US759250A - Paper-feeding mechanism. - Google Patents

Description

PATENTED MAY'IO, 1904.

J. s. DUNCAN. PAPER FEEDING MECHANISM.

APPLICATION FILED MAR. 21. 1903.

3 SHEETSSHEET 1.

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No. 759,250. PATEN-TED MAY 10, 1904. J. S. DUNCAN.

PAPER FEEDING MECHANISM.

APPLICATION FILED MAR. 21. mos.

N0 MODEL. 3 SHEETS-SHEET 2.

UNITED STATES Patented May 10, 1904.

PATENT OFFICE.

JOSEPH S. DUNCAN, OF CHICAGO, ILLINOIS, ASSIGNOR TO ADDRESSO- GRAPH COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

PAPER-FEEDING MECHANISM.

SPECIFICATION forming part of Letters Patent No. 759,250, dated May 10, 1904.

Application filed March 21, 1903.

To all LUII/OTH/ it may concern.-

Be it known that I, J OSEPH S. DUNCAN, a citizen of the United States, residing at Chi cago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Paper-Feeding Mechanism, of which the following is a specification.

This invention relates to paper feeding mechanism particularly adapted for addressing-machines of the type shown in Letters Patent N o. 57 9,7 06, dated March 30, 1897, and also in my application, Serial No. 148,901, filed concurrently herewith.

The object of the invention is to. provide means for properly feeding a sheet of paper to receive successive impressions from the printing-forms used in connection with an addressing-machine.

Further objects of the invention relate to the provision of simple means for automatically operating the feeding devices, so that paper of different thicknesses will be properl y provided for and fed and so that the printing impressions may be spaced apart at such intervals as may be desired.

I have chosen to illustrate the invention as constructed and arranged for operation on an addressing-machine like that illustrated in my concurrent application, Serial No. 148,901; but it will be understood that the invention may be used with other machines with equally satisfactory results.

In the accompanying drawings, Figure 1 is a side elevation of an addressing-machine with the feeding attachment thereon. Fig. 2 is a top plan view of the feeding attachment disconnected from the machine. Fig. 3 is a sectional view on the line 3 3 of Fig. 2. Fig. 4: is a front elevation of the feeding attachment, showing also the gooseneck form of the platenarm. Figs. 5 and 6 show the clutch mechanism for operating the feed-rollers in open and locked positions, respectively.

Referring to the drawings, in which like numerals of reference designate corresponding parts in the several figures, Fig. 1 is a duplicate of the corresponding figure of my concurrent application, Serial N 0. lt8,901, and reference to said application is made for a detailed description of the construction and op- Serial Na 148,900- (No model.)

eration of the machine. So far as this invention is concerned it will only be necessary to explain that a chain of printing-forms 32 is supported on a revoluble drum 36, which is fed step by step by the feeding-dog 55, carried on an arm 56, rigid with the arm 20, carrying the platen 107 and pivotally mounted on a shaft 21. The envelop or other material to be printed upon is placed in position upon a plate 76, which for convenience is designated the envelop-plate, and this envelop-plate is pivoted on a fixed stud 77 and a springpressed stud 78. The machine is operated by reciprocating the pedal-lever 27, provided With a foot-rest 31 and connected with the platenarm and communicating proper movements to all the operative parts of the machine. The paper-feeding attachment is fastened to the envelop-plate, and for purposes of convenience each machine may be provided with two envelop-plates, one for ordinary use and the other having the feeding attachment permanently secured thereto, for it will be understood that the envelop-plate is readily removable from the machine by withdrawing the spring-pressed stud 78. I prefer also when constructing a machine with which the paperfeeding attachment is to be used to provide the platen-arm with a gooseneck 20, Fig. 4, to allow for the passage of a wide sheet of paper through the machine.

The paper-feeding attachment comprises a frame which has an upper member 7 and a lower member 7 and a yoke member 7", the members 7 and 7 being in the form of arms connected to the yoke member and projecting outwardly therefrom and a suflicient distance apart to permit the paper to be fed between them. The frame may be permanently connected with the envelop-plate 76 or it may be fastened thereto by clamps 8, so as to be readily removable. Feed-rollers 9 are carried by a shaft 10, which is mounted in bearings in the arms 11, projecting forward from the upper member 7 of the frame, and these rollers are arranged above the presser-rollers 12, which are carried by the frames 13, pivotally mounted on the rod 14, which is supported in the guide-teeth 15, projecting forward from the lower member 7 of the frame and at the 'of the attachment at 39.

sides of the presser-roller frames. The frame carrying each presser-roller is preferably of skeleton form, as shown in Figs. 2 and 3, and the presser-roller is held up to its work by a plate-spring 16, fulcrumed on a cross-bar 17 at the rear end of the presser-frame and back of its pivot, with its forward end engaged beneath the rod 14 and its rear end adjustably fastened by a screw 18 to the lower member 7 of the frame. It is apparent, therefore, that the tension of the plate-spring may be readily adjusted by the screw 18, according to the thickness of the paper to be fed, so that the rollers 12 will hold it up in operative engagement with the feed-rollers, but not so tight as to tear or mar the paper or blur the impressions thereon. The presser-rollers may be temporarily carried a sufficient distance away from the feed-rollers to permit the insertion of the paper therebetween by operating the shaft 19, which is provided with a crank-handle 22 and has bearings in the guideteeth 15. This crank-shaft is preferably round throughout its length, except at those portions which pass beneath the presser-frames, where it is provided with a fiat upper face 28 to engage the fiat under face 24 of the crossbar 17. By this arrangement the shaft 19 operates as a lever against the presser-frames to force the rear end thereof up and the forward end, carrying the rollers 12, down away from the feeding-rollers. l/Vhen the crank is released, the shaft will return to its normal position. The feed-roller shaft is revolved a limited distance intermittently by means of a friction-clutch mechanism operated simultaneously with the platen. The friction-clutch is shown in its open position in Fig. 5 and in its locked position in Fig. 6 and in its normal position at rest in Fig. 1. It comprises a friction-band arranged to operate on a roller 25, mounted on the shaft 10, and is composed of the band members 26 and 28, which are pivotally connected at 29. The members are held in place on the roller by a yoke 30, pivotally connected with the member 26 at 33 and pivotally connected at its other end to a fulcrumlever 34, which is arranged eccentric to said yoke and provided with a knife-edge fulcrum 35, working in a socket 36 on the member 28. The fulcrum-lever 34 is connected by a link 37 with a crank-lever 38, pivoted on the frame A spring 40 is attached to the lower end of the crank-lever and to the frame of the attachment and operates to hold the crank-lever up, as shown in Fig. 1, with the clutch in locked position. The crank-lever is operated by a post 41, which is screw-threaded and adjustable vertically in a bracket-arm 42 on the platen-arm, the arrangement being such that when the platenarm is depressed the post will engage and swing the crank-lever 38 on its pivot. As the crank-lever swings downward the fulcrumlever 34 will be slightly swung on its pivot to open the friction-band, so that it can turn freely on the roller 25 to the position shown in Fig. 5, when the platen is at the downward limit of its movement. Thereupon the platenarm starts to rise, and the pressure being removed from the crank-lever the fulcrum-lever will be swung back to the position shown in Fig. 6 to clamp the band members rigidly on the roller to turn the feed-rollers as the platen is moving to its elevated position at rest. The clutch is therefore released during the downward movement of the platen and during the printing operation, and the paper is not moved; but immediately after the printing operation and while the platen is resuming its initial position the feed-rollers are operated to adjust the paper. For the purpose of preventing any accidental movement of the feed-rollers in a reverse direction I prefer to provide a clamping-jaw 43, which is fastened to the attachment-frame and has its end carried around and over the feed-roller shaft and held by the tension of a spring 44, mounted on a screw-bolt 45, passing through said end into the body of the arm. This spring-clamp will produce sufficient braking power on the shaft to prevent it from moving in a reverse direction, which would have a tendency to disarrange and probably tear the paper.

My invention is particularly useful for the purpose of striking off a list of names and addresses from a chain of printing-forms for various purposes. This list can be kept for reference purposes, for pay-rolls, time-cards, and for many other purposes. It is for this reason desirable to provide a line adjustment, so that the printing impressions may be regulated to correspond with ruled lines and spaced apart in anyldesired manner. For this purpose the threaded post 41 is splined to the bracket-arm, so as not to turn, and is provided with a nut 46, operating beneath a scale-plate 47 and carries on its upper end an index-pointer 48. This nut is provided on its upper face with a scale, and beneath the bracket-arm I provide the post with a lock-nut 49. In practice I have provided the post with twenty-seven threads to the inch and divided the top face of the nut into twenty-four divisions, so that I may easily adjust the post one twenty-fourth of a twenty-seventh of an inch. After the nut is once set the locking-nut may be turned to make the adjustment permanent.

It will be readily understood from the foregoing discription that the attachment can be used with machines of the character shown in my concurrent application Serial No. 148,901 whether or not they are of the same construction, and it will therefore not be understood that I limit the present invention in any way to the machine illustrated in Fig. 1. The feeding attachment operates automatically, and a list of impressions can be taken from a chain of printing-forms rapidly and used for a variety of purposes. As before stated, it has been found very useful to make up a chain of forms bearing the names of employees in large establishments and running off a list therefrom for pay-rolls and. for checking purposes, and it is obvious that such lists would be useful for many other purposes which it is not necessary here to explain. The attachment is constructed so that it will operate properly with light or comparatively heavy paper and. with the im pressions spaced in any manner desired, and the adjustments can be made easily and quickly to change from paper of one thickness to another and to space the impressions in a different way. In the embodiment of the invention herein shown and described the motion is communicated to the feeding devices from the platen-arm of the machine, and while this is the desirable construction I do not limit the invention specifically thereto. The two members 7 7 of the attachment-frame are not connected at their outer ends, so that paper considerably wider than the length of these members can be operated upon and fed through the attachment, which enables the printing to be done on large sheets of paper for temporary or permanent records. As before stated, the attachment maybe made entirely separate from any of the parts of the add ressing-machine or it may be permanently attached to the envelop-plate, in which case another envelop-plate would preferably be provided for use when simply printing envelops. it is apparent also that the attachment can be constructed and adjusted on the envelo 'i-plate to form a gage and guide for the operator in positioning the envelop on the plate, in which case it would not be necessary for the attachment to operate, and the post 41 could therefore be adjusted out of operative relation to the actuating-lever 38 and the envelops arranged on the plate against the attachment. The threaded post 41 and nut 46 provide for a very fine adjustment of the feeding movement, and the scales on the nut and the plate 47 enable the adjustment to be readily made or changed. By noting the position of the indicator when adjustments are made for certain lengths of feed to correspond to certain rulings, for example, changes in the adjustment can be very readily and quickly made without necessitating any trials.

\Vithout limiting myself to the exact construction and arrangement of parts herein shown and described, what I claim, and desire to secure by Letters Patent, is

1. A )aper-feeding attachment for add ressing-machines comprising a frame, a shaft, feedrollers on the shaft, a friction-clutch comprising a roller mounted on the shaft, a band to frictionally engage said roller, and means for operating said clutch to intermittently revolve the shaft a limited distance.

2. A feeding attachment for addressing-machines comprising a frame, a shaft, feed-rollers on the shaft, a frictionclutch comprising a roller mounted on the shaft, an expansible band to frictionally engage said roller, and means for opening and adjusting and then locking said band and operating the same to intermittently revolve the shaft a limited distance.

3. A feeding attachment for addressing-machines comprising a frame, a shaft, feed-rollers on the shaft, a frictionclutch comprising an expansible frictional band, and means for intermittently locking the band to and operating the shaft.

4. A feeding attachment for addressing-machines comprising a frame, a shaft, feed-rollers on the shaft, a friction-clutch comprising a friction-band, a lever, and means for operating the lever to open and adjust the band in a reverse direction to the movement of the shaft and then lock the band with the shaft and turn the latter to operate the feed-rollers.

5. A feeding attachment for add ressing-machines comprising a frame, a shaft, feed-rollers on the shaft, a roller rigid on the shaft, a friction-band on said roller and comprising two members pivoted together, a yoke pivoted to one member, a fulcrum-lever carried by said yoke and fulcrumed against the other member, and means for operating said fulcrumlever to open and lock the band on said roller.

6. A feeding attachment for addressing-1nachines comprising a shaft carrying feed-rollers, a roller on said shaft, a friction-band operating on said roller and comprising two pivoted members, a yoke pivoted to the end of one member, a fulcrum-lever carried by the yoke and having a knife-edge fulcrum engagement against the other member, an actuating-lever connected with said fulcrum-lever, and means for operating said actuating-lever to shift the fulcrum-lever to open the band and move it a limited distance around its roller and then lock the band on said roller to turn said shaft a limited distance.

7. A feeding attachment for add ressing-machines, comprisinga main frame,parallel feed, rollers supported on the frame, a presserframe pivotally mounted on the main frame and projecting beneath each feed roller, presser-rollers carried by said presser-frames adjacent to the feed-rollers, and plate-springs operating on said frames to carry said presserrollers with the paper thereon into operating engagement with the feed-rollers.

8. A feeding attachment for addressing-machines comprising a main frame, feed-rollers supported on the frame, a rod carried by the frame, presscr-frames pivoted on said rod beneath the feed-rollers, rollers carried by the presser-frames, and a spring-plate fastened to the main frame and passing over the rear ends of each presser-frame and under said rod to carry the rollers on the presser-frames up to the feed-rollers.

9. A feeding attachment for add ressi ng-machines comprising a main frame, guide tceth, feeding-rollers and means for operating them, presser-frames pivotally mounted beneath the feed rollers and between the guide teeth, springs operating on the rear ends of said presser-frames, and a rock-shaft constructed to operate on the presser-frames in opposition to the tension of said springs.

10. A feeding attachment for addressingmachines comprising a frame and feed-rollers supported on the frame, in combination with the oscillating platen-arm of the addressingmachine,a friction-band,and means carried by said arm for operating said friction-band and communicating an intermittent movement to the feed-rollers.

11-. A feeding attachment for addressingmachines comprising a frame, feed-rollers supported on the frame, presser means for holding the paper in contact With the feed-rollers, in combination with the oscillating platenarm of the addressing machine, a frictionband, and means carried by said arm for operating said friction-band and communicating an intermittent movement to the feed-rollers.

12. A feeding attachment for addressing machines comprising a frame, feed-rollers, a friction-band for operating said rollers, in combination with the oscillating platen-arm of the addressing-machine, and apost carried by said arm to actuate said friction-band.

13. A feeding attachment for addressingmachines comprising a frame, feed-rollers and means for operating them comprising, anactuating-lever and a friction-band, in combination with the oscillating platen-arm of the addressing-machine, and a post carried by said platen-arm and arranged to engage and oper ate said lever.

14. A feeding attachment for addressingmachines comprising a frame, feed-rollers and means for operating them comprising an actuating-lever, in combination with the oscil lating platen-arm of the addressing-machine, and a post angularly arranged on the platenarm to engage and operate said lever.

15. A feeding attachment for addressing machines comprising a frame, feed-rollers on the frame, and means for operating said feedrollers, in combination with the oscillating platen arm of the addressing machine, a bracket on said arm, a post having threaded engagement with the bracket and arranged to actuate said operating means, a scale adjacent to the post, a nut operating on the post heneath the scale and above the bracket,and provided on its upper face with a peripheral scale, and a pointer carried by the post.

JOSEPH S. DUNCAN.

Vitnesses:

WVM. O. BELT, HELEN L. BECK.

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