US1883700A - Typewriting machine - Google Patents

Description

@ct. 18,1932; 5, G 50mg 1,813,700

TYPEWRITJQNG MACHINE Filed May 10, 1950 3 Sheets-Sheet l WITNESSES \NvENT oR 8y 2m 4m ATTORNEY cii. 18 1932. v G, GQENG 1,883,700

TYPEWRITING MACHINE" Filed May 10, 1930 3 Sheets-Sheet 2 WTNESSES iNVENTOR v VJ 2 V I, v J I ATTORNEY Oct. 18, 1932. e. e. GOENG TYPEWRITING MACIIIIINE Filed May 10, 1930 3 Sheets-Sheet 5 )NVENTOR WITNESSES ATTORNEY Patented Oct. 18,1932,

UNITE-D ,srArus PATENT OFFICE GEORGE e. GoING,oR (ILENBRoox; STAMFORD, CONNECTICUT, ASSIGNOR To REMINGTON TYPEWBITER COMPANY, or ILIoN, NEW YORK, A CORPORATION or NEW YORK 'T'YPNWRITIN'G MACHINE Application filed May 10,1930. Serial No. 451,4oo.

My invention relates to'typewriting machines and more particularly to means for actuating and controlling the. printing instrumentalities thereof.

One of the objects of my invention, generally stated, is to provide improved and highly effective yet comparatively simple means of the character specified.

A further object of my invention is to provide means of the character referred to by which the printing instrumentalities may be applied with a substantially noiseless pressure imprint, as distinguished from a hammer blow or impact.

A still further object of the invention is to a provide an improved substantially noiseless construction of the character mentioned in which the printing instrumentalities are actuated by power driven means, and in accordance with the manipulation of keys in the key board of the machine.

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 set forth in the following description and particularly pointed out in the appended claims. a In the accompanying drawings wherein like reference characters indicate corresponding parts in the different views 1 Fig. 1 is a fragmentary, fore and aft vertical, central, sectional view showing a portion of a typewriting machine constructed in accordance with my invention. a

Fig. 2 is a fragmentary top plan View of the same.

Figs. 3, 4, 5 and 6 are detail side views of parts of a type action, showing the elements relatively disposed as they appear at different points in their complete cycle of movement.

Figs. 7, 8 and 9 are detail perspective views of different parts of a type, action, shown separated. I

I have shown my invention, in the present 7 instance, embodied in a front stroke pivoted companion type bar to the platen or the paper thereon with a substantially noiseless pressure imprint. While such a structure represents the preferred form of embodiment of 'my invention it should be understood that a toggle of the character specified constitutes an important factor of the present invention irrespective of the character of the printing instruguide slots 3 in a type bar segment 4. The

pivot wire 2 is in a plane at substantially right angles to a plane extending tangentially of the cylindrical platen (diagrammats ically shown at 5 in Fig. 1) at the printing line. By this arrangement I am enabled to provide-type bars devoid of lateral bendsat the type carrying ends thereof. Consequently I am enabled to provide a full complement of forty-two type bars in a comparativelysmall segment and amenabled to bring the type bars nearer to the printing'point in their position of rest and move them a smaller distance in their operation. This is an important factor, especially in a so-called noiseless typewriter. 1 I

In the present instance each type bar is shown provided with two types 1 and 1", a relative ease shifting movement between the type bars and platen being contemplated to provide for writing eighty-four characters. The platen 5 is shiftable in the present instance.

The type bar segment may be detachably secured at its ends by screws 6 to. the side plates 7 of the frame of the machine.

Parts of the actuating means for each type bar are mounted on a bracket plate 8 detachably secured by screws 9, or other suitable means, to a segment 10. The segment 10 is detachably secured by screws 1.1 to the side plates 7 and constitutes part'of the frame of the machine. Each bracket plate is seated in a recess 12 in the'segment 10 and also in a recess 13 in a second segment 14 detachably secured to the side plates 7 by screws 15. Each bracket plate 8 may also be recessed at 16 to receive a flange 17 on the segment 14.

It will be seen that by the means described the bracket plates 8 are detachably mounted in the frame of the machine and are maintained in planes that converge slightly to the rear of the printing point, each bracket plate being in a plane to one side of but close to the plane of movement of the associated type bar.

The actuating means for each type bar carried by the associated bracket plate 8 comprise a pair of toggle members 18 and 19 pivoted together at their adjacent ends, at 20. The forward end of the toggle link or member 18 ispivoted at 21 to the associated type bar immediately in the rear of the type block 22 thereon. The toggle member 19 is in the nature of a crank arm pivoted at its anchored end on the associated bracket plate 8, as indicated at 23. The element 19 of the toggle is thus mounted to receive an intermittent anti-clockwise movement, as the parts are viewed in Figs. 1 and 3 to 6 inclusive. The result of this movement is to first straighten the toggles to the substantially horizontal position as represented in dotted lines in Fig.

1, thereby swinging the associated type bar to the printing position. As the type bar approaches the printing point its movement will beslowed up due to the approach of the toggle to its straightened condition. At or about the time the toggle reaches. such straightened condition the type will reach the platen or the paper thereon, resulting in a substantially noiseless pressure imprint, as distinguished from a noisy hammer blow.

I The crank arm 19 continues its motion un- Fig. 1, the toggle member 19 completing its rotatlve movement through substantially 360 to the full line normal position in Fig. 1 from which it was moved at the beginning of the printing movement of the type bar. Each complete cycle of movement of the toggle member 19 is always in the same direction, one such complete cycle of movement being efiected at each actuation of a printing key, as will hereinafter more clearly appear.

lit will be seen that the anchored end 23 of each toggle is in front of the printing point and that a horizontal line passing through the joint 23, 20 and 21 of'the expanded toggle is close to the print point, an arrangement which is very advantageous in producing an efiective imprint.

From certain aspects of my invention any suitable means may be provided for intermittently and selectively efi'ecting a rotative movement of each of the toggle members 19. In the present instance I have disclosed effective means for this purpose which will now be described.

Each toggle member 19 at its pivotally supported end is provided with a bushing 24 (see Fig. 7) through which the companion pivot 23 passes. Such bushing is in the natture of a hub formed on a pinion 25. The hub after passing through an opening pierced in the member 19 is riveted at its free end to fixedly connect the pinion of said member.

An actuating member, rack or driving member or device 26 is provided for each type bar. Each of such devices is provided at its upper end with segmentally arranged rack teeth 27 adapted to engage and rotate the companion pinion 25 and the toggle arm 19 to which it is connected. Each actuating member 26 ismounted for an up and down substantially rectilinear sliding movement respectively, from the Fig. 3 to the Fig. 4; position and from the Fig. 5 to the Fig. 6 position, and also for oscillating pivotal movement back and forth respectively from the Fig. 4 t0 the Fig. 5 position and from the Fig. 5 to the Fig. 3 position.

The sliding and pivotal movements of each actuating member are afi'orded by a pin and slot mounting to be described and are produced in the following manner. Extending laterally from each bracket plate 8 is a headed pivot pin 28, the stem of which passes through an upright, elongated bearing slot 29 in the companion actuating member 26. A stop pin 30 projects from the side of each plate 8 and against which a straight contact edge 31 on the associated actuating member 26 normally bears. Each member 26 is normally held in this position, as shown in Fig. 3, by a contractile returning spring 32 off-set from the pivotal center 28 and connected at one end to a pin 33 on the companion member 26 and connected at its other end to a pin 3 1 fixed on the associated bracket plate 8. The force of this spring is exerted on its member 26 to return it with a sliding motion from the Fig. 5 to the Fig. 6 position, and with a pivotal movement from the Fig. 6 to theFig.

3 osition.

he actuation of each member 26 is brought about by the following means:

A lever 35 of the first order is provided for each type action, being mounted to turn on the associated pivot 28 and provided at one end with a laterally projecting pin 36 which underlies the companion member 26 intermediate said pivot and the spring 32 when the parts are in the normal position, shown in ig. 3. The other end of the lever 35 is pivoted at 37 to the upper end of a depending actuating link 38, operated in a manner to be hereinafter described. This construction is sition. In this operation the actuating member 26 is first lifted bodily with a sliding movement from the Fig. 3 to the Fig. 4 position to bring about an intermeshingof the rack teeth 27 with the associated pinion 25. In this movement of the actuating member it is held by its spring 32 against the coopcrating stop 30 until the bottom end of the slot 29 reaches the pivot 28. A further upward movement of the member 26 being thus prevented after the engagement with the pinionv is effected continued force exerted on the actuating member 26 by the lever 35 will.

cause said member to receive a pivotal movement around itspivot 28 from the Fig: 4 to the Fig. 5 position, the last mentioned figure showing the parts as they are d spo ed at the end ofthe down stroke of the link 38 This pivotal movement of the actuating member 26 effected substantially a complete rotation of the companion toggle member .9 and moved the connected type bar to the printing position and then returned it substant ally to normal position. From a comparison of Figsv 3 and 5 it will be seen that the spring 32 is moved from one side to the other of the companion pin 36 and that the effective force ofsaid spring is similarlv shifted. When, therefore, the actuating link 38 moves upward in its return movement from the Fig. 5-to the Fig. 6 position, there will be no tendency of the spring to cause the member 26 to turn on its pivot 28, the spring merely causing said member 26 to receive a substantially rectilinear sliding movement to disengage it from the companion pinion 25. After the top wall of the slot 29 reaches the pivot pin 28, however, and the lever 35 continues its return movement from the Fig. 6 to the Fig. 3 position, the spring 32 will exert its force to return the member 26 with a'pivotal movement to the normal Fig. 3-

position. such movement, of course, being inde endent of the toggle member 19.

In order that the toggle member 19 of each '40 on which is mounted a tubular buffer 41 of soft rubber, felt or like material. This buffer is movable with the companion member 26, and is interposed in the path of and arrests the 7 toggle arm 19 when the parts reach the Fig. 5

position. As the member 26 moves first to the Fig. 6 position in returning to the nominal Fig. 5 position, the toggle arm 19 will rest on the bufier 41 and be lowered by its own weight, and that of the toggle link 18, as the buffer 41 with the member 26 returns towards but has not quite reached normal position. As this movement is taking place an off-set, or laterally projecting, positioning, or looking lug 42 on the actuating member 26, approaches and coacts with a laterally project'- ing lug 43 on a depending oil-set arm 19 on the toggle arm 19. This results in elevating the forward end of the toggle arm 19 and the adjacent end of the toggle link 18 to the normal' Figs. 1 and 3 position while the buffer 41 is being moved clear of and out of the path of the toggle link 19 so that, the latter is unobstructed in its further movement at the next printing operation.

It will'be understood from a consideration of Figs. 3 and 4 that while the lugs 42 and 43 are automatically brought into cooperation at the last portion of the return movement of the actuating member 26 to position the toggle in proper normal position, the lug 42 is, nevertheless, moved out of cooperative relation with and releases the lug 43 at the first part of the down movement of the link 38, as shown in Fig. 4, and before a rotative movement of the actuating member 26 is effected. This releases the toggle member 19, for rotative movement, subsequently effected, but not until said toggle member has its pinion 25 engaged by the companion rack teeth v27'to prevent a displacement of the toggle by gravity.

It will be seen that the movement of each actuating member 26 into and out of mesh .with the pinion of its associated toggle; the

sliding and pivotal movements of each actuating member 26; the movements of each buifer 41 into and out of the path of its rotative toggle member 19 and the relative movements of the locking or positioning lugs 42 and 43 are all in timed relation with reference one to another and in timed relation with reference to the downward and upward movements of the link 38 relatively to the dot and dash line a extending through the parts-in Figs. 3 to 6 inclusive.

From certain aspects of the present invention each actuating link 38 may be operated by any suitable means, as by an ordinary key lever. However, inasmuch as the type actions-disclosed in the present instance are well adapted for use in connection with power driven mechanism I prefer to employ some suitable power actuated means rendered effective under control of keys in the usual standard key board for actuating said links. For this purpose I have provided in the present instance the following construction, similar to that embodied in the Remington elec- I A constantly turning cylindrical snatch roller or power actuated element 44 (Fig. 1) is mounted in the frame of the machine beneath the segments 4 and 14 and is provided with a pulley 44 and driven from a suitable motor (not shown) in the direction of the arrow. Two sets of angular levers 45 and 46 are pivoted at 47 and 48 on opposite sides of the snatch roll 44 and in staggered relation. One arm of each angular lever is pivoted at 49 to a two-part link 50, whereas the other arm of each angular lever has pivoted thereto at 51 an eccentric contact member or roller 52 or 52. A spring (not shown) tends to turn each member 52, 52 on its pivot 51 in an anti-clockwise direction to bring a higher contact face on the eccentric into contact with the snatch roller 44. This will result in actuating the companion angular lever 45 or 46 by moving the depending arm thereof away from the power driven roller 44 and pulling down on the connected link 50. This motion will continue until the high point on the eccentric 52 or 52 passes the snatch roll 44 when the companion angular lever will return to normal position, affording an upward return movement of the connected link 50.

A key controlled latching means is provided to hold each eccentric 52 or 52* against the force of its spring. Said latching means for the eccentrics 52 comprises a laterally extending lug 53 on each eccentric 52 which coacts in the normal position of the parts with a stop lug 54 that extends laterally from a trip lever 55 and into path of the companion lug 53, thus holding the companion eccentric 52 against the force of its spring. Each trip lever 55 is pivoted at 56 on the companion angular lever 46 and is connected at its upper end to a depending portion of a link 57 pivoted at its front end, at 58, to an angular lever 59 pivotally supported at 60 and provided with a finger key 61 in the key board of the machine. A contractilecreturning spring 62 is connected to each key lever 59 and returns it and the parts connected therewith to normal position.

A depression of a finger key 61 results in moving the lower end of the companion trip lever'55 forward towards the roll 44, disengaging the lug 54 from the lug 53on the associated eccentric 52 and freeing the latter so that its spring is then effective to turn it on its pivot 51 and bring it into contact with the rotating roller 44 to turn the associated angular lever 46 on its pivot and actuate the companion type bar; the eccentric 52 being arrested by the stop lugs 53, 54 after making a single rotation if the depressed finger key has been released and returns to normal position before the actuated eccentric completes its rotation. However, this maynot occur and should the operator even hold the finger key depressed, this will result in holding a second stop lug 63 on the trip lever 55 into the path of the lug 53, and arresting the actuated eccentric. When pressure is released on the depressed key the lug 63 will be withdrawn from the path of the lug 53 and the lug 54 will again be brought into the path thereof.

Substantially the same construction is employed to control the eccentrics 52 except that the lower end of the trip lever is moved away from the snatch roller instead of towards it on the depression of the corresponding key 61 and the lugs 53, 54 and 63 coact in a slightly different manner from the corresponding lugs 53, 54 and 63 although the ultimate result attained in both cases is the same. Each lug 53*. on an eccentric 52* normally coacts with the lug 63*, and the lug 54 is shifted into the path of the lug 53 on the depression of the associated key. On the release of the depressed key the lug 63 will again be brought into the path of the lug 53*, and the lug 54 will be moved out of the path thereof; Otherwise the same reference numerals designate corresponding parts of the key controlled latching means for both sets of eccentrics 52 and 52.

The power driven construction and key controlled means for selectively bringing about an operation therefrom thus far described are the same as those employed in the Remington electric machine. It should be understood, however, that from certain aspects of my invention any suitable means may be employed in lieu thereof.

In the present instance I have connected the pull links-50 to a series of levers 64, pivoted on a horizontally disposed, segmental, pivot wire 65 carried by the type bar segment 4, and each operating in the same radial slot 3 (or a continuation thereof) that the companion type bar works in. The levers 64 are therefore radially arranged, each of said levers moving in the same radial plane as its type bar whereas the pull links 50 are in a straight line arrangement across the machine. It follows, therefore, that the links 50 are necessarily connected to the levers 64 at different points in the lengths of said levers from the center to the sides of the system. The levers 64 may be made a uniform length but each of them is preferably pierced at different points in its length, as indicated at 66, for effecting such variable connection with the links 50. However, in order to compensate for this variation in leverage I propose to vary the positions of the connecting links 38, which unite the levers 64 and 35, with reference to the fulcrums of said levers. To facili tate this variation in the points of connections of the links 38, the levers 35 may be made a uniform length and each may be pierced at different points along the length thereof as indicated at 68, and ina like manner each of the levers 64 may be pierced at 69.

This arrangement also provides against all side strain or stress in each type action throughout the system and provides for attaining'a uniform extent of movement of each lever 35 andthe parts controlled thereby. lrrom the foregoing description it will be seen that I have provided a comparatively simple, yet highly eflicient, noiseless, power actuated typewriting machine, in which each type action comprises comparatively few parts; which may be actuated at hi h speed, and by which a full complement of fbrty-two type bars controlled from'a standard four bank-key board, and with a single case shift to effect a writing of eighty-four characters, may be provided.

'When I refer in the accompanying claims to key controlled means for actuating or bringing about an actuation of a type bar-or printing instrumentalityI employ such terms in a comprehensive sense to include all means where the control is under the key, whether an actuation of a printing instrumentality' is effected directly by the pressure applied to the key by the operator or such pressure merely renders efiective a'power actuated member, as disclosed herein, to. effect a printing operation.

Various changes may be made in the construction', and parts thereof may be employed without others, without departing from my invention as it is defined in the accompanying claims. 7

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

1. The combination of a printing instrumentality, and means for actuating the same comprising 'a rotative actuating arm, means for transmitting a forward and back printing movement to the printing instrumentality from and at each complete rotat ve movement ofsaid actuating arm, a key, and means brought into operation by an actuation of said key for rotating said actuating arm through substantially 360.

2. The combination of a prmting instrumentality, and means for actuating the same comprising an actuating crank arm intermittently rotated always in the same directlon, means for effecting a printing movement of said printing instrumentalityfrom and at each intermittent rotation of said crankarm,

a finger key, and means brought into opera-- tion at each actuation of said key for effect ing a rotation of said arm.

3. Theicombination of a printing instrumentality, and means for actuating the same comprising a toggle operatively connected to said printing instrumentality and one member of which toggle has an intermittent rotative motion always in the same direction, a key, and means operati e on the actuatlon of said "key for rotating th'e rotative member of said toggle.

4. The combination of a printing instrucomprising a toggle operatively connected to said printing instrumentality and one member of which toggle has an intermittent rotative motion always in thesame direction, a key, and power actuated means rendered effective by an actuation of said key for rotating the rotativemember of said toggle.

5.v The combination of a printing instrumentality, and means for actuating the same comprising a toggle operatively connected to said printing instrumentality, a key, and means operated on the actuation of said key for moving said toggle to and beyond its straightened condition and for effecting a substantially noiseless pressure imprint when the toggle reaches said straightened condihen, the continued motion of said'toggle beyond such straightened condition withdrawmg the printing instrumentality from the prlnting position.

6. The combination of a type bar, and key controlled actuating means therefor comprismg a toggle operatively connected at one end to said type bar and having a rotative member under control of said key that receives an intermittent rotative motion always in the same direction to straighten the toggle and apply a pressure. imprint and to withdraw the type bar from printing position by a continued rotative movement of said rotative membgr that is efi'ective to break the toggle from its straightened condition.

7. The combination of a printing instrumentality, actuating meanstherefor comprising a toggle one member of which has a rotative movement always in the same direction, a driving pinion connected to turn with the rotative member of said toggle, and key controlled means for intermittently turning said pinion.

8. The combination of a printing instrumentality, actuating means therefor comprislng a toggle one member of which has a rotatlve movement always in the same direction, a driving pinion connected to turn with front of the type bar, and means for rotating the anchored member of the toggle always in the same direction.

10. The combination of a type bar, and actuating means therefor comprising a toggle one member of which is rotative, a pinion op mentality, and means for actuating the same eratively Connected to Said rotative gg member, and a rack member mounted for bodily shifting movement into and out of mesh with said pinion and also for pivotal driving movement.

l1. Thecombination of a type bar, and actuating means therefor comprising a toggle one member of which is rotative, means for intermittently rotating said rotative member, and automatically operating means for arresting said rotative member when it has completed a rotation.

12. The combination of a type bar, and actuating means therefor comprising a toggle one member of which is rotative, means for holding said rotative member in its normal position, and automatically operating means for releasing said holding means preparatory to actuating said rotative member.

13. The combination of a type bar, and actuating means therefor comprising a toggle one member of which is rotative, a pinion operatively connected to said rotative toggle member, a rack member mounted for bodily shifting movement into and out of mesh with said pinion and also for pivotal driving movement, and automatically operating means controlled by said rack member for arresting said rotative member when it has completed a rotation.

14. The combinationof a type bar, and actuating means therefor comprising a toggle one member of which is rotative, a pinion operatively connected to said rotative'toggle member, a rack member mounted for bodily shifting movement into and out of mesh with said pinion and also for pivotal driving movement, automatically operating means controlled by said rack member for arresting said rotative member when it has completed a rotation, means for holding said rotative member in its normal position, and automatically operating means controlled by said rack member. for releasing said holding means preparatory to the next actuation of said rotative member.

15 The combination of a type bar, and actuating means therefor comprising a toggle one member of which is rotative, a pinion operatively connected to said rotative toggle member, a rack member mounted for bodily substantially rectilinear movement into and out of mesh with said pinion and also for pivotal. movement, and a spring which returns said rack member in both of said movements.

16. The combination of a printing instrumentality, and actuating means therefor comprislng a rotative member that turns intermittently always in the same direction. a driving member for actuating said rotative member, and means for effecting first a substantially rectilinear engaging movement of said driving member and then'an oscillating movement thereof. 7

17. The combination of a printing instrumentality, and actuating means therefor comprising a rotative member that turns intermittently always in the same direction,

' member.

eeavoo a driving'member for actuating said rotative member, and means for eifecting first a substantially rectilinear engaging movement of said driving member and then an oscillating movement thereof, then a rectilineardisengaging movement of the driving member and finally an independent return oscillating movement thereof.

18. The combination of a printing instrumentality, and actuating means therefor comprising a rotative member that turns intermittently always in the same direction, a driving member for actuating said rotative member, a pin and slot mounting for said driving member to afford a sliding as well as a pivotal movement thereof, and means for first effecting such sliding movement of the driving member to operatively connect it with said rotative member and then efiecting a pivotal movement of the driving member to actuate the rotative member.

19. The combination of a printing instrumentality, and actuating means therefor comprising a rotative member that turns intermittently always in the same direction, a driving member for actuating said rotative member, a pin and slot mounting for said driving member to afford a sliding as well as a pivotal movement thereof, and means for first efiecting such sliding movement of the driving member to operatively connect it with said rotative member and then effecting a pivotal movement of the driving member to actuate the rotative member, said last mentioned means including a spring for disconnecting the driving member from said rotative member and returning the driving member to normal position.

20. 'The combination of a type bar, and actuating means therefor comprising a toggle one member of which is rotative, a pinion operatively connected to said rotative togle member, a rack member mounted for bod- 11y shifting movement into and out of mesh with said pinion and also for pivotal driving movement, a power actuated element, and key controlled means operative at will for effecting an operative connection between said rack member and said power actuated element.

21. The combination of a printing instru mentality, and actuating means therefor comprising a rotative member that turns intermittently always in the same direction, a driving member for actuatingsaid rotative member, and means for eifecting first a substantially rectilinear engaging movement of said driving member and then an oscillating movement thereof, said last mentioned means including a power actuated element, and key controlled means operable at will for effecting an operative connection between said power actuated element and said driving 22. The combination of a printing instrumentality, and means for actuating the same comprising a rotative actuating'arm, transmitting means for transmitting a forward and back printing movement to the printing instrumentality from and at each complete movement of said actuating arm, a power actuated element, and key controlled'means operative at will for effecting an operative connection between said power actuated element and said transmitting means for rotating said arm through substantially 360,

28. The combination of a printing-instrumentality, and means for actuating the same comprising a crank arm intermittently rotated always in the same direction, means for eiiecting a printingmovement of said print ing instrumentality at each intermittent rotation of said crank arm, a power actuated element, a key, and means for-operatively connecting said power actuated element and said arm for effecting a rotation of the arm at each actuation of said key.

24. The combination of a printing instrumentality, and actuating means therefor comprising a toggle operatively connected to said printing instrumentality and one member of whichtoggle has an intermittent rotative movement always in the same direction, a power actuated element, a key, and means controlled by said key for effecting an operative connection between said power actuated element and the rotative member of said toggle.

25. The combinationof a platen, a printing instrumentality, and actuating means therefor comprismg atoggle operatively connected to said printing instrumentality and less pressure imprint of the printing instrumentality against the platen being efiected whens'aid toggle is brought to a straightened expanded condition and the printing instrumentality being withdrawn-from the platen by the continued rotative movement of said rotative member after the toggle passes beyond the expanded straightened condition.

26. The combination of a type bar, a toggle for actuating said type bar and one member of which has a rotative movement always in the same direction, an actuating member for rotating saidrotative member and movable into and out of cooperative. connection therewith, a power actuated element, a key, and means controlled by said key foreffecting an operative connection between said power actuated element and said actuating member forfirst establishing an operative connection r between said actuating member and the rotative member of the toggle and for then retating. said rotative member.

27. The combination of a type bar, a toggle for actuating said type bar and one member of which has a rotative movement always in the same direction, and actuating member for rotating said rotative member, said actuating member being 'mounted for. sliding movement into and out of cooperative relation with said rotative member and for oscillating operating movement, a spring which returns said actuating member in both its sliding and oscillating movementsto normal position and a lever for actuating-said actuating member first with a sliding movement and then with an oscillating movement.

28. The combination of a type' bar, a toggle for actuating said type bar and one member of which has a rotative movement always in the same direction, an actuating member forrotatiiig said rotative member, said actuating member being mounted for sliding movement into and out of cooperative relation with said rotative member and for oscillating operating movement, a spring which returns said actuating member in both its sliding and oscillating movements to normal position, a lever for actuating said actuating member first with a sliding movement and then with air-oscillating movement, a power driven actuating element, a key, and means controlled thereby for establishing an operative connection between said power driven element and said lever.

, 29. The combination of a platen,-a series of pivoted type bars, and actuating means for each type bar comprising a toggle one member of which has a rotativ'e'movement always in the: same direction, a. key, and means rendered effective at the actuation of said key f(l)l' rotating the rotative member of said tog- 30. The combination of a platen, a series of type bars pivoted at the heels thereof for oscillating movement to and vfrom-the platen, 'and actuating means for each type bar comprising a toggle one member of which has a rotative movement always in the same direc tion for straightening the toggle to apply the associated type bar with a substantially noise-,

less pressure 'imprintagainst the platen or the paper thereon and then by a continued movement of said rotative member to break the toggle and withdraw the associated type bar to normal position, a key, a power driven element, and means controlled by an actuation of said key for rotating the rotative member of the associated toggle.

31'. The combination of a printing instrumentality, and means for actuating the same comprising a" rotative actuating arm that turns on a fixed center, intermediate positively maintained connections between said arm and printing instrumentality and through which a forward printing movement and a aea'mo backward return movement is transmitted to the printing instrumentality from and at each complete rotative movement of said arm, a key, and means brought into operation by an actuation of said key for rotating said actuating arm through substantially 360 deg'rees.

Signed at Stamford in the county of Fairfield and State of Connecticut this 8th day of 10 May, A. D. 1930.

' GEORGE G. GOING.

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