US1012943A - Type-writing machine. - Google Patents

Description

T. WALDHEIM.

TYPE WRITING MACHINE.

APPLICATION FILED NOV. 14, 1910.

2 SHB-ETSSHEET 1.

L1 H5 'ATTRNEY Patented Dec. 26, 1 911.

J. WALDHEIM.

TYPE )IVRITING- MACHINE. APPLICATION FILED M0114, 1910.

L1%%& Patented Dec.26,1911.

2 SHEETSSHEET 2.

fla ATTORNEY UNITED TAWENT orrion .romv wALnHmM, or NEWARK, NEW JERS Y, As'srenon'ro UNIONTYPEWQITEB COMPANY,- or 11.1011, NEW YORK, A conroaa'rron or NEW iron c TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented Dec. 26,1911.

Application filed November 14, 1910. Serial No. 592,218.

To all whom it may concern:

Be it known that I, JOHN WALDHEIM, a citizen of the United States, and resident of Newark, in the county of Essex and State of New Jersey, have invented certain new H. Shepard Serial Nos. 591,679; 591,680 and This invention has some of the same general objects in view as the inventions disclosed in the said Shepard applications;

namely, -to provide an easily operated, .ef-

ficient and reliable escapement mechanism and one in which the wear of the escapement devices is greatly reduced; the construction in the p'resentinstance being such that each complete operation of a finger key moves the 17.. The carnage comprises front and rear dog rocker in but one direction.

A further object of the invention is to provide simple and eflicient adjustin mean by which the timing of the F let-ofi' of the carriage can'be' nicely regulated.

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 andparticularly V pointed out in the appended claims.

embodying my invention. Fig. 2 is a diaby the key lever by which the universal barthesame'showingtheparts disposed in dif- .of the same with the grammatic' side elevation with parts in section, shovivgng one of the. key levers, the

double on versal bar and the means carried is actuated. Figs. '3 and 4 are like views of ferent positions. Fig. 5 is a detail rear elevation, with parts in section, of the escape ment mechanism. '6 is a side elevation arts in section. Fig.

7 is a fragmentary iagrammatic view of the feed dog and escapement wheels. Fig. 8

is a rear elevation, with parts in. section,

showing "a modified fornn of, escapement mechanism. Fig. 9 is a side elevation of'thc same'with parts in section.

I have shown my invention embodied in the present instance in a No. 10 Remington machine, althou h only a conventionalrepresentation of tie carriage appears. in t e drawings. It should be understood, however, that the invention may be embodied in various styles'of typewriting machine.

The frame of the machine comprises a base 1, corner posts 2 and a top plate 3. Key levers 4 are fulcrumed at their rear ends on a fulcrum bar 5 and are each, provided -'ith. a finger key 6 and areturnjmli spring 7; Each key lever is connected to an upwardly extending link 8, connected at its upperend to a sub-lever 9, pivoted at 10 to a hanger 11. The rear end of each sub-lever9 is connected to a link 12 which in turn'is con-" 'nected at its rear end to a type bar' l3 pivoted at 14 to a hanger 15. The type bars are segmentally arranged to strike upwaidly and rearwardly against the front face of a cylindrical platen 16 carried by a carriage oppositely grooved guide rails 18 which receive anti-friction balls or rollers 19, which rollers are. likewise received in op ositely grooved fixed guide rails 20, securecfto upwardly extending lugs 21 on the top plate of the machine. The carriage is thus mounted for movement from side to side of the machine'over, the top plate, the carriage being moved from right to left by the usual spring drum- 22, shown in dotted lines because it is located onthis side of the plane on whiah the section is taken in Fig. 1. Upwardly extending lugs 23 .project from the rear of the carriage near the 'ends thereof. Rearwardly projecting arms 24 are pivoted at 25 tothe lugs-23 and these arms are connected at their rear ends to a feed rack 26, which meshes with a feed pinion 27, fixed to the forward end of the shaft 2-3, mounted to turn in a bearing 29, fixed t-o ,the top plate o'f the machine. The tear'endportion of'the shaft 28- extends beyond the bearing 29 and has a collar 30 secured thereto by a set screw' 31. Projections. 32 extend rearwardlyfrom said collar parallel with the axis 1 of the escapement- Wheel shaft 28.

These-projections 32 extend into correspondin'gslots 33'in' the hub of an escapement rack or wheel 31.

. which the threaded sleeve may be turned, as

escapemenlt wheel ,doubl understood 'that the collar 30 is fixed to the regulate the timing of the let-off as will hereinafter more clearly appear.

A single feed dog 46 is pivoted at 47 to a dog rocker 48. The dog 46 is received in a slot in thedog rocker and the tail 49 of the dog bears against the body portion of the dog rocker to limit the movement of the dog in one direction. A coiled expansion spring 50 is received in a recess in the dog rocker and bears at its upper end against the feed dog to the right. of the pivot 47, as the parts are shown in Fig. 5. The pressure of the spring 50 is thus exerted to normally main tain the feed dog 46 in the elevated position and in the path of the teeth on the escapement wheel which is in the plane-of the feed dog. The dog'rocker 48 has a rock shaft 51 mounted at its ends on coned pivot screws 52, received in tapped openings in lugs 53, which latter project rearwardly from a bracket plate the machine downwardly extending arm 55 is apertured to receive the rock shaft 51 of the dog rocker. The arm 55 is adapted to receive .a pivotal adjustment around the rock shaft 51 by means of an adjusting device which comprises an eccentric 56, the bearing spindle 57 of which is adapted to turn in a bearing portion 58 on the dog rocker 4-8. The finger piece From an inspection of Fig. 6 it will be seen that the shaft 28 has an exteriorly threaded hollow spindle or sleeve 28 loosely mounted thereon; the threads 35 and 36 on the sleeve extending in opposite directions to constitute right and left-hand screw threads. The hub of the escapement wheel 34 is interiorly threaded to cooperate with the screw threads 36 whereas a corresponding hub 37 on a second escapement wheel 38 is interiorly threaded for coiiperation with the threads 35. The threaded sleeve 28 is extended rearwardly beyond the threads 35 to form alpearing portion 39 on which a sleeve 40 is mounted. This sleeve is knurled on its periphery to form a finger piece by will hereinafter more clearly appear. The sleeve 40 is provided with an inwardly extending pin 41 which is received in a splined groove 42 in the extension 39 of the threaded sleeve. The splined connection between the finger piece 40 and the threaded sleeve 28* is merely to facilitate an assembling or dismantling of the parts. Thus a collar 43 is fixed to the rear end portion of the shaft 28 by a set screw 44. WVhen this collar is detached the finger piece 40 may be removed to enable the sleeve or hollow-spindle 28 together with the escapement wheels 38 and 34 to be removed from the shaft 28. The wheels may then betaken off the sleeve 28"' by threading them ofi' said sleeve in opposite. directions, Screws 45 are received in and pass freely through openings in the 38, and are adapted to be received inf threaded openings in the escape ment wheel 34 when the parts are positioned as represe ted in Fig. 5, so as to fix the escapement wheels, or two members of the e escap'ement wheel, to rotate together. i

From the fo eigoing description it will be spindle 57 is provided with a 59, in the nature of a knurled head, by which the spindle and the eccentric 56 may be turned. The eccentric isreceived in a rectangular opening 60 in the arm 55, the width of the opening corresponding to the diameter of the eccentric 56. By turning the finger piece 59 the dog rocker may be turned relatively to the arm 55 either to the right or left, as the parts are shown in Fig. 6, thus affording a relative adjustment between the dog rocker and the depending arm 55. The lower end of the arm 55 is connected to a link 61 which has its forward end pivshaft 28, and that the escapement wheel 34 is fixed, through the connection 32-33, to rotate witlrsaid collar, and the escapement wheel 38 being connected to the escapement wheel'34, all of these parts will rotate together. The teeth of the escapement Wheels are spaced apart, and so disposed, that a movement of the double escapemeut wheel 34-38 from a tooth of one of said wheels to the next on-coming tooth of the other wheel, affords a full letter space movement of the carriage. It will also be understood from the foregoing description that a turuing of the finger piece 40, when the screws 45 are loosened, will effect a relative adjustment between said escapement wheels toward and away from each other. After a relative adjustment of the wheels has been 45 should be tightened tb arm 63, fixed to a rock shaft 64. This rock shaft is mounted to turn in suitable bearings in the base of the machine and is provided with forwardly projecting crank arms 65 near the ends of the'roek shaft. To these arms is fixed a universal bar 66, which extends transversely of the machine beneath the system of key levers 4. Crank arms 67, corresponding to the crank arms 65, project rearwardly from the rock shaft and support a universal bar 68 which likewise extends beneath the system of key levers 4/ The two universal bars 66 and 68 are thus connected to the rock shaft 64. to move in unison but to move in opposite directions. Fr m certain aspects of the invention thercfore the two connected universal bars may be regarded as a double universal bar. From other aspects the universal bars 66 and 68 may effected the screws bind the wheels together. The purpose of this relative adjustment of the wheels is to oted at 62 to an upwardly extending crank be regarded as two universal s.

bars, each operated by its own independent mechanism, as will hereinafter more clearly appear. Screw stops 69 are received in tapped openings in lugs 70 on the base of the ma chine and are adapted to cooperate with and limit the downward movement of the uniyersal bar 66, whereas corresponding screw stops 71 are adapted to cooperate with and limit the downward movement of the universal bar (58. ,Each of the key levers 4 nately actuated at successive down strokes of the key. In the present instance these actuating devices comprise pawls 7 2 and 7 3, pivoted at 74 to the associated key lever at opposite sides of the rock shaft 64; two of such pawls being carried by each of the key lev'ers' A leaf spring 75 has central depending ears 76 by which the spring may i be connected by a rivet 77 to a key lever.

The opposite free end portions of each leaf spring are adapted to bear on thetop flat .ends 78 of the pawls, and tend to maintain the pawls fixed. relatively to the key lever, to which they are'connect'ed,-in the positions shown in Fig. 1. Each of lle pawls 72 and 73 is provided with an engaging notch 79 and an engaging face 80 for purposes which willhereinafter more clearly appear. Each of the universal bars 66 and 68 is preferably formedwith a sharp upper engaging edge 81 for engagement in the notches 79 of the pawls 73- and.-72 respectively, on the differentkey levers, whereas the engaging face or projection 80 on each of the pawls is adapted to co-act with the associated universal bar, under certain conditions, as indicated in Fig. 2 for example.

It will be understood that the dog rocker and the entire train of connections from the-feed dog to the universal bars is free from spring pressure, or from a spring pressure which tends to move the parts from the positio'nsto' which they may be moved under control of the finger keys.

In other words, the parts are free to remain in the positions to which they are moved by the finger keys at each-operation thereof,'and in the actuation of the esc'apement -mechanism it is unnecessary to overcome the power of returning springs, sueh asfi are ordinarily used to return thedog rocker, universal bar, etc., to normal p0S1tlOI1;' the 'only returning springs employed in the present instance being the returning springs 7. for, the key levers themselves and the" light springs 75 for the pawls 72 and 73. Moreover, it willbe understood that a full lflter'space movement of the carriage is effected at each back or forth movement of the dog'roeker, or at each movement ofthe feed dog from one escapement wheel to the other transversely of the plane of the escapement wheels, and by a movement of the feed dog in but one direction. 1

Referring to Fig. 1 it will be seen that a depression of any of the key levers 4 is effective to carry the associated pawl 72 carried thereby into engagement with the universal bar 68. A continued downward movement of the finger key is effective to depress the universal bar to the position shown in Fig. 2, thereby rocking the rock shaft 64 and crank arm 63, efiecting a rearward longitudinal movement of the link 61 'to turn the dog rocker on its rockshaft,

thus moving the feed dog forwardly out-of engagement with the rear escap'e'ment wheel 38 and carrying it into the patlrof'the next oncoming tooth of the escapement wheel 34.

tive to elevate the universal bar 66 'to a position where any of the pawls 73 will cooperate therewith at the neXt down stroke of a key. When a key resumes its normal position from that shown in Fig. 2, after the first depression, the parts will be disposed as indicated in Fig. 3; the key having returned independently of the universal bars and the parts controlled'thereby- The next down stroke of a key is eflective to carry the pawl 73, carried by the associated .key lever, into engagement with the 'universal bar 66, and a continued "downward movement of the key lever depresses said universal bar 66 to theposition shown in Fig. 4:; at the same time elevating the universal bar 68 into operative position. This last mentioned down stroke of a key is effective to move the dog ,rockerto effect a rearward movement of a feed dog, back to tl e position shown in Fig. 1, and toafiord a full letter space movement of the carriage. I It will be understood that'the universal bars and the constantly maintained connections between said universal bars andthe' movable feed element or member, which in the present instance is a feed dog'46, are normally disconnected from'the key levers and'that a depression of a key lever-is effective to move these parts-in 'one direction and then in the opposite direction at successive key strokes; that the only parts which need to be restored to normal position after each depression ofa key are the key levers themselves and the actuating de- ['1 vices or pawls carried by them, so that these 'last mentioned parts may be quickly re stored to normal position, enhancing the rapidity of operation; that the act of actuating the escapement mechanism to afford a letter space feed movement of the carriage is effective to set the parts, or certain of the parts, for the next operation, thereby rendering the escapement rapid in operation; that the first part of the stroke of each finger key is effected independently of the cscapement mechanism, or the parts which constitute the train-of connections from the universal bar to the movable feed dog, thus rendering the touch on thekeyslight at I, the first part of the stroke; that thereare no such returning or restoringsprings to overcome during the depression ofa key as are ordinarily employed in escape nents,

which provides a light, easily operated escapement; that there is no backward and forward movement of the dog rocker and the parts connected therewith at each complete operation of a key but only a movement of the parts in one dlIGCf/lOIL SO that there is no snapping of the parts back to normal position under spring pressure or the noise that would result therefrom; that a depression of any finger key is effective to positively move the parts in one direction to effect a letter feed movement of the carriage and that wear on the parts is therefore reduced one-half; that the up-stroke of a key is ineffective to move theuniversal bars, and the parts controlled thereby, which have been actuated by the down stroke of the key, so that any trembling movement of the finger key at the last portion ofthe key depression is ineffective to vibrate the dog rocker, which ordinarily would result in the carriage skipping or feeding improperly; and th: therefore a positively acting, simple, efficient, light, rapid and reliable escapement mechanism is provided and one in which the wear on the parts is reduced onehalf and in which the noise due to actuating the escapement is greatly reduced, if not entirely eliminated.

In order to regulate the timingof the let-off of the carriage at each actuation of a key, it is simply necessary to vary the overlap of the feed dog 46 on the teeth of the escapement wheels, by effecting arelative adjustment between the escapement wheels toward and. away from each other in the manner hereinbefore described. The parts as shown in Fig. l are represented as they appear when the eseapement wheels are adjusted farthest from each other to afford the quickest let-off of the carriage. This adjustment of the parts enables the carriage to be let off when the type bar reaches the position indicated in dotted lines in Fig. l. The maximum adjustment of the escapement wheels toward each other is represented in the diagrammatic View shown in Fig. 7. By the arrangement of the parts shown in Fig. 7 the let-off is not effected until the type bar is close to the platen. It

the dog from the escapement wheel escapement wheel 38, and that this 1s true and of its received between the will be understood that by adjusting the escapement wheels axially in the manner described toward and away from each other, the extent of overlap of the feed dog on the teeth of both escapement wheels is the same so that the feed effected by a movement of the dog from, say, the escapement wheel 38 to the escapement wheel 34, is identically the same as that effected by a movement of 34 to the whatever the relative adjustment may be between the escapement wheels. This is clearly indicated by the diagrammatic View shown in Fig. 7. In this view the escapement wheels are shown in full lines at the extreme adjustment in one direction and in dotted lines at the extreme adjustment in the opposite direction. It will be understood from an inspection of the feed dogfl-ti movement from the .full to the dotted line position shown in this figure, that the extent of overlap between said dog and the teeth of the escapement wheels is the same for both wheels no matter what the adjustment of said wheels may be.

the dog rocker may be adjusted relatively to the arm 55 is to regulate the position of the feed dog with reference to the escapement wheels after the screw stops 69 and 71 have been properly adjusted to regulate the positions and throw of the universal bars and connections controlled thereby.

For the purpose of my present invention it is immaterial from certain aspects whether a single dog be en'i 'ilo'yed to cooperate with two escapement racks or wheels, or whether a single escapement rack or wheel be provided to cooperate with two feed dogs. In Figs. 8 and 9 I have shown a modified form of construction in which a single escapcment wheel 82 is provided, and in which the eeth are so spaced and the parts so arranged that a movementof the wheel corresponding to one-half the distance'from one tooth to the next of the wheel, affords a full letter space movement of the carriage, as will hereinafter appear. This escapcment wheel is or may be operatively ceniwcted to the escapement wheel shaft 28 by the usual pawl 83 and ratchet 84. to afford a movement of the carriage from left to right independently of the escapement. wheel. The dog rocker 489 is bifurcated at its upper end to provide two arms 85. Two feed dogs 86 and 87 are arms 85; each dog being threaded on an adjusting member 88 which is in the nature of a spindle pivoted on trunnions 89 in bearing openings in the arms 85. The adjusting memher 88 is provided with right and lefthand screw threads 90 and 91 which eooperate withthe dogs 87 and 86 respectively; said dogs being interiorly ded in the j e purpose of the adjusting means by; which body portions thereof for cooperation with the right and left-hand threads of the member 88. One of the trunnions 89 is extended beyond the associated arm 85 and is provided with a screw driver nick 92, which affords a turning movement of the member 88 to effect a relative adjustment between the feed dogs toward and away from each other transversely-of the plane of the escapement wheel. From an inspection of Fig. 8 it will .be observed that the upwardly extending .engaging projections of the feed dogs 86 'move the dog rocker in the opposite di'rec tion, and that each of these movements of the dog rocker is effective to move one of the dogs out of cooperation with the escapement wheel and to bring the other dog into the path of the next on-coming tooth of the wheel to afford a full letter space movement of the carriage. The effect of adjusting the two feed dogs 86 and 87 toward and away from each other is the same'exactly as effecting a relative adjustment of the escape ment wheels toward and away from each other in the previously described construction.

One of the arms 85 hereinbefore referred to is preferably formed as a separate plate 93 secured to the dog rocker by a screw 94. This is'to enable the parts to be readily assembled or'taken down. 1

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

1. In a typewriting machine, the combination of a power driven'carriage; cooperative escapement members one of which is movable back and forth transversely of the other;'finger keys; and means intermediate said finger keys and said movable escape ment member for moving the latter either back or forth in one direction at each complete operation of a key, said means comprising two universal bars, and actuating means cooperative with said universal bars.

2. In a typewriting machine, the combination of a power driven carriage; cooperative escapement members one of which is movable back and forth transversely of the 4 other; finger keys; and means intermediate said finger keys and said movable escapementinember for moving the latter either p l back or forth in one direction at each complete operation of a key, said means comescapement members one of which is'movable back .and forth transversely of the other; finger keys; and means intermediate saidfinger keys and said movable escapement member for moving the latter either back or forth in one direction at each complete operation of a key, said means comprising two universal bars, a singlecarrier for said bars, said carrier being pivoted intermediate the bars, and means cooperative alternately with said bars to actuate them.

4. In a typewriting machine, the combination of a power driven carriage; cooperative es'capement members one of which is movable back and forth transversely of the other; finger keys; and means intermediate said finger keys and said movable'escapement member for moving the latter either back or forth in one directionat each complete operation of a key, said 'means comprising two universal bars, and means by which said finger keys are rendered operative alternately on first one and then the other of said universal bars, the actuation of one bar by a finger key rendering the other universal bar operative at the next key operation. I i

5. In a typewriting machine, the combination of a power driven carriage; cooperative escapement members one of which is movable back and forth transversely of the other; finger keys; and means intermediate said finger keys and said movable escapemcnt member for moving the latter either back or forth in one direction at each complete operation of a key, said means comprising two universal bars, key controlled means for actuating said universal bars, and means by which the actuation of one of said universal bars is effective to bring the other universal bar into cooperative relation with gaid key controlled actuating means there- 6. In a typewriting machine,the combinaf tion of a power driven carriage; cooperative escapement members one of which is movable back and forth transversely of the other; finger keys; and means intermediate said finger keys and said movable escapement member for moving the latter eitherback or forth in one direction at each com plete operation of a key, said means comprising two universal bars, and means by; which one universal bar is elevated when the other is depressed.

7 In a typewriting machine, the combination of a power driven carriage; cotiperative escapement members one of which is movable back and forth transversely of the plete operation of a key,

' first on one and .vices, one or more of said devices being controlled by each of said finger keys, and

' means which render said key actuated devices operative alternately first on one and then on the other of said universal bars at successive operations of said keys.

8. In a typewriting machine, the combination of a power driven carriage; cooperative escapement members one of which is movable back and forth transversely of the other; finger keys; and means intermediate said finger keys and said movable escapement member for moving the latter either back or forth in one direction at each comsaid means comprising two universal bars, levers with which said finger keys are connected, pawls carried by said levers, and means by which said pawls are rendered alternately operative then on the other of said universal bars.

9. In a typewriting machine, the combination of a power driven carriage; cooperative escapement members one of which is movable back and forth transversely of the other; finger keys; and means intermediate said finger keys and said movable escapementmember for moving the latter either back or forth in one direction at each complete operation of a key, said means comprising two universal bars, key levers which carry said finger keys, pawls which are carried by said key levers, springs which tend to maintain said pawls in fixed relation to the key levers which carry them, and means by which said pawls are rendered operative alternately first on one and then on the other of said universal bars.

10. In a typewriting machine, the combination of a power driven carriage; coiiperative escapement members one of which is movable back and forth transversely of the finger keys; and means intermediate other; said finger. keys and said movable escape ment member for moving the latter either back or forth in one direction at each complete operation of a key, said means com prising two universal bars, key levers which carry said finger keys, pawls which are carried by said key levers, springs which tend to maintain said pawls in a fixed relation to the key levers which carry them, and means for moving one universal bar into coilpera tive relation with a pawl on each key lever when the other universal bar is actuated.

11. In a typewriting machine, the combination of a power driven carriage; cob'pera tive escapement members one of which is movable back and forth transversely of the tuation of one other; finger keys; and means intermediate said finger keys and said movable escapement member for moving the latter either back or forth in one direction at each complete operation of'a ke said means comprising two universal bars, key controlled actuating devices, and means for swinging one universal bar into the path of the actuating devices when the other universal bar is swung out of the path of the actuating devices.

12. In a typewriting machine, the combination of a power driven carriage; cooperative escapement members one of which is movable back and forth transversely of the other; finger keys; and means intermediate said finger keys and said movable escapement member for moving the latter either back or forth, said means comprising two universal bars, and means for alternately actuating first one and then the other of said universal bars and by which each universal bar is moved only at a down stroke of a key.

13. In a typewriting machine, the combination of a power driven carriage; cotiperative escapement members one of which is movable back and forth transversely of the other; finger keys; and-rneans intermediate said finger keys and said movable escapement member for moving the latter either backer forth, said means comprising two universal bars, a single carrier for said bars, said carrier being pivoted intermediate said bars, and'means cooperative alternately with said universal bars at successive key opera tions.

14. In a typewriting' machine, the combination of a power driven carriage; cooperative escapementmembers oneof which is movable back and forth transversely of the tps" other; finger keys; and means intermediate said finger keys ment member for moving the latter either back or forth, said means comprising two universal bars, and means by which the acuniversal bar by a key operaand said movable escapetion is effective to render the other universal bar operative at the next key operation.

15. In a typewriting machine, the combination of a power driven carriage; cooperative escapement members one of which is movable back and forth transversely of the other; finger keys; and means'intermediate said finger keys and said movable escapement member for moving the latter either back or forth, said means comprising two universal bars, and means by which one universal bar is elevated when the other is depressed.

16. In a typewritingmachine,the combination of a power driven carriage; cooperative escapement members one of which is movable backand forth transversely of the other; finger keys; and means intermediate said finger keys and-said movable escapealternately first on one and then on the other of said universal bars at successiv operations o f said keys. I

17. In a typewriting machine, the combination of a power driven carriage; cooperative escapement members one of which is movable back and forth transversely of the -other;-finger keys; and means intermediate said finger keys and said movable escapement member for moving the latter either back or forth in one direction at each complete operation of a key, said means comprising universal bar mechanism, and .means controlled by said finger keys to movesa-id universal bar mechanism alternately first in one direction andthen in the opposite direction at successive key operations.

18. In a typewriting machine, the combination of finger keys; a power drivencarriage; escapement mechanism therefor, a universal bar; and means by which said universal bar is moved in but one direction at each complete operation of a finger key.

19. In a typewriting machine, the combi- I nation of finger keys; a power driven carriage; escapement mechanism therefor, a universal bar free from spring pressure, and key controlled means for movingsaid universal bar in opposite directions at successive key operations, each complete key operation moving the universal bar in but one direction. v

20. In a typewriting machine, the combination of finger keys; a power driven carriage; cooperative escapement devices, one of which is movable transversely of the other under control of said finger keys; and intermediate actuating connections between said finger keys and said movable escapement member, said connections including a universal bar, constantly maintained connections between said universal bar and said movable escapement member, and means by.

which the finger keys are rendered effective to move said universal bar alternately first in one direction and then in the opposite direction at successive key operations.

21. In a t/ypewriting machine, the combination of finger keys; a power driven carriage; cooperative escapement devices one of which is movable transversely of the other under control of said finger keys; and intermediate actuating connections between said finger keys and said movable escapement member, said connections including a universal bar free from spring pressure, constantly maintained connections between said universal bar and said movable escapement member, and means by which the finger keys are rendered effective at" the down stroke only to move said universal bar alternately first in one direction and then in the opposite direction at successive key operations.

' J 22. In a typewriting machine, the combination of finger keys; a power driven car rlage; cooperative escapement devices one of whlch is movable transversely of the other under control of said finger keys; and

intermediate actuating connections between said finger keys and said movable escapement member, said connections including a rocker, a universal bar, a constantly maintained connection bet-ween said universal bar and rocker, and means operative only at the down strokes of the keys for moving said universal bar first in one direction and then in the opposite direction at successive key operations, each key operationmoving the universal bar in but one direction.

23. In a typewriting machine, the combination of a power driven carriage; escapement mechanism; keylevers; and means controlled by the key levers for controlling said escapement mechanism, said means comprising two pawls carried by each of saidkey levers, .two universal bars, and means by which the ,two pawls on each key lever are rendered alternately operative on the. respective universal bars with which they cooperate. 1

24:. In a typewriting machine, the combination of a power driven carriage; escapement mechanism; key levers; and means controlled by the key levers for controlling said escapement mechanism, said means comprising two pawls carried byeach of said key levers, two universal bars, a rocker controlled thereby, and means by which the two pawls on each key lever are rendered alternately operative on the respective universal 'bars with which they cooperate, whereby .the rocker is alternately rocked first in one direction and then in the opposite direction at successive key depressions.

25. In a. typewriting machine, the combination ofapower driven carriage; escapement mechanism; key levers; and means controlled by the key levers for controlling said escapement mechanism, said means comprising two spring pressed pawls carried by each of said key levers, two, universal bars connected to move in unison but in opposite directions, a rocker controlled thereby and free from spring pressure, and means by which the two pawls on each key lever are rendered alternately operative on the respective universal bars'with which they cooperate.

26. 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 ail'ording a complete letter space movement of the carriage; finger keys; means intermediate said finger keys and dogs for effecting a movement of said feed dog alternately in one direction and then in the other at successive operations of the keys, each complete operation of a key effecting a movement of the dog in one direction, said means comprising two universal bars which are operated alternately at successive key operations.

27. In a. typewriting machine, the combination of a carriage; escapement mechanism therefor comprising a feed rack and a dog, one of said 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 effecting a movement of said movable member first in one direction and then in the opposite direction, said means comprising a universal bar, andmeans by which said universal bar is moved in but one direction at each complete actuation of a key 28. In a typewriting machine, the combination of a carriage; escapement mechanism therefor comprising two cotiperative escapement members, and a rocker which carries one of said. escapement members: finger keys; mcansintermediate said finger keys and rocker for moving the rocker al ternat'ely first in one direction and then in the other at successive operations of said finger keys; a complete operation of each finger key effecting only a single movement of the rocker in one direction, said means comprising a universal bar which is moved only at the down strokes of the keys.

29. In a typewriting machine, the combination of a power driven carriage; escapement mechanism therefor comprising two cooperative escapcment 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 escapcmcnt member alternately first to one of said positions and then to the other, said means comprising a universal bar free to remain in the position to which it may be moved at each key depression.

30. In a typewriting machine, the combination of a power driven carriage; es-

capement mechanism therefor; finger keys;

means controlled by said finger keys for controlling a member of said escapement mechanism, said controlling means comprising two sets of key operated actuating devices that move in the same direction at the down strokes of the keys, two universal bars, and means by which the universal bars are brought alternately into cotiperative relation with the associated set of actuating devices.

y 31. In a typewriting machine, the combina tion of finger keys; a power driven carriage; rooperative escapcment devices, one of .vhiclris movable transversely of the other under control of the keys; and key controlled means for controlling said movable eseapement.members, said means comprising two actuating devices movable in the same direction at each operation of a key, and means cooperative alternately with first one and then the other of said actuating devices to move the said movable escapement member.

32. 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 print-- ing keys and. dog rocker for moving the lat ter in but one of said back and forth directions at each complete operation of a key, said means comprising a universal bar, and means by which the universal bar is moved in but one direction at each complete operation of a key.

In a typewriting machine, the combination of a power driven carriage; two cscapement wheels; a single feed (log cooperativetherewith; a dog rocker which is free to be moved back and forth and to remain in eithenof the hack and forth post-- tions 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, said means comprising two universal bars, and means by which one universal bar is moved into operative position by the movement of the other universal bar out of operative position.

34. In a typewriting machine, the combination of a power driven carriage; two

.escapement wheels; a single feed dog comeans comprising two universal bars and means' whereby successive key strokes are operative to alternately move first one and then the other of said universal bars.

35. In a typewriting machine, the combination of a power driven carriage; two escapement "wheels which are fixed to turn a ate an which afford alun letter Lora n ta 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 coiiperates 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 removing it"to but one of said back and forth I positions 'at each-complete operation of a printing key, said movin'gmeans including connected to turn together, a dog rocker; a I single dog'carri'ed by said dog rocker and. affording a full letter space movement of the carriage at each back or forth movement of two universal bars,'--an dymeans by which said universal bars are alternately operated upon at successive key-' operations.

36. In a typewriting machine, the combination of a power driven carriage; two escapement wheels therefor, said wheels being the dog, rocker; finger keys; means controlled by..-said finger keys for movingsaid rlog rocker, said means including universal bar mechanism, and means by which the umversal bar mechanism 15 moved in but 'one direction at each complete operation of a key and a corresponding movement is transmitted to the dog rocker.

' 37 In a typewriting machine, the combi-' nation of a carriage; feed mechanism therefor including two cooperative members, one of which comprises two elements that cooperate alternately with the other member to afford a feed of the carriage; and means for effecting an adjustment of both said elements toward and away from each other.

38. In a typewriting machine, the combination of a carriage; feed mechanism therefor including two cooperative members, one of which comprises two elements that cooperate alternately with the other member to afford a feed of the carriage; finger keys; means under control of the finger keys for moving one of said escapement members transversely of the other; and means for effecting an adjustment of both said elements toward and away from each other.

39. In a typewriting machine, the combination of a carriage; carriage feed mechanism including two feed members carried by the same part of the machine and arranged side by side; and means for effecting an adjustment of said members toward or away from each other in substantially parallcl planes.

- 40. In a typcwriting machine. the combinat on of a carriage; carriage feed mecha- 'nisni including two parallel fern/racks; and

-mc ans for efl'ecting a relativeadj ustment of said racks toward or away from each other in parallel planes.-

' Al in a typewnting machine. the combi-. nation of a carriage; carriage feed mechaj 111S1Il including two parallel escapement wheels fixed to turn together ;'.and means for .eltecting an adjustment of said cscapement wheels toward and away from each other in parallel planes.

1 ea. In a typewrlting machine, the combi nation of a power driven carriage; escapement mechanism therefor including two parallel e'scapement wheels fixed to rotate together; and a single dog cooperative with said escapement wheels to ailord a full letter space movement of the carriage at each movement of the dog from engagement with a tooth of one escapement wheel into engagement with the next teeth of the other escapement wheel; and means for efi'ecting an adjustment of said escapement wheels to ward and away from each other.

43. In a typewriting machine, the comhi nation of a power driven carriage; es-' capement mechanism therefor comprising two esca ement wheels; 9. single dog coiiperative t ierowith; and means for effecting an ad ustment of said escapement wheels toward and away from each'other, said ad justing means comprising a right and lefthand screw. 44. In a typewriting machine, the combination of a carriage; feed mechanism therefor comprising two feed devices arranged side by side; and an adjustable member on which said devices are mounted and by which they may be simultaneously adjusted toward and away from each other to diilerent set positions.

45. In a typewriting machine, the combination of a carriage; eed mechanism therefor comprising two feed devices arranged side by side; and an adjustable spindle having right and left-hand screw threads with which said devices cooperate and by which they may be simultaneously adjusted toward and away from each other to difierent set positions.

4:6. In a typewriting machine, the combination of a carriage; and feed mechanism therefor including a pivoted rocker having an arm adjustably fixed thereto for connection with the means for actuating said rocker, and a cam for effecting an adjustment of said rocker relatively to the. arm.

47. In a typewriting machine, the combination of a carriage; and escapement mech anism therefor including a rocker, a shaft for said rocker, an actuating arm loose upon said shaft, and adjustable means for connecting the actuating arm to the rocker. $8. In a typewrit ng machine, the combination of a key 18. or; two pawls carriedby said key lever; spring means for maintaining the said pawls normally fixed with refment devices, one of which cooperates with the other two to control the movement of j the carriage at the operation of the finger keys; and means for effecting an adjustment of said two escapement devices toward and away from each other to regulate the extent of overlapping engagement between said toothed escapement member.

50. In a typewriting machine, the combination of finger keys; a power driven carriage; escapement mechanism therefor comprising three cooperating toothed escapement devices, one of which cooperates with the other two to control the movement of the carriage at the operation of the finger keys; and means for effecting a simultaneous adjustment of said two escapement devices toward and away from each other to equal extents to regulate the extent of overlapping engagement between said toothed escapement members and to assure the same extent of overlap betweeir the single toothed escapement device and each of the other two devices.

51. In a typewr'iting machine, the combination of finger-keys; a power driven carriage; escapement mechanism therefor comprising a toothed double escapement device, and a cooperative toothed single escapement device; and means for effecting a corresponding adjustment of both members of said double escapement device toward and away from each other and for retaining the said members in; the relative positions to which they are adjusted, whereby the overlapping engagement between both members of the double escapement devices an'd said, single device may be varied and th e varigw tion in overlap efi ccted by each adjustment of said adjustable means will be the same on both members of said double escapement device. 52. In a typewriting machine, thecombr nation of, finger keys; a power driven carriage; escapement mechanism therefor comprising cooperating toothed escapement devices two of which are engaged by a third device, and adjustable means operable at will for effecting a variation in the overlapping engagement between said members and by which. any variation in the overlap between the said third device and one of -the said two devices produces :1. corresponding overlap between the said third device and the other of said two devices.

53. In a typewriting machine, the combination of finger keys; a power driven carriage; escape'ment mechanism therefor con1- prising cooperating toothed escapcment devices two of which are alternately engaged by a third device at successive key depressions to afford a full letter space movement of the carriage at each complete operation of a key; and adjustable means operable at will. for eifecting a variation in the overlapping engagement between said members and by which any variation in the overlap between the said third device and one of the said two devices produces a corresponding overlap between the said third device and the other of said two devices.

Signed at the borough of Manhattan, city of New York, in the county of New York, and State of New York, this 12th day of November, A. I). 1910. 1

JOHN \VALDIIEIM.

\Vit-nesses CHARLES E. SMrri-I, E. M. IVELLs.

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