the following statement.—
The present improvements relate more particularly to the machine made the
subject of my forine British Patent No. 156, dated February 6, 1892, although
some of the improvements hereinafter described may be employed equally well in
connection with machines of different general construction.
The present improvements concern the carriage feeding or escapement mechanism,
the carnage stopping-mechanism, the inking-iibbon feeding-mechanism, the paper
feeding-mechanism and various other devices having relation to the carriage,
platen-carnici, etc
In the accompanying drawings,
Figure 1 is a top plan vien of the machine omitting the paper table and the
key-board or hey lever mechanism
Figure 2 is a sectional elevation taken at the left hand side of the machine and
on the line 2, 2, of Figure 21, with carriages added.
Figure 3 is a partial side elevation taken at the right hand side of the machine
Figure 4 is a partial vertical section through the paper carriage, etc. and showing
the platen carrier in its turned up position for inspection of the work.
Figure 5 is a vertical section, taken on the line y, y, of Figure 1 and with the
ratcher or escapement wheel lifted to permit the releasement of the carriage from
the dogs
Figure 6 is a detail vertical section of Figure 5, but with the working parts in a
different position, the platen cater being represented as shifted for upper case or
capitals printing
Figure 7 is a partial front elevation and section of the feed rack and pimon, etc.
and the spring-pressed holding hook
Figure 8 15 a houzontal section taken at the line c, r of Figure 2 to show more
particularly portions of the mechanism for moving the ribbon CROSSWISE.
Figure 0 is a detail perspective view of the cam rotating latch-lever, which is
shown also at Figures 2, 8 and 21
Figuro 10 is a rear elevation, partly in section, of the carriage escapement or
feeding mechanism, the rigid or holding dog being ommitted and the view illustrating
the action of the escapement wheel on the feeding dog during the return movement
of the cantage.
Figure 11s perspective view of the feeding on loose dog and the auti-rattling
device attached thereto, which is shown also at Figure 10.
Figure 12 is a view somewhat similar to Figure 11 but showing the escapement
or ntchet wheel in two positions and the teeding dog also in two positions.
Figure 13 is an enlarged section of the feeding dog, and part of the escapement
wheel, the view being taken at the line to, w of Figure 5.

page_text: Figure 14 is a plan, skeleton or outline view of the feed rack mechanism, the
carriage releasing mechanism and the feed rack tripping or disengaging mechanism.
Figure 15 is a front elevation of the right hand end portions of the mechanisms
shown at Figure 14, but with the feed rack depressed to raise the escapement
wheel from engagement with the dogs (as seen at Figure 5), the parts being in the
positions which they assume when the Ìme space level 18 actuated and before the
feed rack 18 tupped at the end of the return movement of the paper carriage
Figure 16 is a sundar view but, representing the feed inck as having been
tripped or released while the pull on the line space lever is still maintained.
Figure 17 is a front elevation, partly in section, of the combined carriage stop
and feed rack trippel.
Figure 18 is an enlarged vertical section taken at the line v, v of Figme 14 of
the margin stop contrivance.
Figure 19 18 an enlarged vertical section of the feed rack spring pin
Figme 20 is a top plan view of the escapement dogs and then support.
Figure 21 is a top plan view to show more particularly the ribbon moving
mechanism, the carriage and platen carrier, etc being reinoved.
Figure 22 18 an enlarged vertical section taken at the line u, u of Figure 21
Figure 23 is a perspective view of the ribbon guide plate and the mechanism for
moving the same and the ribbon crosswise, the framework being omitted.
Figure 24 18 a detail perspective view showing the mode of attaching the left
Inud end of the 1tbbon guide plate to the ribbon spool cartier guide bat.
Figme 25 is an enlarged vertical section taken at the line 2, 2 of Figure 21 ani
showing the mode of holding the front end of the ribbon cartier guide bat and
showing also the left hand end of the ribbon guide plate attached to said bar.
Figme 26 is a plan on development of the ribbon moving cam
Figme 27 is a side view of the ribbon moving cam, with the long ribbon driving
shaft in section, and showing also the head for holding the cam against endwise
movement, the screw stem of the head being in section.
Figure 28 is a vertical section showing one of the paper pressing bands, its
supports, the paper finger or guard, the small paper feed roll, and the adjustable
bincket cari ying all of said devices on the front ban of the platen carrici
Figure 29 is a front elevation of the same
Figure 30 is a perspective view of one of the thin paper pressing bandɛ oi devices,
enlaiged
Figure 31 is a front elevation of part of the platen caret, the shift rail, the
yoke bracket, tollci, scale, pointer, etc ; and
Figue 32 is a vertical section taken at the lines, & of Figure 31.
In order to simplify the drawings as much as possible the key board and all other
parts of the machine located beneath the dog holder on the locker have been
outted, as have also the type bars or levers.
lu the various views the same parts will be found designated by the same
numerals of reference.
The general upright framework of the machine is designated by the numeral 1.
the top plate by 2, the carriage by 3, and the platen cairier by 4
The parts 3
and 4 constitute as a whole the paper carnage, but for convenience of description
the part 3 which has a traveling movement only is designated as a carriage, while
the part 4, designated as a platen-cariei, has a slufting movement independent
of the caninge for upper case printing, and has also a lifting capacity for mspection
and confection of the work
The carnage 3 13 a comparatively narrow bar-like structure having near each
cud grooved rollers 5, which travel upon the guide rail 6 supported in lugs at each
side of the top-pinte. About midway of the cairtage is cast an arm 7 which extends
rearwardly and 18 forked at its extremity to embrace a flanged colla 8, which
slides upon an auxiliary guide rod 9, secured at its ends upon additional lugs sing
from the top plate The carage 3 is prevented from lifting from the guide rail 6
by means of two books on fingers 10 attached to the rear vertical flange of the

page_text: carriage by screws 11 and bent to extend down and under and in contact with
said rail.
Attached to the night hand end of the carriage is one end of a driving band on
belt 12, the other end of which is connected to a sping during dum or wheel 13
of the usual consti uction and arrangement, and by which the power is furnished to
move the carriage and the platen carrier towards the lett.
In a horizontal bearing or perforation formed in the arm 7 is held, by a set
screw 14, a 1od 15, which is provided at its light hand end with a pivoted combined
bell-tripper and carriage stop 16. This 10d 15 is adjustable in its bearings, so as
to give the alaim and stop the caringe thereafter at different points within the
ange of travel of the carriage. The depending tipper 16 acts first upon the
upper end of a pivoted bell-hammer aun 17, and then atter the alaım 18 sounded
strikes against a fixed part of the machine to arrest the forward movement of the
cariage.
At the front side of the carriage 3 is a rock shaft 18, pivoted at 19 at its ends in
a forward extension of the carriage. At each end of this lock shaft is a rocke
a 20, which extends upwardly and forwardly to connect with the platen cantier
at its real side Ench end of the platen carrier is forked at the locality of the
Locker aim so as to embrace the upper end of the latter and pivot or hinge thereto,
the pivot pin being extended at each end as at 21 to play between two fixed
stops 22 and 23, made in the form of screws When the pins are against the
stops 22 the platen carrier is in its lower case position, and when against the stops 23
it is in its upper case position, the rocker aims being adapted to vibrate about the
centers 19 in these movements of the platen carner, under the pushing and pulling
movements of the usual shift rod 24, upon which the grooved front toll 25 of the
platen rarrier travels.
The platen carrier consists essentially of a rectangular frame composed of a back
10d 26, which is coincident with the pivot 21, a front bai 27, a left hand side bar 28
and a right hand side bar 29.
In suitable bearings, in the ond bats, is mounted the platen axle 30, which at
each end is provided with a hand wheel 31. The platen 32 18 mounted upon saul
axle and is provided at its right hand end with a intchet wheel 33, adapted to be
engaged by the free end of a driving pawl 34, pivoted at 35 on the upright and of a
line space lever 36, which is pivoted at 37 in forward extensions of the side bar 29,
aud is provided with a downwardly extending handle portion 38. The diving pawl
is provided with a tail piece or extension 39, which is acted upon by either of the
thi ce faces of a line space regulator 40, pivoted at 41 m an upward extension in the
side ban 29, so as to slightly vibrate said driving pawl and throw its point out of
engagement with the ratchet wheel at the end of the return movement of the line
space level, which retuin movement 18 assisted by a spring 42. The platen is held
fimly against 1otation during the printing operations by means of a small roller 43,
mounted at the end of a spring 44 attached at its rear end to the underside of the
fork of the side bar 29. The driving pawl being normally out of engagement with
the ratchet wheel, the platon may be turned freely in either direction by means of
the hand wheela 31.
The line space lever is provided with an mwardly extendung am 45, having at
ts free end a tooth 46 to engage with the teeth of the ratchet wheel during the
line spacing operation to prevent any overthrow or any undue movement of the
platen when the line space level is violently actuated, and said aim 45 1-
provided with a downwardly extending finger 47, which at certain times act
upon the carriage feeding o escapement mechamsun, which should now be
described.
The general plan of the escapement or feeding mechanism shown in our aforesaid
Patent is preserved herein, but several important changes in construction and
arrangement have been made to render the mechanism more positive and efficient
in action. Generally speaking, the carriage is provided with a foed rack, which
neshes with a pinion on the net end of a cross shaft beating at its outer end an

page_text: escapement wheel, with which co-operates the escapement dog. These parts as
improved, in construction and arrangement together with other parts having relation
thereto will now be described in detail
48 designates the vertically at ranged feed rack. which neat each end is attached
by screws 49, to downwardly projecting curved aims 50, connected by a cross
bar 51 and pivoted or hinged at their rear upper ends upon a round rod 52, which
is held fixedly by set screws 53 in lugs or ears 54 extending down from the
carriage 3 on its rear side.
On the front side of the feed rack 48 and attached thereto by the screws 49 18 11
bar 55 having a horizontal flange or ledge 56 and a vertical rib 57, which rests
upon a roll 58, while the feed rack meshes with a pinion 59, the said roll and pinion
being arranged at the inner end of a shaft 60, which bears at its outer or rearmost
end a ratchet or escapement wheel 61, firmly secured thereto by set screws passing
through a collar on the escapement wheel and bearing at then points upon said
shaft 60. This shaft has a long beating in a support or frame 62, which has a
horizontal pivot at 63, in order that said support or famo may be vibrated in
vertical plane for the purpose of lifting the escapement wheel out of engagement
with the escapement dog to be presently described.
ears 64
The pivot 63 passes through the support 62 and through forks ou
projecting inwardly from a bracket 65 secured by screws 66 to the top plate of the
machine (see Figs. 2 and 5). Upon the top of the bracket 65 is attached by screws,
a spring 67, the free end of which bears upon the top of the shaft support 62 and
serves to return it to its normal position when released.
The escapoment wheel and pinion shaft 60 with its hearing on support is tilted or
vibrated to separate the escapement wheel and the dog by either of two rock shafts
or levers attached to the platen carrier, the one at the left hand side thereof being
known as the "release key" and the one at the right hand side operating only in
conjunction with the line space level.
The feed rack at its left hand end is extended as shown at Figure 14 beneath a
finger 68 at the end of a rock shaft 69 having bearings in aims 70 depending from
the left hand side bar 28 and provided at its fiont end with a finger piece 71
When this finger piece is vibrated towards the right and pushed down the finger 68
is depressed, and bearing as it does upon the feed tack the said feed hack is caused
to swing down about its axis of motion 52, and in its swinging movement, through
its engagement with the pinion, to tilt or vibrate the shaft 60 and causo the
escapement wheel to rise above the plane of the escapement dog, or to the position
shown at ligne 5. When the release key 69 is thus actuated and the escapement
wheel lifted, the callinge and platen carier may be moved quickly either
direction, by the hand towards the right, or by the spring diving power towards
the left.
On the right hand side of the platen cuer is mounted, in bearings in
bracket 72 depending from the side bai 29, another rock shalt 73, the inner
finger 74 of which overlies a pin 75 in a bearing 76 at the night hand end of the
feed rack, while the outer finger 77 of said lock shaft climes upwardly and
terminates in the path of movement of the downwardly extended finger 47 of the
line space lever, so that when said lever is vibrated to effect the line spacing of the
platen simultaneously with the return movement of the carriage for the beginning
of a new line, the said rock shaft 73 18 tuined, and through the connections
described the escapement wheel is lifted or disengaged from the escapement dog.
The rock shaft 73 is preferably provided with a separate returning spring 78.
For a purpose to be explained the pin 75 is movable end wise in its bearing and
is provided with a spring 79 having a tendency to force said pin outwardly (see
Fig 19) but before describing the purpose and action of the said spring pin me
connection with the finger 74, it will be necessary to descube the feed hack tripping
means. At Figure 14, moro especially, will be observed an aim 80, which projects
rearwardly from the cross bar 31 of the pivoted feed tack support, which atin at its
free end is beut or formed to provide a flat vertically aanged contact piece 81

page_text: | adapted to strike against a projecting pin on heal 82 supported in the marginal
carriage stop contrivance, designated in its entirety by the numeral 83. The sand
head 82 is cylindrical in form and is provided with an independent screw 84, by which
the said head may be adjusted in its tubular bearing 85 to have the requisite degree
of projection in order that the contact piece 81 may strike its face at the proper
moment in the return movement of the carriage. As will be seen at Figure 17, the
screw is provided with a set nut 86, and the head with a set screw 87, for the purpose.
of maintaining said head firmly its adjusted position The remaining portions of
the margin stop contrivance may be neglected for the present.
Referring more particularly to Figure 14 it will be observed that there is a space
between the right hand curved arm 50 and the right hand lng 54. This space is
provided to enable the carriage (of which the lug 54 forms a part) and the platen
carrier (connected to the carriage) to move slightly farther towards the right after
the contact piece 81 has stuck the head 82, for the purpose of releasing, tupping or
disengaging the feed rack device from the carriage and platen cartier in order that the
escapement wheel may drop into engagement with the escapement dog in advance
of the completion of the camiage return movement. The spring 88, coiled about
the right hand ond of the rod 52 and extended over and attached to the feed
ack, as shown at Figure 14, has a tendency to keep the rack normally to the
Limit of its right hand movement or with the left hand atm 50 against the left hand
lug 54. The sad spring also tends to keep the feed rack down in engagement with
its pinion. The tripping or releasing action of the feed rack will now be more
minutely described and in connection more particularly with Figures 5, 14, 15
and 16.
At Figures 14 and 15 the parts are shown in the same positions and these views
illustrate the ictiming movement of the carriage and its connected parts after the
line space action and while the line spacing handle is held up by the operator, at
which time it will be understood the finger 74 18 beating down upon the pin 75 and
the escapement wheel is in a raised position. Now, with the parts in this condition
when the contact piece 81 strikes the head 82 the feed tack and its rigidly
connected parts are arrested, while the carriage and the platen carrier continue à
short distance farther towards the right and until the arm 7 comes against the lett
hand side of the contact piece 81, thus arresting the carriage. During this
additional movement of the caringe the finger 74 slides off of the pin 75 and thus
releases the feed rack and its connected parts and permits the escapement wheel to
descend into engagement with the escapement dog, under the action of the
spng 67, the feed lack smultaneously using (Fig. 5). At Figme 16 the
finger 74 is shown as having slipped off of the pin 75. When this disengagement
occurs the carriage and the platen carrier should move slightly towards the left
under the action of the spring drum or diving power to renew their proper
elationship to the feed inck; but if after the automatic release of the feed inek
and before the carriage and platen carer make this slight return movement
towards the left the line space lever be not released, the lack would be forced
towards the right and cause a jamming or pressme between the finger 74 and the
end of the pin 75 if said pm were made gid mstead of yielding, as shown. When
the condition of aflans just described occurs the finger 74 will force the pin
nwardly against the action of its spring 79 a distance equal to the rebound or
netuin movement of the platen carrier, thereby avoiding any collision or jamming
of parts which would injuriously affect the machine or throw it out of proper
working position. As soon as the line space lever is released alter this rebound
of the platen carer the finger 74 is thrown upwardly by the spring 78, and the
pin 75 is pushed outwardly agam by the spring 70.
It will be understood of course that the lack may be depressed by the means
described in connection with the line spacing level and released therefiom and
from the carriage by means of the tripping aim 80 and its contact pieces, without
the employment of the spring or yielding pin 75, but the said pin performs a

page_text: LINIS
highly userlinction in the mechanism and it is therefore preferred for
1eason.
The many object of this automatic tupping or releasement of the rack 18 to
enable the escapement wheel and dog to automatically re-engage or come into
proper working position before the completion of the rebound of the carnage, in
order that the feeding mechanism shall be certam to be in readiness for action
before and respective of any releasement of the line space lever, and hence before
the re-cominencement of the work at the key board.
The rack and pinion are maintained in engagement at all times by the gravity
of the rack and its framo, assisted some by the downward tension of the spring 88
This engagement between the 1ack and pinion is sured however by means of a
hook 89, which clasps the upper side of the horizontal flange or ledge 56 of the
bat 35 attached to the face of the feed rack. The said hook is bent laterally to
provide a horizontal pivot 90, which is fitted in a beating 91 at the forward end of
a bracket 92, fastened by screws 93 upon the innermost end of the tilting flame of
support 62. This pivoted hook 89 is provided with a sping 94, one end of which
18 attached to a screw 95, and the other fiee end of which bear in a groove oi
cut-away on the underside of the pivot 90 and operates to hold the hook normally
in an upright position and upon the flange or ledge. By the use of this device an
accidental separation of the rack and pinion is prevented when the camages is
returned and caused to strike its margin stop violently. At the same time, when it
may be desired to remove the caringe from the machine the said hook may be
turned down about its pivot to a horizontal position, whereby the rack and pinion
may be easily sepainted
The primary object of having the escapement wheel and pinion shaft arranged to
tilt, swing on vibiate is to enable a certam defect m the puoi construction to be
remedied. lu sand pitor construction the said shaft had merely a rotatory
motion, and in order to release the camage from its pinion the rack was lifted
independently of the pinion, or in other words, the point of separation was at the
ack and pinion. In practice this was found to be objectionable, in that when the
ach was lifted from the pinion and the carriage was returned to the right, owing
to the shock and consequent displacement of the parts, the rack would not always
fall on to the proper tooth of the pinion, and hence the caulage would not be
arrested and e-commence the line at the desired point or locality. For instance,
the carnage stop might have been set to arrest the can
age at 60 on the scale,
but owing to the aforesaid shock and displacement the pinion would engage at n
point on the rack, say corresponding to "1' on the scale, and hence the carriage
would be anested and commeuce its travel from the last mentioned point, instead
of at "0," as desned. With the new construction however, involving the lifting
of the escapement wheel this objection is entirely cured
The marginal stop contrivance 83 consists essentially of a block 96 perforated
tiansversely to slide upon the guide rail 9 and formed on its underside with n
semi-circula transverse groove 97, to bear and slide upon a short rod 98 arranged
parallel with and beneath the guide rod 9. By this constinction the block while
capable of being lid freely longitudinally of the two rods is prevented from
tuining thereupon. In the earmost part of the block is formed vertically an
opening 99 for the passage therethrough of the stem 100 of a catch 101, which
is arranged at light angles to the stem and projects inwardly to engage with
any one of a series of notches 102 formed on the underside of the iod 98.
Surrounding the stem of the catch is a coiled spring 103, which at its lower eu l
ests upon a shoulder in the opening 99 and at its upper end beats against a
head or finger piece 104 on said stem. By this construction the block may be
adjusted and held at any desired pomt within the length of the rod 98, which
for convenience of said adjustments is graduated and marked on its frout side
as indicated at Figure 17 to correspond with the ught hand portion of the
machine scale. The notches in the said tod me made a distance apart equal to

page_text: the notches in the feed rack, or in other words, correspond to the letter spacing
movements of the carriage To adjust the contrivance it is simply necessary to
press down upon the finger piece or head 104 to release the catch 101 from one
notch, and while it is held released to slide the block along the rods to the
desired point, when upon removal of the finger the catch will automatically engage
with the notch to which it may be opposite
Pivoted at 105 in a part of the general framework is dog holder or locker 106,
which is in the form of an arm, and extending upwardly beats at its fee and
the rigid or holding dog 107 and the yielding or feeding dog 108
At the axis
of the dog holder is aanged a returning spring 109 of the usual construction
and arrangement, and from sand axis projects wardly an arm 110, to a cross
bar 111 of which is attached at each end the wires or rods by which the universal
bar is suspended beneath the key levers, common in priot machines and not
necessary to be illustrated or further explained herein
The dog holder or rocker 106 is provided with an adjustable stop 112 on a screw
stem, by which the forward depressions of said holder or rockat are limited.
The upper end of the dog holde is formed with a real wardly extending ear 113,
to which is attached by a sciew 114 the rigid dog 107 This dog consists essentially
of a small Hut plate, the upper working end of which has a beveled or inchued
portion of tooth 115 and a stiaight portion on tooth 116, the latter being parallel
with the sides of the plate, and the formor bent at an angle thereto and towards
the right (viewed from the front of the machine) This beut of angular portion 115
in connection with the escapement wheel, effects a quick releasement and feed of
the carriage, as will be hereinafter more fully explamed
The loose or flexible dog 108 is pivoted at 117 upon the said locker or holder and
18 formed with two flat shoulders or faces 118 and 119, one above and one below
the said pivot 117 Beating upon these fares 118 and 119 is a spring 120, curved
01 hook shaped at its upper end, as nt. 121, and is secured to the rocker at its lower
end by a screw 122 (see Figs. 10, 11, 12 and 13). When the escapement wheel is
raised the hook shaped end of the spring presses against both of the faces 118
and 119 and causes the beveled or working ond of the dog to stand in the position
shown by the full lines at Figure 13, which position is a central or intermediate
one, the dog being adapted to be moved to either of the two dotted line positions
also shown at said Figue 13 When the dog 15 moved to the dotted line
position a the pressure of the spring upon the face 118 is removed, and hence when
the dog is released from the position the upper end of the sping acting upon the
face 119 returns the dog to the full line or intermediate position, at which the
spring bears upon both of the said faces, serving thereby as a stop to the movement
of the dog and to centralize the rame. When the dog is moved to the dotted line
position & the upper face 119 13 swung away from the upper end of the spring so
that when the dog is thereafter released the spring acting upon the face 118 will
serve to return the dog to its central normal position again. The dog is moved
to and from its two dotted line positions by the means and in the manner to be
presently explained.
Upon the left hand side of the dog (viewed from the front of the machine) 18
attached by a sciew 123, an arm 124, which extends fist upwardly and then
sidewise towards the right, the active portion 125 of said arm being arranged
to contact with the front face or side of the body of the escapement wheel 61, as
indicated at Figures 10 and 12, when said ratchet wheel is down or in its normal
position.
The operation of the escapement devices will now be more particularly
described.―
Normally, or when the machine is in disuse, the loose spring-pressed feeding
dog 108 stands in engagement with the escapement wheel which under the driving
power and through the intermediate rack and pinion, has a tendency to rotate in
the direction of the arrow at Figure 12, but such rotation is prevented at this tune

page_text: by reason of the right hand side of the dog bearing against a stop 126 forming a
part of the rocker, as shown by the dotted lines at Figure 12
When the finger key, connected with the type bai or the spacing mechanism, is
actuated, the dog 108 is rocked for ward out of the plane of the escapement n heel
and the rigid dog 107 is by the same operation moved into the plane of said wheel
and into the space between two of its teeth to check the rotation of sand wheel and
prevent any movement at this time of the
paper caringe As soon as the feeding
dog 108 passes out of the escapement wheel its sping 120 operates to vibrate said
dog towards the left or into the intermediate position shown by the full lines at
Figures 12 and 13. When said finger key is released the dog 108 passes into the
next space or notch of the escapement wheel, and as the gul dog moves back out
of engagement with said wheel the latter being unrestrained may mako a partial
notation in the direction of the airon at Figure 12, during which the dog 108 18
vibrated towards the night and against its stop 126, while simultaneously the
carriage is moved or fed through the rack and pinion only one letter space
distance.
In the forward 1ocking movement of the dogs the point of the beveled or inclined
portion 115 of the ngid dog passes into the spare between two teeth of the escape-
ment wheel without touching either of said teeth, the contact of the escapement
wheel or tooth with the rigid dog taking place at about the junction of the beveled
portion 115 and straight portion 116 of said dog
In the returning rocking movement of said dogs as soon as the rigid dog starts
to part company with the tooth of the escapement wheel, which it restrained, said
tooth is instantly partially relieved of resistance, and during the entire movement
of the rigid dog from the escapement wheel said wheel, owing to the bevel of the
dog is enabled to continue its rotative movement until the point of the dog passes
away from the wheel Duing this retraction of the rigid dog the vibratory
feeding dog is passing into engagement with the ratchet wheel but into a notch o
space behind that which the rigid dog has passed out of, and as soon as the outward
or backward movement of the rigid dog is completed the ratchet wheel is free to
complete its letter spacing rotative movement, during which the feeding dog 108 18
carried by said wheel towards the right and against its back stop 126.
From this construction and mode of operation it will be observed that in
consequence of the beveled or inclined dog the caninge feeding devices may
operate partially during the backward movement of the ugid dog and hence afford
a partial feed at this time to the paper carriage For this reason more time is
given to the paper carriage to move a full letter space than in prior machines, the
movement of the carriage in this machine cominencing immediately upon the
removal of the pressure of the finger from the operating key, while in the prior
machines this movement of the carriage commenced only alter the rigid dog had
entirely left the rack and the type bars and finger keys had moved considerably
back to then normal positions The effect of releasing the caringe to commence
its feeding movement the instant that the pressure upon the actuating key 15
removed is to give the carriage more time to pass from one letter space to the next,
and in rapid writing the carriage may move its full letter space distance and come
to rest without any undue vibration before the next type reaches the paper on the
platen, and for this reason the side algument o spacing of the witing is greatly
improved. In writing at a very high speed the beveled portion of the dog which
moves very rapidly may be swung out of the ratchet wheel before the tooth which
at reaisted has time to follow the dog, but in this case as in slow writing the wheel
commences to turn and the callinge commences its feeding movement simultaneously
with the backward movement of the beveled dog, which backward movement of
course commences at the initial upward movement of the key and at the start of
the rebounding movement of the type bar. Ilence either in slow or rapid writing
the carriage is released or enabled to commence its feeding movement at an earlier
period than in machines having rigid dogs not provided with the beveled portion.

page_text: The advantage of this is clear when it is borue in mind that the carriage and its
attachments are of considerable weight and require some appreciable time for their
inertia to be overcome and for their vibration to cease after the completion of such
letter spacing movement.
The arm 124 is provided for the purpose of preventing the pivoted dog 108 from
rattling and making a noise during the return movement or movement towards the
right of the carriage, when such movement 18 effected without raising the escape-
ment wheel. It will be seen of course that if the escapement wheel be not raised
and the arm 124 were omitted the escapement wheel in rotating rapidly would
contact with the top of the dog 108 and cause it to vibrate rapidly and emit n
clicking or rattling sound, which is objectionable for this reason, and also on
account of the undue wear which would fall upon the dog and upon the teeth of
the escapement wheel. To avoid these objections the said aim 124 is provided, and
its mode of operation is as follows:
When the carriage is returned or moved towards the right as indicated by the
straight arrow at Figue 10, the escapement wheel through the rack and pinion
and the shaft, is rotated in the direction shown by the curved arrow at said figure,
and owing to the contact of the free end 125 of the said aim with the side of the
escapement wheel the arm is carried with said wheel by fiction for a short
distance and sufficient to cause it to move the dog 108 about its pivot and to the
position shown at Figure 10 in full lines, and to the position shown at bat
Figure 13 in dotted lines Or in other words by this action the point of the
dog 108 is cated down and below the plane of rotation of the points of the teeth
of the escapement wheel, and hence during the rotation of said wheel its teeth fail
to contact with said dog, thus permitting the carriage to be returned noiselessly
and without wear on the dogs or teeth. As soon as the dog is vibrated downwardly
enough to clear the teeth of the escapement wheel its motion ceases and it is helil
in this depressed position by the friction of the arm against the side of the escape-
ment wheel, this friction or pressure being obtained by the locker spring 109
As
soon as the rightward pull on the carriage is released the driving power of the
carriage moves it slightly in the reverse direction, or towards the left, thus giving
the escapement wheel a partial rotation in the reverse direction, which operates to
cany the aim 124 towards the right and bring the dog 108 back to its normal
position against the stop 126, which return movement of the dog is assisted some
by the spring 120
From the foregoing the advantage of having the dog 108 capable of occupying
three different positions will be apparent and besides obviates the necessity for
making the dog in two parts or double jouted, as heretofore. As far as this
feature of construction of the dog 108 is concerned the arm 124 may be dispensed
with although it is very desnable where wear and noise are to be avoided. Still
without this arm the dog would work perfectly The essence of this part of the
improvement consists in a construction wherein the dog when out of the ratchet
wheel or unacted upon may occupy a central o intermediate position, so that when
it 18 vibrated back into engagement with the ratchet wheel and is acted upon
thereby it may move to the right of said intermediate position, and when the
carriage is being returned and the escapeinent wheel 1otated in the opposite
direction the dog may be moved towards the left of said intermediate position,
onder that the teeth of the escapement wheel may slip upon and vibrate said
dog, if the amm 124 be not. used, and if it be used in order that said dog may be
depressed towards the left of the intermediate position to entirely escape the teeth
of the escapement wheel. This construction and operation of the dog involves
the employment of some movable stopping means for holding the dog in the
central or intermediate position, and we have found in practice that the hook shaped
spring bearing upon the two faces 118 and 119 not only serves to hold the said dog
in the said mtcrinediate position, but also acts to retuin the dog to said position,
when vibrated to either the right or the left thereof.
It will be observed when the escapement wheel is raised from engagement with

page_text: the dog 108, by means either of the release key or the line spacing lever through
the connections hereinbefore described, that owing to the removal of the lateral or
side pressure upon said dog by said wheel due to the driving power, the sping 73
of the dog 108 acts to vibrate said dog towards the left and to the said intermediate
position, and hence when the carriage is stopped and the hand is removed from the
release key or the line space lever, as the case may be, the escapement wheel will
drop down into engagement with said dog while in a central position but will
instantly carry said dog back against its stop 126, owing to the partial revolution
of the escapement wheel under the force of the main spring or diving power,
thus feeding the carriage at this moment one letter space, which movement may
represent the rebounding distance of the carriage when the rack is tripped and
the carriage stopped against the margin stop contrivance herein before referred to
The several improvements in 01 upon the platen carrier will now be
described
The shifting movement of the platen care between the stops 22 and 23 of
the carriage for punting upper case types, has been herein before referred to.
Owing to the construction by which this shifting movement was obtained
heretofore, when the platen carrier was raised to inspect the work, as at Figure 4,
the rocher arms would swing rearwardly, and when the platen was lowered they
would swing forwardly again and rather violently in both duections
To prevent
this action in the raising and lowering of the platen the following locking means
have been provided
At about the middle of the back rod 26 of the platen carrier is secured a
block 127, which when the platen carnet is down in working position stands in a
horizontal plane, as shown at Figures 5 nud 6 A plate 128 is loosely connected
to said back od 26 by means of two upturned hooks 129, the plate being cut away
between said hooks to accommodate the block 127. The rear end of said plate is
lotted at 130 and through this slot passes vertically a screw 131, which takes into
tapped hole in the aim 7, the head of the screw being larger in diameter than
the width of the slot to limit the upward movement of the tent end of the plate
On the underside of the plate and on each side of the slot is a lug 132 adapted to
bear against a shoulder or wall 133 formed on the upper side of said am 7. The
rear end of the block is provided with an angle piece 134 attached by a screw 135,
which piece when the platen carer is down to working position beats on the
underside of the plate at its front end and serves to hold the rear end of said plate
in an elevated position and with the lugs 132 above the plane of the shoulder or
wall 133, as shown at Figure 5, so that the platen carrier may be readily shifted
back and forth by the shifting Key for upper and lower care punting, these
movements being permitted by reason of the slot 130 in the plate, which is of a
length slightly greater than the throw of the platen carrier. The positions of the
When,
parts during the rear ward shifting movement is shown at Figure 6.
however, the platen canie 18 turned up for Inspection of the work, as at
Figure 4, the axis of motion being coincident with the rod 26, the nugle piece of
hifter 134 swings downwardly and simultaneously the plate 128 drops by gravity
and the lugs then con fall in front of the shouldci or wall 133. This action takes
place during the first part of the upturning movement of the platen carrier
During the remainder of such movement the angle piece or lifter moves entirely
It will be seen that
away from the plate and to the position shown at Figme 4.
by this construction and operation the platen cairiet is so locked or latched at the
beginning of the movement to swing it up to inspect or correct the work as that
the locker aims 20 and back rod 26 are prevented from moving rent wardly at this
time and hence the pins 21 are maintained against the forward stops 22
During the turning down movement of the plateu carrier when the device 34
arrives at the plate it acts to lift the same and raise the lugs 132 above the top of
the shoulder oi wall 133, aud thus restore the parts to the positions shown at
Figure 5.
The hooks 129 are presented from falling from the rod 26 by a top piece or

page_text: plate 136, which is secured thereto by a screw 137, this plate having forwardly
projecting fingers 136 which rest upon the top of said 'bar in the plane of the
hooks
This top piece or plate 136 also performs the office of locking or
holding the
platen carrier in its upturned position, the said plate being provided with an
pwardly projecting spring tongue 139, bent at its forward end to form a notch 140
Jor the front beveled end 141 of the block 127.
As will be seen at Figure 4, when the platen is tunel up the said spring tongue
aps upon the forward end of the block 127 with sufficient force to hold the
platen carrier in its raised position, but not so firmly as that the platen may not be
forced back still farther so as to bring the platen down upon the paper table 142,
The
which supported by posts 143 entering holes 144 in the carriage 3.
platen as pressed down on to the paper table only when it may be desned to secure a
very hum support, as in the making of erasures by rubbing, etc
145 is the shaft or axis of the feed rolle 140, which may be made in sections
and to protrude through openings in a metallic aprou on guide plate 147, secmed
at its upper end to a locking rod 148 extending across the platen carter and
attached to the side bars thereof by screw pivots or centers 149 at each end, the
Said apron o guide plate being preferably provided at its lower end with a
pressure bar 150, which may be graduated and marked to form a scale corresponding
with the letter-spacing of the callinge
On the
The feed rolle axis or shaft is supported in bearings in the lower ends of arms
o links 151, which are pivoted at 152 in cars 153 on the back 10d 26.
underside of each aim is attached by a screw 154 a plate spring 155, which bears
at its upper end against a bug on the back rod 26 and which terminates at its lower
end at near the pressure or scale bat 150 The purpose of these springs is to hold
the feed roller against the platen or the paper thereon with the requisite degree of
pressure.
On the upper side of each aim 151 13 a pin 156, and opposite thereto on the
tocking shaft 148 is a wing or lug 157, while at the left hand end of said shaft 18
preferably affixed a handle or level 158 having a rearward extension 119 adapted
to beat against the underside of one of the forks at the rear end of the left hand
bai 28. When the handle is pushed rearwardly the shaft 148 us locked and by
means of the wings acting upon the pins the arms 151, are vibrated slightly real-
wardly against the tension of their springs and the feed roller is moved away from
the platen or the paper thereon, as indicated by the dotted lines at Figure 5.
By this construction provision is made for the easy introduction and removal
of the paper, as well as for its adjustment in any direction when upon the
platen, the casting off of the feed roller leaving the paper free or loose upon the
platen
This
In order however to prevent any backward movement of the platen dung
adjustments of the paper thereupon a detent or dug 160 is employed. This device
18 preferably located upon the right hand end of the 1ocking shaft 148 and stands
normally out of engagement with the intchet wheel 33 at the night hand end of
the platen. When the handle or lever 158 is actuated and the feed rolle moved
rearwardly from the paper the point of the detent or dog is vibrated simultaneously
up into engagement with the ratchet wheel, as shown by the dotted lines at
Figure 5, thereby proventing said hatchet wheel and the platen from turning
backwardly accidentally during the shifting or adjustment of the paper
platen locking or holding detent may be arranged at any desired locality to perform
its locking function. If the ratchet wheel were at the other end of the platen
the detent might be made a part of the finger piece, or the finger pièce might if
desired be brought over to the right hand side of the platen and be made a part o
the detent. The main part of this improvement consists in moving into engage-
ment with the platen a detaining device simultaneously with the casting off ol
removal of the feed roller to prevent the accidental backward notation of the
platen.

page_text: Near each end of the front bai 27 of the platen carrier or frame is a clamp or
holder of special construction and carrying a small feed roll and a paper band
pressei oi clasp
Referring to Figures 28 and 29 more especially 161 is a bracket having a
horizontal portion (which rests upon the top of the T-shaped front bår 27) "an
upwardly piojecting portion and a downwardly projecting portion
The upwardly
projecting poition is notched at its upper edge to receive the upper edge of a
clamping plate 162, the lower edge of which passes under the head of the bar 27.
A screw 163 passes through a hole in said plate and enters a threaded aperture in
the upright portion of the bracket, whereby the bracket is retained in position
upon said bar. A. shoulder 164 on the shank of the screw limits the tuning-in
movement of the screw. A spring 165 between the head of the screw and the face
of the plate is provided to press upon said plate and enable it to clamp the
bracket and the rail with a yielding force or pressure, so that the contrivance as
whole may be readily slid lengthwise upon the bat 27 and be functionally held at
any desired position thereupon, the plate yielding slightly to any inequalities o
regularities in the bar, the shoulder 166 upon the screw in front of the plate
being normally out of contact therewith, so as to allow for this slight yielding
movement of the plate.
The downwardly extending portion of the bracket is hollowed out to receive a
spung-pressed puno plunge 167 that acts upon either of two flat faces 168 at
the upper end of a roll holder o fiamme 169, which 18 pivoted at 170 at the lower-
most end of said bracket This holder o fame is forked to receive a small
roll 171 mounted to tun fieely on a pivot pin thei ein This roll is provided with
a handle 172 by which it may be conveniently moved into either of two positions,
both of which are indicated at Figure 28
Attached by a screw to the horizontal portion of the bracket is a narrow plate
o rigid hinge 173, which is curved to conform substantially to the curvature of
the platen and which terminates at its lower inner end at about the locality of the
paper scale of pressure bai 150, which it preferably overlaps This curved
huge 173 is cut away or slotted at a point opposite the toll 171 to permit said roll
10 pass therethrough and into contact with the paper on the platen
These rolls 171 at the ends are employed more particularly to maintain the
paper firmly upon the platen when it may be desired to waite close down to the
bottom end of the sheet and after the tail end of the sheet has passed out of
the bite of the main feed rolle 146; but these rolls are also employed to advantage
in writing upon envelopes, cards and other stifl' matenals When these rolls are
not to be used they may be swung outwardly to the dotted line position shown at
Figure 28, at which they will he held by the sping pressed pin 167 bearing upon
the outer Hat face of the roll holder or frame, the roll being also held by said pin
in its working position by pressing upon the unei face of the roll holder, as shown
by the full lines at Figure 28
For the purpose of having the paper conform exactly to the sunce of the
cylinder or platen and for retaining it in contact therewith over a large surface a
band or presse 174 is employed at each bracket.
This bando presser is made of very thin sheet metal and is fastened at its
lower end to the lower free end of the heavier sheet metal finger 173, while at its
upper end the sand band or presser is pivotally connected at 175 to an atm
holder 176, which is pivoted at 177 in the upper portion of the bracket
On the
underside of the aim or holder 176 is a small coiled spung 178, which acts to press
said arm or holder upwardly and to cause the major part of the baud or presser to
conform to and hug a section or part of the platen upon its underside, shown
clearly at Figure 28. When the paper is introduced the said band or presser
accommodates itself in a like manner to the sui face of the paper on account of the
thinness and flexibility of the band and the hinging of the arin or holder, which
latter may descend slightly as paper is added to the platen. This construction has
been found in practice to be expressly desirable where envelopes or several

page_text: thicknesses of paper are written upon. The band acts automatically upon the paper
whatever may be the thickness or number of sheets and operates as explained to
cause the material to be properly conformed or shaped to the cylinder in the
temnity of the impression plane, where it is most desuable that there shall be no
buckle o bulge of the paper, which in machines having two types upon a bar
results in the production of blured on offset work above the line of writing when
the upper case letters are being unpressed This band or piesser shown on an
enlarged scale at Figure 30, is formed with a slot or opening 179 to permit the
piotiusion ther ethiough of the roll 171 when said ull is used.
These sping bauds or pressers being connected to the sludable brackets or
lamps hei embefore descubed, may in consequence be adjusted to and set at
various points along the front bai of the platen carrier to subserve then pin poses
with narrow paper and short envelopes, etc These bands or pressers may however
be permanently located at the ends of the platen canie front rail and at imter-
mediate points if desired.
At the center of the platen carrier front bai is aanged another bracket or
clamp, shown more particularly at Figmes 1 and 5. This bracket or clamp while
set normally at a central position upon said rail is nevertheless adapted to be
inoved endwise thereupon since the means for holding it are somewhat similar to
the means for holding the end brackets. Referring to Figure 5, the center
bracket 13 designated in its entirety by the numeral 180. It rests upon the top of
the bar and is provided with a lip 181, which engages with the underside of the
head of the bar in opposition to the lip at the lower side of the clamping plate 182,
the upper end of which is seated a recess in the top of the bracket.
clamping plate is held yieldingly to the bracket by a spung 183 in connection with
a shouldered screw 184, as herein before described with reference to the end
brackets.
The
In ears 185 projecting real wardly from the body of the bracket is pivoted at 186
a paper guide 187, which is cu ved at its lower end to match substantially the
em vature of the platen and which projects at its upper end to form a finger piece,
whereby the guide may be vibrated or moved to and from the platen. The guide is
provided with a log 188, having two fat faces adapted to be acted upon by a
spring-pressed pin 189 in an aperture m the body of the bracket, as shown cleaily
at Figure 5, in which view the said sping-pressed pin is acting to hold the lower
eud of the paper guide against the platen When the upper end of this guide is
pushed rearwardly the lower end is swung away from the platen and the lower
face of the lug 188 is moved up in front of the pin 189, which then acts to hold
said guide'away from the platen. This guide preferably carries at its lower end a
small 1oll 190, which may be employed to assist in the feeding of the paper,
envelopes on the like
kefeung now more particularly to Figures 31 and 32, centrally of the rout
bai 27 and himly attached thereto on its underside by screws 191 is a small
plate 192, which is forked on provided with two arms 193 at its left hand side to
receive the small grooved 1oll 2ɔ which travels upon the shift rod 24, herembefore
referied to. This shift 1od is mounted at the upper ends of levers 194, which me
connected as usual to a shift key at the key board (not shown).
On the underside of the plate 192 is firmly secured by a screw 195 a yoke
block 196, which straddles the shift rod 24, and through which more particularly
the platen carrict is shifted for upper case printing when the shift key is actuated
and the shift od vibrated. The yoke block is beveled or flaring at its lower end
to enable it to more readily embince the shift rod in the tuning down movement of
the platen after inspecting the work on the underside thereof.
The front side of the yoke block is grooved or recessed to receive the front
scale ba 197 at its upper edge, and sand bai is secuted in position thereupon
additionally by a small bont finger 198 attached to the yoke block by a screw 199.
The ends of the scale bai are attached each to an arın 200 scoured to the underside
'

page_text: of the platen carrier front bar 27 and extending first horizontally outward, ann
then obliquely downward, as shown more particularly at Figme 2
In connection with the scale is employed a pointer on index 201, which is formed
on an aim 202 secured by a sciew 203 to the underside of the shift ail (see
Figs. 31 and 32). This pointer is set exactly in the plans of the striking centers
of the types, and hence indicates in connection with the scale, the printing point
and the travel or progress of the cat ringe
The means for feeding the inking bbon will now be described in connection
with its associated devices.
The uhing ibbon 204 is attached at its ends to two spouls 205, one at each side
of the machine. These spools are splined upon their shafts 206 and 207, so as to
rotate therewith and also slido endwise or longitudinally thereupon The shaft 203
is provided at its car end with a bevel geai 208, and the shaft 207 with a bevel
gear 209
A bevel gear 210 upon a long driving shaft 211, is adapted to mesh
with the bevel gear 208 and rotate the shaft 206 and the spool ther cupon, while
bevel gen 212 at the right hand end of the shaft 211 is adapted to mesh with th
The sal
bevel gear 209 and rotate the shaft 207 and its spool thereupon
shafts 206 and 207 are adapted to be alternately rotated, so that the ribbon may
wind first upon one spool and then upon the other, and for this purpose the
shaft 211 is movable lengthwise or end wise so as to first put the gears 208 and 210
in mesh and then the gears 209 and 212 m mesh, and so on alternately, the main
driving shaft sliding in suitable beamngs in the framework Upon the shalt 211
is mounted a bevel gear 213, which is engaged at all times by a bevel gear 214 ou
the axis of the spring diving dium 13, to which is attached one end of the driving
When
belt or band 12, the other end of which is attached to the paper carriage.
the caringe moves forward or towards the left the shaft 211 revolves and at the
same time either one of the spool shafts 206 o 207 is driven. Depending of
course upon which set of bevel gears is in mesh or engagement. This aangement
of shafts and gearing for rotating the ribbon spools and moving the abbon
lengthwise from one spool ou to the other is that commonly employed in the
well-known " Remington" machine
The present improvements relate to means for moving the ribbon crosswise, on
in the dnection of its width and this movement is preferably made during the
sliding on longitudinal movements of the main driving shaft 211 to alternately
rotate the spools.
Mounted upon the main diving shaft 211, near its left hand end is a cylinder 217
having a double cam groove 218 formed about its periphery and having on its letu
hand side or face a series of notches or teeth 219. This cam cylinder or cam is
piovuled with a flange 220 at the end of a short neck 221, and between said flange
and the side or face of the cam is arranged the head 222 of a screw bolt 223,
fastened by a nut to a bracket 224 which is attached to the framework by
screws 225 and 226. The head 222 is provided to prevent the cam from moving
endwise upon the shaft 211, which lattei passes through a perforation in the inner
end of the bracket 224 and at its protruding end is provided with a crauk
handle 227. A lever 228 is pivoted upon the plaш portion of the screw 226 and
at its rear end is forked or notched as at 229 to receive a pin 230 m the frame-
work, which pin in connection with the notch 229, serves to limit the up and down
vibration of the lever 228, which at its muer or forward end is provided with a
handle 231. Between its ends the lever 228 is provided with a downwardly
extending fork 232 to straddle the shaft 211 and enter reduced portions or
grooves 233 and 234 thereon. When the fork 232 is in engagement with either
of said grooves the shaft 211 is prevented from moving end wise or longitudinally.
Upon the lever 228 is pivoted at 235 a pawl 236 having a toe-piece 237 passing
through a hole in said lever and adapted to engage successively with the series of
notches or teeth 219 on the cam. The said pawl 236 18 provided with a spring 238
to hold the point or toe of the pawl normally in engagement with one of said

page_text: notches or teeth By this construction when the lever 228 is pulled down the paw
will pully rotate the cam, and this through the mechanism now to be described
will effect a crosswise movement of the ribbon spools and ribbon, but to prevent
any overthrow or undue movement of the cami in case the lovel should be violently
depressed a detent or dog 239 engages with said notches or teeth 219 to check the
movement, the said detent or dog being mounted at the free end of a spung 240,
which permits the detent to leave its notch when the lever is depie-sed but which
forces on snaps it into the next notch immediately it comes into alignment with the
detent
Aranged within the cam groove or fork 218 18 a small roller 241 at the lower
end of a vertical pin 242 supported in aims 243 and 244 connected together. The
aim 243 is pivoted upon a journal 245 and is prevented from dropping therefrom
by the head of a screw 246, whose shank enters said Journal The Journal 13-
vertically aanged in a tubular projection 247 extending downwardly, and sand
Jounal is provided at its upper end with a supporting head or flange 248. As the
cam rotates the arm 243 is vibrated or rotited about the pivot 245, and this motion
13 communicated to a horizontal lever 249 pivoted at 250 on the underside of the
top plate This level 249 is formed with a cam slot 251, in which plays of works
a small roller 252 at the upper end of the pin 242. The inner end of the lover 249
18 attached by a pin and slot connection 253 to a bar 254 attached to or forming a
part of the ribbon spool canter at the left hand side of the machine, which consists
of two downwardly projecting arms 255 and 256 connected together by an integi al
cross arm 257. The upper ends of the aims 255 and 256 have holes or perforations
to permit them to slide upon a od 258, supported at its ends by pointed screws 259
passing through brackets 260, which brackets at their lower ends support the
ibbon spool shaft 206. This iod 258 has a flat side 261 and at its outer end is
provided with a head or flange 262, which has two notches 263 that are engaged by
Abend formed in a flat spung 264, whereby the said rod is prevented from
accidentally tumung
The arms 255 and 256 of the ribbon spool carrier embrace the heads or flanges
of the ribbon spool on the left, and the aim 255 18 made preferably longer than the
other arm and forked at its lowermost end to straddle the shaft 206 and thereby
prevent the ibbon spool carrier from turning, and to serve at the same time as a
guide therefor in its sliding movements upon the 1od 258.
265 designates, as a whole, the ribbon guide plate on arm, which at its left hand
end is provided with a hook or bent portion 266 of a length pre'erably equal to the
distance between the aims 255 and 256 and adapted to clasp or embrace the
od 258, so as to shde thereupon This hook-like part 266 is formed with a spring
tongue 207 which acts as a sort of spring catch to hold this end of the guide plate
m proper position
The opposite or right hand end of the guide plate is provided with two down-
wardly extending aims or hugeis 268, which embrace the heads or Hanges of the
ight hand spool. Between its ends the guide plate is cut away as at 269 for the
passage of the types, and on either side of this cut-away is a ribbon supporting aim
or finger 270, attached to the underside of the plate. Between these fingers and
the ends of the guide plate are a series of slots 271, which show the passage of the
ribbon thereunder The guide plate is swung upwardly with the 10d 258 as a
center of motion for the purpose of cleaning the types, making repaus, etc., and in
Swinging the ribbon guide to its upturned position the 1od 258 tuins partially about
its pivots or sciews, and in turning the swell or projection of the spring 264' 1s
forced out of the lower most notch 263 and spings into the notch behind, as the
latter comes around, so as to fictionally hold the said rod and maintain the ribbon
guide in its pught position. One side of the rod being flat the ribbon guide is
prevented from turning independently upon said 10d. When the ubbon guide is
turned down to working position the rod 258 turus slightly in the opposite direction
and the spring engages with the first notch again to hold the rod.

page_text: The ibbon having been attached at one end, say to the left hand spool, is wound'
thereupon, and the loose end of the ribbon is then passed up through the slot or
opening 272 in the top plate over the hook 266, then down through a slot 273 in
the guide plate, thence under the guide plate, theuce over the left hand finger,
which is free at one end to permit the ribbon to be passed over the same, thence
past the opening 269, thence over the right hand finger 270, which is likewise free
at one end, thence along under the right hand half of the guide plate to and through
the wine loop 274, and thence downwardly to the ugh: hand spool and fastened
thereat This threading or attachment of the bhon to the guide plate is done
before the guide plate is placed in working position Aftor the threading
operation the hook 266 18 sprung upon the 1od 258 and the aims or fingers 268 are
set astride the right hand ribbon spool
As the witing is performed with the parts in the positions shown at Figure 21.
the ribbon will be wound step by step upon the left hand ribbon spool, and when
this spool is full the direction of movement of the bhon must be reversed, and
this is accomplished by sliding the driving shaft 211 towards the night so as to
engage the bevel geais 209 and 212 and disengage the gears 208 and 210, but
before this longitudinal movement of the driving shaft 211 can be effected the
level 228, whose fork 232 latches said shaft, must be raised to unlock said shaft,
which may then be moved freely endwise, or so that the
be moved
may
groove
Inwardly into the plane of vibration of the fork 232 (see Fig 8) When this
movement is made the lever 228 may be pulled down so that the fork 232 may
engage with the groove 234 and thus lock the sliding driving shaft 211 against
accidental endise movement and maintain the right hand gears 209 and 212 in
working engagement.
234
This downward movement of the level 228 or latching operation of the driving
shaft 211 effects simultaneously a partial transverse on crosswise inovement of the
inking ribbon, through the mechanism het embefore described and whose operation
will now be more particularly explained
When the lever 228 is pulled down the pawl 236, which is always i engagement
with one of the notches of teeth in the cam, operates to turn sand cam a distanco
proportionate to its throw or vibration, or the distance from one tooth or notch 219
to the next. This turning movement of the cain, through the roller in the
groove 218 and pin 242, effects a vibration of the pivoted arm 243, and this
ibration through the roller 252 and cam slot 251 effects a vibration of the lever 249,
aud the movement of this leve in turn eflects an endwise movement of the aim 254
and the ribbon spool carrier, and though the guide plate and its connection to the
ight hand spool the ribbon is moved transversely or in the dijection of its width
so as to bring a new field or portion thereof to use. When the ibbon 18 all
wound upon the right hand spool the driving shaft 211 1s pulled endwise towards
the left, after the lever 228 has been inised to disengage the right hand spool gears
and re-engage the left hand spool geare, and when said lever 228 19 again depressed
to relatch the said shaft 211, the cam is turned the distance of another notch, and
though the intermediato mechanisin described the ribbon is moved widthwise
another step, so as to bring still another field or portion thereof into the plane of
the impression point. In this manner the ribbon is moved step-by-step crossw.e
each time the shaft 211 18 moved longitudinally, or in other words, each time the
dnection of longitudinal travel of the ribbon is 1eversed The mechanism is
preferably constructed to move the ribbon crosswise five successive steps in one
direction, and then five successive steps in the opposite direction, there being ten
notches on teeth upon the cam, but the mechanism may be so changed as that the
ribbon shall be moved a greater or smaller number of steps crosswise, if desired
By reason of the construction and arrangement of the mechanism for moving the
ribbon crosswise little or no attention is required on the part of the operator, since
the movements are effected automatically by the mere reversal of the longitudinal
movement of the ribbon, and as a result of this mechanism the ribbon may be

page_text: utilized over its entire surface, thereby yielding an infinitely greater number of
impressions before becoming worn out or exhausted than is the case with ribbons
which have no automatic crosswise movement, and where dependence is had upon
the attention of the operator to move the ribbon widthwise by hand.
Having now particularly described and ascertained the nature of this said inven-
tion, and in what mannor the same is to be performed, declare that what I
claim 19:-
1. In a type writing machine, the combination of a carnage having a swinging
feed rack, a shaft having a pinion and an escapement wheel and mounted in a pivotal
support or bening, so that the escapement wheel may he moved from an engagement
with the escapement dog, substantially as set forth.
2 In a type waiting machine, the combination of a carriage having a swinging
feed rack, an escapement dog, an escapement wheel therefor, a pinion for the rack,
a rotatory shaft for said wheel and piuton having also a vibratory or swinging
movement, and means upon the carriage or platen carrier to separate the said
escapement wheel from its dog through the devices described.
3. In a type waiting machine, the combination of an escapoment wheel adapted
to swing upwardly to be disengaged from its dog, a swinging rack and pinion
connected to said wheel, and a key for depressing the rack and pinion and lifting
the escapeinent wheel substantially as set forth.
4. In a type wilting machine, the combination of a ratchet wheel adapted to
Bwing upwardly to disengage from its dog, a swinging rack and pinion, and a
release key connected to the rack and attached to the platen carrier, substantially
as set forth.
5. In a type waiting machine, the combination with the escapement mechanism
including the swinging escapement wheel and rack and pinion, of a line spacing
mechanism for the platen connected to the escapement mechanism in a manner
Buch that during the line spacing operation and tho simultaneous return of the
platen for the beginning of a new line the escapement wheel may be lifted from
engagement with its dog, substantially as set forth.
6. In a type writing machine, the combination of an escapement dog, a pivoted,
spring-pressed bearing, a shaft adapted to rotate there and also to swing with
said bearing, an escapement wheel on one end of said shaft, a pinion on the opposite
eud, a swinging rack constantly in mesh with said shaft, and means for depressing
said rack and, through the pimon, shaft and bearing, effect the lifting of the
ratchet wheel, substantially as set forth.
7. In a type writing machine, the combination with the dog, escapement wheel,
pinion, swinging shaft, and swinging rack, of a hook ou catch adapted to maintai
said rack and pinion in constant engagement, substantially as set forth
8. In a type writing machine, the combination with the dog, swinging shaft,
escapement wheel, pinion, swinging rack and bai attached thereto or forming a
part thereof, of a sping-actuated pivoted hook engaging said bai, substantially as
set forth.
In a type writing machine, the combination of a swinging escapement wheel
and rack and pinion, a platen, a line spacing mechanism therefor, and a trip-
mechanism for automatically releasing the escapement wheel and rack and pinion
during the return movement of the carriage and before the latter is fully arrested,
substantially as set forth.
10. In a type writing machine, the combination of an escapement mechanism
comprising the swinging escapement wheel and rack and pinion, an nrm connected
to said rack and adapted to contact with a relatively fixed atop on the frame work
to arrest the movement of the rack towards the right before the termination of the
movement of the carriage in the same direction, a line spacing mechamsin adapted to
1otate the platen, and a device connected to said line spacing mechanism and to the
feed rack adapted to depress the latter and to release it when its motion towards the
C

page_text: night is arrested by the said relatively fixed stop, whereby the rack, pinion and
escapement wheel may return to their normal positions in advance of the anest of
the carriage, substantially as set forth.
11. In a type writing machine, the combination of an escapement mechanism
compusing a swinging escapement wheel, a pinion and feed rack, an arın conuected
to said feed inch and adapted to contact with a relatively fixed stop, a spring-
pressed pin on said feed rack, a lever or lock shaft on the carriage adapted to act
upon said pin, and a platen line spacing mechanism adapted to act upon said level
or rock shaft, the whole operating in substantially the manner set forth.
12 In a type writing machine, the combination of an escapement mechanism
comprising a swinging ratchet wheel, pinion and rack, the rack being attached to a
fiame hinged upon the carriage, which latter bas a sliding movement towards the
ight independently of said pivoted rack frame, an aim projecting rearwardly from
said frame adapted to contact with a relatively fixed stop, and a platen line
spacing mechanism connected to said feed rack to operate in substantially the
manner described.
13. In a type writing machine, and in an escapement tripping mechanism,
substantially as described, the contact 81, and the adjustable relatively fixed
stop 82
14. In a type writing machine, and in an escapement tripping machine, sub-
stantially as described, the combination of the spring presseri pin 75, the roch
shaft 73 detachably connected therewith, and a line spacing mechanism.
15. In a type writing machiue, the combination with an escapement mechanism,
substantially as described, the tripping mechanism therefor having substantially
the mode of operation described.
16. In a type writing machine, the combination of a paper calliage, a inarginal
stop contrivance consisting of a block adapted to slide upon two parallel rods, the
lower one of which is provided with a series of notchos, and a spring pressed stem
passing through said block and having a catch at its lower end to engage with suid
notches, substantially as set forth.
17. In a type wing machine, the combination of a paper catage, a maiginal
stop consisting of a block adapted to slide upon two parallel 1ods, the lower one of
which is provided with a series of noteles, a sping pressed stem passing through
said block and having a catch at its lower end adapted to engage with said notches,
and an adjustable stop 82 adapted to be engaged by an arm or contact piece of n
carriage-escapement mechanism, substantially as set forth.
18. In a type wuting machine, the combination with an escapement wheel or
rack, of the beveled dog 116 adapted to operate in substantially the manuci
described.
19. In a type writing machine, the combination of a power diven paper carriage,
an escapement wheel or rack, a pivoted or Hexible feeding dog, and a bevele l
holding dog, substantially as described.
20. In a type wisting machine, the combination of a power diyen paper carriage,
an escapement wheel or tack, a holding dog, and a spring-pressed feeding dog having
a central normal position and adapted to be moved to either side thereof, substantially
as described.
21. In a type writing machine, the combination of a power driven
paper carriage,
an escapement wheel or tack, a holding dog, and a pivoted feeding dog having two
faces and asping adapted to bear thereupon, substantially in the manner
described.
22. In a type writing machine, the combination of a power driven paper carriage,
an escapement wheel or rack, a holding dog, and a spring pressed feeding dog
provided with an arm or device adapted to contact with the escapement wheel or
rack during the return movement of the carriage and by such contact move and
hold the feeding dug out of engagement with the escapement wheel during such
tunc.

page_text: 1
23 In a type writing machine and in an escapement mechanism, the escapement
wheel, and the escapement dogs, constructed and oporating in substantially the
manner set forth.
24. In a type writing machine, the combination with a platen carrior having a
rearward swinging movement on arms or links for upper case printing and adapted
to be turned up for inspection of the work, of a latch mechanism, substantially as
described, for preventing the platen carrier from shifting upon its arms or links
during the turning up movement.
25. In a type writing machine, the combination with a platen calier having a
reat ward swinging movement on arms or links for upper case printing and adapted
to be tuned up for inspection of the work, of a gravity latch plate hinged upon the
bach rod of the platen carrier and adapted to fall when the platen carrier 18
turned up, and a device upon said back rod adapted to lift said latch during the
turning down movement of said platen carrier.
26. In a type waiting machine, the combination with a swinging platen care!
constructed substantially as described, of a plate hinged upon the back iod of said
canner, a lug at the rear end of said plate adapted to engage with a shoulder on the
carage when said platen camel is turned up, and a device on the said back
od adapted to lift said plate when the platen carrier is turned down
La
27 In a type waiting machine, the combination of a platen carrier, a platen
rotatably mounted therein and provided with a ratchet wheel, a feed roller mounted
on swinging atins or links, a lever or handle for moving said feed roller out of
contact with the platen or the paper thereon, and a detent for engaging said ratchet
wheel when said roller is moved away from the platen for the purpose of holding
said platen against backward rotation, substantially as set forth
28. In a type witing machine, the combination of a platen carrier, a platen
rotatably mounted therem and provided with a ratchet wheel, a feed roller inouited
upon pivoted arms or links, and a rock shaft having at one end a lever or handle
and at the other end a detent, the whole operating in substantially the manner set
forth.
29 In a type writing machine, the combination with the front bar of the platen
canie, of the end bracket consisting of the main part 161 caying a feed iollor,
the clamping plate 162, the screw 163, and the spring 165, as set forth.
30. In a type witing machine, the combination with the platen, of a thun band
or presser 174 held at its lower end on the under and forward side of the platen
and supported at its upper end upon a spring actuated arm or holder
31. In a type waiting machine, the combination with a platen, of a thin band, or
presser adapted to automatically conform to the surface of the platen and the paper
The con, and arranged substantially ns described.
32. In a type writing machine, the combination with a platen, of the curved
gule finger, a thin metallic band or piesser attached at one end to the lower inner
end of said finger and attached at its other end to a spring-actuated aim or holder,
substantially as sot forth.
33. In a type writing machine, the combination with a platen, of a curved guide
finger having a slot, a thin baud or presser attached at one end to said finger and
living also a slot and attached at its upper end to a sping-actuated arm or holder,
and a feed roll adapted to pass through said slots and bear upon the paper upon
the platen, substantially as set forth.
34. In a type writing machine, the combination with a platen, of a curved guide
finger and a thin band or presser attached thereto and to a pivoted spring-actuated
aim or holder on a movable on adjustable bracket, substantially as set forth.
35. In a type writing machine, the combination with the platen canner, and the
shift rail, of the plate 192 attached to the platen carrier front bai, the roller
Journaled in aims 193 on said plate, the yoke block attached to the underside of
said plate, and a scale bar attached to the face of said yoke block, substantially as
set forth.
36. In a type writing machine, au inking ribbon movable crosswise by a rotatory

page_text: cam and intermediate devices, in combination with means for manually rotating
said cam step-by-step, substantially as set forth
37. In a type writing machine, an inking ribbon adapted to be inoved crosswise
by a rotatory cam and intermediate devices, in combination with a diving pawl for
rotating said cam step-by-step, substantially as set forth
38. In a type writing machine, an inking ribbon adapted to be moved crosswise
by a rotatory cam and intermediate devices, in combination with a pivoted aim,
carrying a driving pawl adapted to engage teeth or notches in said cam to 1otate
the same step-by-step, substantially as set forth.
39. In a type writing machine, an inhing ribbon having means for moving it
longitudinally from one spool upon another and adapted to be moved crosswise by
a rotatory cam and intermediato devices, in combination with menus for manually
turning said.cam step by step, said means being adapted also to lock the shaft by
which the ribbon spool shafts and ribbon spools are rotated, so that in the act of
lock ing said driving shaft on reversal of the longitudinal travel of the ribbon, the
cam is simultaneously partially rotated and the ribbon fed or moved a step widthwise
ol crosswise.
40. In a type writing machine, the combination of an uking ribbon, a pan of
ribbon spools connected together, a pair of ribbon spool shafts provided each with
a bevel gear, a driving shaft having an endwise movement and provided with bevel
gears and adapted to engage and alternately drive the ribbon spool shaft gear, a
cam mounted to turn with said driving shaft and provided with notches or teeth, a
pivoted arm or lever for locking said shaft against end wise movement, and a driving
pawl mounted upon said arm or lever to partially rotate said cam during the locking
of the diving shaft, and simultaneously through intermediate mechanism connected
to the ribbon spools, effect a crossw 180 movement to the inking ubbon, substantially
as set forth.
41 In a type writing machine, the combination of an inking ribbon, a pair of
ibbon spools connected together so as to move end wise in unison, and mechanism
for moving said spools consisting essentially of the bar 254, slotted lever 249
attached to said bar, pivoted arm 243, pm 242, cam 217, and means for turning
said cam step-by-step, substantially as set forth.
42. In a type witing machine, the combination of the king ribbon, the guide
plate therefor having at one end fingers to embrace one of the bbon spools and
connected at its opposite end to the opposite ribbon spool carrier, and means sub-
stantially such as described, for reciprocating said carrier step-by-step and moving
the inking ribbon and its guide transversely or crosswise, substantially as set forth.
43. In a type writing machine, the combination of a reciprocatory ribbon spool
caner, a guide rod therefor, and an inking bbon guide detachably mounted upon
Raid guide iod and movable with said ribbon carrier, the said king ribbon guide
baving menus at its opposite end to engage the other ribbon spool, substantially as
set forth.
44. In a type witing machine, the combination of a reciprocatory ribbon spool
carrier, a guide rod therefor, an inking ribbon guide attached at one end to said
rod and at its opposite end connected to the other ribbon spool, the said od being
also adapted to turn when the ribbon guide is swung up, and means for holding saul
rod and said ibbon guide when the latter is in its upturned position, substantially
as set forth.
45. In a type writing maclune, the inking ribbon guide consisting of a plate
having a central opening for the passage of the types, and means at one end to
connect it with a ribbon spool cairiei, in order that it may slide therewith upon a
guide rod, and having at its opposite end means for connecting the opposite ribbon
spool.
46. In a type writing machine, the inking ribbon guide consisting of the slotted
plate 265 baving the hook 266, tongue 267, finger 266, opening 269, arnis 270, slot 273,
and loop 274.
47 In a type writing machine, in combination with the uking ribbon, its abbon

page_text: spools, its shafts, and its mechanisms for rotating the spools alternately and moving
the ribbon longitudinally in opposite directions, the mechanism substantially as
shown and described for moving the ribbon crosswise and in substantially the
manner set forth.
48. In a type writing machine, an inking ribbon guide extending noross the
machine and connecting one spool with the other so that both spools may be moved
endwise in unison and the ribbon carried back and forth in the duection of its
width, substantially as set forth.
Dated this 27th day of December 1894.
FELL & WILDING,
Agents for the Applicant.