US1201453A - Paper-feeding attachment for gordon presses. - Google Patents

Description

J. L. GIDEON.

PAPER FEEDING ATTACHMENT FOR GORDON PRESSES.

APPLICATION FILED FEB- 21.1913.

Patented Oct. 17, 1916.

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PAPER FEEDING ATTACHMENT FOR GORDON PHESSES.

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APPLSCATIQN FILED FEB. 2i, I913.

Patented Oct. 17,1916.

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PAPER-FEEDING ATTACHMENT FOR GORDON PRESSES.

Specification of Letters Patent.

Patented Oct. 17, 1916.

Application filed February 21, 1913. Serial N 0. 750,011.

To all whom it may concern:

Be it known that I, JOHN L. GIDEoN, a citizen of the United States, and a resident of Omaha, in the county of Douglas and State of Nebraska, have invented certain new and useful Improvements in Paper- Feeding Attachments for Gordon Presses, of which the following is a specification.

My invention relates to printing presses and more particularly to presses of the Gordon type.

It is the object of my invention to provide mechanism which may be quickly and easily attached to or removed from a press of the described class, and which will enable paper from a roll to be automatically fed to printing position upon the platen, cut into sheets after the printing thereof, and the severed sheets stacked in a pile, so that the operation of the press is made automatic, and hand-feeding dispensed with.

In the accompanying drawings Figure 1 is a side view of a press equipped with mechanism embodying my invention, Fig. 2 is a detail side view of the mechanism, Fig. 3 is a plan view thereof, Fig. 4 is a View similar to. Fig. 2 but showing the parts at different positions, Fig. 5 is a detail longitudinal vertical section through the feed and cut-off mechanism on the plane of the line ma2 of Fig. 3, and Fig. 6 is a detail horizontal section of the feed-roll driving device.

In carrying out my invention I employ an ordinary oscillating bed-and-platen printing press of the Gordon type, such as is commonly used for job printing. Such a press is prepared for the attachment of my roll-feeding mechanism by removing the feed-table employed when the press is used for printing hand-fed sheets, disconnecting the actuating devices for the rocker which carries the platen, and disconnecting the devices for releasing-the rocker-lock which holds the rocker at the impression position.

As the means for actuating the rocker and releasing the rocker-lock are cams which engage rollers connected with the respective parts, the mere removal of the cam-rollers serves to effect the desired disconnection of the said parts from the actuating mechanism. The rocker and platen are placed and locked at the compression position, as shown in Fig. 1. v y

In the press shown in Fig. 1, the principal parts, and those common to all presses of this class, are as follows: The side-frames 1, the bed 2 which is pivoted to the lower rearward portions of the side-frames, the rollerframes 3, ink-rollers 4, inkdisk 5, side-arms 6 for actuating the bed, the main or driving shaft 7, the front-shaft 8, the large gear and cam wheel 9 which is secured on one end of the front shaft and is driven by a pinion 10 carried on the main shaft 7, the small cam-wheel 11 carried on the end of the front-shaft opposite the wheel 9, the rocker-shaft 12, the rocker 13, the platen 14, and the roller-arms 15.

It will be understood that all of the parts mentioned are of ordinary construction and operation, the roller-arms 15 connecting the roller-frames with the side-frames, and the side-arms 6 connecting the bed with the wheels .9 and 11, said wheels having crankpins on the outer sides thereof for this purpose. The cams, before mentioned, which ordinarily actuate the rocker and release the rocker-lock, are on the inner sides of the wheels 9 and 11 and are not shown in the drawing.

On the upper edges of the side-frames 1 are secured the side- pieces 16 and 17 of the paper-feeding and cut-off mechanism, which has the same position on the pressframe as the table which is used for ordinary hand-feeding of the press. A roller 18 is journaled in the side- pieces 16 and 17 and above said roller is a skeleton roller comprising a shaft 19 and disks 20 secured at intervals thereon. The ends of the shaft 19 extend into vertical slots in the sidepieces, and half-boxes 21 are arranged in the slots above the shaft, adjusting-screws 22 being provided by which the shaft may be pressed down to force the disks 20 toward the feed-roller 18. On the end of the feed-roller shaft outside the side-piece 16 is secured a ratchet-wheel 23. Between the ratchet-wheel and the side-piece an arm 24 and a pinion 25 are revolubly mounted on the shaft, the arm and pinion being secured together, and the arm carrying a pawl 26 for engaging the ratchet-wheel. A rack 27 is slidably held in a suitable longitudinal guideway in the side-piece 16 and meshes with the pinion 25. The rack is given a longitudinal reciprocating movement, so as to revolve the pinion and pawlarm alternate directions, the movements a communicated to the ratchet-wheel and feed-roller, so that. the latter is rotated intermittently in amounts proportionate to the length of the stroke of the rack 27.

Adjustable actuating means for the rack are provided, so that the movements of the feedroller may be proportioned to the width of the sheets to be printed and cut off from the strip of paper fed to the press. In the structure shown, therack-actuating means include an arm or lever 28 of which the' lowerend is;pivoted onthe main-shaft 7 and the upper end is connected by a rod 29 with the front end of the rack. The lever 28 extends ,up outsidethe sidearm .Gwhich is connected with the crank-pin 30 on the large gearwheel 9. The centraLportion of the lever is. slotted longitudinally, and astud 31 passesthrough the slot and is provided with a collarand a nut 32which may be tightened down to hold the stud at adjusted positions with respect to j the lever. On the outer end ofthe crank-pin 30 is'secured a bar 33 which extends from the pin toward the axis ofthe shaft 8, but not radialthercto. Onthe outer side of the bar are two lugs in which is revolubly mounted a rod 34 .of which the central portion is threaded and passes through a stud 35. The inner end. of thestud extends into a slot in the bar, behindand parallel to the rod 341. By turning therod 3athe position of the stud may be varied longitudinally of the bar. The inclination of: the barto a line radial to the axis of the shaft 8 is such that as the position of the stud is varied longitudinally of the bar it will beat agreater or less distancefrom the axis of the shaft but will alwaysbe slightly in advance of the crankpin' 30,]with reference to the direction of rotation ofv the shaft and the wheel 9 as indicated in Figs. 2 ands. A bar 36 has its endspivotally connectedwith the studs 31 and 35, forming a connecting-rod by which the rotation of the wheel 9 .will cause an oscillating movement of the lever 28 between two extreme positions such as those shown in Figs, 2. and 4:. It will be obvious that the desired variation of the stroke ,of the rack 27 may be effected by varying the relations of, the stud to the bar 33 and of thestud 31 to the lever 28.

idrical and has an inlaid .strip 39 of hard material at oneedge,adapted to cooperate withthe ledger-bar to cutoff ,sheets from the str p. of paper ,passing over the same.

The cutter-bar carriesat one-send, ,outside the side-piece 17, an arm 10 from which a connecting-rod 41 extends to and is pivotally connected with the upper arm 42 of a threearmed leverwhichis pivoted on the protruding end of the feed-roller shaft. The two lower arms 13 and 4A of the said lever carry rollers 45 and 46, respectively, disposed adjacent to the periphery of the wheel 11.. Onsaid wheel is secured a cam-lug 47 adapted to engage the rollers 45 and 416 successively during the rotation of the wheel in the direction indicated. As the cam-lug engages the roller 45 the three-armed lever is tiltedso that the arm &0 is moved forwardly and causes thecutter-bar to be rotated sov that its cutting edge moves downward adjacent tothe -ledger-bar. The cam-lug then engages the roller9i6 and tilts the lever backwardly to restore the cutter-bar to its normal position.

The sheets B as severed by the cutter-bar fall in a pile .ona receiving -table a s which is.re1novably supported in a-slightly inclined position, as shown,-by means of rods 4:9 which extendu-p from the table and hook over-a: transverse rod 50. The rods as) serve as stops for the front edges of the sheets B.

To the lower andrearward parts of the pressside-frames 1 are connected the ends of bars 51 .which extend rearwardly between thefoot-portions ofrthe bed 2 and have leg-portionswhichrest upon the floor or press foundation. Near the rearward ends of the bars 51 are bearings for a shaft 52 adapted; torevolublysupport a roll paper a. On the intermediate portions. the bars 51 are vertically extending pins 53 with which the ends of atransverse bar 54 are slidably connected. The strip. of paper A,fro1n the roll a is passedfor-wardly beneath the bar 54, thence diagonally upward between the.footportions of the bed 2, and

The paper strip is thence carried upwardly 1 1 over the face ofthe platen 14- and-over a roller 57 which is ournaled in the rearward portions of the side- pieces 16 and 17 From the roller 57 the. strip is passed around the take-up rollers :58 and .59, and thence between the feed-roller 18 and disks 20. The take-up rollers 58 and 59 are revolubly mounted on arms 60secured on av transverse shaft 61 of which the ends are journaled in theside-pieces16 and 17. A notched wheel '62, is secured on theshaft 61, and two pawls v63 are mounted ontheside-piece 17 so as to beengageablewithsaid wheel to hold. thesame and the shaft in various adjusted positionswith respect-,to. the-frame. By so adjusting the shaft the ,positions of the rollers 58 and 159 may be varied so that various lengthsaof the paperstrip will be required to extend from theplaten to the cut-elf device, and, the printed port ions, of

the strip A thus brought into the proper relation to the cut-off, regardless of the width of the sheets cut from the strip.

In the operation of the press the typeform is secured upon the bed and inked in the usual manner, and all of the mechanism in connection with the bed operates in the usual way. The platen remains stationary at the impression position, as before described. During each movement of the bed toward the impression position the paper strip A is moved forward by the action of the feeding mechanism, the forward movement ceasing just before the bed reaches the impression position, so that the impression is made while the paper is drawn tight over the platen. The described sequence in the termination of the feeding movement and the making of the impression is attained by the relations established between the crankpin 30 and stud 35, before described, whereby the position of the stud which actuates the feed mechanism is always slightly in advance of the crank-pin which actuates the bed. During the time that the paper strip is stationary, the portion thereof extending beyond the ledger-bar is severed by the cutter-bar and falls onto the receivingtable 48. At the beginning of the feeding movement the transverse bar 54 slides upwardly on the pins 53 and thus reduces the stress on the paper strip while the movement of the roll a is beingstarted. At the conclusion of the feeding movement the slack in the strip A, due to movement of the roll resulting from its inertia, is taken up by downward movement of the bar 54. The bar thus forms an automatic slack takeup for the paper strip.

Now, having described my invention, what I claim and desire to secure by Letters Patent is:

1. In a press of the class described, a

strippaper feeding device comprising rollers, a reciprocating rack, a ratchet device connecting the rack and one of the feedrollers, a lever connected with the rack, a rotary actuating member, a bar secured thereto, a stud connected with the bar and adjustable longitudinally thereof toward and away from the axis of the rotary member, a stud connected with the lever and adjustable longitudinally thereof, and a member connecting the studs on the bar and lever.

2. In a press of the class described, a

. strippaper feeding device, a rotary actuating member, a stud carried by said member and adjustable toward and from the axis thereof, a lever connected to said feeding device, a stud mounted on said lever and adjustable longitudinally thereof, and a connecting rod connecting said studs together.

3. In a press of the class described, a platen, a bed movable from and toward the platen, a rotary member for actuating said bed, paper feeding mechanism, a movable cutter, an oscillatory member for actuating said cutter, and a part carried by said rotary member for engaging with said oscillatory member at two predetermined separated points in each revolution of said rotary member for moving said oscillatory member alternately in opposite directions.

4. In a press of the class described, a paper feeding device, a rotary actuating member, a lever connected to said device for actuating the same, a connecting rod be-- tween said lever and said rotary member, means for adjusting the point of connection between the connecting rod and the lever toward and away from the pivotal axis of the lever, and means for adjusting the point of connection between said connecting rod and said rotary member from and toward the axis of said member.

5. In a press of the class described, a platen, a bed movable from and toward the platen, a rotary member for actuating said bed, paper feeding mechanism, a movable cutter, an oscillatory member for actuating said cutter having two arms projecting toward said rotary member, and a part carried by said rotary member for engaging successively with said arms in order to swing said member alternately in opposite directions.

6. In a press of the class described, a platen, a bed movable from and toward the platen, a rotary member for actuating said bed, paper feeding mechanism, a movable cutter, a cutter actuating member in the form of a pallet of an escapement device and a part carried on said rotary member for engaging with said cutter actuating member to oscillate the same.

In testimony whereof I have hereunto subscribed my name in the presence of two witnesses.

JOHN L. GIDEON.

Witnesses:

VERN L. RIPLY, G. L. SILVER.

Copies of this patent may be obtained for fivecents each, by addressing the Commissioner of Patents, Washington, D. 0.

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