US2014884A - Duplicating machine - Google Patents

Description

- J. E. EUTH DUPLICATING MACHINE Filed Aug. 21, 1931 Sept. 17, 1935.

' 5 Sheets-Sheet 1 Sept. 17, 1935. J. E. EUTH DUPLICATING MACHINE Filed Au 21, 1931 5 Sheets-Sheet 2 Sept. 17, 1935. J. E. EUTH I DUPLICATING MACHINE Fil ed Aug. 21, 1931 I g fl a an m 4 1 m 22 6 v 27 a 5 Q J .0 J M I) "N f QA W el l'lll I Sept. 17, 1935. J. E. EUTH 2,014,884

DUPLICATING MACHINE Filed Aug; 21. 19:51 5 Sheets-Sheet 4 Sept. 17, 1935. J. E. EUTH DUPLICATING MACHINE Filed Aug. 21, 1931 5 Sheets-Sheet 5 "Lkm Patented Sept. 17,1935

PATENT OFFICE 2,014,884 DUPLICATING mom John E. Euth, Chicago, m, assignor to United Autographic Register 00., Chicago, 111., a corporation of Illinois Application August 21, 1931, Serial No. 558,601

' 40 Claims.

This invention relates particularly to duplieating machines adapted to the purpose of filling in the forms of continuous-form stationery, and more particularly to improve means for manipu lating the stationery in the machine.

The primary object of the invention is to pro vide a simple and easily operable device for aligning the paper strips in writing position on the platen; a tensioning device for tensioning the strips after such alignment; and a device for retracting a set of forms to writing position, when such action is desirable, after the forms have been advanced beyond the platen,

In accordance with the present invention split register pins are positioned on the machine in front of the platen to engage register perforations in continuous-form stationery led over the platen, and the pins are'adapted to be expanded, or spread within the perforations to align the strips. A tensioning device is provided in rear of the platen to come into operation after the alignment of the strips and to grip the strips and tension them over the platen. In case the operator finds that an error has been made on a set of forms advanced beyond the platen, a spring retracted guide-roll may be thrown into operation which will prevent further advancement of the strip from the rear and upon release will draw the forms back over the platen.

The invention is illustrated in a preferred embodiment in the accompanying drawings, in which- Fig. 1 is a side elevational view of a machine embodying the invention; Fig. 2, a broken plan view of the same, with the typewriter removed; Fig. 3, a broken longitudinal sectional view of the same, taken as indicated at line 3 of Fig. 2; Fig. 4, an enlarged'broken longitudinal sectional view of the aligning mechanism, showingthe pins in expanded position; Fig. 5, a view similar to Fig. 4. showing the pins retracted; Fig. 6, a plan view of the bar supporting the movable portions of the register pins; Fig. '7, a broken longitudinal ele-' and actuating mechanism; Fig. 10, a broken sectional view similar to Fig. 3, showing the operation of the strip retracting device; Fig. 11, a broken transverse sectional view of the frame, taken as indicated at line ll of Fig. 10; Fig. 12,

'tember 9, 1929.

a broken longitudinal sectional view of the aligning device, taken as indicated at line l2 of Fig. 2; and Fig. 13, a broken transverse sectional view of the stationery roll and supporting trapeze, taken as indicated .at line I 3 of Fig. 1. 5

' In the embodiment illustrated A designates a main frame comprising a standard A, and a surmounting bed A B, a platen movably supported in the bed; C, a typewriting machine movably mounted on the bed; D, a carbon-supply" device mounted on the bed; E, an aligning device mounted in front of the platen; F, a unit mounted between the arms of the bed A, comprising a tensioning device F, and strip-retracting device F G, a trapeze for supporting a multiple-strip roll 01 stationery; and H, a multiple strip roll from which continuous-form stationery H is drawn.

The frame A is of known construction having standards A connected by cross-rods II! which are held by nuts It) on the standards and comprises arms conected at the rear bya cross-rod l I held by nuts II, and at the'front with'a cross-bar l2. whose ends are bent over and held in position by machine screws H.

The platen B isstandard equipment andis mounted in a manner usual to this type of machine. Such a mounting is described'in my copending application Serial No. 391,207, filed Sep- The rear portion of the platen is held in a raised position by means of springheld actuating mechanism l3 involving a system of levers actuated through the medium of a connecting rod l4 whose lowerend is joined to a. pedal l5 which is mounted on a pivot l6 carried 35 by rigid arms I! extending from the lower crossrod l0.

The mechanism l3 includes a rock-shaft i8 I equipped with bent rock arms l9 which carry an and to lift the clamping bar 20 by rocking the arms l9.

The typewriting machine C maybe of any well-known construction. It is capable of transverse movementin the operation of printingwords, characters, etc; and is movable longitudi- 'nally on the arms or rails which comprise .the

bed A.

The carbon-supply device D comprises a mul- 5 The bed A is fixedly mounted 20 roll mounted on opposite sides of the platen in brackets 22 and is adapted to supply continuous carbon strips across the platen in the well-known manner.

The aligning device E (see Figs. 3-5 and 12) is mounted on the front of the machine and is associated with cross-bar l2, mentioned above. The cross-bar is of inverted U-shape and serves as a lower clamping member. A bar 26 is rigidly attached to the inner side of the cross-bar l2 and is provided with pins or fingers 26' which extend upwardly through perforations in the cross-bar. A companion channel-like member 21 is provided with pins 21- and is slidablysupported on the cross-bar I! by means of capped studs 2| which extend through slots 28 in the member. A pair of tension-springs 3i urge the member 21 against the bar 28 so that the pins 26 and 21' coact and form expandable splitpins. The bent arms I9 are provided with cams I! which engage rollers 3| journaled on the movable member 21 and serve to spread the pins when the clamping bar 2| is lowered into clamping position. The expanding action serves to align the strips when the register perforations are impaled by the pins. The front central portions of the cross-bar i2 and the member 21 are recessed at 32 to facilitate grasping the ends of the strips when the bar 20 is raised.

The mechanism, or unit F, is adapted to'rest on the cross members of the bed A. A pair of U-shaped frame members 35 support the inner mechanisms, and side plates 36, which are held by screws 38*, serve as closures for the housing. The front ends of the side members are attached to a channel member 31, by screws 31', and the rear ends to an angle plate 38 by screws 38.

A pair of slide plates 39 are provided with slots 39' which slidably engage capped studs 40 projecting from the frame members 35. The plates are provided with studs H which are engaged and actuated by the bifurcated end of an arm 42 which is fixedly mounted on a rock-shaft 43 which is journaled in brackets 31' depending from the channel member 31. The rock-shaft is provided with a shorter arm 44 which is connected by an adjustable link 45 to a rock-member 46 which is mounted on a pivot which in turn is journaled in brackets 31 depending from the member 31. The front end of the rock-member is actuated by the lever mechanism II when the treadle is depressed, and such an action will draw the plates 39 forwardly. Springs 41 are provided to normally retract the plates.

The frame-members 35 are provided with slots 35 to permit the tensioning mechanism F to be moved longitudinally. A'clamping bar 48 is fixedly attached to the plates 39 with screws II. A rock-shaft 49 is journaled in the plates and equipped with a pair of clamping arms 50 which are adjustable laterally by means of winged nuts 50, and each end of the shaft has a cam arm 5|, held by screws 5!. to engage studs 52 projecting from the side members. The camarms serve to rock the shaft and raise the clamping arms when the device is drawn forwardly. Springs 53 are tensioned between the cam-arms and plates to urge the arms in to gripping position.

The strip-retracting device F' is also mounted in the unit F. The frame-members 35 are provided with a pair of horizontally disposed J-shaped slots 35' in which is seated a guide-rod 55. The ends of the rod are provided with loosely 2,014,884 tiple-strip carbon supply roll and a take-up journaled yokes 55 to which long tension springs 56 are attached. The springs pass over sheaves 51 journaled on a stud 51*, and their front ends are attached to the lower slide-studs are further provided with slots ill" which correspond with the slots 35" except that the advance ends are cut away to provide upwardly inclined surfaces 60. It will be readily understood that, when the cam-plates are pushed rearwardly, the faces 60 will raise the guiderod 55 to a position where the springs 5' will draw it rearwardly in the slots 35' and ll. Both of the cam-plates 60 are provided with fingers ill which extend upwardly through slots in the frame members 35 and into the path of the typewriter C, so as to be engaged by the machine when the machine is pushed to its rearmost position on the bed A. Springs 62 are attached to the cam-plates and, like springs 41, are connected to front slide studs Cl and urge the cam-plates into inoperative position.

A pair of fixed guide-bars 65 are-attached to the frame-members 35 and the strips H are led between the bars to the tensioning mechanism F. The bars are positioned so that when the roller 55 is thrown into action the strips will be folded back over the bars and the stationery in the loop formed by the rod, as shown in Fig. 10, will be retracted from the front. It will be understood that when the strips are again readvanced by drawing them forwardly the rod will automatically be returned to its inoperative position in the offset.

Additional guides E6 are journaled in the sidemembers and associated bars 61 are provided with transversely adjustable fingers 51" to accommodate various widths of strips. The sidemembers are provided with additional perfora- 45 tions 66* to permit the guides and bars to be positioned as desired.

To the lower side of the unit F is attached a transverse channel member 68 which carries a pair of laterally adjustable hooks 69 adapted to 50 support the trapeze G. As shown in Fig. 10, an additional pair of hooks may be provided on a special bracket 10 in case more than one supply roll is to be used.

- central perforations,'may be inserted. The trapeze comprises a pair of arms 15 connected at their upper ends by transverse rods 16. The lower end of one arm is provided with an inwardly 65 extending trunnion 11 adapted to engage the perforation in one of the members 14. The other arm is provided with a bearing 18 adapted to slidably receive an angular bar I9, which is not free to rotate. The inwardly extending end of 70 the bar is provided with a rigidly attached domelike trunnion 80 adapted to frictionally engage a member 14. The outer end of the bar has a capped head 8| by which it is moved in the member II. The bar is drilled to receive a spring I2 65 therefrom, but the appended claims should be 2,014,884 and locking plunger 83, and the bearing 18 is provided with a counter-sunk hole 18' for a finger button 84. It will be understood that by depressing plunger 83 by means of the finger button 84, the trunnion may be pulled outwardly to remove the stationery roll. This type of holder is particularly well adapted to provide the requisite amount of friction to prevent the roll from unwinding more stationery than is desired.

The machine may be loaded by threading the stationery strips from the supply roll over guide 66, between bars 65, over roller 55, through the clamping device, over the platen interleaving the carbon strips, and under the clamping blade to the split-pins. Loading the strips through the clamping device, or governor, is much easier than in machines heretofore used, because the strips can be taken together and the old time-taking threading of the strips individually, is avoided.

Operation After a set of forms has been filled in, the treadle I is depressed which raises the clamping bar 20, retracts the split pins, and advances and releases the tensioning device in the rear of the platen; while the treadle is depressed the operator grasps the ends of the strips at the opening 32 and draws the next set of register perforations forwardly and into engagement with the pins; and upon release of the treadle the following order of actions occurs: the clamping bar descends and its cam-equipped arms spread the split pins and cause the strips to be drawn forward slightly and alined; the upper clamping bar grips the strips against the lower clamping member; and the grippers 50 of the tensioningdevice F, which have been moving rearwardly and downwardly, grip the alined strips and tension them against the register pins by further rearward movement. The operator may then tear the advanced set of forms from the strips on the front edge of. the bar 20, or if she desires she may make erasures upon them and return them to writing positioniby depressing the treadle and moving the typewriter to its rearmost position, thus causing the cam-slides 60 to raise the rod 55 and prevent further feeding from the rear. The strips are lifted from the pins by the operator and the advance set of holes returned to the pins while the guide roller gently pulls the strip backwards, and upon release of the treadle the alining and tensioning device will function exactly as above. Upon readvancement of the strips the rod will automatically be drawn to its normal inoperative position.

It may be noted that, in advancing the forms, the strips are drawn freely from the roll, or source of supply, without pulling against any weights or friction devices, other than those on the roll itself. This feature makes this operation extremely easy, and danger of tearing is practically eliminated.

The foregoing detailed description has been given for cleamess of understanding only, and no unnecessary limitations should be understood construed as broadly as the prior art,.

What I claim as new, Letters Patent, is:

1. A duplicating machine comprising: a movable platen; expansible register-pins disposed near the front end of said platen; and means for permissible, in view of and desire to secure by actuating said platen and contracting and expanding said register-pins.

2. In a duplicating machine: a frame; a movable platen mounted therein; expansible registerpins mounted on said frame in front of said platen; a lower clamping member associated with said register-pins; an upper movable clamping member; and mechanism for actuating said platen, said upper clamping member, and said register-pins.

3. In a duplicating machine: a frame; a platen movably mounted therein; a fixedly mounted lower clamping member carried by said frame and disposed in front of said platen; a pair of split register-pins associated with said lower clamping member, each comprising a fixed member and a movable member; a movably mounted upper clamping member; and treadle-actuated mechanism serving to actuate said platen, said movable clamping member, and the movable members of said expansible register-pins.

4. A duplicating machine comprising: a platen; expansible register-pins disposed near the front end of said platen; and treadle-actuated mechanism serving to actuate said pins.

5. In a duplicating machine: a frame; a platen mounted therein; a clamping-bar fixedly mounted on the front portion of said frame; a pair of expansible register-pins mounted on said clamping-bar, each having a spring-retracted movable member; a lever-device adapted to actuate said movable members against the force of their springs; and mechanism adapted to actuate said lever-device.

6. Mechanism as set forth in claim 5, in which said lever-device carries, also, an upper clamping member.

7. Mechanism as specified in claim 5, in which the lever-device carries an upper clamping-member and is equipped with cams which serve to actuate the movable members of said expansible register-wins, said cams permitting retraction of said movable members when the upper clamping member is in elevated position.

8. Mechanism as specified in claim 5, in which the clamping-bar mounted on said frame is equipped with guides in which the movable members of the expansible register-pins are slidably mounted. f

9. Mechanism as specified in claim 5, in which the first-mentioned clamping-member is of inverted U form and equipped with guides in which the movable members of said expansible register-pins are slidably mounted.

10. In a duplicating machine; a frame having a" platen over which continuous-form stationery may be led; forwardly movable aligning means in front of said platen adapted to align and pre-- vent rearward movement of said stationery; and a rearwardly urged tensioning device in rear of the platen adapted to operatively engage the stationery after said stationery has been aligned.

11. In a duplicating machine; a platen over which continuous-form strips provided with register-perforations may be drawn; aligning mechanism in front of said platen comprising expansible register-pins adapted to enter and expand in said register-perforations; and a rearwardly urged tensioning device in the rear of the platen adapted to operatively engage said strips after said register-pins have been expanded to bring the perforations into registration.

12. A tensioning device comprising; a forwardly and rearwardly shiftable frame equipped with a fixed bar and associated rock-shaft provided with a clamping arm adapted to grip a plurality of stationery strips against said bar,

actuated by said platen actuating means.

spring-means for urging said frame rearwardiy and cam means serving to oscillate said rockshaft during the shifting of said device.

13. In a duplicating machine: aframe having arms extending rearwardly; a platen mounted in said frame over which paper strips may be led; means for gripping the ends of said strips in advance of said platen; and a tensioning device mounted between said-"arms inthe rear ofthe platen comprising .a pair of forwardly and rearwardly movable slide-plates, a transfixed cross-bar mounted on said plates,- an associated rock-shaft joumaled in the plates and having clamping arms adapted to grip the strips against said bar, and means for rocking said shaft to release the strips.

14. A device as specified in claim13, in which the platen is movable and means are provided for actuating the platen, and the slide-plates are provided with a shifting mechanism which is 15. In a duplicating machine: a "frame equipped with a platen; expansible register-pins mounted in said frame in advance of said platen; tensioning mechanism mounted in said frame back of said platen; and common actuating mechanism for said expansible register-pins and said tensioning mechanism.

16. Mechanism as specified in claim 15, in which the tensioning mechanism is characterized by gripping members adapted to grip the stationery after said expansible register-pins have operated to register the stationery-strips.

17. Mechanism as specified in claim 15, in which the tensioning mechanism comprises cacting gripping devices and a spring adapted to retract said gripping devices.

18. In combination in a duplicating machine: a frame; a platen therein; expansible registerpins mounted in front of said platen, each comprising a fixed member and a movable member; a tensioning-device mounted in said frame back of said platen; and actuating mechanism for said tensioning device and said movable members serving to effect expansion of the pins and thereafter effect tensioning of the stationery.

19. In a duplicating machine: a frame equipped with a platen and with means for hold- I ing the advance end of continuous-form stationery led across the platen: a typewriting machine mounted to travel on said frame; a stationery-retracting device mounted on said frame, and means for throwing said device'into action, said last mentioned means being actuated by the typewriter when moved to a retracted position on said frame.

20. In a duplicating machine: a frame equipped with a platen and with means for holding the advance end of continuous-form stationery led over said platen from the rear; and a normally inoperative stationery-retracting device mounted on said frame out of the path of and out of effective contact with the stationery; and means for throwing said device into operative engagement with said stationery.

21. Mechanism as specified in claim 20, in which said frame is equipped with a guide through which the stationery extends, and said stationery-retracting, device is equipped with means for engaging the stationery in front of said guide and eifecting a fold in the stationery, with consequent withdrawal of the sationer'y from the platen, when said device is moved rearwardly.

22. Mechanism as specified in claim 20, in which said frame and said stationery-retracting device are equipped with means for enga ina the stationery to effect a folding thereof when the stationery-retracting device is lifted and moved rearwardly.

23. Mechanism as specified in claim 20, in 5 which the stationery-retracting device normally is held in an advance position and is equipped with spring-actuating means adapted to effect retraction of the stationery-retracting device.

24. Inaduplieating machine: a frame equipped in with a' platen and in front of said platen with register-pins; a guide on said frame in the rear of the platen through which continuous-form stationery may be led on its way across the platen; and a retractible stationery-retracting device engaging the lower side of the stationery in advance of and beneath said guide.

25. In a duplicating machine: a frame equipped with a platen and in front of said platen with register-pins; a guide on said frame in the rear of the platen through which continuous-form stationery may be ledon its way across the platen; and a retractible stationery-retracting device engaging the lower side ofthe stationery in advance of said guide, said stationery-retracting device being equipped with a retracting spring and adapted to move upwardly and then rearwardly to 'eifect retraction of the stationery.

26. In a duplicating machine: a bed having a platen; and a stationery-retracting device comprising auxilliiary frame-members mounted in said bed with slots having offsets at their front ends, a transverse guide supported by said members through which continuous-form stationery may be led to said platen, and a rod seated in said offsets and adapted to be lifted and moved rearwardly in said slots, thereby to fold the stationery over said guide and effect retraction of the stationery upon said platen.

27. Adevice as specified in claim 26, in com- 40 bination with means for throwing the rod into operative engagement with the stationery.

28. A device was specified in claim 26, in which the rod is so mounted as to be thrown to latched position by thestationery when said stationery'45 is readvanced over the platen.

29.'In duplicating mechanism: a bed equipped with a platen; an alining-device in front of said platen having means for engaging register-perforations in continuous-form stationery extending over the platen; a tensioning-device in the rear of the platen; and mechanism operative to cause said alining-device to operate to effect registration and thereafter cause said tensioningdevice to operate to effect tensioning of the stationery.

30. Mechanism as specified in claim 29, in which the alining-device comprises expansible register-pins.

31. Mechanism as specified in claim 29, in which the alining-device comprises expansible register-pins and the tensioning device comprises grippers and means for shifting said sr ppers rearwardly.

32. Mechanism as specified in claim 29, in

which a foot-treadle controls the operation of rsaid aiming-device and said tensioning device.

33. A duplicating machine comprising: a

frame; a substantially flat platen mounted therein; forwardly slidable, normally spring-re- 34. A duplicating machine comprising: a frame; a substantially fiat platen mounted therein; tensioning means in the rear of said platen adapted to engage duplicating strips led from a suitable source forwardly over the platen; normally retracted, forwardly movable registerfingers mounted in said frame near the front end of said platen; and treadle-actuated means serving to actuate said register-fingers.

35. A duplicating machine comprising: a frame; a substantially flat movable platen mounted in said frame; a tension device in the rear of said platen adapted to engage duplicating strips led forwardly from a source of supply over said platen; normally retracted, forwardly movable register-fingers mounted in said frame near the front end of said platen; and manually actuated means serving to actuate said platen and said register-fingers.

36. In a duplicating machine: a frame; a sub stantially flat movable platen mounted therein; tensioning means in the rear of said platen adapted to engage duplicating strips led forwardly from a source of supply across said platen; normally retracted register-fingers movably mounted in said frame in front of said platen; a lower clamping member associated with said register-fingers; an upper movable clamping member having perforations for accommodating said fingers; and mechanism for actuating said platen, said upper clamping member, and said register-fingers.

37. A duplicating machine comprising: a frame; a movable platen mounted therein; a friction device in the rear of said platen adapted to engage duplicating strips ledforwardly from a source of supply over said platen; normally retracted, forwardly movable register-fingers mounted in said frame near the front end of said platen; and means for actuating said-platen, said register-fingers and said friction-device.

38. The method of aligning and tensioning continuous-form stationery provided with uniformly spaced register-perforations, which comprises: engaging the register-perforations by expansible means at the advance ends of the strips and effecting registration thereof; and subsequently engaging the strips at a point in rear and exerting a tensioning force thereon.

39. The method as specified in' claim 38, as practiced by gripping the strips after they have been aligned by the expansible means and exerting tensioning force on the strips.

40. A duplicating machine comprising: a frame; a substantially flat platen mounted therein, register-fingers near the front end of said platen slidably mounted upon said frame for straight line movement in the plane of stationery strips engaged thereby; and treadle-actuating means serving to actuate said register-fingers.

JOHN E. EUTH.

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