US1014335A - Type-writing machine. - Google Patents

Description

G. E. SHEPARD.

TYPE WRITING MAUHINE.

Arrmonlon FILED Nov.1o, 1910.

Patented Jan. 9, 1912.

2 SHEETS-SHEET 1.

@y MM HIEATTURNEY 2 sums-sham 2.

Patented Ja.11.9, 1912.

Sy ir G. H. SHEPARD. TYPE WRITING MACHINE. APPLICATION FILED Nov. 1o. 19mv am mw N N E m v .gm W -.8 A Jg .1.1 E nu@ a W ,um N m j@ nw 2 W mm n --.fwn NP.. 2 Q

l I I WITNESEEJ 'same general objects in view as the cony showing a different Y., ASSIGNOR TO UNION TYPEWRITER COM- A CORPGRATION OF NEW YORK.

cHAnLns H. SHEPAND, or Nnw YORK, N. PANY, or iLioN, NEW Yoan,

TYPE-WRITING MACHINE. i

Specification of Letters Patent. Paten ted Jan E), 1912.

10, 1910. Serial No. 591,680.

Application Med November To all whom it may concern: I have shown my invention embodied in Be it known that I, CHARLES II. SHEPARD. the present instance in a No. 1() Remington citizen of the United States, and resident of y machine although only a conventional rcpthe. borough of Manhattan. city of New i resentatioii of the carriage appears in the York, in the county of New .fork and State drawings. It should be understood. howof New York, have invented certain new ever, that the invention may be embodied and useful Improvements in Type-VVriting l in various styles of typewriting machines. Machines, of which the following is a speci- The frame of the machine comprises a base l, corner posts Q and a top plate 3.

fication.

My invention relates to typewriting ma- Key levers 4 are fulcriimed at their rear ends on a fulcriiin plate 5. and each key chines and more particularly to carriage lever is provided with arfinger key 6. A

feed or escapement mechanism.

The present invention is in the nature of i returning spring i is connected at one end to each key lever 4. and at its opposite end an` improvement on the construction disto a connecting device S secured to the base closed in a companion application filed by i me of even date herewith and bearing Serial l of the machine. Each key lever is connected to an upwardly extending link 9,

which has its upper end connected to a sublever 10, pivoted at 11 to a hanger 12. The rear end of each sub-lever is connected to a link 13. which has its rear end connected to erated, eflicient and reliable escapement, and a type bar 14. Each type bar is pivoted at one in which the wear on the escapement 15, C0 a hanger l@ SGCUIQCI t0 il WPC hill" devices is greatly reduced. l segment 17. The various type bars are seg- The above and other advantages of the mentally arranged to strike upwardly and structure disclosed in the companion application are also inherent in the construction of the present invention and in addition the present invention enables the parts to be regulated at will to effect either ordinary or reverse feed as may be desired.

To the above and other ends which will hereinafter appear, my invention consists in the features of construction, arrangements of parts and combinations of devices to be hereinafter described and particularly pointed out in the appended claims.

In the accompanying drawings wherein like reference characters designate corresponding parts in the various views, Figure 1 is a fragmentary, central, vertical seci tional, view of one form of typewriting machine embodying my invention. Fig. 2 is by reason of the fact that the drinn is lol cated on this side of the plane on which the a fragmentary, side elevation, with parts in l section, showing a portion of the escape- 1 section is taken in Fig. 1. Rearwardly exinent mechanism. Fig. 3 is a like view of y tending arms 24 are pivoted at Q5 to the the same. showing the parts differently discarriage, near the ends thereof. These posed. Fig. 4 is a detail fragmentary rear arms are connected to a feed rack 26. which elevation showing the escapement wheel and meshes with a feed pinion 27. The feed feed dog. Fig. 5 is a fragmentary side elepinion is fixed on the forward end of a shaft vation of parts of the escapement mechal 28, which turns in a bearing 29 secured to nism corresponding to Figs. 2 and 3 but l the top plate of the machine. The rear end disposition of the parts l of the shaft extends beyond the bearing and iihas a circular feed rack or an escapement The present invention has some of the struction disclosed in said companion application, namely; to provide an easily oprearwardly against the front face of a cylindrical platen 18.

The platen is carried by a. carriage 19. the platen and carriage being represented in the present instance in a conventional manner. Front and rear cross bars Q0 of the carriage are oppositely lqrooved to forni iguides which cooperate with anti-friction balls or rollers 21, which are likewise received in oppositely grooved fixed guide rails 22. secured to lugs 23 which project upwardly from the top .plate of the machine. The carriage is thus supported to travel from side to side of the machine over i the top plate being propelled in its movement from right to left by the usual spring drum a indicated in dotted lines in Fig. 1

from those represented in Figs. 2 and' 3,

wheel connected therewith. In the present instance the escapement wheel is a double wheel, comprising two escapement wheels 30 and 31 spaced apart by an intermediate disk 32 and secured together by screws 33.

The escapement wheel 30 has a hub 34, tapped to receive set screws 35, by which the double escapement wheel may be fixed to the shaft 28. The teeth of the two escapement wheels 30 and 31 are arranged so that a movement of the double wheel from a tooth on one wheel, say, 30, to the next tooth on the other escapement wheel 31, affords a full letter space movement of the carriage under the power applied to the carriage from the spring drum c. A dog rocker 36 has its rock shaft 37 pivoted at its ends on cone supporting members n`ot shown) which are held in place in lugs 38 by screws The lugs 38 extend rearwardly from a bracket plate 40 which is secured to the bottom of the top plate 3. The dog rocker is slotted at its upper end, to receive a feed dog 41, pivoted in the slot in the dog rocker, as indicated at 42, so that the tail 43 of the dog bears against a portion of the dog rocker to limit the upward movement of the dog 41. A spring 44 is received in a recess in the dog rocker and bears at its upper end against the dog 41, to the right of its pivot as the parts appear in Fig. 4, in order to normally maintain the dog in thc path of teeth on the escapement wheel. This construction encbles a reverse rotation of the escapement wheel to take place during the movement of the carriage from left to right. During such movement of the escapement wheel the rear sides of the teeth which are in the plane of the dog, bear upon and press it down against the pressure of the spring 44; the dog thus being moved out of the path of the teeth to enable the wheel to rotate freely during the backward movement of the carriage. A screw stop 45 is received in a tapped opening in the upper arm of the dog rocker, and is adapted to bear at its forward end against an abutment 46 carried by the bracket plate 40. An arm 47 projects forwardly from the dog rocker, and is tapped to receive a screw stop 48 which extends at right angles to the screw stop 45 and is adapted to bear at its upper end against the abutment 46. These stops limit the movement of the rocker in opposite directions. The dog rocker is provided with a. depending arm 49 which carries a laterally projecting pin or stud 50 which constitutes an engaging device. This stud extends at ri ht angles to the length of the arm 49 an is preferably substantially triangular in cross section. This engaging device is coperative with two actuating devices or pawls 51 and 52 which are pivoted at 53 near the opposite ends of an oscillatory device 54, which is in the nature of a lever of the first order,

pivoted on a shouldered pivot screw 55 and limited in its movement in one direction by a stop 55a. The screw 55 is received at its threaded end in a ta pcd opening in a lug 56. This lug, as wel as the stop 55, constitutes parts of a bracket 57, which is secured at its lower end to the base of the machine by screws 58. A light contractile spring 59 is connected at its ends to pins 60, which project from the pawls 51 and 52. The spring 59 is effective to draw the pawls by a light pressure toward each other and toward the engaging device 50 on the dog rocker. Each of the pawls has a hook-like engaging portion which is adapted to cooperate with the engaging member 50 on the dog rocker. Thus, the pawl 51 is recessed at 61, the recess conforming to the shape of the engaging member 50 on two sides thereof, whereas the pawl 52 is recessed at 62 to en age the member 50 on the opposite side t ereof. The pawl 51 has a contact face 63, with which the contact faces 64 and 65, of the pawl 52, are adapted to coperate in a manner which will hereinafter more clearly appear. The purpose of these engaging faces is to prevent one of the pawls rom engaging the member 50 when the other pawl is in engagement therewith.

From the foregoing description it will be understood that a turnin movement of the lever 54 in either direction will cause the pawls 51 and 52 to move in opposite directions as indicated by the arrows in the various views. The lever 54 is provided with an arm 66 which is pivotally connected with a lever 67 of the rst order, by a shouldered screw pivot 68. The lever 67 has a longitudinally extending slot 69 midway in the len th thereof for the rece tion of a shouldereY screw pivot 70, which 1s received at its threaded end in a bracket arm 71 which projects from the bracket 57. This slot 69 enables the lever to receive a slight longitudinal movement on its pivot during the turning of the levers 67 and 54.

The forward end of the lever 67 is tapped to receive the threaded end of a shouldered screw pivot 72, by which an actuating link 73 may be connected to the forward end of the lever. The construction is such that the link 73 may be connected to the lever 67 at the forward end by the screw 72 or may be connected to the lever at the opposite end by the screw 68, for purposes which will hereinafter more clearly appear. An upwardly extending bracket arm 74 projects from the bracket 57 and is tapped to receive a screw 75. This screw is hollow and is adapted to receive a ball 76 connected to one end of a contractile spring 77. The opposite end of this spring may be connected to the lever 67 in the opening 78, on one side of the' pivot of said lever, or may be conneted at the other side of the pivot of said lever to a perforated ear siimed for the purpose of the present 79, which projects from the arm 66 of the scription that the parts are at a state rest in the positions indicated in Fig. 2.

lever 54; the last mentioned osition of the depression of a finger or printing key spring being indicated in otted lines in Fig. 2. In this manner-ther spring 77 may be connected to the parts at one side or the other of the fulcrum'of the lever 67 and the link 73, by which the parts are actuated, may also be connected to the lever 67 at one side or the other of its fulcrum. The link 73 is preferably provided with a turn buckle 8O by which the link may be lengthened or shortened to accommodate itself to its adjustment at either one side or the other of the fulcrum of the lever 67. The lower end of the link 73 is bifurcated, and a pin 81 extends across the opening formed by the bifurcation in the lever and is received in an upright slot 82 formed in a crank arm 83, which projects rearwardly from a rock shaft 84. This construction is such as to enable the crank arm to move downwardly a short distance before the pin 81 reaches the bottom of the slot 82, and before motion is transmitted to the actuating link 7 3 and the parts controlled thereby. Rearwardly extending crank arms 85 project from the rock shaft 84, near the ends thereof, and each arm is connected to a depending link 86, connected at its lower end to a universal bar 87,' which extends beneath the system of key levers 4. A contractile spring 88 is connected at one end 89 to the type bar segment and at its opposite end 90 to the crank arm 83, in order to return the arm 83, rock shaft 84 and universal bar to normal posiis effected without transmitting movem connection between arm. Then the bottoni of the pin 8l, the link thus pulling down lever ('17 and cruin. This effects a turning movement the 'forward end of 2 to that indicated in Fig.

assume at the termination of this first pression or down stroke of a key. During the movements of the parts described the paivls 5l into opposite directions arrows in Fig. "2. pawls in this direction, and at this time ineffective to transmit movement to tbe rocker; the paivls finally sitions shown in Fig. 5 of the down stroke. depressed printingl key ating link 73 will move upwardly under force of the spring 77, movement will be transmitted to the le 54 to move the pawls sitions indicated in Fig.

as indicated by at the termin-at 5, and in the dii this time is effective to depress the universal bar 87, thus moving the crank arm 88 down. The first part of the movement of the arm 83 ent to the link 78 b v reason of the lost motion said link and the crank the slot 82 reaches 73 will be pulled down,

the

turning said levor on its fulthe lever 54 from the position shown in Fig.

5, which represents the parts in the positions which they ust and will bc moved tlie The movement of said dog arriving at the poion then pressure on the is released theV actuthe and an oscillatory 5l and 52 from the potions of the arrows in said ligure, to the potion, when pressure is released on a desitions indicated in Fig. 3,wliiclilatier tlg-ure, pressed finger key. The purpose of providrepresents the disposition of the parts at the ing adjustable means, or means whereby a end of the first up stroke of the key. .is the pawls 5l and 52 move from the positions connection may be made between the link dicated in Fig. 5 to those 7 3 and the parts with which it co-acts at different points, and of adjusting the lower end of the spring 77 to-one side or the other of the fulcrum 70, is to regulate the escapement mechanism at will to feed either ordinary or reverse, as may be desired. The point of connection of the link 73 to the forward end of the lever 67 is represented in full lines in the various views, as is the corresponding arrangement of the returning spring 77. When the link is connected with the parts in this manner they are arranged for ordinary feed so that the letoif of the carriage takes place on the up stroke of the key.

The operation of the parts when set for ordinary feed will first be described. While 'either of the positions of the dog rocker illustrated in Figs. l and 2 may be regarded as the normal position, it will be observed that in both instances the position of the actuating devices which control the dog rocker are the same, although the posi-` tions thereof With reference to the engag-` 55 ing device 50 are altered. It may be asso as to aii'ord a seating of the pin 50 51 has an opportunity to engage pin in the manner described is effect 50 vent a downward movement of the pawl at this time. The movement of the pawl tive to bring the Contact faces b4 and 65, Said paivl, into position where they adapted to cooperate with the Contact f 63, on the paivl 5l, to prevent this last in afford a free movement the pin as indicated in Fig. 8. 52 moves in the direction of tlie arrow, fr the position shown in Fig. 5 to that indica in Fig. 3, it engages ner described and shifts the cated in Fig, 3.

lll-

indicated iii Fig. 3 as just described.` the paivls will be moved lll the recess 62 in said pawl. before the pawl the said pin.

The en agement of tlie iawl with the ive to bring the bill of the hook-like engaging portion of the paivl 52 over the pin to preinto engagement ivitli the pin o() is also effecare ace

tioned pawl from engaging the pin and to of the paivl 51 past As the pawl om t e d the pin 50 in the inandog rocker from the position shown in Fig. 5, to that indi- This movement of the dog rocker is effected at the up stroke of a key and under the stress of the spring 77; the clovvn stroke of the key having been effected without moving the dog rocker.

The movement of' the dog rocker just described carries the feed dog 41 out of engagement with a tooth 011 the escapement wheel 30 and moves it into the path of the next oncoming tooth on the escapement wheel 31. As hereinbefore indicated, this movement of the dog transversely of the planes of' the escapement wheels, is effective to afi'ord a full letter space movement of the carriage which, in the present instance, takes place at the np stroke of' a key. This leaves the parts disposed as indicated in Figs. 1 and 3, and the next depression of a key moves the parts from the positions indicated in Fig. 3; the pawls 5l and 52 traveling in the directions of the arrows indicated in said figure. At this time the movement of the pawls is ineffective to transmit movement to the dog rocker. iVhen, however, pressure is released on the depressed key the paivl 51 is first brought into engagement with the pin 50 and the bill of the hooklike engaging portion of said pawl engaging under the pin. is effective to prevent the paivl from being lifted at this time. This maintains the contact face 63 on the pawl 51 in a position where it is adapted to coperate with the contact faces 64 and 65 on the pawl 32. As pressure is released on the finger key the pawls 5l and 52 will move in opposite directfons from those indicated by the a1'- roivs in Fig. 2, and the effect of these 1novements of the pawls is to move the dog rocker from the position shown in Fig. 3 to that indicated in Fig. This last mentioned figure therefore represents the disposition of the parts at the termination of the second up stroke of the key.

The movement of the dog rocker just described. from the position shown in Fi 3 to that indicated in Fig. 2, causes the eed dog il to be moved rearwardly out of en gagement with a tooth on the escapeinent wheel 31 and into the path of the next oncoming tooth on the escapement Wheel 30. This movement of the feed dog transversely of' the wheels is effective to produce a full letter space movement of the carriage as previously pointed ont. It will be understood that in each instance the movement of the dog rocker is eiected by the pressure of the spring 77 which returns the actuatin devices for the dog rockerLto normal pos1- tion. The pressure of this spring may be varied by the adjusting device 7 5 to render said spring effective for this purpose.

It will be observed that the dog rocker itself is entirely free from spring pressure and is adapted to remain in either of the back and forth positions to which it may be moved by the actuating devices. If the bearings for the dog rocker do not provide sufficient frictional resistance to maintain the dog rocker against accidental displacement in either of' the back and forth positions to which it may be moved, any suitable resisting means may be empioyed for this purpose. In the present instance I have illustrated a bearing roller 91, mounted on a vertical pivot 92, 0n a bracket arm 93, which projects from the bracket 57, hereinbefore referred to. The periphery ot' this roller 91 bears against a Hat side of the depending arm :t9 of' the dog rocker, in its back and forth movements, and tends to prevent an accidental displacement of the dog rocker from the position to which it may be moved by its actuating devices. At the same time the resistance offered by the roller is slight and does not materially retard the dog rocker in the movements transmitted thereto by the actuating devices and by the spring 77. The slot 69 in the lever 67, as hereinbefore pointed out, affords a slight longitudinal movement of the lever during the movement of the actuating devices in order to prevent the connections between the levers 54 and 67 from jamming.

In order to set or regulate the parts to provide a reverse feed, or one which takes place at the down stroke instead of at the up stroke of a ke it is merely necessary to disconnect the upper end of' the iink 73 from the front end of the lever 67, and to shift said link and connect it to the parts by the screw 68, thereby adjusting the upper end of the link from one side to the other of the fulcrum of the lever 67. The turn buckle 80 may be adjusted in order to compensate for the variation in the position of the link 73, with reference to its coperating actuating devices. Thus the parts of the actuating devices should be normally disposed in the positions represented in Fi when they are set for reverse feed, and the turn buckle 80 may be used to aid in affording a proper positionin of the parts in the positions indicated. Te lower end of the spring 77 is also disconnected from the lever 67 at the point 78, and is connected at 79 to the opposite side of the fulcrurn of the lever 67. The dog rocker being actuated at a depression of a key in this instance, it is unnecessary to employ the same amount of' force in the spring 77 that is required when the parts are set for ordinary feed. It is merely necessary, when the parts are set for reverse feed, to employ sufficient force in the spring 77 to restore the actuating devices to normal position. The adjusting screw 75 may, if necessary, be turned down so as to reduce the force applied by the spring 77 to the actuating devices. The parts being thus set for reverse feed a depression of a finger key is effective to pull down the link 73 from the position indi reverse cated in dotted lines in Fig. 5, and this movement is effective to turn the lever 54 in a direction opposite to that in which it is turned when the link 7 3 Was connected to the forward end of the lever 67. The effect of this downward movement of the link 7 3 is to move the pawls 51 and 52 in the directions indicated by the arrows in Fig. 5, and at this time the pawl 52 will be moved into engagement with the pin 50, to move the dog rocker from the position shown in Fig. 5 to that indicated in Fig. 3, which latter figure represents the disposition of the parts at the termination of the first down stroke of a key, when the parts are set for reverse feed. As the dog rocker is moved positively at this time by the down stroke of the key the feed dog is moved from one escapement Wheel to the other in the manner described and the full letter space movement of the carriage is effected. When pressure on the depressed finger key is released the actuating devices will be restored to normal position, such as is indicated in Fig. 5, Without transmitting movement to the dog rocker. The next down stroke of a key is effective to move the pawls 51 and 59d from the positions shown in Fig. 5, to the positions shown in Fig. 2. At this time the pawl 51 engages the pin 50, and the pawls moving from the Fig. 5 to the Fig. 2 positions in the directions of the arrows in Fig. 5, will move the dog rocker from the position shown in Fig. 3, to that represented in Fig. 2; the paWl 52 at this time being maintained out of engagement with the pin 5() by the cooperation of the contact faces 63, 64 and 65. This last mentioned movement of the dog rocker effects a fuil letter space movement of the carriage. At the next up stroke of a key, the actuating devices are again returned to the positions shown in Fig. 5, Without transmitting movement to the dog rocker. The dog rocker at this time being in the position indicated in Fig. 5, the operations described in connection with the first down stroke of the key will be repeated at the next key depression.

It Will be observed that the pawls 51 and 52 move in opposite directions at each up stroke and also at each down stroke of a key; that the pawls are each operative to move the dog rocker in but one direction; that the parts may be regulated so as to feed at either the down stroke or at the up stroke of a key, to aord either ordinary or feed, as may be desired; that in either instance the dog rocker and feed dog receive a. movement in but one direction at each complete operation of a linger key; that the dog rocker is free to remain in either of the back and forth positions to which it may be moved and has no returning spring; that the movement of the feed dog and rocker in but one direction at each complete operation of the key reduces the Wear on the escapement devices by one-half over the ordinary construction in which it is necessary to move the dog rocker and feed dog back and forth at each complete .operation of a key; that the construction is such that it requires but little power to actuate the parts, thereby providing a light touch on the finger keys; that when the parts are set for reverse feed the entire train of mechanism from the finger key to the feed dog is actuated by a ositive pressure applied to the finger key, but that the actuating devices on the dog rocker are inoperative to move it during the up stroke of the key, so that any trembling of the keys at the last part of the down stroke cannot be transmitted to the dog rocker and therefore there is no liability of the carriage skipping under the control of the escapement as is often the case in f reverse feed constructions ordinarily employed; and that the escapement is therefore effective and reliable, irrespective of the character of the operators touch.

I am aware that various modifications may be made Without departing from the spirit of my invention, and have illustrated a modified form of construction embodying many of the advantages of the present construction, and by which the parts may be regulated at will to effect either ordinary or reverse feed of the escapement, in a companion application, Serial No. 591,681 filed by me of even date herewith. Certain of the claims herein cover broadly the modified form of the invention embodied in said companion application; the claims in the said companion application being restricted to features not herein shown.

My companion application, Serial No. 591,679 hereinbefore referred to, embodies generic claims covering the construction disclosed herein, the claims in the present case being restricted to features not disclosed iu said companion application.

What I claim as new and desire to secure by Letters Patent, is

1. In a typewriting machine, the combination of a carriage; escapement mechanism therefor which includes two cooperative escapement members, one movable back and forth relatively to the other', finger keys and means controlled by said finger keys for controlling the operation of the escapement mechanism, said controlling means including means for moving the said movable escapement member alternately back and forth at successive printing operations, each complete operation of a finger key moving said movable member either back or forth; and means for regulating parts of the controlling means to feed ordinary or reverse i as may be desired.

2. ln a typevvriting machine, the combination of a carriage; escapement mechanism therefor comprising a dog member and a rack member, one of said members being movable relatively to the other transversely of the plane of the rack member; printing keys; means controlled by said printing keys for moving said movable member back and forth in the direction specified at successive printing operations, each complete operation of a printing key moving said movable member either back or forth; and means for effecting a relative adjustment of the parts at will to effect ordinary or reverse feed as may be desired.

3. In a typewriting machine, the combination of a carriage; escapement mechanism therefor comprising two coperative escapeinent members, one movable back and forth relatively to the other; finger keys; means controlled by said finger keys for moving the said movable escapement member alternately' back and forth at successive printing operations, one key operation moving the movable member in one direction and the next key operation moving the movable escapement member in the opposite direction; and means for effecting a relative adjustment of the parts at will to effect ordinary or reverse feed as may be desired. i

4. In a. typewriting machine, the combination of a carriage; escapement mechanism therefor comprising an escapement Wheel and a feed dog, a single movement of the feed dog in one direction affording a complete letter space movement of the carriage; finger keys; means intermediate said finger keys and dogs for effecting a movelnent of' said feed dog alternately in one direction and then in the opposite direction at successive operations of the keys, each complete operation of a key effecting a movement of the dog in but one direction; and. means for effecting a relative adjustment of the parts at will to effect ordinary or reverse feed may be desired.

5. In a typewriting machine, the combination of a carriage; escapement mechanism therefor comprising a feed rack and a dog, one of sa id feed rack and dog members being movable relatively to the other; finger keys; means intermediate said keys and said movable member for effecting a movement of said movable member in one direction only at each complete actuation of a key, successive operations of the keys eHecting a movement of' said movable member first in one direction and then in the opposite direction; and means for effecting a relative adjustment between parts of said intermediate means to effect ordinary or reverse feed as may be desired.

(. In a typewriting machine, the combinai tion of a carriage; escapement mechanism therefor comprising two coperati ve escapement members, and a rocker which carries one of said escapement members; finger of, to effect reverse keys; means intermediate said finger keys and rocker for moving the rocker alternately first in one direction and then in the opposite direction at successive operations of said finger keys, a complete operation of each finger key eecting a single movement of the rocker in only one direction; and means for effecting a relative adjustment between parts of said intermediate means to effect ordinary or reverse feed as may be desired.

7. In a typevvriting machine, the combination of a carriage; escapement mechanism therefor comprising two coperative escapement members and a rocker which carries one of said escapement members; finger keys; means intermediate said finger keys and rocker for moving the rocker first in one direction at the operation of a key and then in the opposite direction at the next operation of a key; and means for effecting a relative adjustment between parts of said intermediate means to effect ordinary or reverse feed as may be desired.

8. In a typevvriting machine, the combination of a carriage; escapement mechanism therefor comprising two coperative escapement members and a rocker which carries one of said escapement members; finger keys; means intermediate said finger keys and rocker for moving the rocker first in one direction at the operation of a key and then in the opposite direction at the next operation of' a key; and means for effecting a relative adjustment between parts of said intermediate means to effect an actuation of said rocker from said keys on the down stroke of the keys or on the up stroke thereor ordinary feed as may be desired.

9. In a typewriting machine, the combination of a carriage; escapement mechanism comprising two coperating members; finger keys; means controlled thereby for controlling one of said escapement members, said controlling means comprising actuating devices movable in opposite directions, and means by which one of said escapement members is actuated first by one and then by the other of said actuating devices at successive key operations; and means for determining Whether said actuating devices shall be operated on the down stroke or on the up stroke of the keys.

10. In a typewriting machine, the combination of a carriage; escapenient devices; finger keys; means controlled thereby for controlling theoperation of said escapement devices, said controlling means comprising actuating devices movable in opposite directions; and means whereby an actuation of certain of said escapement devices is effected first by one and then by the other of said actuating devices at successive key operations; and means for effecting a relafor effecting a relative adjustment between parts ordinary or reverse l feed at will.

l2. In a typewriting machine, the combi-l nation of a power driven carriage; escapenient mechanism therefor comprising twoA cooperative escapement members, one movable back and forth relatively to the other and free to remain in either of the two back and forth positions to which it may bel moved; finger keys; means controlled by said finger keys for controllingr the oper-4 ation of said escapement mechanism, saidl controlling means including means for moving said movable escapement member alterQ nately first to one of said positions and then to the other; and means for effecting a relative adjustment between parts of said key controlled controlling means to produce ordinary or reverse feed at will.

13. In a typewriting machine, the combi-V nation of a power driven Carriage; escapement mechanism therefor comprising two coperative escapement members one movable back and forth relatively to the other and free to remain in either of the two back and forth positions to which it may be moved; finger keys; means controlled by said finger keys for moving said movable cscapenient member alternately first to one of said positions and then to the other; and regulating means for determining whether said key controlled moving means shall be effective to move the movable escapement member on the down stroke or on the up stroke of a key.

14. In a typewriting machine, the combination of a power driven carriage; escapement mechanism therefor comprising two cooperative escapemeiit members one movable back and forth relatively to the other and free to remain in either of the two back and forth positions to which it may be moved, each of such movements of the movable member to either of said positions affording a full letter space movement of the carriage; finger keys; means controlled by said finger keys for moving said movable escapement member alternately first to one of said positions and then to the other; and

and firstV one and then the other of said actuating devices at successive key operations; and means of said controlling means to produce.

regulating means for determining whether said key controlled moving means shall be effective to move the movable escapement member on the down stroke or on the up stroke of a key.

15,. In a typewriting machine; the combination of a carriage; escapement mechanism therefor comprising a rocker free from spring pressure and movable back and forth and adapted to remain in either of the two back and forth positions to which it may be moved; finger keys; means controlled by said finger keys for moving said rocker alternately back and forth first to one of said positions and then to the other at successive key operations; and means for determining whether said rocker shall be moved at the down stroke or at the up stroke of a key.

16. In a typewriting machine, the combination of a power driven carriage; escapenieiit mechanism therefor; finger keys; means controlled by said finger keys for controlling the operation of said escapcment mechanism; said controllingl means including two actuating devices which are moved in opposite directions at each imiwemcnt of thc key in one direction, to actuate a member of the escapement mechanism; means by which each of said actuating dev ices is effective to move a member of the cscapcment in one direction but is ineffective to move it in the opposite direction; and means for changing the relation of the parts of' said controlling means to feed ordinary or reverse as may be desired.

17. In a typewriting machine.J the combination of a power driven carriage; escapement mechanism therefor; finger keys; means controlled by said finger keys for controlling a member of said escapcment meclia- 105 nism, said controlling means comprising two actuating devices which are moved in opposite directions at each movement of a key in one direction, means by which each of said actuating devices is effective to move 110 a member of the escapement in one direction but is ineffective to move it in the opposite direction; and means for effecting a change in the direction of the movement of parts of said controlling n'ieans to afford 115 either ordinary or reverse feed as may be desired.

18. In a typewriting machine, the combination of a power driven carriage; escapement mechanism therefor comprising two 120 coperative members one of which is niovable back and forth relatively to the other; finger keys; spring returned means controlled by said keys for effecting said back and forth movements of said movable es- 125 capement member; and means for regulating said spring returned key controlled means to move said movable escapement member either by the pressure applied to the finger keys by the operator or by the 130 spring which restores said key controlled means to normal position.

19. In a typewriting machine, the combination of a power driven carriage, escapement mechanism therefor comprising two cooperative members one of which is.movable back and forth relatively to the other; finger keys; spring returned means controlled by said keys for effecting said back and forth movements of said movable escapement member; and means for effectin a relative adjustment between parts of sai spring returned means so that a down pressure alone on said keys is effective to transmit said back and forth movements to the movable escapement member or so that the movement of restoration of the spring returned means alone is effective to transmit said back and forth movements as may be desired.

Q0. In a typewriting machine, the combination of a power driven carriage; escapement mechanism therefor comprising two coperative members one of which is movable back and forth relatively to the other; finger keys; spring returned means con` trolled by said keys for effecting said back and forth movement of said movable escapement member, said means including two oppositely disposed hooks, means for moving said hooks in opposite directions at each operation of a key, and means whereby said hooks are rendered alternately effective to move the said movable escapement member first in one direction and then in the other in the back and forth movements thereof; and means for changing the relation of the lparts so that the hooks are rendered effective to move the movable escapement member only on the down stroke of a key or onl on the up stroke of a key as may be desire 2l. ln a typewriting machine, the combination of a power driven carriage; escapement mechanism therefor comprising two coperative members one of which is movable hack and forth relatively to the other; finger keys; spring returned means controlled by said keys for controlling the operation of said escapement mechanism, sa1d controlling means including two oppositely disposed hooks for effecting said back and forth movements of said movable escapement member; means for moving said hooks in opposite directions at each operation of a key, and means whereby said hooks are rendered alternately effective to move the said movable escapement member first in one direction and then in the other in the back and forth movements thereof; and means which afford a setting of parts of the key controlled means to cause the escapement mechanism to feed ordinary or reverse as may be desired.

2Q. In a typewriting machine, the combination of a power driven carriage; escapement mechanism therefor comprising two cooperative members one movable back and forth relatively to the other; finger keys; and means controlled by said finger keys for moving said movable escapenient member forward at one key depression and back at the next, said means including an element which may be set to cause the movable escapement to be moved forward at one up stroke of the key and back at the next instead of being moved alternately back and forth at successive key depressions.

23. In a typewriting machine, the combination of a power driven carriage; a feed rack; a feed dog; a dog rocker free from spring pressure; printing keys; controlling means intermediate said printing keys an said rocker, said controlling means moving the rocker at either the down stroke only or at the up stroke only "of each key; and means for determining whether the rocker shall be moved at the down stroke or at the np stroke of the keys.

24. In a typewriting machine, the combination of a double escapement rack; a single dog cooperative therewith; printing keys; and means intermediate said printing keys and said single dog and controlled by said printing keys for effecting back and forth transverse movements of said dog, said means including means by which a complete operation of a printing key is operative to effect a transverse movement of the dog in but one direction.

25. In a typewriting machine, the combination of a double escapement rack; a single dog coperative therewith; printing keys; means controlled by said printing keys for effecting relative back and forth transverse movements between said dog and said racks, said means including means by which a complete operation of a printing key is opera tive to effect a relative transverse movelnent between the dog and racks in but one direction, and means by which the kev controlled means may be rendered efectivo either at the down stroke or at the up stroke of a key to eifect such relative movement.

QG. In a typewriting machine, the combination of a power driven carriage; two escapement wheels; a single feed dog cooperative therewith; a dog rocker which is free to be moved back and forth and to remain in either of the back and forth positions to which it may be moved; printing keys; and means intermediate said printing keys and dog rocker for moving the latter in but one of said back and forth directions at each complete operation of a key.

27. In a typewriting machine, the combination of a power driven carriage; two escapement wheels; a single feed dog coperative therewith; a dog rocker which is free to be moved back and forth and to remain in either of the back and forth positions to which it may be moved; printing keys; means intermediate said printing keys and dog rocker for moving the latter in but one of said back and forth directions at each complete operation of a key; and means by which the relation of the parts 'of said intermediate means ma be changed to move the dog rocker at either the up stroke or at the down stroke of a key.

28. In a typewritiiig machine, the combination of a power driven carriage; tvvo eseapement Wheels which are fixed to turn together and which afford a full letter space movement of the carriage at each movement of the Wheels from one tooth on one wheei to the neXt tooth on the other wheel; a single dog which coperates With said escapement wheels; a dog rocker which earries said dog and by which it is moved back and forth transversely through said Wheels, said rocker being free to remain in either of the back and forth positions to which it may be moved; printing keys; and means controlled thereby for moving the rocker back and forth and for moving it to but one of said back and forth positions at each complete operation of a printing key.

29. In a typewriting machine; the combination of a power driven carriage; tvvo escapeinent Wheels which are fixed to turn together and which afford a full letter space movement of the carriage at each movement of the Wheels from one tooth on one Wheel to the next tooth on the other wheel; a single dog which coperates with said escapement Wheels; a dog rocker which carries said dog and by Which it is moved back and forth transversely through said Wheels, said rocker being free to remain in either of the back and forth positions to which it may be moved; printing keys; and means controlled thereby for moving the rocker back and forth and for moving it to but one of said back and forth positions at each complete operation of a printing key, said moving means including a member which may be set at will to determine Whether the dog rocker shall be rocked at the doivn stroke or at the up stroke of a ke :50. In a typewriting machine, the combination of a power driven carriage; escapement mechanism comprising coperative eseapement members one movable back and forth transversely of the other; finger keys; means controlled by said finger keys for moving said movable member back or forth at each complete operation of a key, such complete operation being operative through said means to move the escapement member in one direction and being inoperative to move it in the opposite directon; and means by which said key controlled means may be rendered effective to move said transversely movable escapement member either at the down stroke or at the up stroke of a key.

31. In a typevvriting machine, the combination of a power driven carriage, escapement mechanism comprising ccperative escapement members one movable back and forth transversely of the other; finger keys; and means controlled by said finger keys for moving said movable member back or forth at each complete operation of a key, said key controlled means including means which may move independently of the movable eseapemeiit member at either the down stroke or at the up stroke of a key, and means for determining Whether the said independent movement shall take place at the down stroke or at the up stroke of a key.

`Iii a typevvriting machine, the combination of a power driven carriage; vtWo eseapement Wheels therefor, said Wheels being connected to turn together; a dog rocker; a single dog carried by said dog rocker and affording a full letter space movement of the carriage at each back or forth movement of the dog rocker; finger keys; means controlled by said finger keys for moving said dog rocker, said means including means by Which the dog rocker is moved in one direction only at each complete operation of a key; and means for determining Whether the dog rocker shall be moved at the down stroke or at the up stroke of a key.

33. In a typewriting machine, the ombination of a power driven carriage; cooperating escapement members therefor, one of said escapement members boing movable back and forth relatively to the other; finger keys; means intermediate said finger keys and the said movable escapement member to control its back and forth movements, said means comprising two paivls which operate alternately at successive key operations to move said movable escapement member back and forth, and means for determining whether said pawls shall operate to move the movable escapement member on the up stroke or on the down stroke of each key.

34. In a typewriting machine, the conibiiiaton of a power driven carriage; cooperating escapement members therefor,.one of said escapement members being movable back and forth relatively to the other; finger keys; and means intermediate said finger keys and the said movable escapement member to control its back and forth movements, said means comprising an oscillating mentber, and pawls operative alternately at successive key operations to move said escapement member back and forth, one of said pawls being effective at one key operation and the other pawl being effective at the next key operation, said intermediate means also comprising a member adapted to be connected to said oscillating member at one side or the other of the pivotal center theres of to determine Whether the said pawls shall be effective at the dovvn stroke or at the up stroke of each key.

35. In a typewriting machine, the combination of a power driven carriage; cooperating escapeinent members therefor, one of said escapenient members being movable back and forth relatively to the other; finger keys; and means intermediate said finger keys and the said movable escaiiienient meinber to control its back and forth movements, said means comprising a` key controlled leier, paivls carried by said lever, means for rendering said paivls operative to move said movable escapeinent member back and forth at successive key operations, each key operation moving said movable escapenient niember in but one direction, and an actuating device adapted to be connected to said lever at one side or the other of the pivot thereof.

36. In a typewriting machine, the combination of a carriage; coperating escapeiiient members; a rocker for one of said members; finger keys; and intermediate controlling means between said finger keys and rocker for moving the latter back and forth, said intermediate means comprising pawls that are operative alternately on the rocker at successive key operations to move it back and forth, and means for determining Whether said paivls shall be operative on the rocker at the up stroke or at the down l nately engage said engaging member at the stroke of each key.

3T. In a typewriting machine, the combination of a power driven carriage; cooperating escapement members therefor, one of said escapeinent members being movable back and forth relatively to the other; finger keys; and means intermediate said finger keys and the said movable escapement inember to control its back and forth movements, said means comprising a lever of the first order, pawls carried by said lever on opposite sides of the fulcrnm thereof' and operative alternately at successive key operations, an actuating link, and means for connecting said link with said lever at one side or the other of the pivot thereof.

38. In a` typevvriting machine, the combination of a carriage; cooperating escapement members; a rocker for one of said members; finger keys; and intermediate controlling means between said finger keys and rocker for moving the latter back and forth, said intermediate means comprising a lever of the first order controlled by said finger keys, pawls carried by said lever at opposite sides of its fulcriim, means connected With. said rocker and which is engaged by each of said pawls in its movement in biit one direction. an actuating lilik, and means for connecting said link to said lever at one side or the other of the pivot thereof and thus determine Whether the paivls shall be connected with and actnate the rocker at the down stroke or at the np stroke of each key.

39. In a typeivriting machine, the combination of a power driven carriage; escapement mechanism therefor; finger keys; and actuating dconnections between said finger keys and escapement mechanism, said connections comprising an engaging member, tivo pavvls, means for alternately engaging said paivls with said engaging member at successive key operations, means for preventing the engagement of one paivl with said engaging member when the other pawl is in engagement therewith, and means for determining Whether said paivls shall alterdown stroke or at the up stroke of each key. Signed at the borough of Manhattan, city of New York, in the county of New York, and State of New York, this 9th (lay of Nov. A. I). 1910.

CHARLES H. SHEPARD.

Witnesses:

M. F. HANNWEBER, CHARLES E. SMITH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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