Improvements in Type-writers.
Year: 1892

page_text: · Date of Application, 9th Aug., 1892-Accepted, 17th Sept., 1892
CUMI LEIM
Improvements in Type-writers.
A communication from abroad by Messrs. WYCKOFF, SEAMANS, AND BENEDICT,
of 327, Broadway, New York City, New York, United States of America,
Manufacturers.
I, JOHN CORRY FELL, of the firm of Fell and Wilding, of 1 Queen Victoria
Street, in the City of London, Patent Agent, do hereby declare the nature of this
invention and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement :-
This invention has for its main object to provide a carriage escapement
mechanism capable of adjustment to release the carriage either before or after the
impression of the type, as may be desired.
An escapement mechanism arranged to release the carriage after the type has
nade its impression is now known as the "old" or "natural" feed, and an escape-
ment mechanism arranged to release the carriage just before the type makes its
impression is now known as the " new or reverse" feed.
25
66
The old or natural feed is not quick enough for expert or very rapid writers,
while the new or reverse feed is too quick for inexpert or slow writers.
The natural feed does not afford sufficient time for the carriage to start, travel
and stop if the type be actuated rapidly, and for this reason experts are unable to
produce a high quality of work. In such a case the spacing between words and
letters will be uneven and irregular and frequently two characters will be printed
either coincidently or with one overlapping the other.
The reverse feed cannot be employed by a slow writer for the reason that
if the finger be pressing upon the actuating key at the moment the type
strikes, which is nearly always the case with a slow writer, the impression will
be blurred or smutted since at this time the carriage is making its letter-space
movement.
It is therefore desirable to provide an escapement mechanism which may be
adjusted to give either the natural or the reverse feed in accordance with the
desires or ability of the operator; and in this lies the gist of the main feature of
this invention.
This invention consists further in certain combinations and arrangements of
devices and in certain details of construction, all of which will be hereinafter more
fully described and particularly pointed out in the appended claims.
In the accompanying drawings,
Figure 1 is a central vertical section of so much of a Remington type-writing
machine as is necessary to illustrate the improvements, the feeding mechanism being
arranged to give the old or natural feed to the carriage, and the spacing-dogs being
shown in their abnormal positions.
Figure 2 is a plan view of the feeding devices with the parts in the positions
represented at Figure 1, the feed-rack being shown in dotted lines.
Figure 3 is a view similar to Figure 2 with the parts in their normal positions.
Figure 4 is a view similar to Figure 1 with the feeding devices arranged to give
the reverse feed, the parts being shown in their normal positions.
Figure 5 is a top view of the feeding mechanism shown at Figure 4 with the
parts in their normal positions.
Figure 6 is a view similar to Figure 5 with the parts shown in their normal
positions.
Figure 7 is a rear elevation of the mechanism shown at Figure 4 and with the
parts arranged in the positions shown at Figure 4.
Figure 8 is a central vertical section of a portion of a type-writing machine

page_text: showing my improvements applied to a construction of feeding mechanism con-
sisting of two racks and one spacing-dog.
Figure 9 is a rear elevation of the construction and arrangement shown at
Figure 8, the devices in both said views being arranged to afford the reverse
feed.
Figure 10 is a view similar to Figure 9 with the parts arranged to give the
natural feed.
Figure 11 is a plan view of the construction illustrated at Figures 8, 9 and 10.
Figure 12 is a central vertical section of a type-writing machine, the feed
mechanism of which is made in accordance with the plan. shown and described in
the U.S. Letters Patent granted December 29, 1891, No. 465,905, and having
applied thereto the present improvements, the spacing-dogs being arranged to
produce the reverse feed.
Figure 13 is a central vertical section of a Remington No. 5 machine with
the improvements applied thereto, the feed-rack being arranged to give the natural
feed.
Figure 14 is a rear elevation of the same.
Figure 15 is a top plan view of the same, and
Figure 16 is a bottom plan view of the dog and dog-holder.
Referring to Figures 1 to 7 inclusive, 1 designates the type-ring or top-plate,
2 the paper-carriage which is provided as usual with a spring-drum or other power
driving mechanism (not shown), 3 a. hinge-and-guide-rail for said paper-carriage,
4. a hinged rack-bar-frame connected to said rail 3, and 5 a feed-rack, with which
co-operate two dogs 6 and 7. The shank 8 of the dog 6 is pivoted at 9 in a dog-
holder 10 formed integral with a spacing-rocker 11, which is supported at its ends
by pivots or journals 12. The shank 13 of the dog 7 is pivoted at 14 in the dog-
holder and is provided with a spring 15, there being also a spring 16 for the shank
of the dog 6. The dog 6 is preferably jointed to the shank 8 as indicated at 17 to
enable the carriage to be returned noiselessly as heretofore.
Formed integral with the dog-holder and spacing-rocker is an arm or upright 18,
at the upper end of which is formed or provided a stop 19 for the spacing-dogs in
their movements towards the left. On said arm or upright is mounted, as usual,
an adjustable cushioned stop 20 for the dog 7 in its movement towards the right,
and on said arm or upright is also mounted an adjustable stop. 21 to limit the
forward vibration of the dog-holder and the dogs carried thereby.
Pivoted at 22 to the shank of the dog 7 is a lever 23 which is split at its upper
end to form two stops 24 and 25 on the right hand side of the dogs, the stop 25
being bent laterally to extend out beyond the plane of the stop 24.
The inner left
hand end of the lever is provided with a cam 26 which is. adapted to co-act with
the beveled edge or corner 27 of the upper end of the arm or upright 18 contiguous
to the stop 19. The stops 24 and 25 are both adapted to co-operate with the dog 6
but at different times, as will be presently explained.
The spacing rocker is provided, as usual with a forwardly-extending arm 28 to
which is connected a cross-har 29 provided at each end with a link 30 which
.connects at its lower end with one end. of a universal-bar 31 that underlies all of
the key-levers 32 of the machine. The spacing-rocker is provided with a
returning spring 33, and with a stop 34 to limit the return of the spacing-rocker
and its appendages, said stop being arranged to abut against the underside of a
portion of the frame-work 35 depending from the top-plate, said frame-work serving
as an abutment for the stop 21 carried by the arm 18.
When
When the stop 25 is moved down, by vibrating the lever 23, back of the base
of the dog 6, it serves as a check to the vibration of said dog towards the right under
the influence of its spring 16 when freed from engagement with the rack.
the stop 24 is turned up to the position shown at Figure 4 of the drawings, it
serves to restrain the movement of the dog 6 towards the right, and also serves as
a carrier for said dog during the movement of the dog 7 towards the left under the
influence of the carriage driving spring.

page_text: The cam or arm 26 on the adjusting lever 23, serves to wedge or draw the dog 7
over against the stop 19, when the outer end of the lever is pulled up, and lock
said dog rigidly relatively to the dog 6 and prevent any vibration of said dog about
its pivot 14.
Referring to Figures 1, 2 and 3, it will be observed that the adjusting lever has
been thrown into a position such as to cause the cam to draw or lock the dog 7
firmly against its stop 19, and that the stop 25 has been swung down to co-operate.
with the dog 6, while the stop 24 has been lowered to a position where it cannot at
this time co-act with said dog 6. In this position of the parts the arrangement is
such that the old or natural feed takes place and the dog 6, in the normal position
of the feed-mechanism stands in engagement with the feed-rack. The operation
will be understood to be as follows:
When a key-lever is depressed, the dog 6 is rocked out of engagement with the
rack and the dog 7 carried over into engagement therewith as shown at Figures I
and 2. Immediately the dog 6 leaves the rack, it is vibrated towards the right by its
spring 16, until it strikes against the bent stop 25 and is arrested thereby. At this time
there is no feed of the carriage because the relatively rigid dog stands in engagement
with the feed-rack, and while the carriage is thus held the type makes its impression.
As soon as the finger-key is released the spacing-rocker returns the dog-holder.
and the dogs to their normal positions, the rigid dog 7 leaving the rack, and the
vibratory dog 6 engaging the same one notch to the right of that which it
previously occupied. Immediately the dog 6 is carried over into the said notch,
the driving spring of the carriage is free to operate and by reason of its superior
power carries the dog 6 and the paper-carriage towards the left until said dog
strikes against and is arrested by the fixed stop 19. This mode of feeding the
carriage will be recognized as that heretofore eniployed in the Remington machine.
The mechanism however is somewhat different.
Referring to Figures 4, 5, 6 and 7, it will be observed that the adjusting lever
has been moved to release or unlock the dog 7 and to bring the stop 24 into a
position where it may co-operate with the dog 6. In this arrangement of the parts,
the feed mechanisin is adapted to release the carriage just before the striking of
the type and hence afford the reverse feed. Normally the dog 6 stands in engage-
ment with the rack and against the stop 19, due to the pull of the carriage driving
power. At this time the dog 7 stands out of the rack and in line with the next
succeeding notch of the rack on the right of the one occupied by the dog 6. On
depressing the key-lever the dog 6 is thrown forward out of engagement with the
rack, and the dog 7 into engagement therewith, the dog 6 on leaving the rack
vibrating to the right and striking against the stop 24. Imunediately the dog 7
engages the rack, the carriage driving power is free to act, and the dog 7 is
vibrated towards the left, and through the stop 24 carries with it the dog 6 until
the same moves over into contact with the stop 19, thus arresting the paper-
carriage. The movements of the parts are so timed that the dog 7 is carried into
engagement with the feed-rack and the carriage starts to move just before the type
makes its impression. On releasing the finger-key the spacing-rocker starts to
return and the dog 7 is carried out of the rack, and the dog 6 into the same and
into the notch just occupied by the dog 7. As at this time both said dogs are at
the limit of their throw to the left, there will be no further feed of the carriage.
The dog 6 is enabled to enter the notch which the dog 7 leaves by reason of the
fact that the stop 25 operates to carry the dog 6 towards the left with and in line
with the dog 7 after the dog 6 has been rocked forward to escape the rack. When
the dog 7 leaves the rack on its return movement, its spring operates to throw it
towards the right and against the stop 20.
Referring to Figures 8, 9, 10 and 11, it will be observed that there are two
feed-racks 5 and 6, and one spacing-dog 7*. In this construction the carriage is
provided with two guide-rails, which are embraced by a yoke-piece 36, which at
its ends is provided with rearwardly and downwardly extending arms or supports 37.
Both racks are loosely mounted and capable of end wise movements. The rack 5

page_text: is provided with two screws 38, the shanks or-bodies of which play in longitudinal
slots 39 formed in the yoke-piece, the threaded ends of the screws being inserted
into threaded holes in the rack 5, and the heads of the screws being arranged in
front of the yoke-piece. By this means the rack is supported by the yoke-piece
and is capable of moving in a longitudinal direction. 40 designates a spring, one
end of which is attached to a hook or eye on the rack 5, and the other end of
which is attached to a similar device on the left-hand arm 37, the tension of said
spring acting to normally pull the rack towards the left and the bodies of the
screws 38 to the left-hand ends of the slots 39. The rack 6, is also provided with
limiting screws or pins 41, the bodies of which play in longitudinal slots 42 formed
in the depending portions of the arms 37, and by this construction the said rack is
connected to the yoke-piece and is adapted to move endwise in the manner of the
rack 5. A spring 43 is connected at one end to the rack 6ª, and at its other end to
the left hand arm or support 37, and its tension is such as to pull said rack towards
the left. This rack is provided with a stop 44 and the rack 5 is provided with a
similar stop 45, the said stop 44 being, adjustable and adapted to limit the spacing
movements of the carriage by the contact therewith of the left hand arm or
support 37, while the adjustable stop 45 limits the shifting movement of the rack
towards the left.
Pivoted at 48 on the rack is a lever 23" provided with a cam or wedge 50, a
lug 51, and a stop or projection 52, the lug being arranged to contact at certain
times with a pin 53 on said rack to limit the vibration of said lever as indicated at
Figure 9. The cam or arm 50 is provided to engage with the arm or support 37
when the lever is turned towards the left to enable the rack 5 to be forced or
drawn towards the right, against the tension of its spring, a letter space distance,
as indicated at Figure 10, the end of the cam or arm 50 being preferably curved,
and the side of the support 37 being preferably slightly depressed, as indicated.
The lug 51 is adapted at certain times to serve the purpose of a stop for the
rack 6, which is provided with a forwardly-projecting pin 54.
By loosely mounting both racks and providing both with driving springs, and
by the use of the lever 23" constructed as described, in connection with the pins on
both said racks, either the natural or reverse feed may be obtained at pleasure.
Referring to Figures 8 and 9, the parts are arranged to afford the reverse feed.
In this arrangement when the spacing-dog is vibrated forward into the front
rack 5, the carriage is moved towards the left a letter space distance, and simul-
taneously the rear rack is moved a like distance in the same direction by its
spring. This movement of the carriage takes place owing to the fact that in this
adjustment of the parts. the screws 38 stand normally at the left hand ends of the
slots 39. Hence as soon as the spacing-dog entirely leaves the rear rack, which is
normally the restraining rack of the carriage, and passes into engagement with the
front rack, the carriage must move under the power of the carriage driving spring
a letter space distance afforded by the slots 39, the rack 5 of course remaining at
rest during the movement of the carriage.
The instant the dog leaves the back rack, its spring 43 propels it towards the
left until the pin 54 strikes against the lug 51 on the switch-lever, and as said
lug is stationary at this time owing to the detention of the rack 5 on which it is
mounted, at the completion of the feed of the carriage, the screws or pins 41 will
stand at the right hand ends of the slots 42. The spring 43 first causes the pins
or screws 41 to travel towards the left hand ends of the slots until the lug 51 is
met by the pin 5+, and then the driving power of the carriage causes the yoke piece
to move while the screws 41 are stationary, and hence the right hand ends of the
slots will move towards the screws, so that after the feed of the carriage, the
spacing-dog stands in engagement with the front rack, and the back rack having
moved a letter space distance stands restrained by the lug 51 and with its screws 41
at the right hand ends of the slots 42. As in the case first referred to, the move-
ments of the type are so timed that the carriage is released for its feeding movement
just before the types strike the platen.

page_text: When the finger-key is released and the spacing dog permitted to rock back into
the rear rack and into a notch adjacent to the one it first occupied, the spring 40,
of the rack 5, which has been slightly elongated by the feed of the carriage during
the detention of said rack, operates to propel said rack towards the left a
letter-space distance, and the screws 38 travel from the right hand ends of the
slots 39 to the left hand ends thereof. During said movement of said rack there is
of course no feed of the carriage owing to the engagement of the back rack by the
spacing-dog, which engagement operates to restrain the movement of the yoke-piece
and the carriage to which it is connected on account of the stop 44, on said rack
standing at this time as an obstruction to the arm 37.
When it may be desired to have the carriage space in accordance with the old
style or natural feed the lever 23", may be turned towards the left until its cam
or arm 50 engages with the support 37 and causes the front rack to be wedged and
locked against any movement relatively to the yoke-piece or to the back rack by
its spring 40. This movement of the shifting lever to transform the rack 5 into a
rigid or immovable rack is limited by the pin 53 which the arm carrying the
lug 51 contacts with. The said pin 53 operates to limit the movement of the lever
in the opposite direction through the projection 52 on said lever and serves also as
a means for determining the proper position of the lug 51 relatively to the pin 54
when the parts are to be set for the reverse feed.
The rack 5 having been locked as described and as indicated at Figure 10,
when the spacing-dog is vibrated over into said rack, the rear rack propelled
forward by its spring a letter space distance, and at this time, during which the
type makes its impression, there is no feed of the carriage. When the finger-key
is released and the spacing-dog permitted to return into engagement with the rear.
rack, the carriage is enabled to move a letter space distance.. It will be observed
that in adjusting the lever for the natural feed, the lug 51 is turned down into a
position such that there is no co-operation with it of the pin 54 on the rear rack.
It will be seen from the foregoing that the machine shown at Figures 8, 9, 10
and 11 is likewise constructed to afford either the natural or the reverse feed as
may be desired.
Referring to Figure 12 of the drawings, it will be observed that the spacing-dogs
and their actuating mechanism are constructed in accordance with the device
shown at Figures 1 to 7 inclusive, while the paper carriage and the devices inter-
mediate the same and the spacing dogs are made in accordance with the plan shown
and described in the aforesaid United States Letters Patent granted December 29,
1891. In this machine the spacing-dogs co-operate directly with a circular rack
or ratchet wheel instead of a straight rack or ratchet bar. Said circular rack or
ratchet wheel 5%, is mounted upon a shaft or arbor 55, at the inner end of which is
a pinion 56 which meshes with a tooth-bar 57 connected to the power-driven paper-
carriage. In this machine, the operation of the spacing dogs being substantially
the same as that hereinbefore described with reference to Figures 1 to 7 inclusive,
need not be further set forth in detail. It will be apparent that by shifting the
lever 23, either the reverse or natural feed may be obtained.
Referring now to Figures 13 to 16 inclusive, those skilled in the art will recognize
the machine illustrated as that commonly designated as the "Remington No. 5, in
which the rack is carried by the spacing-rocker in the frame-work of the machine
and the spacing-dogs are carried by a hinged frame connected to the power-driven
paper-carriage.
The dog-holder 10b, is preferably pivoted at 58 in an arm or support 59 connected
to the paper-carriage, and in grooves in said dog-holder are mounted the spacing-
dogs 66, and 7, preferably having a common pivot 60 at the upper end of the dog-
holder. The dog 6b is perforated for the passage of a screw 61 whose threaded
end enters a threaded hole in the dog-holder, and surrounding said screw between
the dog-holder and the back of the dog is a small spiral spring 62 whose tendency.
is to throw the lower end of the dog outwardly towards a leather or similar stop 63
arranged against the head of the screw 61. The dog 7b is similarly perforated for

page_text: the passage of a like screw 64 whose threaded end is also inserted into a tapped
hole in the dog-holder and whose shank or body is provided with a similar spring 65
adapted to vibrate the dog outwardly against a cushioned stop 66 lying against the
head of the screw 64.
The rear dog 6b is formed with an extension 67 above its pivot 60, and the front
dog 7 is likewise formed with an extension 68 formed above its pivot 60, the former
being beveled or chamfered at one corner as shown at 69, and the latter being
beveled or chamfered at one side or corner as shown at 70.
Pivoted at 71 is a lever 23', the rounded end 72 of which is adapted to co-act
with either the beveled or cam face 69 or that 70, to lock or hold either the rear
dog or the front dog rigid or immovable against its respective spring. The
movements of said lever are limited by pins 73 projecting up from the dog-holder,
to which device the lever is pivoted.
As shown in the several views, the lever is turned to a position to effect the
locking of the front dog, and at this time the mechanism is adjusted to produce the
natural feed. When the key-lever is operated, the feed-rack is vibrated from
the rear-dog forward to be engaged by the front dog, which being rigid at this time
prevents any feed of the carriage taking place. As the rack leaves the rear dog,
said dog, by its spring, is thrown towards the left against its stop the distance of
one letter space. The type being struck and the finger-key having been released,
the feed-rack returns into engagement with the rear dog, and the driving power of
the carriage, pulling in the direction of the arrow, moves the same a letter space
distance to the left until the dog has been straightened up and has compressed its
spring and come into contact with its back stop, which will be hereinafter
referred to.
When it may be desired to obtain the reverse feed, the switch-lever 23b is swung
over to the dotted position shown at Figure 15 so that its operating end may act
upon the cam 69 and wedge or force back and lock the rear dog against the
resiliency of its spring. By thus shifting the lever the front dog is unlocked and is
free to be acted upon by its spring. Now, when the key-lever is depressed and the
rack is moved forward to engage the front dog, the carriage starts to move at once
under the influence of its driving power and continues to move until the front dog
is straightened up, or in other words, until the dog-holder with its stop has moved
up parallel with the dog, the dog of course being prevented from movement at its
beveled operating end by reason of its engagement with the relatively fixed feed-
rack. As before, the type is arranged to strike the paper immediately after the
carriage has been released for a letter space movement. Immediately the finger-
key is released, the rack is vibrated rearwardly into engagement with the now fixed
or locked rear dog, and the carriage is held arrested. As soon as the rack is rocked
back into the rear dog, the spring of the front vibratory dog operates to throw its
beveled, working face to the left a distance of one notch or letter space against its
front cushioned stop, the dog-holder at this time of course remaining stationary,
owing to the engagement of the rear dog with the rack.
"
74 designates a back stop for the front dog, and 75 a back stop for the rear dog.
These stops are preferably formed integral with a segmental plate 76 arranged to
swing on a pivot 77 on the underside of the dog-holder and on the right hand side
of the dogs. These stops may however be made stationary or as fixtures, or formed
integral with the dog-holder; but I prefer this form of stops for the reason that by
the use of the same I am enabled to readily adjust the "lead of either dog so as
to ensure its ready entrance into the notches of the feed-rack. As is known, if the
dogs be set or wear so that their working faces stand in the same plane transversely
of the rack, there is liability of the detaining dog catching against the side of a
tooth on the rack when the rack is moved over to engage with the detaining dog.
Thus it is desirable to set that dog which is to act as the spacing-dog, slightly in
advance of the detaining dog so that the latter cannot fail to properly enter the
notch of the feed-rack when the latter is moved from the spacing-dog over to the
detaining dog.

page_text: '
Of course this improvement is applicable to machines in which the rack is upon
the carriage and the dogs are in the frame work. The segmental plate bearing the
stops 74 and 75 may, after adjustment, be set by a screw, and for this reason the pivot
or center, on which it may turn to effect the change of lead of either dog, may be
made as a screw. But in the extension of this idea as carried out by me, the
segmental plate is locked in its shifted position by the shifting lever 23b, through
the detaining dog. An inspection of Figure 16 will show that the working face of
the rear dog is set to give the lead, this dog at this time being the spacing-dog
and the front dog the detaining dog, which as will be observed by Figure 15, is
held in a locked or rigid position by the adjusting lever.
It will be further observed that the arrangement is such that when one dog is
locked or fixed by said lever, the other dog is automatically given the lead. This
is effected by the lower end of the dog which is being locked, vibrating the
segmental plate as a lever, causing its opposite side or arm to throw forward slightly
that dog which is to operate as the spacing-dog. Thus it will be seen by examining
Figures 15 and 16 that the adjusting lever having been switched to lock the front
dog, the latter has slightly rocked the segmental plate and caused it to slightly
project and give the lead to the back dog. I do not, however, wish to be limited to
the shifting of the lead through the movements of the dogs, as it will be apparent
that this may be effected by the plate alone or by equivalent stops or bases for the
dogs. Nor do I wish to be limited to adjusting the dogs alone, since in machines of
the character illustrated at Figure 8, the racks may be adjusted to give the
lead.
Of course numerous changes in detail construction and arrangement may be made
without departing from the gist of my improvement relating to the reversibility of
the feed. Having been the first to construct a type-writing machine in which the
carriage feed mechanism is adapted to be adjusted to afford either the reverse or
the natural feed at will, I desire to cover broadly this feature of improvement.
The feed mechanism of the paper-carriage may be said to consist essentially
of three members, viz., either two dogs and one rack, or two racks and one
dog, one arrangement being the well-known equivalent of the other. Where two
dogs are associated together to co-operate with a rack. they each have an
independent to and fro movement, and means are provided to restrain the movement
of one of said dogs when it may be desired to produce the natural feed, and when
two racks are associated together to co-operate with a dog, they each have an
independent to and fro movement, and means are provided to restrain the move-
ment of one of said racks, when it may be desired to produce the natural feed.
Thus I have in either case three members, two of which are associated and
independently reciprocatory to co-operate with the third, and one of which two
Either member of the
may be locked to change the feed from reverse to natural.
associated two may, by the adjustment provided, be made either the carriage
spacing member or the detaining member, according to the kind of feed desired.
At Figures 1, 2 and 3, the dog 6 is the spacing member, and the dog 7 the detaining
member. At Figures 4, 5, 6 and 7, the dog 6 is the detaining member, and the
dog 7 the spacing member. At Figures 8, 9 and 11 the rack 5 is the spacing
member, and the rack 6" the detaining member. At Figure 10, the rack 5 is the
detaining member, and the rack 6 the spacing member. Figure 12 corresponds
with Figure 4. At Figures 13, 14, 15 and 16, the dog, 6b, is the detaining
member, and the dog 7, the spacing member. When the lever 23 is shifted
as indicated by the dotted lines at Figure 15, the functions of the dogs are
reversed.
Having now particularly described and ascertained the nature of the 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 with a paper-carriage, of a

page_text: feed mechanism constructed and arranged to afford either the natural or the
reverse feed.
2. In a type-writing machine, the combination with a power driven paper-
carriage, of a feed mechanism adjustable to release the carriage either before or
after the impression, at the will of the operator.
3. In a type-writing machine, the combination with a power driven paper-
carriage, of a feed-mechanism having two reciprocatory members, one of which
may be locked or held rigidly relatively to the other to co-operate with a third
member of the feed mechanism substantially in the manner and for the purposes set
forth.
4. In a type-writing machine, the combination with a power driven paper-
carriage, of a feed-mechanism consisting essentially of three members, two of
which are associated together to alternately co-operate with the third, and
mean's substantially as described for locking or holding one of the said two
associated members.
5. In a type-writing machine, the combination with a power driven paper-
carriage, of a feed-mechanism consisting essentially of three members, two of which
are of a reciprocatory character independently movable and adapted to co-operate
with the third member, and an adjustable device for locking or restraining one of
said two reciprocatory associated members for the purpose of obtaining either the
natural or the reverse feed.
6. In a type-writing machine, the combination of a power driven paper-
carriage, of a feed mechanism consisting essentially of three members, two of
which are associated and independently reciprocatory, and means substantially
such as set forth for locking or holding one of said associated reciprocatory
members.
7. In a type-writing machine, the combination with a power driven paper-
carriage, of a feed-mechanism consisting essentially of three members, two of which
are associated and independently reciprocatory, and a switch-lever constructed to
lock or hold one of said associated independently reciprocatory members against
movement relatively to the other.
8. In a type-writing machine, the combination with a power driven paper-
carriage, of a feed mechanism substantially such as described, comprising two
associated members, and means for adjusting said members so that either one may
be made the spacing member and the other the detaining member, according to the
kind of feed desired.
9. In a type-writing machine, the combination with a power-driven paper
carriage, of a feed-rack, a dog-holder, a pair of pivotally-mounted spring-actuated
dogs, and a device for locking one of said dogs against movement about its
pivot.
10. In a type-writing machine, the combination with a power driven paper-
carriage, of a feed-rack, a dog-holder, a pair of pivotally-mounted spring-actuated
dogs, and a lever mounted upon one of said dogs and constructed to engage with
the dog-holder to lock said dog against movement about its pivot.
11. In a type-writing machine, the combination with a power-driven paper-
carriage, of a feed-rack, a dog-holder, a pair of pivotally-mounted spring-actuated
dogs, and a lever mounted upon one of said dogs and constructed to engage
with the dog-holder to lock said dog against movement about its pivot and
provided with a stop to limit the vibratory movement of the remaining dog about
its pivot.
12. In a type-writing machine, the combination with a power driven paper-
carriage, of a feed-rack, a dog-holder, a pair of pivotally-mounted spring-actuated
dogs, and a lever mounted upon one of said dogs and adapted to lock the same
against movement about its pivot and provided with two stops on the right of the
re naining dog.
13. In a type-writing machine, the combination with a paper-carriage, of a

page_text: feed-mechanism comprising essentially three members, two of which are associated
together to act upon the third, and means whereby the lead or precedence of either
of said associated members may be transferred to the other.
14. In a type-writing machine, the combination with a power driven paper-
carriage, of a feed mechanism constructed and arranged to afford either the natural
or the reverse feed and comprising a rack and a pair of dogs, and means for
adjusting the lead or precedence of either of said dogs, according to the character
of the feed to which the mechanism is adjusted.
15. In a type-writing machine, the combination with a power driven paper-
carriage, of a feed-rack, a pair of pivotally-mounted spring-actuated dogs, and a
stop or base for each of said dogs, said stops or bases being made integral with each
other.
16. In a type-writing machine, the combination with a power-driven paper-
carriage, of a feed-rack, a pair of pivotally-mounted spring actuated dogs, and a
pivotally mounted plate adapted to form a stop or base for each of said dogs and to.
adjust the lead of either of the same.
17. In a type-writing machine, the combination of a power driven paper-
carriage, a feed-rack, a dog-holder, a pair of pivotally-mounted spring-actuated
dogs, a movable plate adapted to afford a stop for each of said dogs, and means
for locking either of said dogs against movement about its pivot and simultaneously
through said plate give the lead or precedence to the other free dog.
Dated this 9th day of Auơust 1892.
FELL & WILDING,
1, Queen Victoria Street, London, E.C., Agents for the Applicant.