in Type Writing Machines
Year: 1887

page_text: I, WILLIAM WARRINGTON EVANS of the city of Washington, District of Columbia
and United States of America, Dentist 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 relates to certain new and useful improvements in Type Writing
Machines as will be hereinafter explained.
.
In the accompanying drawings Fig. 1 is a plan view of my improved type-writing
machine. Fig. 2 is a plan view of the carriage with the top plate removed and a
portion of its bottom plate broken away. Fig. 3 is an inverted plan view of the
upper portion of the Carriage, showing the escapement mechanism. Fig. 4 is a
sectional elevation on the line 4-4 of Fig. 2. Fig. 5 is a transverse elevation on the
line 5-5 of Fig. 1. Fig. 6 is a transverse elevation on the line 6-6 of Fig. 1, and on
the line 6-6 passing through the fixed portions of the machine in Fig. 1, the carriage
being at its starting point. Fig. 7 is a sectional elevation on the line 7-7 of Fig. 8.
Fig. shows a portion of the carriage provided with the key lever in Fig. 7. Fig. 9
shows another method of connecting the type form with the key lever. Fig. 10 shows
a modified form of Escapement. Figs. 11 and 11 are details of Fig. 10. Fig. 12 is a
plan view with the carriage removed and shows the indicator. Fig. 13 is a sectional
elevation showing the carriage in position for printing and the indicator retracted,
the movement of the indicator produced by raising the carriage being indicated in
dotted lines. Fig. 14 is a detail representing the index plate. Figs. 15, 16, and 17,
illustrate the form and construction of the type plate and types. Figs. 18 and 19
show the devices for rotating the paper roller. Figs. 20 and 21 a special form of top
plate for the carriage.
Similar letters indicate corresponding parts throughout the several views.
A, represents a board upon which are secured end pieces, A', and a, a¹, are side
pieces, forming when secured to the end pieces, a rigid rectangular frame within, and
upon which, the various parts of the apparatus are mounted; a², is a prop.
A shaft, A³, carries the paper roller, A³, at one end of which is secured a small
bevel gear wheel, a³, meshing with a similar wheel, a, carried upon a shaft, B,
mounted in suitable bearings attached to the end piece A', and transverse to the axis
of the roller, A. The shaft, B, carries a ratchet, b, at its outer end which is acted
upon by a pawl, depending from the carriage.
A second and smaller roller B', is mounted upon extensions, 61, from an axis, B',
suitably journaled in the end pieces, A', and arranged to bring the roller, B', parallel
with and near the upper portion of the main roller A³, against which it is held by

page_text: suitable springs, 62, upon the ends of said axis, B2, where they are adjustably secured
by collars b. A bandle, B³, extends transversely from the axis, B³.
A strip, C, secured at each end of the frame extends along the top of roller, A³,
and constitutes the printing platen, and a shield, C, provided with a graduated scale
is placed over and moves with the smaller roller to insure the paper taking the desired
course, which is under the larger roller, up between both rollers, and then back over
the printing surface.
.
A bar, (, formed with a continuous rack at one side and a continuous
ratchet at the other, the top and bottom edges, or surfaces being smooth
and plain, is journaled in the end pieces of the frames and the carriage
is mounted directly thereon being supported by bearings, C³, which rest upon
the smooth surfaces of the bar, which being angular does not turn within the
aforesaid bearings but itself serves as a hinge for the carriage. The bar is further
provided with a graduated scale corresponding to that on the paper shield, and in
connection with a light metallic pointer b, pivoted to the under side of the
bearings, C³, serves to indicate the position of the printing opening Z, when the
carriage is raised or thrown back for inspection of the work; during printing the
pointer is drawn back from the printing surface and supported upon a guide rod, 68,
fixed parallel with the paper roller. A box spring, C₁, secured to the carriage is
provided with an annular rack meshing with that on the bar, C, or spiral C³, and
being released step by step, imparts the desired intermittent motion thereto.
The carriage consists of a light metallic frame, D, formed in two parts hinged at
the upper end at d, and provided with suitable catch, d', at the lower end. Within
this frame is placed the bottom plate, 1), which carries the inking pad, D2, and a
section of circular track, D³. The top plate, E, which may be flat or corrugated aз
shown in Figs. 20 and 21, being fixed in the upper and hinged portion of the frame,
carries the index plate, F, and plunger, G. The plate D', is preferably of wood,
celluloid, vulcanite, or similar comparatively light substance, the metallic frame in
connection with the top plate, E, imparting the strength necessary to support the
actively moving parts.
At the upper side of the carriage is mounted a bifurcated lever, G, which is arranged
to have both lateral and vertical movement and is provided at its point of support
with a broad flat bearing or hinge g, said hinge being supported upon a pivot pin, G¹,
which being provided with adjustable bearings, 91, 92, passing through the upper
surface of the carriage, or through a boss or extension formed thereon, can readily be
kept free from undesired lateral motion.
The bifurcated lever, G, is provided with a freely moving telescopic extension, G²,
carrying pivoted key K, formed with a cup-shaped projection, g³. The extension, G²,
is formed of two small tubes and united by a thin sheet of metal, 9', and adapted to
slide freely upon the arms of the lever, G. The telescopic piece may however consist
of a single rod, h, although two may be used if desired, said rod passing freely through
a guide block, f, secured upon the extremities of the bifurcated lever, G, the rod or
rods passing through the guide blocks, f, and into a runner or cross-head, which
moves freely between the bifurcations of the levers, G, avoiding double friction on the
frame,, and decreasing to almost nothing the visual obstruction by the key lever of
the letters on the index plate.
The types are forced through the printing opening 2, in the lower plate, D', and
upon the paper on the printing surface, C, by a plunger, H, which passes upward
through the top plate E, and is pivotally attached to a curved, hinged, frame, h, and
normally held above the type form by a spring, h². The frame, ', lies in the path of
the telescopic portion of the key lever or the under side of the guide block f, and to
equalize the strain upon it may be provided with lateral extensions, A³, which rest
upon vertical pins *, that extend downward to the levers by which the spacing
mechanism is operated.
At the lower portion of the carriage is fixed an index plate F, the surface of which
is provided with semispherical projecting letter stops, i, in the field of movement of
the key, the cupped under portion of which g³, may be easily and quickly placed upon the

page_text: desired one.
The plate, F, is formed of a single piece of transparent material, such as
glass or celluloid which can then be secured, or hinged as at I, in Fig. 14, to the top
plate, E. Where the plate is counter-sunk as in Figs. 7 and 14, a specially prepared
pad 1³, preferably of somewhat elastic material, is placed beneath as a protection to
the glass and is provided with short projections upon which the character marks are
placed and thereby brought nearer to the surface, but, as shown in Fig. 5, the plate, F,
may be perfectly smooth underneath and permanently raised from its bed leaving space
to receive a card bearing the character marks. The type form, J³, consists of a plate
of elastic material such as rubber, upon the lower surface of which rubber type are
placed or formed. For many classes of work I find it preferable to provide metal
faced type which are formed separately by electro deposition, and being placed in the
mould are by the process of vulcanization firmly attached to their supporting base, the
rubber, as in Fig. 15, completely filling the bollow portions of each letter and thereby
gaining a very firm hold: 1, is the rubber base, 2, the metallic letter which is provided
with a suitable flange to give sufficient connection between itself and its support, and
3, is a light metallic frame to which the rubber base with its types is fixed and to
which is secured the actuating mechanism.
The pivot, G¹, of the key lever extends downward into the space between the top
and bottom plates of the carriage and to it is secured a light frame consisting of an
end piece k, and side rods, k¹, (Figs. 2, 4, and 5) upon or between which the type form
is mounted and arranged to have the greatest freedom of motion. The ends of rods k¹,
may be supported by rollers, k², resting on track, D, or the rollers may be omitted
and the rods slide upon the track itself.
As shown in Fig. 9, the sides of the frame, k, k¹, instead of being round rods are
hollow, and V-shaped, the type form J, sliding within, instead of thereupon.
The type form is swung radially in accordance with the movements of the key
lever as a whole, but its longitudinal motion is controlled by the telescopic end portion
to which it is connected by a vertical slip joint consisting of a tube, L, secured to its
frame, j³, the connection being completed by a rod, I, fitting into the tube and hinged
to the cross head, f. A solid post, L', may be substituted for the tube, L, and a
link, l, for the rod, l, as shown in Fig. 9.
I may also connect the type form to the key lover as shown in Fig. 7. To the rear
end of the sliding extension, G2, is attached a depending arm, G³, to the lower end of
which is attached the type carrying frame, 2, the said frame being wholly supported
by this depending arm. The connection between the type carrying frame and the
key lever consists of a hinge joint backed by a spring, 9', which in most positions
holds said hinge quite rigidly but yields sufficiently to allow the slight motion necessary
in certain positions of the lever and the type form.
Against the under side of the frame of the carriage is pivoted a flat arm or
support M, which extends outward; terminating in a handle, m, near which is fixed
a catch u. This arm is normally held in position by a suitable spring, m¹. Two
pawls, M', and N, are connected near their front ends on opposite sides of a rock arm, n,
their front ends passing through a guide plate M*, which may be the upturned edge
of arm, M, that is apertured to receive the pawl, N, and formed with an elongated
slot for the pawl, M', to allow said pawl to move laterally under the influence of
spring, M, when retracted. The other ends of the pawls, are suitably supported and
guided in posts, m², and n', and the pawl, M', is further provided with a collar or
pin, M³, in position to strike the plate, M, and so prevent the pawl being forced into
the rack bar with the full force of the spring P.
The pawl, M', is the longer of the two, and extends rearwardly, passing loosely
through its post, m³, and it is further provided with a hook, m³, at its outer end which
book surrounds a pin, O, upon a rock shaft, O¹, which is suitably journaled against
the lower side of the carriage, in a position transverse to the pawls.
The rock shaft, O³, is provided at each end with cranks, p, to which are connected
the vertical pins, *, extending from the frame h¹.
The pins, h, are surrounded by collars, p', or they may be provided with transverse
pins or stops, to which are connected the pivoted levers, Q, extending along the inside

page_text: of the frame of the carriage.
The levers, Q, connect with other and similar
levers, Q', upon ог near the free ends of which, upon suitable enlarge-
ments, q, rest the stems of the spacing keys, R, which stems, may, if
desired, be provided with transverse pins or heads, S, to prevent the keys from
falling out when the top of the carriage is raised. Suitable retracting springs, r,
are placed under the levers, Q. A spacing board, T, is also provided, and it extends
across the bottom edge of the carriage, where it is removably secured by means of
extensions, t, which pass around to the sides and pivot on the axes of the levers, Q³,
from the free extremities of which extend pins, t¹, that pass through slots in
the frame of the carriage and under the extensions, t, of the spacing board, and through
which the downward motion of the spacing board is transmitted to the escapement.
In the modified form of escapement shown in Figs. 10, 11, and 11*, I replace the
levers, Q, Q, by a single longer one, Q³, on each side of the carriage, each of which
is pivoted near its front end, which end portion, q², extends down and under the
rack bar, C, which in this instance is formed with a continuous screw thread instead
of separate teeth.
The ends, 92, are normally disengaged from the spiral and the carriage is held in
position by a pivoted dog 4, which is carried upon a shaft, 5, provided with a thrust
spring 6, for imparting lateral motion to the said dog whenever it is freed from the
ratchet. The lateral movement of the dog is limited by means of the headed pin, 7,
which passes through a bracket, 8, within which moves the wedge 9, said wedge
bearing against a cross pin, 10, in the pin, 7, and as the wedge is pushed in or drawn
out the pin will project to a greater or less extent from its bracket and limit the
lateral movement of the dog accordingly. The pins, *, rest upon the levers, Q³, as
upon lever, Q, and on depressing the space key or printing plunger the levers, Q²,
will throw its outer end up into engagement with the spiral, in doing which a
projection thereon will trip the pivoted dog, liberating it from the spiral and
permitting it to be thrown forward laterally until arrested by the head of the pin, 7.
On the descent of the lever, Q2, the dog will again engage the spiral, and the prime
motor overcoming the spring 6, will move the carriage laterally to the extent of the
preceding lateral movement of the dog, 4.
,
At the lower left hand corner of the carriage is placed a pawl, J, which depends
therefrom and strikes the ratchet wheel, b, when the carriage is brought back at the
beginning of a line. An adjusting screw J¹, is located in the path of the pawl, and
limits its descent, thereby controlling the point at which the pawl engages the
wheel, b, and the extent to which it and the axis A³, are rotated thereby. An
indicator scale j, is secured to the side of the carriage, and the screw, J', carries a
pointer by means whereof the position of the pawl and consequently the extent to
which the paper roller is turned, and the space left between the lines of printing
can be readily ascertained and controlled.
A modified form of the above is shown in Fig. 19.
To one end of the axis A³, of the paper roller, A2, is secured a ratchet, 12, and a
lever, 13, provided with a suitable pawl 14, is also mounted upon the axis A³, said
pawl engaging the ratchet 12. A spring 15 suitably connected to the frame, A¹, is
coiled around the axis and then secured to the lever and serves to retract it to its
original position. By raising the lever the roller will be rotated to a greater or less extent.
. A segmental rick, j, carrying a graduated scale representing portions of the
surface of the roller is secured in proximity to the lever 13, and a movable pin, 16,
preferably a small piece of spring wire coiled once or twice around the axis A³, and
extending into the path of the lever, is so arranged that its free end may be placed in
any one of the graduations of the scale and when so placed will serve to limit the
motion of the lever and the consequent rotation of the roller, A2, to an extent
equivalent to the distance desired between the lines of printing.
Operation: The movement of the key lever to position above the desired
character on the index plate produces a corresponding movement of the frame and
type form below it, bringing the corresponding character on the type form under the
plunger, which is depressed by the downward movement of the key lever in placing

page_text: the key on the character projection of the index plate, said movement depressing
the frame, h, and with it the pins, h, rocking the shaft, O', and thereby retracting
the pawl, M', which in turn vibrates the rock arm, n, and projects the other pawl, N,
into engagement with the ratchet. The end portion q², of the arm, Q2, Figs. 10, 11
and 11, takes the place of the pawl, M', just described, and the dog 4, that of the
pawl, N, their motion being pivotal instead of endwise.
Raising the key lever reverses the movement and positions of the parts just
described, and the spring moves the carriage laterally, one tooth of the ratchet, the
space required for one letter, but this movement is adjusted by a stop, V', pivoted on
the arm, M, or on the guide plate M', in the lateral path of the pawl, M', and on
the end of the lever, V, which is connected to a vertically moving adjusting
key, W, secured to the side of the carriage and by means of which the lever can
De raised or lowered from or into the path of the said pawl, M', the lateral movement
whereof, under the influence of its spring M2, and the consequent travel of the
carriage be limited to one tooth of the ratchet, or extended to two, by shortening
the lever, v, more than two spaces can be included in each movement, if desired. In
the modification, the headed bolt, 7, and wedge, 9, take the place of the lever, v, &c.
An inking pad, D2, surrounds the printing opening, z, and as one character is
pressed therethrough and upon the paper the remainder are inked.
The spacing board and keys, R, all operate upon the rock shaft and the escapement
through the compound levers, Q, Q', or lever arm, Q.
To move the carriage or return it after printing a line the hooks, m, u, are grasped,
the arm, M, moved upon its pivot, and the pawl, released, leaving the force of the
spring against the hand of the operator, who then, retaining hold of the hooks, moves
the carriage to the desired point and then releases it, the pawl, M, passing at once
into engagement with the ratchet and holding the carriage. The backward movement
of the carriage rewinds the spring C*.
A removable shield, Z, is hooked over pins, C6, at one side, and sprung behind a
ledge, 2, at its other, protecting the escapement and preventing the paper from
coming in contact with the moving parts.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed, I declare that what I claim is :-
1. A type writing machine in which a moving type form is brought into position
and then depressed by means of a suitably pivoted hand lever or key, the type form
being attached near the pivotal point of a telescopic lever provided at its free end
with a swiveled hand piece and key, which key may be placed upon any one of a
series of index projections, and with such a system of connections that the character
indicated by the projection under the key shall, by the action of bringing the hand
lever to the above described position, be ready to be impressed upon the paper and
next in line with the character last printed, the depression of the key upon the
projection then impressing said key upon the paper.
2. In a type writing machine, a telescopic key lever, consisting of a hinged and
pivoted portion and an end piece longitudinally movable thereon, a frame vibrating
about the same axis as the key lever, a type form mounted upon said frame and
adapted to move longitudinally thereon and connected to the end piece of the key
lever and moving in accordance therewith, substantially as described.
3. In a type writing machine a telescopic key lever, consisting of a hinged and
pivoted portion and an end piece longitudinally movable thereon, a frame vibrating
about the same axis as the key lever and provided with means for additionally
supporting its free ends, and a type form mounted upon said frame and connected to
the end piece of the key lever and moving in accordance therewith, substantially as
shown and described.
4. In a type writing machine a telescopic key lever consisting of a hinged and
pivoted portion and an end piece longitudinally movable thereon, a frame vibrating
about the same axis as the key lever and a type form mounted upon said frame and
adapted to be moved longitudinally thereon, and a vertically yielding connection

page_text: between said type form and the end piece of the key lever, whereby said type form
is moved longitudinally upon its support in accordance with the play of said end
piece, substantially as described.
5. In.a type writing machine the combination with a telescopic key lever consisting
of a hinged and pivoted portion and an end piece longitudinally movable thereon, of
a frame consisting of an end piece secured to the pivot of the key lever, and side
pieces extending therefrom and provided at their free extremities with rollers, a
suitable track therefor, and a type form secured within a frame which is mounted upon
the side piece of the pivoted frame and adapted to slide freely thereon, substantially
as described.
6. In a type writing machine a telescopic key lever consisting of a hinged and
pivoted portion and an end piece longitudinally movable thereon, and a type form
secured directly to said end piece and moving in accordance therewith, as set forth.
7. In a type writer a pivoted telescopic key lever consisting of a hinged and
pivoted portion, and an end piece longitudinally movable thereon, said end piece being
provided at its free end with a suitable key, substantially as set forth.
8. In a type writer the combination with the carriage C, of a fixed indicator plate
having projections upon its surface, a pivoted telescopic key lever, the free end of
which is capable of radial and circular movement over the indicator plate, a type form
suspended from the end portion of said lever and arranged to be brought thereby into
position for printing, and also to be depressed by the movement of placing the key
upon the desired projection of the indicator plate, as set forth.
9. In a type writing machine, the combination with an intermittently moving
carriage having an indicator plate attached to its surface, of a pivoted key lever,
having a telescopic end portion, a type form secured to said end portion and adapted
to be brought into position for printing the desired character by the movement of the
said telescopic lever incident to placing the key above the desired character indication,
and means operated by said key lever for depressing the character for printing,
substantially as described.
10. In a type writing machine the combination with a fixed indicator plate, a
pivoted key lever having a longitudinally moving end portion provided at its free
extremity with a key adapted to register with the character marks on the indicator
plate, of a frame vibrated about the axis of the key lever by the radial movements
thereof, and an elastic type form mounted upon said frame and connected directly
with the end piece of the key lever, whereby it is moved longitudinally upon its
support and into position for printing when the key is placed above the desired
character indicator and means substantially as described, operated by said key lever
for depressing the character for printing, substantially as described.
11. In a type writing machine the combination with an intermittently moving
carriage, a hinged and pivoted key lever provided with a longitudinally movable end
portion, a frame vibrated upon the axis of the key lever by the radial movement
thereof, a movable type form mounted upon said frame and connected directly to the
end piece of the key lever, a plunger suspended above a printing opening in the
lower surface of the carriage and in the path of the said key lever, whereby when the
type form is brought to the desired position the depression of the lever will actuate
the plunger and the character can be projected through the printing opening,
substantially as set forth.
12. In a type writer the combination of a ratchet bar, a carriage mounted thereon
and means substantially as described, for propelling it along the bar, with means for
restraining it against propulsion or intermittingly releasing it, said means consisting of
a pair of pawls alternately projecting end wise into the ratchet, said pawls being
mounted upon a movable support on the carriage, and adapted to be rendered
inoperative, and the carriage released, when their support is removed from its normal
position, substantially as described.
13. In a type writer the combination of a ratchet bar, a carriage mounted thereon
and means for propelling it along the bar, a pawl M, normally engaging the ratchet
and means substantially as described connected with the printing devices for

page_text: withdrawing it therefrom, a pawl N, normally disengaged from the ratchet, a lever
centrally pivoted and connected at its ends to the pawls whereby the retraction of the
pawl M. advances the pawl N, into engagement with the ratchet, as set forth.
14. In a type writer the combination of a ratchet bar, a carriage mounted thereon
and means substantially as described for propelling it laterally along the bar, an
end wise moving pawl M', normally engaging the ratchet and provided with a spring
adapted to impart lateral motion to it when retracted, and a pawl N, substantially as
described, connected to and forced end wise into the ratchet by, the pawl M¹, when
retracted, substantially as herein before set forth.
15. In a type writer the combination of a ratchet bar, a carriage mounted upon the
bar and propelled therealong, means substantially as described, for restraining or
releasing it step by step, consisting of a pair of pawls M, N, alternately projected
end wise into the ratchet, a spring to impart lateral motion to the front end of the
pawl M², and a pivoted dog lying in the path of said pawl to limit or define its lateral
throw, substantially as described.
16. In a type writer the combination with the carriage, means substantially as
described for propelling the same, and for controlling the movements thereof, of
levers Q, Q1, and a spacing board, substantially as described.
17. In a type writer the combination of an annular ratchet or spirally threaded bar,
the carriage adapted to be moved therealong, lever arms Q2, pivoted thereon and
provided with end portions q², normally out of engagement with the bar, a pivoted
dog 4, normally engaging the bar, and a spring for moving said dog laterally the
desired distance when released and means as described whereby on the printing of a
letter or the depression of a space key the lever arms Q³, are depressed, their
extremities 92, thrown into engagement with the teeth of the bar and the dog 4,
released thereby.
18. In a type writer the combination of the frame and supporting rack and ratchet
bar, or its equivalent, a carriage hinged upon and adapted to be propelled along the
said bar, said carriage being provided with a pointer adapted to be projected to the
printing surface by the raising of the carriage upon its hinges.
19. In a type writer a pointer hinged to the hinges of the carriage, substantially
as described.
20. In a type writer a pivoted telescopic key lever consisting of a hinged and
pivoted portion formed of the rods G, fixed in the head block, a crosshead ", moving
between or upon said rods, and a rod h, secured to the crosshead and passing through
the head block and provided with a suitable key at its free extremity, as set forth.
21. In a type writer the combination with the longitudinally moving end piece, a
crosshead, and a hinged and pivoted portion, of the type form frame, a post L',
secured thereto and a link l, extending between the post and the crosshead, sub-
stantially as shown and described.
22. In a type writer the combination with a carriage and means substantially as
described for propelling the same laterally, of the key lever, the frame h', having
extensions 3, the rock shaft O¹, and connections between the ends thereof and the said
extensions h³, and escapement devices operated by the depression of the key lever and
the rocking of the shaft O¹, as set forth.
23. In a type writer the combination with the transparent index plate F, having
projections at its upper side and openings extending partially into said projections
from below, of a pad I, formed with projections extending into said openings and
carrying the character indicators, as set forth.
24. In a type writer the combination with suitable frame, of a main paper roller, a
supplemental roller, a spring arranged to press the said supplemental roller against
the main roller, thereby securing the paper in position between the said rollers and
opposing their rotation by frictional resistance, a shield carried by the supplemental
roller for directing the course of the paper, and means for retracting said roller, and
shield for the insertion or removal of the work, as set forth.
25. In a type writer the combination with a frame, a paper roller provided with
suitable gear wheel at one end, of a shaft carrying a gear wheel at one end meshing

page_text: with the wheel on the roller, and a ratchet wheel at the other, a carriage, and a pawl
on said carriage in the path of the ratchet and means as described for adjusting said
pawl so as to engage said ratchet wheel to a greater or less extent, as set forth.
26. The combination with paper roller A, carrying gear a³, and suitable supports
therefor, of shafts B, carrying gear a*, meshing with said gear, a³, and a ratchet 6, the
carriage, the pawl J, adjusting screw J', and indicator j', as shown and described.
27. In a type writer, an indicator plate formed with fixed semi-spherical projections,
substantially as set forth.
28. In a type writer the indicator plate F, having semi-spherical projections, the
whole being formed from a single plate of transparent material, substantially as
described.
29. In a type writer the combination with an indicator plate F, having semi-
spherical projections formed integral therewith and of transparent material, of means
substantially as described for indicating the characters represented by the said
projections.
30. The combination of the movable type form, the key lever having a telescopic
end portion for controlling and actuating the same, the plate containing the printing
opening and provided with the inking cushion, and the vertically moving plunger
secured to a cross bar located in the path of the key lever for pressing the type upon
the ink cushion, and the paper at each depression of the lever, substantially as
described.
31. In a type writing machine a pivoted key lever provided at its free extremity
with a swivelled key button or finger piece, substantially as set forth.
32. In a type writing machine the combination with a key board having fixed
semi-spherical projections or character points, of a pivoted key lever provided at its
free extremity with the swivelled key button or finger piece K, formed with cupshaped
lower portion g, adapted to fit over the projections on the key board, substantially as
described.
33. In a type writing machine a pivoted key lever provided at its free extremity
with a swivelled key button or finger piece having a telescopic lower portion, sub-
stantially as described.
34. In a type writer a carriage having the corrugated top plate E, as described.
35. The combination with the axis A³, provided with suitable ratchet 12, of the
lever 13, carrying a pawl adapted to engage said ratchet and an adjustable stop
whereby the movement of the said lever is limited as desired, as set forth.
36. The combination with the axis A³, provided with ratchet 12, of the lever 13,
and suitable pawl, a spring for retracting said lever, the graduated segmental scale 14,
and the adjustable stop 16, substantially as shown and described.
37. The method herein described of attaching metallic letters, figures, or symbols,
to a flexible base, substantially as described.
38. The combination of a flexible base with metallic letters, figures or symbols,
substantially as and for the purpose described.
39. A printing device consisting of a hollow metallic type or shell united to a
flexible base, the said base filling the hollow metallic type or shell, substantially as
set forth.
Dated October 24th 1887.
WILLIAM WARRINGTON EVANS,
Washington, D.C., U.S.A.