US2021409A - Duplicating machine - Google Patents

Description

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Nov. 19, 1935. J. J. FLANIGAN DUPLICATING MACHINE Original Filed Oct. 2, 1951 Patented Nov. 19, 1935 UNITED STATES DUPLICATING MACHINE John J. Flanigan, Oak Park, 111., assignor to Vivid, Incorporated, Chicago, Ill., a corporation of Illinois Original application 7 566,449, new Patent October 2, 1931, Serial No.

1,909,758, dated May .16,

Divided and this application April 7,

1933, Serial No. 664,923

'7 Claims.

This application is a division of my application, Serial No. 566,449, filed October 2, 1931, and now Patent No. 1,909,758, patented May 16, 1933.

This invention relates to, duplicating machines operating on the hectograph principle and wherein a gelatin band is stretched across the bed of the machine to be withdrawn from a roll at one end of the bed and wound upon a roll at the other end whereby a form to be duplicated may be transferred onto the portion of the band stretched across the bed to provide a matrix from which impressions may be made onto sheets applied thereto.

After the desired number of impressions have been taken from the matrix on the band, the band is advanced to bring a fresh portion thereof into position over the bed and another form is applied thereto to provide a matrix.

One of the objects of my invention is to provide a novel hectograph duplicating machine wherein a gelatin band is stretched across the bed between supply and take-up rolls positioned at opposite ends of the bed and wherein the gelatin band may be wound from either of these rolls onto the other by a Winding mechanism including an operating device associated with one of the rolls, which may be automatically operated to connect one of the rolls to the operating device as it is moved in one direction and wherein the other of the rolls is automatically connected to the operating device as the operating device is moved in the opposite direction.

A further object of the invention is to provide a duplicating machine wherein a spiral gear is associated with the operating device which may slide along the shaft of the operating device to connect the operating device to one of the rolls in. the machine as the operating device is moved in one direction and to connect the operating device to'the other of the rolls as the operating device is moved in the opposite direction.

A further object of the invention is to provide a novel winding mechanism for use in hectograph duplicating machines and which is of simple and economical construction and efficient and positive operation.

A selected embodiment of my invention is illustrated in the accompanying drawing wherein Fig. l is a side elevation of a duplicating machine in which my novel winding mechanism is incorporated;

Fig. 2 is a sectional detail view taken substantially on the line 22 on Fig.1;

Fig. 3 is a view similar to Fig. 2 showing the parts in a different position;

Fig. 4 is a sectional view taken substantially on the line 44 on Fig. 2; and

Fig. 5 is a sectional view taken substantially on the line 55 on Fig. 1.

In the selected embodiment of the invention illustrated in the accompanying drawing, 6 indicates a side frame member of a hectograph duplicating machine including a bed I across which a gelatin band B is extended between a supply roll 9 mounted at one end of the machine and a takeup roll 9 mounted at the other end of the machine. Preferably, though not necessarily, the supply roll is mounted at the rear end of the machine and the take-up roll is mounted at the front end thereof. A carriage C is reciprocable over the bed i to apply a form to the band B to provide a matrix thereon and to subsequently apply sheets to the matrix to take impressions therefrom. The carriage C may be of any desired structure as, for example, that disclosed in my co-pending application, Serial No. 566,449, filed October 2, 1931, of which this application is a division, and now Patent No. 1,909,758, patented May 16, 1933.

The supply and take-up rolls include suitable spindles which, for example, may be of the kind disclosed in the McNally Reissue Patent No. 18,- 448, reissued May 3, 1932.

A mechanism is provided for winding the gelatin band from the supply roll to the take-up roll or vice versa and includes a housing 9' mounted on the outer side of the side frame member 5. Bearings ill, II, I2 and I3 are provided in the housing 9 and a shaft I4 is journaled therein. A spiral gear I5 is fast on the shaft I4 intermediatethe bearings I0 and II, and a spiral gear I6 is fast on the shaft I4 intermediate the bearings i2 and I3.

The spiral gear I5 meshes with a spiral gear ll slidably and rotatably mounted on a sleeve l8 disposed about the shaft I9. The shaft I9 has a socket 20 at the inner end thereof. A clutch member 2! is mounted on the shaft l9 and. is journaled in a housing 22 supported on the inner side of the side frame member 6. One end of the spindle of the supply roll is mounted in the socket 29, and a clutch member on the spindle coopcrates with the clutch member 2| to rotate the supply spindle when the clutch member 2i is driven. The other end of the supply spindle is suitably journaled in a bearing in the other side member of the machine.

The spiral gear I6 meshes with a spiral gear 23 keyed to and slidable on the shaft 24, the key 25' (Fig. 4) connecting this gear to the shaft. A shaft 25 is axially aligned with the shaft 24 and 55 has a socket 26 therein in which one end of the spindle of the take-up roll may be mounted, the other end of said spindle being journaled in a suitable bearing in the other side frame member of the machine. The shafts 24 and 25 provide a sectional shaft so that the shaft 24 may be rotated independently of the shaft 25, in which the spindle socket is provided, and in this way a retroactive drag on the take-up spindle is avoided when the shaft 24 is rotated to drive the supply spindle. A clutch member2'l is provided on the shaft 25 which cooperates with a clutch member on the take-up spindle to drive this spindle when the clutch member 2! is operated. The shaft 24 extends outwardly of the housing 9' and has a hand wheel 28 fast thereon. When the hand wheel'28 is turned in one direction, the interengagement of the teeth of the spiral gears 23 and I6 causes the spiral gear 23 to slide along the shaft 25 to disengage the teeth 30 on the spiral gear 23 from the teeth 29 on the clutch member 27, and the socket at the end of the spiral gear 23 opposite the teeth 29 engages the tooth 3| on the rotatable part of the thrust bearing 3|. The thrust bearing is disposed about the shaft 24 and the fixed part thereof is retained in the housing 9 while the rotatable part is keyed to the shaft 24 by an extension of the tooth 3|. The spiral gear 23 is shown in the last described position in Fig. 3.

' Regardless of which direction the hand wheel 23 is rotated the interengagement of the teeth of the spiral gears 23 and I6 always rotates the shaft l4. However, when the spiral gear 23 is rotated in the direction which causes interengagement of the clutch teeth 29 and 30, the interengagement of the teeth of the spiral gears I5 and I 1 causes the gear I! to shift on the sleeve l8 into the position shown in Fig. 5 in which position the clutch teeth 32 on the spiral gear I! are disengaged from the clutch teeth 33 on the clutch member 2| and when the parts are so disposed the shaft 9 and the clutch member 2| are not rotated with shaft l4. When the hand wheel 28 is rotated to cause the spiral gear 23 to engage the thrust bearing 3|, the interengagement between the teeth of the spiral gears l5 and I1 causes the spiral gear I? to so slide on the sleeve l8 that the clutch teeth 32 thereon engage the clutch teeth 33 whereby the clutch member 2| is rotated with the shafts l4 and 24. The thrust incident to the engagement of the teeth 32 with the teeth 33 is dissipated by the thrust bearing I9 that is engaged by the collar 26 fast on the shaft H1 at the end opposite that having the socket 20 therein. Therefore, the spindle of the supply roll is rotated and the gelatin band is unwound from the take-up roll and wound onto the supply roll.

Since the band B may be easily wound in either direction it may be properly oriented on the bed 1 to locate the matrix thereon in the proper position. Facile winding in opposite directions is particularly advantageous to vary the margins on the sheets receiving impressions from the matrix and to compensate for line spacing on the sheets so that impressions may be made on the lines of the sheets when so desired. Preferably, the gelatin band is drawn tightly across the bed 1 to insure clean clear-cut impressions and to this end a brake device operated by the handle 34 (Fig. 1) may be provided. One such brake device suitable for use in this machine is disclosed in my copending application, Serial No. 565,283, filed September 26, 1931, although any other suitable brake device may be employed to hold the supply and take-up spindles against rotation in an of the spindles may be directly connected to the operating shaft of the winding mechanism while the other of the spindles is driven from a shaft which is constantly operated during operation of the winding mechanism. F u r t h e r m o r e, clutches are associated with each of the spindles, and these clutches are so arranged that one of the clutches is always disengaged when the other is engaged so that but one of the spindles is driven upon a given operation of the winding mechanism.

While I have illustrated and described a selected embodiment of my invention it is 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 forth but desire to avail myself of such changes and alterations as fall within the purview of the following claims:

I claim:

1. A winding device of the kind adapted for I use in a duplicating machine or the like wherein supply and take-up rolls are mounted at opposite ends of a bed or the like so that a band stretched over the bed may be wound onto one of said rolls as it is unwound from the other of said rolls, a driving shaft aligned with one of said rolls, a sectional shaft aligned with the other of said rolls, driving devices for the rolls respectively mounted on said driving shaft and one section of said sectional shaft, slidable means respectively mounted on said driving shaft and the other section of said sectional shaft and detachably engageable with the respective driving devices, the sections of said sectional shaft rotating together only when the slidable means thereon engages the driving device thereon, means interconnecting said slidable means and controlling sliding movement thereof on said shafts, one of said slidable means being keyed to the shaft on which it is mounted, and means for imparting rotative movement to the shaft on which the slidable means is keyed to cause the slidable means on this shaft to engage the driving device on this shaft and to cause the slidable means on the other of said shafts todisengage the driving device thereon upon movement of the means for imparting rotative movement in one direction and to cause the slidable means so engaged to disengage the driving means on the same shaft and to cause the other slidable means to engage the driving means on the same shaft upon movement of the movement imparting means in the other direction.

2. A winding device of the kind adapted for use ina duplicating machine or the like wherein supply and take-up rolls are mounted at opposite ends of a bed or the like so that a band stretched over the bed may be wound onto one of said rolls as it is unwound from the other of said rolls, a driving'shaft aligned with one of said rolls, a driving device fast on said shaft and engageable with said roll, a sectional shaft aligned with the other of said rolls, a driving device fast on one section of said sectional shaft and engageable with the other of said rolls, a part slidably and rotatably mounted on said driving shaft and detachably engageable with the driving device on said shaft, a part slidably and non-rotatably mounted on the other section of said sectional shaft and detachably engageable with the driving device on said shaft, means interconnecting the slidably mounted parts and controlling sliding movement thereof, the sections of said sectional shaft rotating together only when the slidable part thereon engages the driving device thereon, and means for rotating the section of said sectional shaft on which the slidable part is mounted whereby when said section of said sectional shaft is rotated in one direction the slidable part thereon engages the driving device on said sectional shaft and the slidable part on the driving shaft disengages the driving device thereon and rotation of said section of said sectional shaft in the other direction disengages the slidable part on said sectional shaft from the driving device thereon and engages the slidable part on the driving shaft with the driving device thereon. a

3. A winding device of the kind adapted for us in a duplicating machine or the like wherein supply and take-up rolls are mounted at opposite ends of a bed or the like so that a band stretched over the bed may be wound onto one of said rolls as it is unwound from the other of said rolls, a driving shaft aligned with one of said rolls, a sectional shaft aligned with the other of said rolls, driving devices for the rolls respectively mounted on said driving shaft and one section of said sectional shaft, gears slidably mounted respectively on said driving shaft and the other section of said sectional shaft and detachably engageable with the respective driving devices, the sections of said sectional shaft rotating together only when the gear thereon engages the driving device thereon, an elongated shaft extending between said driving shaft and said sectional shaft and having gears fast thereon and respectively meshed with the gears on said driving and sectional shafts, one of said gears being keyed to the shaft on which it is mounted, and means for imparting rotative movement to the shaft on which the gear is keyed to cause the gear on this shaft to engage the driving device on this shaft and tocause the gear on the other of said shafts to disengage the driving device thereon upon movement of the means for imparting rotative movement in one direction and to cause the gear so engaged to disengage the driving means on the same shaft and to cause the other gear to engage the driving means on the same shaft upon movement of the movement imparting means in the other direction, the engagement and disengagement of said gears and driving devices occurring during the initial part of the rotative movement, the remaining part of the rotative movement in a given direction effecting rotation of the roll engaged with the driving device engaged with the gear on the same shaft whereby the band is withdrawn from the other roll and wound upon the rotated roll during rotative movement of the rotated roll.

4. A winding device of the kind adapted for use in a duplicating machine or the like wherein supply and take-up rolls are mounted at opposite ends of a bed or the like so that a band stretched over the bed may be wound onto one of said rolls as it is unwound from the other of said rolls, a driving shaft aligned with one of said rolls, a sectional shaft aligned'with the other of said rolls, driving devices for the rolls respectively mounted on said driving shaft and one section of said sectional shaft, spiral gears slidably mounted respectively on the driving shaft and on the other section of said sectional shaft and detachably engageable with the respective driving devices, the sections of said sectional shaft rotating together only when the gear 5 thereon engages the driving device thereon, means interconnecting said spiral gears for conjoint rotation, means for effecting conjoint rotation of said spiral gears and movable in one direction to engage the spiral gear on the sec- 10 tional shaft with the driving device thereon and to disengage the spiral gear on the driving shaft from the driving device thereon and movable in the other direction to engage the spiral gear on the drive shaft with the: driving device thereon 15 and to disengage the spiral gear on the sectional shaft from the driving device thereon, continued conjoint rotation of said spiral gears in a given direction winding the band onto the roll engaged with the driving device engaged in turn with the 20 spiral gear on the same shaft, and thrust bearings respectively associated with each of said shafts and adapted to dissipate the thrust incident to the engagement of the spiral gear on each shaft with the driving device on the shaft. 25

5. A winding device of the kind described and including a sectional shaft having a handle on one section thereof, a part on the other section of said shaft and adapted to be detachably connected to a spindle or the like, a slidable member 30 keyed to the first named section of said shaft and adapted to rotate with said section of said shaft, and means cooperating with said member to slide said member along said section of said shaft upon movement of said handle in one direc- 35 tion to engage said member with said part and to slide said member along said shaft in the other direction to disengage said member from said part upon movement of said handle in the other direction. 40

6. A winding device of the kind described and including a housing, a shaft journaled in said housing and having a part at one end thereof adapted to be connected to a spindle or the like,

a slidable member mounted on the medial part 45 of said shaft and adapted to receive movement from a source of power and movable in one direction to be detachably engaged with said part to impart movement thereto and movable in the other direction to be disengaged from said part, 50 a thrust bearing mounted in said housing, and means on the end of said shaft opposite said part engageable with said thrust bearing to dissipate the thrust incident to the engagement of said member with said part.

7. A winding device of the kind described and including a sectional shaft having a handle on one section thereof, a part on the other section of said shaft and adapted to be detachably connected to a spindle or the like, a member slid- 60 ably and non-rotatably mounted on the first named section of said shaft, means cooperating with said member to slide said member along said section of said shaft upon movement of said handle in one direction to engage said member 05 with said part and to slide said member along said shaft in the other direction to disengage said member from said part upon movement of said handle in the other direction, and means engageable by said member when disengaged 7 from said part and dissipating the thrust imparted to said member incident to the operation of said handle in said other direction.

' JOHN J. FLANIGAN.

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