US848556A - Copying-machine. - Google Patents

Description

PATENTED MAR. 26,1907.

- A. n. KLABER.

COPYING" MAGHINEI. APPLICATION FILED 110V 22, 1 906.

2 SHEETS-SHEET 1.

INVENTOR' ATTORNEY...

THE NORRIS PETER: :o-. wasumcrcn, D. c.

PATENTED MAR. 26, 1907'. A- D. KLABBR. COPYING MACHINE; APILIGATION FILED NOV. 22, 1906@ 2 SHEETS-'SHEET 2.

INVENTOR ,0? m

WITNESSES ATTORNEY.

THE NORRIS PETERS 1:0,, wnsumarzm, v c,

- tends close to or touches the web 11.

UNITED STATES PATENT OFFICE.

COPYING-MACHINE.

Specification of Letters Patent.

Patented. March 26, 1907.

Ap lication filed November 22,1906. Serial No. 344,576.

To all whom, it natty concern.-

Be it known that I, AUGUSTUS D. KLABER, a subject of the King of Great Britain, residing at London, England, have invented a cer tain new and useful Improvement in Copying-Machines, of which the following is a specification.

This invention concerns copying-machines of the type commonly used in offices for obtaining impressions of letters and other matter written either by hand or on the typewriter. The object of the invention is to effect certain improvements in the construction and arrangement of the parts of machines of this character, and particularly of machines of the type disclosed in an application filed by me October 28, 1905, and serially numbered 284,920.

The novel features of my invention are illus trated in the accompanying drawings, which show the preferred embodiment thereof, and in which Figure 1 is a central section of the machine. Fig. 2 is a detail view showing the construction of the supply-roller. Fig. 3 is a plan view of the receiving-roller and cutting device, and Fig. 4 is a horizontal section on line 4 4 of Fig. 1.

Referring to the drawings, the machine consists generally of a frame having mounted thereon a supply-roller 1, onwhich a continuous web of copying-paper is wound, two copying-rollers 2 and 8, between which the web and the impression-sheets pass, a receiving-roller 4, on which the web is wound after passing between the copying-rollers, and a cutting device for cutting the web upon the receiving-roller. The frame has side members 5 5, on the upper edges of which are mounted the upright end members 7 of the casing for the supply-roller 1. Secured to these end members is a semicircular sheetmetal piece 8, having pivoted thereto at one of its edges a similar sheet-metal piece 9. The edge of the piece 8 opposite that to which the piece 9 is pivoted is curled, as indicated at 10, to form a rounded surface, over which the web of copying-paper 11 is drawn, and the adjacent edge of the piece 9 extends in close proximity to the curled portion 10, so that when the casing is closed this edge lelx- 1e pieces 8 and 9 are so constructed that when the latter is in the closed position the edges adjacent to the pivot are in engagement. In this Way the casing for the supply-roller 1 is practically air-tight, and little drying of the web of copying-paper takes place.

In Fig. 2 is shown the construction of the supply-roller 1. This consists of a metallic tube 12, having a slot cut therein and a strip 13 secured within the tube and having a part extending through the slot beyond the pe riphery of the tube. This strip is of thin metal, so as to yield somewhat, but exerts an outward pressure whenever depressed. In this way a roll of the copying-paper is held firmly upon the supply-roller even though it or the tube on which it is wound does not fit tightly upon the roller. In the ends of the tube 12 are secured end members 14, having integral pintles projecting therefrom and forming pivots for supporting the roller in bearings in the end members 7 of the casing.

Pivotally mounted on the members 5 5 of the frame are two bell-crank levers 15, the outer ends of which are connected by a rod 16, having a handle 17 thereon. In the opposite ends of these levers is pivotally mounted the copying-roller 2, which is preferably of rubber. The-o ther copying-roller 3 is mounted for rotation in bearings in the frame mem bers 5 directly below the roller 2 and in the position shown in Fig. 1. This roller preferably has a hard surface. When the roller 2 is in the position illustrated in Fig. 1, it and the roller 3 are pressed into hard engagement but by raising the handle 17 roller 2 is carried away from roller 3 to avoid injury to the surface of roller 2 when the machine is not in use.

Extending across between the side frames 5, adjacent and parallel to the copying-roller 2,is a rod 18, and looselymounted on this rod are a plurality of strippers 19. carrying these strippers, is so positioned that the strippers swing by gravity to a position in which they bear against the surface of the roller 2. On the shaft of the roller 3, beyond the frame member 5, is a gear 20, meshing with a pinion 21, mounted on a stud-shaft 22, which has secured thereto an operatinghandle 23. Mounted upon the side frames 5 is a feed-board 24, so located with reference to the copying-rollers that the impressionsheets are fed therefrom onto the upper surface of the roller 2 and between that roller and the web of copying-paper. The sheets pass around substantially half the circum- The rod 18,

ference of the roller 2 in contact with the web, which presses lightly thereon and smooths the sheet out, and then between the copying-rollers 2 and 3, which produce the impression upon the web. They then fall into a suitable receiving-tray, while the web is carried down to and wound upon the receiving-roller 4. If the impression-sheet tends to adhere to the copying-roller 2, it is stripped therefrom by the strippers 9, which bear at all times against the periphery of the roller 2.

The receiving-roller 4 consists of a shaft having end members 25 mounted thereon and a plurality of bars 26 extending between these end members with their ends entering openings therein. As each impression on the web, together with the margins allowed therefor, must form one convolution upon the receiving-roller, it is highly desirable that the circumference of this roller be adjustable to adapt the machine for use with sheets of varying dimensions. I therefore provide in each of the end members 25 a number of openings 27 greater than the number of bars 26 and spaced at unequal distances from the center of the roller, as shown in Fig. 1. With this construction when the circumference of the receiving-roller desired is obtained, the bars 26 may be positioned in such of the openings 27 as will give this circumference. The receiving-roller is driven by a belt 28, running on pulleys mounted one on the shaft of the roller 3 and the other on the shaft of the receiving-roller 4. In order to cut the web of copyingpaper upon the receiving-roller when a number of impressions have been taken, I provide a knifeblade mounted upon the frame of the machine and actuating devices for moving this blade toward and away from the receivingroller. This blade is shown at 29 and is secured on a bar 30, having inclined slots cut therein, such that when the bar is moved lengthwise by the handle 31 it is caused to move toward the receivingroller, as described in my pending application above mentioned. In order to effect a clean cut, a rod 32 is mounted upon the receiving-roller and has a slot cut therein into which the knife-blade enters, the walls adjacent to the slot holding the paper against being pressed inwardly by the blade'. Immediately in rear of this rod, around the receiving-roller, is a thin sheet-metal strip 33, pivoted upon the end members of the receiving-roller at 34. A spring 35 is secured at one end to this strip and at the other to the end member of the receiving-roller and operates to hold the pivoted strip 33 either in the position in which it is shown in Fig. 1, with its edge entering a groove in a rod 36, extending between the end members of the receiving-roller, or in a position in which it bears against the rod 32. One of the pivots of this strip extends through the end member of the roller and has an operating-handle 37 secured thereon. This spring-actuated strip is used for gripping the end of the web of copying-paper to the receiving-roller, and it will be seen that the strip is positioned directly in rear of the point on the receiving-roller where the web is severed, so that when the web is cut its end can readily be placed against the rod 36, while the strip 33 is held in the open position by spring 35 and the strip then turned by handle 37 to grip the web between it and the rod 36. The strip 33 may, if desired, be thrown automatically to this gripping position. hen the strip is moved to the open position after making a cut, a shield 38, overlying the knife-blade 29, lies directly below it, and therefore the initial movement of the receiving roller when rotation thereof is commenced causes the strip to engage the shield 38 and be turned thereby to the closed position, in which it grips the end of the web. When the knife-blade has been operated, the severed portion of the web may not fall away from the receiving-roller immediately. If not, the operator may rest one finger on shield 38 and turn handle 37 with his thumb, thus turning strip 33 on its pivot and throwing the end of the severed portion of the web down upon his finger, when he can readily grasp it. I

In order that the web wound on the receiving-roller may always be cut at the proper point, I provide means for indicating when the slot in the rod 32 is directly opposite the knife-blade 29. Secured on 'one of the side frames 5 of the machine is a bracket 39, having an inwardly-turned finger 40 at its end which closely overlies one of the end members 25 of the receiving-roller. On this end member is a mark 41, so positioned that when it is directly under the finger 40 the slot in rod 32 is directly opposite the knife-blade 29, and the operator can by glancing at this indicator tell when he may operate the cutting device.

In a machine of this type in which the web is wound on a receiving-roller and out while wound thereon it is of great importance that the impression-sheets be introduced into the machine when the rer eivingroller is in a definite position, so that the impression'made therefrom will be so disposed upon the receiving-roller that the cut through the web will leave just the proper amount of margin on either side of the impression. I therefore provide an automatically-operated feeding device for the impression-sheets controlled by the receiving-roller. Mounted in hearings in the side frames 5 is a rock-shaft 42, onwhich is secured an arm 4-3, having a stud 44-, at its end. This stud engages the periphery of a cam 45, keyed upon the shaft of the receiving-roller 4i. Secured on roek-shaft42 near its ends IIO and extending upwardly therefrom are two which extends through a slot in the feed-b oard 24. The adjustment of the feeder-arms 49 relatively to the arms 48 is secured by means of a set-screw 50, extending through a slot in the arm 48 and into a threaded opening in the feeder-arm 49. i By means of this mechanism each revolution of the receivingroller 4 rocks shaft 42 by means of (am 45 and arm 43, and thus moves the ends of the feeder-arms 49 from a position at the rear end of the slots in the feed-board 24 to the forward end of those slots-and then back again, and in this forward movement the feeder-arms carry an impression-sheet which has been laid upon the feed-board to a position in which it is gripped between the copy ing-roller 2 and the web of copying-paper which is drawn down from the supply-roller 1. Since the length of the arms of the feeding mechanism is adjustable, the machine can readily be adapted for operation with impression-sheets of various sizes.

The pivotally-mounted strippers 19 prevent an impression-sheet from being carried around by the copying-roller 2. In order to prevent a sheet from being carried with the web to the receiving-roller, I provide a strip per-plate 51, extending in close proximity to or actually touching the web of copying paper passing from roller 3 to the receivingroller 4, so that if an impression-sheet is carried along with the web it will be detached by this stripper-plate. The plate is secured upon the ends of arms 52, whose opposite ends are bifurcate and astraddle the shaft 42. I/Vhen the stripperplate is in oper ative position, as shown in Fig. 1, it is supportedby the arms 52 bearing against studs 53 on the side frames. In order to give free access to the parts of the machine-as, for instance, when threading the web of copyingpaper through the machine-this stripperplate is so mounted that from its operative position to an inoperative position, as shown in dotted lines in Fig. 1, and in this position the operator can readily pass his hand under the copying-roller 3 in order to grasp the end of the web of copyingpaper and carry it over to the receivingroller.

Having now described my invention, what I claim as new therein, and desire to secure by Letters Patent, is as follows: i

1. In a copying-machine, the combination of a supply-roller on which acontinuous web is wound, two copying-rollers between which the web and the impression-sheets pass, means for rotating one of said rollers, a receiving-roller on which the web is wound after passing between said rollers, a cutting it can be moved device for cutting the web upon the receivingroller, and a movable part on the receivingroller rearward of the point thereon where the web is cut adapted to grip the end of the web, substantially as set forth.

2. In a copying-machine, the combination of a supply-roller on which a continuous web is wound, two copying-rollers between which the web and the impression-sheets pass, means for rotating one of said rollers, a receiving-roller on which the web is woundafter passing between said rollers, a gripping member pivotally mounted 011 said receivingroller, a second gripping member on said roller, and a spring connected to said pivoted member for causing it to grip the web between it and said second gripping member, substantially as set forth.

3. In a copying-machine, the combination of a supply-roller on which a continuous web is wound, two copying-rollers between which the web and the impression-sheets pass, means for rotating one of said rollers, a receiving-roller on which the web is wound after passing between said rollers, a movable part on said receiving-roller for gripping said web and a spring acting thereon to hold it in either the open or closed position, substantially as set forth.

4. In a copying-machine, the combination of a supply-roller on which a continuous web is wound, two copying-rollers between which the web and the impression-sheets pass, means for rotating one of said rollers, a receiving-roller on which the web is wound after passing between said rollers, means for rotating the same, a movable part on said receiving-roller and means actuated by the rotation of said receiving-roller for automatic ally closing said part to grip said web, substantially as set forth.

5. In a copyinganachine, the combination of a supply-roller on which a continuous web is wound, two copying-rollers between which the web and the impression-sheets pass, means for rotating one of said rollers, a receiving-roller on which the web is wound after passing between said rollers, a cutting device for severing the web on the receivingroller, and a part 011 said receiving-roller movable to throw the end of said severed portion away from the periphery of said roller, substantially as set forth.

6. In a copying-machine, the combination of a supply-roller on which a continuous web is wound, two copying-rollers between which the Web and the impression-sheets pass,

means for rotating one of said rollers, a re ceiving-roller on which the web is wound after passing between said rollers, a movable cutting device for severing the web upon the receiving-roller, a bar on the receiving-roller with which said device coacts and a movable part mounted upon said receiving-roller in rear of said bar, substantially as set forth.

7. In a copying-machine, the combination of a supply-roller on which a continuous web is wound, two copying-rollers between which the web of paper passes, means for rotating one of said rollers, a receiving-roller on which the web is wound after passing between said vice when the receiving-roller is in a definlte position, and means for ad ust1ng said device for feeding sheets of varying dimensions, substantially as set forth.

9. In a copying-machine, the combination of a supply-roller on which a continuous web is wound, two copying-rollers, means for pressing said rollers together, means for rotating one of said rollers, a feed-board so located with reference to said copying-rollers that the impression-sheets fed from said board are caused to pass around substantially half the circumference of one of said rollers in contact with said web and then between said rollers, a feed device for the impression-sheets movable relatively to said board and means for adjusting said device for feeding sheets of varying dimensions, substantially as set forth.

10. In a copying-machine, the combina tion of a supply-roller on which a continuous web is wound, two copying-rollers between which said web passes, means for rotating one of said rollers, a receiving-roller on which the web is wound after passing between said copying-rollers, and means for rotating the same, said receiving-roller having a pair of end members and parts extending between and supported at their ends on said end members and said parts being adapted to be mounted at varying distances from the axis of the roller, substantially as set forth.

11. In a copying-machine, the combination of a supply-roller on which a continuous web is wound, two copying-rollers between which said web passes, means for rotating one of said rollers, and a receiving-roller on which the web is wound after passing between said copying-rollers, said receivingroller consisting of two end plates and a plurality of bars extending between them with their ends entering openings in said plates, the number of openings in each of said plates being greater than the number of said bars,

substantially as set forth.

12. In a copying-machine, the combination of a supply-roller on which a continuous web is wound, two copying-rollers between which the web of paper passes, means for rotating one of said rollers, a receiving-roller on which the web is wound after passing between said copying-rollers, means for rotating the same, a cutting device mounted adj acent to said receiving-roller and movable toward and away from the same for cutting the Web wound thereon, and means for indicating the proper position of the receivingroller for operating said cutting device, substantially as set forth.

13. In a copying-machine, the combina tion of a supply-roller on which a continuous web is wound, two copying-rollers between which said web passes, a receiving-roller on which the web is wound after passing between said copying-rollers, means for rotating said receivin -roller and one of said copying-rollers, a cutting device mounted opposite said receiving-roller, means for actuating the same to cut the web upon the receiving roller, and a stationarily-mounted indicator coacting with a mark on the receiving-roller to indicate the proper position of said roller for operating said cutting device, substantially as set forth.

14. In a copying-machine, the combination of a supply-roller on which a continuous web is wound, two copying-rollers between which said web passes, a receiving-roller on which the web is wound after passing between said copying-rollers, means for rotating said receiving-roller and one of said copy ing-rollers, a rod mounted parallel and adj acent to said copying-rollers, and a stripper loosely mounted on said rod and bearing by gravity against one of said copying-rollers, substantially as set forth.

15. In a copying-machine, the combination of a supply-roller on which a continuous web is wound, two copying-rollers between which said web passes, me ans for rotating one of said rollers, a feed-board so located with reference to said copying-rollers that the impression-sheets fed therefrom are caused to pass around substantially half the circumference of one of said rollers in contact with said web and then between said rollers, a rod mounted parallel and adjacent to said copy ing-rollers, and a stripper for the impressionsheets loosely pivoted on said rod and bearing by gravity against one of said rollers, substantially as set forth.

16. In a copying-machine, the combina tion of a supply-roller on which a continuous web is wound, two copying-rollers between which the web and impression-sheets pass, a receiving-roller on which the web is wound after passing between said copying-rollers,

.tion of a supply-roller on which a continuous web is wound, two copying-rollers between which the web and impression-sheets pass, means for rotating one of said rollers, a receiving-roller on which the Web is Wound after passing between said copying-rollers, means for cutting the web upon the receiving-roller, and a casing for said supply-roller comprising two end members, a sheet-metal member secured thereto, and a second sheetmetal member pivoted to the first and adapted to fit tightly against the same when in the closed position, the free edges of said sheetmetal members extending in close'proximity to the web passing from said supply-roller out of the casing and one of said edges being curled, substantially as set forth.

18. I11 a copying-machine, the combination of a supply-roller having a continuous web wound thereon, a pair of'copying-rollers between which the web and impression-sheets pass, a receiving-roller on which the web is wound after passing between said copyingrollers, means for cutting the web upon the receiving-roller, and a stripper-plate mounted for movement from an operative position between said copylng and rece1v1ng rollers to an inoperatlve pos1t1on permlttmg free access to the parts of the machine, substantially as set forth.

19; In a copying-machine, the combination of a supply-roller having a continuous web wound thereon, a pair of copying-rollers between which the web and impression-sheets pass, a receiving-roller on which the web is wound after passing between said copyingrollers, means for cutting the web upon the receiving-roller, and a stripper-plate mounted between said copying and receiving rollers, its edge extending in close proximity to said web, substantially as set forth.

20. In a copying-machine, the combination of a supply-roller having a continuous web wound thereon, a pair of copying-rollers between which the web and impression-sheets pass, a receiving-roller on which the web is wound after passing between said copyingrollers, means for cutting the web upon the receiving-roller, and a stripper-plate pivotally mounted and adapted for movement about its pivot from an operative position in which its edge extends in close proximity to said web to an inoperative position permitting free access to the parts of the machine, substantially as set forth.

This specification signed and witnessed this 19th day of November, 1906.

A. D. KLABER.

Witnesses I. MOINTOSH, D. S. EDMoNDs.

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