US733325A - Printing-press. - Google Patents

Description

No. 733,325. PATENTED JULY 7, 1903.

' J. KREHBIEL.

PRINTING PRESS.

APPLICATION FILED AUG. 26. 1899. RENEWED NOV 10. 1902- N0 MODEL 7 2 SHEETS-SHEET 1.

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mm a ywa-w No. 733,325. PATENTED JULY 7, 1903.

J. KREHBIEL. PRINTING PRESS.

APPLICATION FILED AUG. 26. 1399. RENEWED NOV. 10, 1902.

N0 MODEL. 2 SHEETS-SHEET 2.

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UNITED srrrrnis rtentea July 7, 1903'.

PATENT OFFICE.

PRINTING-Passe;

SPECIFICATION forming part of Letters Patent No. 733,325, dated July '7, 1903. Application filed August 26,1899. Renewed November 10, 1902, Serial No. l30,8l5. (No model.)

To (tZZ whom it may concern.-

Be it known that 1, JOHN KREHBIEL, a citizen of the United States of America, residing at Harrishill, in the county of Erie and State of New York, have invented certain new and useful Improvements in Printing-Presses, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to that class of platen printing-presses where the paper is taken from a continuous web or roll and in which a reciprocating type-bed is employed.

The invention has for its principal object to produce a press for general job-work whereby a strip of paper may be cut from a roll of greater width, according to the size job required, and to provide means whereby the paper is intermittently fed across the platen and spaced with great accuracy, whereby I am enabled to do card-printi ng and color-work requiring great accuracy.

The invention further consists in the construction and operation of the paper-feed roll, comprising clamping-fingers adapted to clamp the edges of the paper to the surface of the roll during a part of its revolution, and a locking device adjacent to said roll whereby the paper is fed a certain predetermined distance across the platen and locked in position while the impression is being made, thus insuring uniform spacing between the forms and a perfect register.

The invention further consists in the peculiar construction, arrangement, and combination of the various parts, all as more fully hereinafter described, and shown in the accompanying drawings, in which Figural is an elevation of the printingpress. Fig. 2 is an end elevation thereof. Fig. 3 is an enlarged vertical section on line it 00, Fig. 1. Fig. etis a vertical cross-section on line y y, Fig. 3, looking to the right. Fig. 5 is a plan view ofa portion of the press, showing the longitudinal paper-cutter. Fig. 6 is an end elevation of the paper-feed roll, showing the operating and locking mechanism therefor. Fig. '7 is a vertical section through one of the pivoted wear-blocks. Fig. Sis a horizontal section on line .2 z, Fig. 1, showing the adjustable connection.

A is the base of the press, and B represents the four corner-uprights stationarily secured therein.

' O is the drive-shaft, mounted in suitable hearings on the base and provided at its ends with the fly-Wheels D D and the belt-Wheel D E represents pinions mounted on the shaft 0 just inside the bearings, and F F are gears on the crank-shafts G G, meshing therewith.

H represents vertical side walls integrally formed with the base,extending up therefrom, having the end guides at integrally formed thereon, in which the hollow plunger I is adapted to travel, suitable brasses or rubirons a being interposed betweenthe plunger and corner-brackets.

I may and preferably'do dispense with the end guides at and guide the plunger I on the uprights B by means of the pivoted wearblocks 1), adjustably secured to lateral extensions 0, formed on the upper end of the plunger or type-bed, by means of the set-screw d, as shown in Fig. '7.

I I are pitman-rods mounted on the crankshafts G G, their upper ends working in suitable pockets formed in the plunger I.

J is a rotaryinking-disk of well-known construction carried by the plunger I, and K is the type-bed, mounted on the top of said plunger.

L represents bell-crank levers pivoted in the frame of the machine and having extensible spring-arms e secured to theupper ends thereof, to the ends ofwhich are attached the opposite ends of the inking-carriage M, and M is a shaft connecting the free ends of said levers, upon which is mountedone end of the connecting-link N, having its opposite end pivotally secured to the reciprocating plunger.

N is a platen stationarily mounted on the standards B near their upper ends, and N is a horizontal rod supported in guide-bearings formed on the side of the supportingframe of the platen. to one end of said rod and meshing with the pinion U, sleeved on the shaft of the paperfeed roll.

0 is a vertical rod pivotally secured in the base of the press and with its upper end engaging in the slotted bearingf, formed on the e is a rack-bar secured IOO ' bar 6.

rod N and f represents a series of adjusting-holes in the rod 0 O O are disks secured to one end of the crank-shafts G G, and O is a curved arm having one end pivotally connected to the 'disk 0 and the opposite end adjustably connected to the vertical rod 0 by means of the connection shown in Fig. 8, in which (1 is a sleeve adjustably secured on the screwthreaded end portion of the arm 0 by means of the nuts 00 m, and z is a pin on the sleeve projecting atright angles thereto and adapted to form a pivotal connection with the arm 0 by being inserted in one of the holes f in said rod, a suitable nut 2' being provided to hold the parts together.

In the operation of the parts a reciprocating motion will be imparted to the horizontal rod N carrying the rack-bar e, which through the medium of the pinion U operates the paper-feed roll, and as the amount of movement imparted to the rod 0 can be readily adjusted, by means of the adjustable sleeve, on the arm 0 the amount of paper fed across the platen can be regulated with reasonable accuracy. However, for color and other fine work requiring the min'utest regulation in the paper feed I provide a second regulatoror centering device, which I willdescribe in detailfarther on.

P is a vertical rod pivotally secured near its upper end to the bracket P on one of the uprights B and having a slot P near its lower end, in which the pin P on the disk 0 is adapted to'travel and impart an oscillating motion to the rod P, said rod carrying at its upper end the locking-dog P.

R is a paper-roll supported on the arms S, adjustably secured on the supporting-frame. I may and preferably do arrange the arms S so that they may be adjusted laterally as well as vertically, thereby permitting the use of any width or diameter of roll within the capacity of the machine.

5 is a spring-pressed rotary cutter adj ustably mounted on the transverse shaft g, secured to brackets on the supporting-frame, a suitable spring It being sleeved on said shaft and adapted to hold the cutter in contact with the roll to cut the paper.

U is the feed-roll, journaled on the shaft- V, supported in suitable bearings and carrying the pinion U, which meshes with the rack- U is a flanged disk secured to said pinion and having internal ratchet formed thereon, and U is a flanged disk stationarily mounted on the shaft V, having enlarged peripheral slots 6 cut in its periphery, (preferablycorrespondiugin number to the ratchetteeth on the disk U In these slots the adjusting and locking dog P on the rod P is adapted to engage to finally adjust and lock the parts while the impression is being made. It will thus be seen that the locking mechanism is operated directly from the crankshaft with the fewest possible intermediate parts, and as the rack-bar and gear can be adjusted to within one space on the disk the dog will do the final centering of the parts, thus insuring accurate spacing.

U is a dog pivotally secured on the disk U in operative relation with the ratchetteeth on the disk U so that the feed-roll will be rotated in but one direction'that is', while screw 71, and 0 is a cam formed on the hub of said disk, adapted to lift the clampingfingers out of engagement with the paper during onehalf of the revolution of the feedroll.

lV is a hollow disk or casing mounted on the sleeve V and hub 'm free to turn thereon and having a finger p engaging in the slot 1, whereby it is rotated with the feed-roll.

Y represents clamping-fingers carried by the roll and provided with the stem 4', having the inclined lower faces 5, adapted to travel on the cam-face 0 and be lifted out of contact with the paper thereby.

25 represents coil springs sleeved on the stems of the clamping-fingers between the shoulders formed on the disks, one end being secured to said stem, while the other end presses against the inner wall of the disk \V, thereby tending to hold the fingers against the feed-roll and at right angles to the edge of the paper.

4" represents lugs formed on the stems of the clamping-fingers Y.

n represents semicircular lugs or projections formed near the outer edge of the disk V against which the lugs r on the clamping-fingers are adapted to strike in the operation of the feed-roll, thereby causing the said fingers to be turned parallel with the edge of the paper and out of contact therewith against the tension of the spring 2? during one half-revolution of the feed-roll. Itwill thus be seen that as the clamping-fingers ride up the incline 0 they will be lifted out of cont-act with the paper, and at the same time the lugs 7" will strike the inclined face of the projection 12' and cause the fingers to be turned parallel with the edge of the paper for nearly one half-revolution of the feedroll, so that the paper is free to leave the feed-roll and pass to the folder or cutting device, as desired. As the fingers again leave the cam groove or projection n the spring 2, will cause them to spring back to their normal position, and upon riding down the inclined faceof the cam o the fingers will again clamp the paper and draw it across the platen the desired distance. It will thus be seen that with my construction of press I am enabled to use any width of paper that maybe obtainable on the market,which is of especial advantage to the job-printer who carries but alimited supply of paper on hand. Further, with the construction of the combined spacing device and feed-roll I am enabled to obtain an accurate feed and the closest register possible, which is of especial advantage in color-printing when two forms are used side by side on one type-bed, first printing one color and then feeding the paper transversely to the next form and printing the second color.

WVhat I claim as my invention is- 1. In an intermittent web-printing press, the combination with the reciprocating typebed, of a feed-roll operating in unison with the type-bed to draw the paper across the platen, two sets of clamping-fingers at oppo-- site ends of the roll, and means for imparting a combined radial and rotary movement to said fingers by the movement of the roll, to clamp the edges of the paper upon the roll during a portion of its revolution and to release the same.

2. In an intermittent web-printing press the combination with the reciprocating typebed of a feed-roll operating in unison with the typebed to draw the paper across the platen of two sets of clamping-fingers at opposite ends of the roll and adapted to clamp the edges of the paper upon the roll, said clamping-fingers having shanks radially supported in guide-bearings on the roll, retracting-springs upon the shanks and cams stationarily secured within the roll and imparting a radial and rotary movement to the clamping-fingers in the movement of the roll.

3. In an intermittent web-printing press the combination with the reciprocating typebed, of a feed-roll operating in unison with the type-bed to draw the paper across the platen, of two sets of radially-movable clamping-fingers at opposite ends of the roll, means for actuating said fingers by the movement of the roll to clamp the edges of the paper upon the roll during a portion of its revolution and to release the same by imparting a slight radial movement and turning them upon their axis out of contact with the paper.

4. The combination with a reciprocating type-bed of the hollow feed-roll U, the shaft V to which said roll is centrally connected, the clamping-fingers Y mounted in longitudinal slots Z in the ends of the roll, the heads WV longitudinally adjustably secured within the ends of the roll and having radial guides for the shanks of the clamping-fingers, .retracting-springs 23 upon the shanks and cams 0 and n stationarily secured within the open ends of the feed-roll and adapted to impart a radially-sliding and rotary movement to the clamping-fingers by the movement of the roll, the heads carrying the clamping-fingers and their actuating-cams being longitudinally adjustable within the roll.

5. In an intermittent web printing press, the combination with a reciprocating typebed of the feed-roll and its actuating mechanism for imparting a variable movement thereto in unison with the type-bed, a disk fast on the shaft of the feed-roll, provided with a series of radial slots enlarged at their outer ends formed in the periphery of said disk, a dog adapted to be thrown into and out of engagement with said slots and lock the roll in position and means independent of the operating mechanism for the feed-roll for positively operating said dog in timed relation therewith.

6. In an intermittent web-printing press, the combination with a reciprocating typebed, of the feed-roll operating in unison there with, a pinion mounted on the shaft of the feed-roll free to turn thereon and carrying a disk provided with ratchet-teeth, a rack-bar meshing with said pinion, means connected with the drive mechanism for imparting a variable movement to said rack-bar, a disk fast on the shaft of the feed-roll, ratchet-andpawl connections between said disks to turn the drum in but one direction, a series of radial slots enlarged at their outer ends formed in the periphery of said disk, a dog adapted to be thrown into and out of engagement with said slots and lock the roll in position and means independent of the operating mechanism for the feed-roll for positively operat ing said dog in timed relation therewith.

7. The combination with a reciprocating type-bed, of a feed-roll operating in unison therewith, the pinion U mounted on the shaft of the feed-roll free to turn thereon and carrying the disk U the disk U stationarily secured on the shaft V and a ratchet-andpawl connection between said disks, the rackbar e meshing with said pinion, the rod 0 connected to said rack-bar having its lower end pivotally secured in the base of the machine, the curved arm 0 pivotally secured to the disk 0, and having its opposite end adjustably connected to the rod 0 near its middle.

8. In an intermittent web-printing press the combination with a supporting base or frame of the stationary platen secured thereto, the vertical reciprocating plunger carrying the type-bed and traveling in guides formed on the base, the pitmen I pivoted in said plunger and actuated by the crankshafts,the drive-shaft 0 supported in bearings between said crank-shafts, the pinions E meshing with the gears F thereon, and a transverse inking-carriage operated by and in unison with the plunger andhaving extensible arms e.

9. In a printing-press the combination with a stationary platen, a vertical reciprocating type-bed actuating means therefor, of means operatingin conjunction with the drive mechanism to intermittently feed the paper across the platen, comprising a feed-rollhaving clamping-fingers operated by the movement of the roll and a spacing and locking dog operated directly by the drive mechanism and vin unison therewith, whereby said dog is adapted to take up the 10st motion or slack in the drive mechanism for the feed-roll.

10. In a printing-press, the combination with a stationary platen and a vertical reciprocating plunger carrying the type-bed and operating means therefor, vertical guides having corner-brackets in which the plunger travels, an inking-carriage moving in unison with and operated by the movement of the plunger, means for intermittently drawing a predetermined amount of paper across the platen, comprising a feed-roll having clamping-fingers in its opposite ends and a pinion U loosely sleeved on the shaft thereof and meshing with the rack-bar e, the arm 0 connected to said rack-bar and having its lower end pivotally secured to the base of the press, the disks 0 O mounted on the ends of the crankshafts and the curved arm 0 pivotally secured to one of said disks and adjustably connected to the arm 0 the lever P carrying the dog P at its upper end operated directly from the drive mechanism adapted to take up the lost motion in the drive mechanism of the feed-roll.

11. In a printing-press, the combination of a feed-roll recessed at both ends, heads axially adjustably secured within the open ends of said roll, said heads carrying clamping-fingersand forming the means for adjusting the same to different widths of papers, said fingers being adapted to clamp the edges of the paper upon the roll during a portion of its revolution and to release the same.

12. In a printing-press, the combination of an open-ended feed-roll, heads axially adjustably secured within said feed-roll and adapted to rotate therewith, clamping-fingers carried by said heads, means for actuating said fingers by the movement of the roll, to clamp the edges of the paper upon the roll during a portion of its revolution and to release the same.

In testimony whereof I atfix my signature in presence of two witnesses.

JOHN KREHBIEL. Witnesses:

OTTO F. BARTHEL, V. D. KINNER.

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