US1992417A - Duplicating machine - Google Patents

Description

" Feb. 26, 1935. J J. FLANIGAN 1,992,411

DUPLICATING MACHINE Original Filed Sept. 26, 1951 Z'Sheets-Sheet l jngz-i n t oz": 2%". 3 4

J. J. FLANIGAN DUPLICATING MACHINE Feb. 26,1935.

Original Filed Sept 26, 1951 2 Sheets-Sheet 2 Patented Feb. 26, 1935 r UNITED STATES DUPLICATING MACHINE John J. Flanigan, )ak Park, 111., assignor tovivid, Incorporated, Chicago, 111., a corporation of.

Illinois Original "application September 26, 1931, Serial No. 565,283, new Patent No. 1,955,059, dated April 17,1934. Divided and; this application April 7, 1933, Serial No. 664,922

11 Claims. (01. 242-45) This application is a division of my application, Serial No. 565,283, filed September 26, 1931, now Patent 1,955,059 dated April 17, 1934.

This invention relates to duplicating machines operating on the hectograph principle and using a gelatin band wound onto a supply roll which may be so mounted at one end of the machine that the band may be withdrawn therefrom and directed across the bedof the machine to be wound onto a take-up roll at the other end of the machine.

One object of the invention is to novel duplicating machine of simple and economical construction and efficient and positive opera tion wherein the gelatin band may be wound onto or from a take-up roll by a single operating memher through the intermediary of devices automatically connecting either the supply roll or the take-up roll to the operating member as the operating member is moved in opposite directions. An object of the invention ancillary to the foregoing is to so mount the winding devices that installation or removal thereof may be carried out with a minimum alteration of other parts of the machine. In order that clean clear-cut impressions may be taken from the gelatin band, it is necessary that the extent thereof across the bed be maintained taut, and another object of the invention is to so retard movement of the supply and take-up rolls that the extent of the band over the bed may be tightened and maintained in taut condition.

A further object of the invention is to provid a novel winding device for use in a duplicating machine or the like and embodying a divided shaft extending along the sideof the machine and having a clutch device thereon including a spiral gear adapted to slide along the shaft as it is rotated in opposite directions so that one or the other of the sections of the divided shaft may be operated as the spiral gear is turned in opposite directions.

A selected embodiment of the invention illustrated in the accompanying drawings and therein Fig.1 is a plan view of a typical duplicating machine with which my invention may be associated;

Fig. 2 is a longitudinal sectional view taken substantially on the line 22 on Fig. 6;

Fig. 3 is a transverse sectional view taken stantially on the'line 33 on Fig. 6;

Fig. 4 is a fragmentary side elevation;

Fig. 5 is a sectional view taken substantially on the line 5-5 on Fig. 6; and I sub- .provide a Fig. 6 is. a horizontal sectional view of the winding mechanism mounted on the side of the machine. 1

In the selected duplicating machine illustrated in the accompanying drawings, 7 a'nd'8 are the side frame members spaced a predetermined dis" tance apart and suitably joined together and supporting the bed 9 across which the gelatin band 10 is directed so that a form to be duplicated may be applied thereto and subsequently ii transferred onto sheets pressed against the por-' tion of the gelatin band extending above the bed 9 whereat the form is applied.

Gelatin bands such as are used in hectograph machines of the kind to which this invention appertains are wound in rolls which are usually stored in stands of the kind disclosed in my copending application, Serial No. 553,997, filed J uly 30, 1931, now Patent No. 1,928,35Lpatented Sep-.

tember 26, 1933, or are kept in suitable racks provided near the machine. These rolls include spindles which may be of the kind disclosed in the McNally Reissue Patent No. 18,448, reissued- May 3, 1932 When a roll is to be used it is shitably mounted preferably at the rear end of the machine and provides what will hereinafter be called the su ply roll 11 and which has aspindIe 12. A spindle 13 is mounted at the other end of the machine which is preferably the forward end thereof and the gelatin band may be wound.

thereon, this constituting what 1 will be known hereinafter as'the take-up roll 14.

A carriage C is mounted to be reciprocable over the bed 9 and the gelatin band stretchedsover the bed. This carriageincludes a frame having side members 15 and 16. A roller 17 in the side member 15 is adapted to travel on the top of a flange provided at the top of the "side frame niem her '7. A roller 18 in the side member 16 is adapted to travel on the top of a flange provided at the top of the side frame member 8. The particular structural characteristics of the car? ria'ge illustrated herein are described and claimed in my ctr-pending application, Serial No. 565,283, filed September 26, 1931, of which this application is a division, but it is to be understoodthat any desired formof carriage or duplicating machine may be used without departing from the purview of my invention.

In orderto wind the gelatin band to or from the supply roll 11 and onto or from the take-up roll 14, the following devices are provided. 'A

23 and 24 are provided in the housing 19. A shaft is journaled in the bearings 20, 21 and'22 and a short shaft 26 is journaled in the bearings 23 and 24 in axial alignment with the shaft 25. The adjacent ends of these shafts are abutted between the bearings 22 and 23 and a sleeve 27 is slidably mounted on the shafts over the abutting ends thereof. A spiral gear 28 is provided on the periphery of the sleeve 27. A pin 29 is mounted in p the shaft 25 between the bearing 22 and the adjacent end of the sleeve 27. Another pin 30 is mounwd in the shaft 26 intermediate the bearing 23 and the adjacent end of the sleeve 27. Diametrically spaced notches 31 are provided in the end of the sleeve 27 adjacent the pin 29, and similarly spaced notches 32 are provided in the end of the sleeve 27 adjacent the pin 30.

A bearing 33 is provided in the housing 19 intermediate the bearings 22 and 23 and a shaft 34 is journaled in this bearing and a suitable bearing 35 provided in the side frame member 7, and a hand wheel 36 is fast on the shaft 34 outwardly of the bearing 33; A spiral gear 37 (Fig. 3) is fast on the shaft 34 and meshes with the spiral gear 28. l

A shaft 38 is journaled in the side frame member 7 and extends into the housing 19. A spiral gear 39 is fast on the shaft 38 in the housing 19, and thisspiral gear meshes with a spiral gear 40 fast on the shaft 25 intermediate the bearings 21 and 22. A suitable clutch arrangement is provided at the inner end of the shaft 38 and the adjacent end of the spindle 12 is detachably connected to the shaft 38 through this clutch arrangement.

A shaft 41 is journaled in the side frame memher '7 and'extends into the housing 19. A spiral gear 42 is fast thereon in the housing 19 and this spiral gear meshes with a spiral gear 43 fast on the shaft 26 intermediate the bearings 23 and 24. A suitable clutch arrangement is provided at the inner end of the shaft 41 and the adjacent end of the spindle 13 is detachably connected to the shaft 41 by this clutch arrangement.

The ends of the spindles 12 and 13 opposite those connected to the shafts 38 and 41 are detachably niountedin suitable bearings, provided in the side frame member 8, in any desired manner.

When the hand wheel 36 is turned in one direction and the shaft 34 is similarly turned, the teeth of the spiral gear 37 so act on the teeth of the spiral gear 28 that the sleeve 27 is slid along the shafts25 and 26 until the notches at the end of the sleeve in the direction in which it is so slid engage the adjacent pin and thereupon the shaft in which this pin is fast is connected to the shaft 34 to rotate therewith. At this time the notches at the opposite end of the sleeve 27 are entirely free of the adjacent pin and therefore only one of the shafts is rotated by the handle 36 when it is turned in the aforesaid direction. Likewise, when the hand wheel 36 is turned in the opposite direction, the teeth of the spiral gear 37 so act on the teeth of the spiral gear 23 that the sleeve 27 is slid along the shafts 25 and 26in the direction opposite to that in which it was slid when the hand wheel 36 was turned as first described, and when the sleeve slides in this direction, the notches at the end thereof which were previously disengaged from the adjacent pin now engage this pin and connect the shaft in which this pin is fast to the shaft 34. At this time the notches which engaged the pin when the hand wheel was turned in the first direction are free of this pin.

The pins 29 and 30 are so. spaced apart and the length of the sleeve 27 is such that the notches and pins at but one end of the sleeve will be engaged at a given time, and consequently only one orthe other of the shafts 25 and 26 is driven upon a given operation of the hand wheel 36. Furthermore, since the shafts 25 and 26 are selectively connected to the shaft 34 as the shaft 34 turns in opposite directions, it is clear that the shaft 25 is rotated by the shaft 34 in one direction While the shaft 26 is rotated by the shaft 34 in the other direction.

When the shaft 26 is driven, this movement is transmitted through the spiral gears 43 and 42 to the shaft 41 and thence to the spindle l3 whereupon the band is wound onto the take-up roll 14 as it is withdrawn from the supply roll 11. When the shaft 25 is driven, this movement is transmitted through the spiral gears 40 and 39 to the shaft 38 whereupon the spindle 12 is ro tated and the band is wound onto the supply roll 11 as it is withdrawn from. the take-up roll 14. It is to be understood that when the shaft 26 is connected to the shaft 34 to drive the spindle 13, which withdraws band from the supply roll, the spindle is rotated as is the shaft 25 but at this time the pin in the shaft 25 is disengaged from the notches in the adjacent end of the shaft and hence this rotation of the shaft 25 does not interfere with the turning of the shaft 26. The shaft is similarly rotated when the shaft 25 is connected to the shaft 34, but this shaft is also disconnected from the shaft 34 at this time.

The Winding of the band in opposite directions is utilized to bring fresh portions of the band into position over the bed and also. to so position the form applied to the gelatin band that it will be properly located on the sheets taking the impressions from the form on the band.

The portion of the gelatin band extended over the bed 9 is preferably stretched and held in taut condition when a form is appiied thereto and impressions are being taken from this form. In order to hold the band taut after it has been stretched, the following devices are provided.

An enlarged bearing portion 44 is provided on the shaft 41 and this bearing portion journaled in a centrally located bore 45 in the disc or bearing ,member 46 fast to the side frame member 7 by screws 4'7 or the like. A tapered slot 43 is provided in the disc 46 which opens into the bore 45. Aroller 49 is mounted in this tapered slot 43 and bears against the periphery of the enlarged bearing portion 44. A stud 50 is fast on the sideframe member 7 and a rocker 51v pivotally mounted thereon and one end of this rocker extends through the depressed or cut-out portion 52 in the disc 46 and hasa foot portion 53 thereon that projects into the tapered slot 48 to bear against the roller 49. When the rocker 51 is in the full-line position shown in Fig. 5, the foot portion 53 bears against the roller 49 and holds it at the larger end of the tapered slot 43, and when the parts are in these positions the bearing portion 44 and the shaft 41 are free to rotate. When, however, the rocirer 51 is pivoted into the broken line position shown in Fig. 5, the foot portion 53 is withdrawn from the roller 49 which may then move into the sinallerpart of the slot 43 whereupon it binds the bearing portion 44 to hold this hearing portion and the shaft 41 against reverse rotation.

An enlarged bearing portion 54 is provided on the shaft 33. A split brake band 55 surrounds this bearing portion and has lugs 56 and 57 ad jacent the split therein. 1 A housing .58 secured to the side frame member 7 encloses these parts. The lug 56 bears against a boss 59 in the housing 58. A stud 60 extends from the side frame member '7 and a lever 61 is pivotally mounted thereon. One end of this lever extends into the housing 58 and bears against the lug 57 and the other end of thislever is disposed below a shaft 62 journaled in the side frame member 7. A bearing portion 63 is fast on the shaft 62 inwardly of the side frame member '7 and includes an arm 64 carrying a pin 65 adjacent the free end thereof. A spring 66 extends between the pin 65 and the adjacent end of the lever'6l. The pin 65 also bears against the rocker 51. A handle 6'? is provided on the end of the shaft 62 outwards 1y of the side frame member 7 and when this handle is in the position illustrated in Figs. 2, 4 and 5, the spring 66 acts on the arm 64 to urge it into engagement with the stop pin 68 mounted in the side frame member '7 and when the parts are in these positions, the spring 66 acts on the rocker 51 to urge it into the full-line position of Fig. 5 which, as previously described, disposes the roller 49 inthe larger end of the slot 48 to permit free turning of the enlarged bearing portion 44 and the shaft 41. When the parts are so arranged, the tension of the spring 66 is not sufficient to sourge the end of the lever 61 toward the lug 5'7 that the brake band 55 will fricti-onally engage the periphery of the enlargedportion 54 on the shaft 38, and therefore the shaft 33 is free to turn. The handle 67 is disposed in the described position when the winding mechanism is to be operated.

When, however, the handle 67 is turned to i move the arm 64 into the broken line position of Fig. 5, the rocker 51 is free tom-ove into the broken line position shown in this figure which, as previously explained, permits the roller 49 to move through the slot 48 tobind the enlarged bearing portion 44. This movement of the arm 64 also tensions the spring 66 which therefore so acts on the lever 61 that the lug 5'? is urged toward the lug 56 and since the lug 56 bears on thelboss 59, the brake band 55 is held against movement and is therefore tightened onto-the periphery of the enlarged bearing portion 54 which, therefore, holds the shaft against move: ment and hence when the arm 64 is in the broken line position of Fig. 5, both the shafts 38 and 41 are held againstunwinding movement. Thus, if the arm 64 is disposed in the broken line position of Fig. 5 and the hand wheel 36 is turned to slightly wind the band onto the take-up roll, the band will be drawn taut since the brake band 55 holds the shaft 38 against turning movement in either directionwhereas the binding effect of the roller49 only prevents unwinding movement of the shaft 41. When the arm 64 is returned to the full-line position shown in Fig. 5, the band is free to be wound in either direction.

It is manifest from the foregoing description that I have provided a novel duplicating machine wherein the gelatin band may be expeditiously drawn taut to thereby insure neat impressions on sheets applied to theband. Furthermore, the interconnection between the driving parts of the winding mechanism and the driven portions thereof includes a member which selectively connects the driven parts of the winding mechanism to-the driving parts as the driving parts move in opposite directions, and consequently the driven parts cannot be operated in a manner which would tend to loosen the roll of band previously wound, and this is particularly true since the band is only unwound from one spindle as it is wound onto the other.

I While Ihave illustrated and describeda selected embodiment of my invention itis to be understood that this is capable of variation and modification and I therefore do not wish to be limited to the precise details set forthbut desire band on one of the rolls as it is unwound from the other of therolls and including an operating device, a-shaft extending from said operating device to one of said rolls, another shaft extending from said operating device to the other of said rolls, said shafts being arranged in axial alignment with adjacent endsthereof in juxtaposition to each other, and means including a part mounted on the juxtaposed ends of said shafts and automatically connecting one of said shafts to said operating device as the operating device is moved in one direction and connecting the 1 other of said shafts to said operating device as the operating device is moved in the other direction. Y 1

2. In a duplicating machine wherein a gelatin band is withdrawn from a supply roll and directed across the bed of the machine to. a takeup roll, means for moving said rolls to Wind said band on one of the rolls as it is unwound from the other of the rolls and including an operating device, a shaft extending from said operating device to one of said rolls, another shaft extending from said operating device to the other of said rolls, said shafts being arranged in axial align. ment with adjacent ends thereof in juxtaposition to each other, a sleeve mounted over the juxtaposed ends o-f'saidshafts, attaching. deviceson the shafts, and'means connectingthe sleeve tothe operating device whereby when the operating device is moved in one direction said sleeve will be moved to engage the attaching device on one shaft to thereby connect; said shaft to said operatingdevice and whereby said sleeve will be moved in the opposite direction to'engage the attaching device on the other of said shafts whereby said other shaft will be operated when the operatingdevice is moved in the opposite direction to the first described movement thereof.

3. In a duplicating machine wherein a gelatin band is withdrawn from a supply roll and directed. across the bed of the machine to a take-up roll, means for moving said rolls to wind said band on oneof the rolls as it is unwoundfrom the other of the rolls and including an operating device,

a shaft extending from said operatingdevice to.

one of said rollsyanothershaft extending from said operating device to theother of said rolls, said shafts being arranged in axial alignment with adjacent ends thereof in juxtaposition to each other, a sleeve mounted over the juxtaposed ends of said shafts, attaching deviceson the "shafts, said sleeve mounted over the juxtaposed ends of said shafts having notches in the ends thereof, pins on said shafts adjacent the ends of said sleeve, and means connecting the sleeve to the operating device whereby when the operating device is moved in one direction said sleeve will be moved to engage the notch at one end thereof with the pin on one of said shafts-to operate said shaft with the operating device and. whereby said sleeve will be moved in the opposite direction to engage the notch at the other end thereof withthe pin on the other of said shafts whereby said other shaft will be operated when the operating device is moved in the opposite direction to the first described movement thereof.

4. In a duplicating machine wherein a gelatin band is withdrawn from a supplyroll and directed across the bed of the machine to a take-up roll, means for moving said rolls to wind said band on one of the rolls as it is unwound from the other of the rolls and including an operating device; a shaft extending from said operating device to one of said rolls, another shaft extending from said operating device to the other of said rolls, said shafts being arranged in axial alignment with adjacent ends thereof in juxtaposition to each other, a sleeve mounted over the juxtaposed ends of said shafts, attaching devices on the shafts, a spiral gear on said sleeve, a spiral gear on said operating device meshing with the spiral gear on said sleeve whereby-when said operating device is moved in one direction said spiral gears will cooperate to shift said sleeve to engage the notch at one end thereof with the pin on one of said shafts whereby said shaft will be operated with saidoperating-device, said spiral gears cooperating to shift said sleeve in the opposite direction when said operating device is moved in the opposite direction wherebythe notch at the other end of said sleeve will engage the pin on the other of said shafts so that said other shaft will be operated with said operating device upon further movement thereof in said opposite direction.

5. Ina duplicating machine wherein a gelatin band is withdrawn from a supply-roll at one end of the machine to be directed across the bed of the machine to be wound onto a take-up roll at the other end of the machine, meansfor Winding said gelatin band from said supply roll to said take-up roll, locking means including a part on the take up-roll for preventing unwinding movement of the take-up roll and including another part on the supply roll for retarding movement of the supply roll whereby said band may be stretched taut over said bed and between said rolls, and means independent of the Winding means for operating the locking--means.

6. In a duplicating machine wherein a gelatin band is withdrawn from a supply'roll at one end of the machine to be directed across the bed of the machine to be wound onto a'take-up roll at the other end of themachine, means for winding said gelatin band from said supply roll to said take-up roll and including an operating member,

locking means including a part on the take-up roll for preventing unwinding movement of said take-up roll, brake means including a part on the supply roll and having a part cooperating therewith for applying tension tov said supply roll to resist movement thereof, and means including a handle positioned near said operating member for operating said locking and said brake means.

7. A duplicating machine having spindles at opposite ends thereof adapted to havea gelatin band wound thereon to be windable from either one of said spindles to the other of said spindles,

means for winding'said band, locking means ineluding a part on one of said spindles for preventing unwinding movement of said band from said one of said spindles, brake means including a part on the other of said spindles and having a part cooperating therewith forapplying tension to said other of said spindles, and manually operable means for operating said locking and said brake means.

'8. A duplicating machine having spindles at opposite ends thereof adapted to have a gelatin band wound thereon to be windable from either one of said spindles to the other of said spindles, means for winding said band, a bearing member, a bearing portion on one of said spindles mounted in a bore in the bearing member, said bearing member having a tapered slot therein opening into said bore, a roller in said slot movable into operative position to prevent movement of said spindle in one direction, means engageable With said roller to move saidroller from said operative position in said slot, and brake ing with the other of said spindles to resist movement thereof when said roller is in operative position in said slot.

9. A, duplicating machine having spindles at opposite ends thereof adapted to have a gelatin band Wound thereon tobe windable from either one of said spindles to the other of said spindles, means for winding said band, a bearing member, a bearing'portion on one of said spindles mounted in a bore in the bearing member, said bearing member having a tapered slot therein opening into said bore, a roller in said slot movable into operative position to prevent movement of said spindle in one direction, control meansmoving means cooperat-' said roller-to and from said operative position in Y said slot, brake means cooperating with the other of said spindles to resist movement thereof when in braking position, and common means for controlling the operation of said control means and said brake means.

10. In a duplicating-machine having spindles at opposite ends'thereof with a gelatin band extended between said spindles over the bed' of the machine, means for winding said band, a bearing member, a bearing portion on one of said spindles mounted in a bore in the 'bearingmember, said bearing member having a tapered slot opening into said bore, a roller in said slot movable into operative position to prevent movement of said spindle in one direction, and means engageable with said roller and operable to move said roller from said operative position.

11. In a duplicating machine having spindles at opposite ends thereof with a gelatin band extended between said spindles over the bed of the machine, means for winding said band, a bearing member, a bearing portion on one of said spindles mounted in a bore in the bearing member, said bearing member having a tapered slot opening into said bore, a roller in said slot movable into operative position to prevent movement of said spindle in one direction, and means including a rocker having a foot portion thereon engaged with said roller whereby said rocker may be moved to move said roller from said operative position in said slot.

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