Year: 1889

page_text: I, GEORGE WASHINGTON NEWTON YOST, inventor and manufacturer, of Number 6,
Wall Street, in the City, County and State of New York, United States of America,
do hereby declare the nature of my said invention and in what manner the same is
to be performed, to be particularly described and ascertained in and by the following
statement:
My invention relates more particularly to that class of type writing machines
known as bar or lever machines wherein the type are individually mounted upon a
series of independent bars, levers or carriers, and are adapted to be separately and
successively moved to a common printing point through suitable mechanism connected
with the finger keys of the machine.
The main objects of my invention are to produce a small, compact and rapid
type-writing machine, and one in which the type shall be self inking, and the
alignment of the printing accurate, and not liable to become imperfect by reason of
wear of the parts.
In the accompanying Drawings,
Figure 1 is a top plan view of a type-writing machine embodying my invention.
Figure 2 is a front elevation of the same.
Figure 3 is an elevation of the same looking from the right hand side.
Figure 4 is a vertical, longitudinal, central section of the same showing only two of
the type-carriers.
Figure 5 is a vertical, transverse section taken at the line of Figure 1, with
the paper-carriage raised.
Figure 6 is a diagrammatical view of the arrangement of key-levers and connecting-
rods.
Figure 7 is a detail view to show the type-carrier and its mode of operation.
Figure 8 is an enlarged side and front elevation of the type-socket.
Figure 9 is an enlarged side and top view of the type employed.
Figure 10 is a plan view of the type-guide and a portion of its support..
Figure 11 is a perspective view of the paper carriage looking from the rear.

page_text: Figures 12, 13, 14, 15, 16 and 17, are views to illustrate the construction and
operation of the devices employed for effecting the letter-space feed of the paper-
carriage.
Figure 18 is
vertical section of the paper-carriage taken at Y, Y, Figure 5.
Figure 19 is a vertical section taken at the line Z, Z, of Figure 18, to illustrate the
devices employed for effecting the line space movements of the pape..
Figure 20 is a top view of the base-plate.
Figure 21 is a perspective view of the signal-mechanism.
Figure 22 is a perspective view of one of the, paper-table hinges showing the
means, for limiting its movements.
Figure 23, is a central, vertical section of the paper-carriage driving mechanism.
Figure 24 is a face or side view of same with the button or head removed.
In the various views the same parts will be found designated by the same numerals
of reference.
1, designates the base-plate or bed of the machine, which is provided with side and
end depending flanges; 2, forming a housing for the key-levers; their supports, etc.
The bed plate is perforated at 3, in a transverse direction in eight parallel rows for
the admission and operating of the stem-keys, and between rows four and five is per-
forated as seen at 4, for the passage of the stem of the space-key. It is also provided
with perforations 5, for the type-carrier connecting rods, and with perforations 6, for
the sub-lever connecting links.
7, 7, 7, 7, represent four posts or pillars, firmly secured to the bed-plate, upon
which is screwed or mounted the top-plate or type-ring 8, of the machine.
The key-levers are designated by the numeral 9, and preferably are all levers of
the first order, their fulcrum posts or supports, being marked with the numeral 10.
Each key-lever is provided near each end with a downwardly projecting lug 11,
to prevent endwise movement of the lever, and hence any accidental disarrangement
of the same.
12, 12, are the finger keys, the stems, 13, of which fit into socket pieces 14,
which pass through the perforations 3 in the bed-plate. The front ends of the
key-levers pass through slots in the lower ends of the socket pieces, and the rear
ends through similar slots in the lower ends of the connecting rods 15, and the
connecting links 16, which respectively depend or pass through the perforations 5
and 6, in the bed plate.
In assembling key-levers each one is passed through a slot in the fulcrum-
post 10, which is fastened to the under side of the bed-plate, and connected to its
finger-key and connecting-rod or link before the stem 13, of the finger key is
inserted within the socket piece and while the latter is free to be slightly vibrated
from the vertical.
The stems of the finger keys pass down through perforations in a key-board
frane 17, which is mounted securely upon the bel-plate, at the locality marked IS.
The key-board frame preferable extends rearwardly at each side as seen at 19, and is
connected to side shields 20, which, with the front and back shields 21 and 22 enclose
the interior working parts of the machine and protect them against dust, breakage, etc.
These rearwardly extending portions 19; form handles for conveniently lifting the
machine and carrying it about.
The key-levers 9, are all arranged in parallel lines and equi-distant, while the con-
necting rods 15, are all arranged vertically in a circle.
In building machines of this description it is apparent that some of the connecting
rcds on the right and some on the left hand side of the machine occupy so nearly the
same vertical planes, (taken longitudinally of the machine), as to preclude the
possibility of arranging their respective key-levers directly opposite or in line (as may
be done with the key-levers of the remaining connecting-rods of the machine), and to
avoid this difficulty I place some of the key-levers, which operate said connecting rods
on the right and on the left hand side, in planes wholly exterior to the circle occupied
by all of the connecting rods, and make transverse connections between such key-levers
and their respective connecting rods.

page_text: Referring now particularly to Figure 6, the connecting-rods arranged in a circle
are indicated by the numeral 15, and the finger-key-levers by the numeral 9.
In this figure it will be observed that sixteen connecting rods on the right hand
side and sixteen on the left hand side lie in longitudinal vertical planes overlapping,
or so nearly coinciding, that it would be practically impossible to connect to each a
lever extending from the front of the machine in a corresponding or coincident
plane, and at the same time have all the levers occupy substantially the same
horizontal plane. Therefore, I place the key levers which are to operate upon
said connecting rods in planes exterior thereto, and make lateral connections between
the same.
In the drawings will be found illustrated the means employed by me for coupling a
connecting rod occupying one plane longitudinally of the machine with a longitudinally
arranged key-lever occupying another plane.
The said ineans I designate an offset or lateral connection, and it consists preferably
of a lever 23, of the second order, having its fulcrum at 24, in a stand 25, upon or
formed integral with the bed-plate. These levers 23, I denominate sub-levers;
preferably they are of varying lengths and radially arranged, and their free outer ends
are connected to the upper ends of the connecting-links 16, which at their lower ends
are connected to the exteriorly-arranged key-levers.
To the upper end of each connecting rod 15, is pivoted at 26, a link or lever 27,
whose outer end is preferably fulcrumed upon a wire ring 28, housed or contained
within a slot 29, in the circular top-plate 8, which is provided with a series of
vertical slits or slots 30, cut or formed radially of the same. The outer end of each
lever 27, is formed hook-shaped, or with an opening or passage-way 31, so that it
may be hung upon the fulcrum-ring 28.
The levers or links 27, are kept in position or from rising by an annular cover-
plate 32.
To the inner free end of each lever 27, is pivoted at 33, a tppe-carrier consisting
preferably of a bar 34, having at its upper end a laterally projecting arın 35, and at
its lower end a laterally projecting arm 36 bent in a direction opposite to that of
the arm 35.
To the arm 36, is pivoted at 37, one end of a link 38, whose other end is
connected to some stationary part of the machine, preferably to a centrally arranged
standard 39, provided with a circular supporting plate 40. The links 27 and 38
vibrate in opposite directions, and cause the type carrier to move in the peculiar
path illustrated. A cover 41, may be provided to keep the links 38 in place, and
this may be held in position by a nut 42, screwed onto the upper threaded end of the
standard 39.
To the arm 35 is attached the printing-type 43, which is preferably mounted in a
socket piece 44, pivoted at 45 to said arm. The said socket piece fits within a
slot in the arm 35, and is provided with an opening 46, through which passes
a pin 47, of less size or diameter than said opening to permit the socket piece to move
or vibrate.
148 designates an inking-pad arranged within a bolder 49, which may be formed
integral with the cover-plate 32, or separate therefrom. The said inking-pad is
arranged at right angles to the type when at rest, or in its normal position, so that the
character may be fully or evenly inked. The pad-holder and the cover-plate may be
held in place by fastening devices 50, consisting of a plate having at one end a
flange 51, which projects downwardly against the top-plate 8 while its opposite end
passes into a notch or recess in the cover-plate 32. A screw, 52, passes through a hole
in the fastening-plate-into a tapped hole in the top plate 8.
1
The pivotal support 40 is arranged centrally of the machine widthwise, and the links
or levers 38 radiate outwardly and downwardly therefrom. The fulcrum-ring or
support 28.is arranged exteriorly of and concentric with the support. 40, and the links
or levers 27 extend therefrom in radial lines inwardly and downwardly toward the
links 38. The inking-pad is arranged above the fulcrum-ring 28 and between the

page_text: 3.
latter and the platen. The type stand above the links 27 and 38 and their pivotal
supports or fulcrums.
By arranging the links to vibrate in opposite directions, or to the right and left, I
am enabled to move the type in the shortest possible path to reach the printing point,
. and thus secure rapidity of action. In moving to the printing point each type takes
two paths or courses, being carried first in substantially a horizontal direction to a
point opposite the printing surface and then in a direction substantially at right angles
to its first path and perpendicular to the printing surface.
By arranging the links 27 to radiate inward and downward, and the links 38
outward and downward, I am enabled more particularly to secure the perpendicular
movement of the type at the end of the stroke to effect the printing (whereby
blurring is avoided) for by the time the type has traveled inward and opposite to
the printing surface, the links 27 and 38, have practically become parallel thus insuring
a movement of the type in substantially a straight line as the vibration of the links is
continued, to effect the impression.
I am enabled by my arrangement to have the type and the inking surface both at
the upper part, or the same side of the machine, and hence permitted to clean and
change the type and re-ink the pad or insert a new one quickly and with great
facility. Moreover, I am enabled to have the platen at the upper part of the
machine in proximity to the type and the inking-pad, and thus secure a low machine
of small dimensions.
53 designates a circular universal bar or wheel, (preferably grooved or recessed on
its under side to hold a felt or yielding facing) which rests upon lugs 54, extending
inward radially from the connecting rods 15. The centre or hub 55, of the universal
bar is provided with a depression 56, into which is seated the lower end of a vertical
rod 57, mounted to slide in the bracket 39.
58 represents a horizontally arranged lever fulcrumed at 59, in the bracket or
standard 39, which passing through a slot in the rod 57, connects at its forward end
by a slot, with the upper end of a vertical link or rod 60, attached to the rear end of
a space key-lever 61, provided with a stem key 62, of a construction similar to that of
the character stem-keys, but having a larger head or fingerpiece. To the rear end
of the lever 58, is pivoted the lower end of a rod or coupling 63, whose upper end is
connected to an arm 64, projecting rearwardly from a rocking or oscillating bar or
trunnion 65, centered or supported axially by conically pointed screws 66, working in
threaded holes in a support or plate, 67, attached to the frame work of the machine...
When the screws 66, have been adjusted to properly pivot the trunnion 65, small
vertical screws 68 and 69 are turned down to set them firmly in place.
The trunnion 65, is slotted vertically for the reception of the feed-dogs 70 and 71,
which are pivoted therein by a pin 72. The dog 70 is provided with a flange 73, to
which is attached a small flat spring 74, the lower end of which bears against the
rear side of the dog 71, and tends always to throw the same towards the right of the
machine. The spring dog 71 may be formed with a slot 75, to receive a pin 76,
projecting from the dog 70, by which means the throw of the spring dog to the
right may be limited. The flange 73 is intended to limit the inovement of the
spring dog towards the left of the machine, although the pin and slot may be
used for that purpose. 77 is a projection from the trunnion to brace and support
the dogs when they are vibrated to the left by the action of the carriage driving
mechanism.
78, is a spring mounted on a post attached to a bracket beneath the machine,
and employed principally to act on the feed dogs, as hereinafter more fully
explained.
The feed-rack, composed of two toothed bars 79 and 80, arranged in the same
horizontal plane, engages with the feed dogs 70 and 71. . The dog 70, works in the
teeth of the bar 79, and the dog 71 in the teeth of the bar 80.
The double feed-rack is attached to and travels with the paper-carriage. The frame
of the paper-carriage consists of a front rod 81, and rear rod 82, and right and left

page_text: side bars or ends 83 and 84. The double rack is connected to the rear rod 82, by
means of two hinges or straps 85, which perimit of the paper-carriage being turned
up to the vertical position shown in dotted lines at Figure 4, and in full lines at
Figure 5.
To the under sides of the hinges or straps 85, and about midway of their length is
attached by screws an inverted grooved red 86, which slides or travels on a round
rail 87, secured to standards 88, projecting upward from the top ring or plate 8. The
grooved rod or slide 86, and the rail 87, support the rear side of the carriage and
guide it in a right line in its travels across the inachine.
The front rod 80 of the carriage-frame is provided with a small wheel or roller 89,
turning on a stud or axle 90, in a bifurcated bracket 91, secured in position on said
rod by a set screw 92.
93 designates a track or way upon which the wheel 89 travels, and by which the
front side of the carriage is supported, said track being attached to posts 94, pro-
jecting upwardly from the top-plate 8. As customary heretofore, the front face of
said track is provided with a scale 95, a pointer 96, therefor, being attached to the
bracket 91, on the paper-carriage. At the right hand end of the track 93, is provided
a pin 97, with which engages a de pending lug 98, adjustable by a set screw 99,
upon the front carriage rod 81. employed to limit the movement of the carriage
to the right, for the purpose of obtaining different widths of margin in the writing.
At the left hand end of the carringe rod 81, is arranged a signal trip 100, adjustable
upon said rod and adapted to actuate a signal disk 101, which is inounted on an
arm 102, projecting upwardly from a sleeve or short. tube 103, mounted to turn
on the bar 19, a spring 104, being provided to return said signal disk to its fi st
position when the trip has passed beyond a finger 10, pivoted at 100, to the disk,
which is provided with a stop 107, to prevent vibration of the finger when the carriage
is moving to the left.
108 designates a cylindrical rubber covered platten or impression roller, journaled
in the end bars 83 and 84, and provided at its right hand end with a ratchet wheel 109,
which is actuated in the direction of the arrow at Figure 3, by a push-pawl 110,
pivoted at 111 to the upwardly-extending arm 112, of a bent lever which is fulcrumed
on the front rod 81 of the carriage. The other arın 113, of said lever extends
forwardly, and is slightly curved or bowed at its free end for convenience of operation.
A collar 114 is provided to prevent said lever from inoving endwise of its fulcrum-rod
in one direction, the end bar 83 preventing its movement in the other direction. Said
bar 83, is formed with an extension 115 which projects upwardly and forwardly and
terminates in a rigid thumb-piece, 115. The extension or thumb-rest 115, is
provided with a boss 110, hollowed out for the reception of a spindle 117, which
projects beyond the end of the carriage and is there provided with a button or
head 118. The boss is cut away or notched as seen to form two stops or abutments 119
and 120, for a pin 121, projecting from the spindle at right angles.
Between the spindle and its bearing is introduced a friction packing, preferably a
coiled spring 122, to prevent accidental turning of said spindle by the vibrations of
the machine when in operation.
The push-pawl, or driver 110, is employed to turn the platen in line space direction,
and the pin 120 to regulate or govern the throw of the pawl, and hence the extent of
rotation of the platen. The platen is prevented from turning backwardly, and is held
firmly during the operation of writing by a platen-check or dog 123, on the under
side of an arm 124, pivoted or journaled on the rear carriage rod 82, said arın 124,
being confined in line with the ratchet-wheel 109, by a collar 125, on one side
and the end bar 83 on the other. The dog 123 is held to the ratchet wheel by a
spring 126, fastened at one end to the under side of the end bar 83 and bearing
at its free end against a toe-piece 127, formed upon the arin 124, and extending below
its fulcrum.
Working against or in connection with the cylindrical platen is a pressure or feed-
roller 128, journaled at its ends in hangers 129, which are hinged to the rear carriage
rod 82. A coiled spring 130, connected at one end to the hanger, and at its other

page_text: .
end to a collar 131, secured to the rod 82, operates to force said pressure roller
towards and against the platen.
1
To the free ends of the hangers 129, are attached guides 132, for directing the
paper being written on upwardly and rearwardly over the platen; an additional
guide 133, fastened to the wheel-holder of 'the front carriage rod, and about midway
of its length, being also provided for the same purpose, but particularly to act at the
central portion of the sheet widthwise.
To the hangers 129 is attached by screws a plate or strip of metal 134, which is
arranged in proximity to and tangentially of the platen and serves to assist in the
guiding of the paper around and rearwardly over the platen.
135 designates the paper table provided with hangers or straps 136 and 137,
mounted upon the rear-carriage rod 82, in a manner to permit the paper table to
vibrate or turn and the carriage to be swung up to the position shown in dotted lines
at Figure 4.
Collers 138 and 139 prevent movements of the paper table and the feed rack
endwise of the rod 82.
The hanger 137 is provided with a notch 140, which embraces a lug 141 on the
collar 139, to limit the vibrations of the paper table in both directions of its
movement.
spring 142, coiled around the rear-carriage-rod and connected at its ends to the
paper table and one of the hangers 85, is provided to return the paper-table to its
normal position relatively to the platen, while the latter is being returned to its normal
position after having been turned up to the position shown by the dotted lines at
Figure 4. The platen shaft may be provided with a knurled. hand wheel 143, to
facilitate the rotation of the platen in its bearings in the end bars. The duplex feed.
rack is guided at its rear edge in a horizontal groove in a bracket 144, screwed to the
support or plate 67. The latter extends forwardly and is formed with or has attached
to it (preferably the latter), a type guide or directrix 145, formed with a polygonal
opening 146, through which the type 43 pass at the centre of the ring 8. Said type
are each provided with a polygonal base or bed. 147, upon which the printing
character 148 is formed and also with flanges 149, which limit the movement of the
type through the guide. At the under side of the bed 147, is arranged a tapering
shank 150, which is fitted into the pivoted type-socket 44.
The type-guide is employed to secure accuracy or alignment in the printing, and by
making the opening rectangular or of other polygonal form, and using type to match,
the latter are prevented from turning in the guide while in the act of printing, and
should a type get accidentally slightly turned in its bearing or socket in the type-
carrier it will true or right itself as the base thereof passes into and comes in contact
with the flaring or beveled opening in the guide or directrix.
Not only is the type-guide with a polygonal opening and type having a polygonal
bed and flange useful for the purposes of securing perfection in the printing, but by
the same the assembling and aligning of the machine may be more expeditiously
performed:
To assemble and align the type, the type detached may be inserted in the directrix
from beneath with its shank depending. The stem key bearing a head corresponding
with such type inay then be depressed and its type carrier elevated to cause the type
socket to receive said depending shank; after which operation one or two light blows
upon the type or upon the under side of the lever may be given to secure the type in
place, or in lieu thereof, the stem-key may be struck sharply two or three times to
drive the type firmly to its seat in the socket piece.
The centre or type-guide, it will be understood, will operate to guide or direct the
type to the printing point, notwithstanding any slight inaccuracy in the fitting of
the parts, or looseness of joint due to wear from the use of the machine. In order to
avoid requiring the correction of alignment to be made by moving the type carrier
bodily, the pivoted type-holder 44, is provided, which being light moves with the
utmost ease and without, perceptibly decreasing the force of impression, or increasing
the touch of the finger keys.

page_text: 151 designates a depending bracket screwed to the top plate 8, and supporting an
axle or shaft 152 to the outer end of which is fastened securely a toothed wheel 153.
To the inner end of said shaft is attached loosely a drum or harrel 154, containing a
coiled spring 155, which is attached at one end to said drum or barrel and at the other
end to the axle or shaft 152.
A smaller toothed wheel 156, mounted on a stud 157, screwed into the bracket 151,
and having a head or fingerpiece 158, projecting exteriorly of the machine, is provided
for the purpose of turning the wheel 153, and winding and unwinding the driving
spring 155, to increase or decrease the tension of the same. The barrel is provided
with a grooved periphery to which is connected one end of a cord or other flexible
device 159, whose other end is attached to the paper carriage at the point 160, the
direction of the cord being changed by pulleys 161 and 162, over which it runs.
The wheels 153 and 156, are constructed on the principle of the "Geneva Stop"
movement, and the tension of the spring may be readily augmented or diminished by
turning them in the proper direction.
163 designates a horizontally arranged. release key, the shank of which is formed or
provided at its inner end with a notch or cut-away, to form the shoulders 164 and 165,
between which the feed dogs 70 and 71 are arranged. The release key is supported
near its outer end by a bracket 166, and near its inner end by the holder 67, at which
locality it is provided with a slot 167, through which the screw 69 passes, and by
which it is retained in working position. Between the bracket 166 and the head of
the release key is arranged a spiral spring 168, operating to force said key to the left
and hold the dogs 70 and 71 in a vertical position and in engagement with the
duplex rack.
The tension of the spring 78 may be regulated by a screw 169, mounted in a .
bracket 170 on the under side of the bed-plate, which engages with a threaded hole in
the rod 171, around which the spring is coiled loosely, its upper end pressing against
the lever 58; and its lower end resting upon a cross-pin or head at the lower end of the
rod 171. By turning the screw 169, the rod 171, is caused to travel thereupon and
the spring is compressed or elongated according to the direction of movement of the
screw.
Having described the construction of a machine embodying my invention, I shall
now proceed to explain the mode of operation of the same.
The paper to be written on is passed down between the paper table 135, and the
platen 108, which is rotated by hand to draw the sheet in between it and the pressure
or feed roller 128. This rotation is continued until the leading end of the sheet has
been carried past the printing point, or the opening in the type-guide.
To begin writing, the carriage may be drawn to the right hand side of the machine,
thereby unwinding the cord 159 from the drum 154, against the tension of the
spring 155. During this movement the feed dogs vibrate on their pivot 72, the
dog 71, bobbing freely between the teeth of the rack 80. When the pull of.
the carriage by the operator is released the dogs stand relatively to the rack in the
position illustrated at Figure 15, by reason of the action of the spring 78, and
the driving spring 155.
If the finger key 12, hearing the letter "" be depressed as represented at Figure 4,
the key-lever 19 will be vibrated on the fulcrum-post 10 and its inner arm and the
connecting rod 15, will be raised.. The lug 54 on the latter will, at the same time
raise that portion of the universal lever or wheel 53 on the side of said lug, the
opposite portion of said wheel bearing upon the diametrically opposite lug 54, as a
fulcrum, as shown by the dotted lines. As the connecting rod 15 is pushed up it
operates to lift the link or lever. 27, which throws the type-carrier 34 and type from
the full to the dotted line position indicated at Figure 7, the link 38 assisting and
guiding or directing the carrier to said position.
The type face 148, on leaving the pad or inking surface 48 (against which it and all
the other type faces normally stand) is given neaily a quarter turn and is caused to
pass through the guide and print directly upon the paper on the under side of the
platen.

page_text: When the universal ring or circular lever 53 is elevated to the dotted line position
shown and described it carries with it the vertical ro 1 57, which in turn raises the front
arm of lever 58, thereby depressing its rear arm against the tension of the spring 78,
and pulling down the link 63, rocking the trunnions 65 and carrying the feed-dogs
mounted therein rearwardly as shown by the dotted lines at Figure 4.
As the dogs
are vibrated rearwardly from the normal position shown at Figure 15, the dog 70,
partially enters the space between two teeth on the bar 79 before the dog 71 leaves
the teeth on the bar 80, as seen at Figure 16, thus providing against any feed of the
carriage while the printing is taking place, and hence avoiding any blurring of the
impression.
When the dog 70 shall have fully entered between two teeth on the bar 79, (still
holding the carriage) the dog 71, having been rocked out of line with the teeth on the
bar 80, is thrown to the right by the action of the spring 74, the distance of one tooth
as seen at Figure 17.
Upon releasing the pressure on the finger-key 12, the key-lever 19, the connecting
rod 15, the lever 27, the type-carrier 34, the link 38, the universal ring or lever 53,
the rod 57, the lever 58, the link 63 and the trunnion 65, with its dogs, all return by
gravity and under the influence of the spring 78, to their normal positions, which are
clearly shown in full lines at Figure 4. During the return of the dogs 70 and 71, the
latter enters the next space or notch to the right of the one it formerly occupied, and
immediately the former has left the bar 79, the carriage propelling spring 155 turns
the barrel 154, and partially winding the cord 159 thereon pulls or draws the carriage
toward the left of the machine against the tension of the spring 74, the distance of
one letter-space or notch. During this movement of the carriage, the dog 71 is
vibrated to the left by reason of its engagement with the bir 80, until it strikes
against the lug or abutment 73, on the dog 70, which latter now stands against the
end of the slot in the trunnion, and also against the lug 77, or at the limit of its
vibration to the left. When the dog 71 has been carried against the lug 73 on the
dog 70, the faces of the dogs will be brought in line as shown at Figure 15, and
the feed of the paper carriage to the left will be stopped or interrupted.
It will be understood of course, that the action of the parts will be same, if any
finger key other than that bearing the letter "b" be depressed. Bat in operating
those finger keys which lie in planes exterior to and tangential of the circle of con-
necting rods, it will be understood that the key levers thereof operate first upɔn the
links 16, and sub-levers 23, instead of directly upon the connecting rods 15.
While the finger keys connected with type-carriers' are being operated, the space
key 62, remains motionless, the front arm of the lever 58, working loosely in a long
slot in the upper end of the link 60. Between words the space key is operated by
depressing it in the manner of the other keys. When depressed, its lever, 61, is
thrown upwardly at its rear end, and the link 60, is caused to elevate the front end of
the lever 58, and depress its rear end against the spring 78, thus drawing down
the link 63, and effecting a vibration of the dogs 70 and 71, in the manner herein-
before described.
During the writing of a line the carriage is fed step by step to the left of the
machine. When a line has been written the carriage may be returned to the right
of the machine by the operator who, may during this return movement, or
subsequently, rotate the platen and feed the paper forward a line space to obtain
a fresh portion thereof for printing. The feeding thus of the paper may be
conveniently effected by grasping the line space lever arm 113 and the rigid
thumb-piece 115, and raising the arm 113, in a movement to close the hand. As
the arm 113, is elevated, the pawl, 110, attached to the arm 112, is moved
rearwardly against the face of a tooth on the ratchet wheel, 109, and the latter is
rotated partially.
If it be desired to make a single line space, the pin 121, on the spindle 117, is
turned down at right angles to the arm 113, thus limiting the upward movement of
said arm, and permitting the pawl to move round only one tooth of the ratchet wheel
at a time.

page_text: If it be desired to effect a double line space the pin 121 should be turned up to the
position shown at Figure 18, thus permitting of a further vibration of the lever and
pawl, and the turning of the ratchet wheel the distance of two teeth at a time.
During the rotation of the platen, the check 123 works in and out of the spaces
between teeth.
When it may be desired to feed the carriage quickly to the left, the release key 163,,
is pushed in to vibrate the dogs 70 and 71, on their pivot 72, towards the right, and
out of engagement with, and beneath the plane of the duplex-rack, whereby the.
carriage is left free to be moved rapidly towards the left of the machine. Upon
removing the pressure on the release key, the spring 168, will return the same, and
the dogs to their normal positions.
Should it be desired at any time to view the work on the under side of the platen.
or to clean the type the carriage may be turned up, as seen at Figure 4, in dotted.
lines, and at Figure 5, in full lines, the back rod 82, and the straps 85, serving as
hinges for the carriage. During the first part of the turning up of the carriage, the
paper table 135 moves with it until the table strikes against the duplex rack, or its,
hangers. Then the table remains stationary, while the rotation of the carriage is,
continued against the action of the paper table spring 142, until it has been brought
past the vertical where it will stand unattended. During this continued movement of
the carriage, the pin 141, travels towards the lower end of the slot 140.
In turning down the carriage, the pin 141 first travels back to the top of the slot.
As the descent of the carriage is continued, the pin operates to draw the paper table
along forward with the carriage, and when the latter has been returned to its first
position the paper table will stand in the position shown at Figure 4, in full lines.
The spring tends always to turn the paper-table into the position indicated by the
dotted lines at Figure 4, but when the carriage is down in working position, the pin
and slot 141 and 140, prevent the paper table from being turned further than the
position indicated by the full lines at Figure 4.
•
The signal trip 100, may be adjusted to actuate the disk 101 as the carriage travels
to the left of the machine, and thus give notice to the operator that the carriage has
arrived at the point or locality previously determined upon. When the signal trip
arrives at the arm 105, it vibrates it, and the disk 101 around its pivotal bearing on
the arm 19, as shown by the arrow at Figure 2, until the trip 100, which moves in
a right line passes by the arm 105. Immediately the arm 105 is released the
spring 104 throws the same and the disk back against the plate 8, causing a sharp
click or sound. The vibrations of the disk may be perceived by the operator, and
thus a visual signal afforded in addition to the audible one obtained by the striking of
the disk against the top-plate 8. During the return movement of the carriage, the
upper end of the pivoted arm 105 is depressed by the trip while being passed by the
same, but assumes its normal position as soon as released by the trip, by reason of
the greater weight being at the lower end of said arm.
:
The ink-pad may be made of felt, and supplied with any suitable coloring matter
or ink.
The plate 134 may be marked with a scale like that 95, on the frame, but running
in the reverse direction to faciltate the making of corrections by the operator.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a type-writing machine, the combination of a type-carrier, and two oppositely
vibrating links.
2. In a type-writing machine, the combination of a type-carrier, consisting of the
bar 34 and the oppositely arranged arms 35 and 36, with two links adapted to.vibrate
in opposite directions..
3. In a type-writing machine, the combination of a centrally arranged fulcrum-
support, a series of links 38 radiating therefrom, a concentric and exteriorly
arranged fulcrum-support, another series of links 27 radiating therefrom towards

page_text: the links 30, and a series of type-canners pivoted to Satu duplex series of radiating
links.
4. In a type-writing machine, the combination with an inking surface and a platen
above the same, of a typé-carrier and oppositely arranged links 27 and 38, adapted
to move the type from the inking surface, turn it, and present it to the platen or the
paper thereon.
5. In a type-writing machine, the combination of a type-guide or directrix, a platen,
a circular inking-pad, an intermediately arranged type-carrier, and means for moving
the type from the pad, through the guide to the platen.
6. In a type writing machine the combination of a type-guide or directrix, a type-
carrier and the oppositely vibrating links.
7. In a type-writing machine a type-carrier having a pivoted type-holder and
means to limit its vibrations in combination with a type-guide or directrix, and means
substantially as described for moving the type-carrier.
8. In a type-writing machine the combination with a type-guide or directrix, of a
type-carrier provided with a type having flanges or stops, and means substantially as
described for moving the type-carrier.
9. In a type-writing machine the combination of a guide or directrix having a
polygonal opening with a type-carrier, having a type provided with a polygonal bed or
base.
10. In a type-writing macbine the combination with a stem-key and a connecting
rod, of a key-lever having lugs or projections to confine it in position.
11. In a type-writing machine and in combination, type-carriers arranged in a circle,
connecting rods arranged in a circle, means for actuating said rods, and offsets or cross
connections of varying lengths between said actuating means and said connecting rods,
substantially as and for the purpose described.
12. In a type-writing machine the combination of type-carriers arranged in a circle,
vertical connecting rods arranged in a circle, horizontally arranged parallel key-levers,
and horizontally arranged sub-levers between some of the connecting rods and some of
the key-levers.
13. In a type-writing machine, the combination with a letter-space feeding
mechanism, of a universal-var or lever made ring-like or circular, and connecting-rods
arranged around said lever and adapted to operate the same.
14. In a type-writing machine, a circular universal bar or lever in combination with
n letter-space feeding-mechanisin, type-bars, key-levers and vertically-arranged con-
necting rods, the latter being disposed about the periphery of said universal-bar and
adapted to actuate the same at each depression of a key-lever.
15. In a type-writing machine, the combination of a circular universal-bar, the
vertical spindle 57 connecting with the hub thereof, the horizontal lever 58, connecting
with said spindle, the link or coupling 63, the letter-spacing dogs or ratchets, and a
spring for returning the moving parts."
16. In a type-writing machine, the combination with the carriage and letter space
feeding devices, of the circular universal-bar, the connecting-rods adapted to actuate
the same, the vertical spindle 57, the lever 58, the coupling 63, a returning spring, the
slotted link 60, the space-key and character keys, and connections between the latter
and the link 60 and the connecting-rods.
17. In a type-writing machine, the combination of the duplex-rack, and the dogs.70
and 71, constructed and operating in the manner described.
18. In a type-writing machine, the combination of the holder or support 67, the
trunnion 68, the dogs 70 and 71, means for vibrating the same, and the paper carriage
provided with the duplex-rack.
19. In a type-writing machine, the combination with the duplex-rack, of the
dogs 70 and 71, mounted in the trunnion 65, and the spring actuated release-key.
20. In a type-writing machine, the combination of the paper-carriage, the front
track or way 93, the rear track or rail 87, the slide or grooved rod 86, on the paper-
carriage, and the duplex-feed-rack; the carriage and the rack being connected by a
hinged-joint.

page_text: 21. In a type-writing machine, the combination of a paper-carriage, a hinged paper-
table, and a spring 142.
22. In a type-writing machine, the combination of a paper-carriage having
a hinge rail provided with a pin, and a hinged paper-table, having a slot for said
pin.
23. In a type-writing machine, in combination with the line-space lever, a
line-space regulator consisting of a perforated and slotted boss 116, a spindle 117, a
head 118, and a pin 121.
24. In a type-writing machine, in combination with the line-space lever, a line-space
regulator, consisting of a spindle mounted to turn in a bearing and provided with a
pin, a head, and a friction-packing.
25. In a type-writing machine, a paper-carriage composed of the longitudinal
rods 81 and 82, and transverse bars 83 and 84, the platen having a circular rack, the
rigid thumb-piece 115, extending outwardly from the bar 83, and beyond the bar 81,
and the line-space lever having a handle-portion also extending outwardly and in
proximity to the thumb-piece.
26. In a type-writing inachine, the combination with the paper-carriage provided
with a trip, of the vibratory signal-disk and a spring for returning it to its normal
position.
27. In a type-writing machine, the combination with the carriage of a driving-
mechanism, consisting of a cord, a spring-actuated drum, and the toothed wheels 153
and 156, for regulating the tension of said spring.
28. In a type-writing machine the combination of a platen, a ratchet wheel, a line-
space-lever carrying a pivoted pawl, a pivoted arm carrying a platen-check and
provided with a heel, a spring acting upon said heel below the pivot of said arm to
hold the platen-check normally in engagement with the ratchet-wheel.
DAY, DAVIES & HUNT,
321, High Holborn, London, W.C.,
Agents for the Applicants.