US1169767A - Paper-feeding attachment for printing-presses. - Google Patents

Description

DE BOISE BRESNAN.

PAPER FEEDING ATTACHMENT FOR PRINTING PRESSES..

APPLICATION FILED OCT. 8,1912.

Patented Feb. 1, 1916.

3 SHEETS-SHEET I.

ATTORNEY THB COLUMBIA PLANDORAPH 320;, WASHINGTON, D. C.

DE BOISE BRESNAN- V PAPER FEEDING ATTACHMENT FOR PRINTING PRESSES.

APPLICATION FILED OCT. 8, 1912.

1,169,767. Patented Feb. 1, 1916.

3 SHEETS-SHEET 2.

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ATTORNEY DE BOISE BRESNAN PAPER FEEDING ATTACHMENT FOR PRINTING PRESSES.

APPLICATION FILED OCT. 8. 912.' 1,163? Patented Feb. 1, 1916.

3 SHEETS-SHEET 3.

f TWA 71 I12 [/8 INVENTOR A ATTORNEY THE COLUMBIA PLANOGRAPH co. WASHINGTON. D. c.

DE BOISE BRESNAN, OF EAST ORANGE, NEW JERSEY.

PAPER-FEEDING ATTACHMENT FOR PRINTING-PRESSES.

Specification of Letters Patent.

Application filed. October 8, 1912. Serial No. 724,535.

To all whom it may concern:

Be it known that 1; Dn Boisn BRESNAN, a citizen of the United States of America, and aresident of East Orange, county of Essex, and State of New Jersey, have invented certain new and useful Improvements in Paper-Feeding Attachments for Printing- Presses, of which the following is a specification, reference being had to the accompanying drawings, forming a part thereof.

This invention relates to an improvement in paper feeding attachments for printing presses.

The object of the invention is toprovide a simple and effective paper feeding and cutting attachment which is adapted to be aflixed to printing presses and arranged to feed the paper to the press from a roll and automatically cut it into sheets of the desired length, so that ordinary presses may be made to perform the work for which expensive and complicated automatic presses are now required.

I will describe my invention in the following specification and point out the novel features thereof in the appended claims.

In the drawings: Figure l is a side elevation of the attachment as applied to a press of the Gordon type. Fig. 2 is a sectional elevation on the line 2-2 of Fig. 1 on a slightly enlarged scale. Fig. 3 is a. plan view showing the attachment and the gear ing. Fig. 4 is a side elevation of the attachment. Fig. 5 is a. sectional elevation showing the cutting and feeding mechanism. Fig. is a fragmentary sectional elevation of the paper clamping mechanism.

For convenience of description a well known form of printing press is shown comprising a frame 10 upon which a platen 12 is mounted to oscillate in a well known manner to cooperate with the type bed 1% which is oscillated about a center 16-.

The paper feeding and cutting attachment is adapted to be a'ppli'e'dto" any ordinary printing press. The paper web 20 is fed from a supply roll 22 mounted in brackets 23 which may be aflixed to the frame 10 of the press. The web then passes over a fixed guide roller 24 mounted in upwardly extending projections 25 of the brackets 23 then under afloating roller 26 around fixed guide rollers 27 and 28 and up in front of the platen 1 2 in a position to re ceive an impression from the type on the bed. 124;. The. paper. then.- passes around rollers 29-30 then. between feed rolls 3l32, and between knives 33- 34 by which the printed web is cut into sheets which fall upon an inclined apron 35. i i

'A- brake is applied to the supply roll 22 Patented Feb. 1, 1916..

comprising ashoe 36 of'suitable material '1 T mounted on a lever 37 and held in frictional contact with the periphery of the roll. The lever 37 is fulcrumed at 38 and extends under the floating roller 26, the weight of which is sufficient to press the shoe 36 into contact with the supply roll. The floating roller 26 is supported in vertical guide slots 40 between the projections 25 and is consequently restricted to a substantially'vertical movement. The paper is fed-forward positively by the feed rolls 31 and 32. .ihese feed rolls comprise two narrow rolls 31 mounted on a shaft 50, and a long roll 32 which cooperates with the rolls 31 and is mounted on a shaft The shaft 50 is journa-led in suitable bearings .55 on the side frames 49'. and is r'ovided on one end with a gear 51,-and on the other end with a hand wheel 53. By means of the hand wheel 53 the feed rolls may be rotated by e hand to adjust the web of paper. A gear 5% is mounted on the shaft 52 and meshes with the gear 51, said shaft 52 being oin nalcd in suitable bearings in the side frames 49 and driving the shaft 50 th ough the gears 54 and 51. The bearings 55 are sup po ted upon springs 56 wh ch hold the feed rolls 31in yielding engagement with adjustable screw stops 57; The arrangement of parts is such tliatit is only necessary to loosen the screws to separate the rolls and enable the paper to be inserted between them.

The feed rolls are rota ted intermittently in one direction, to fe'ed'the paperforward. by means of a rack 60 which is slidablv mounted on the under side f a bar 1 and meshes with a pair of gears 63 on shaft-s 6-1 mounted in a bracket 73. The rack 60' is supported at each end by an inverted U-shaped strap 66 which carries a bearing block 69, the latter sliding on the upper face of the bar 61. The bar 61 is pivotally connected at one end to a clamp or bracket 70 on a connecting rod 72. the latter being connected at one end to a crank disk 74 and at its other end to an eccentric shaft projection 76 of a roller which is mounted to rollwithin a sleeve 77'. The arrangement of parts. is such that the type intermittently .naovecltiatorjand out of engagement with the paper, the

' laten and the ink rollers bein actuated in the usual manner. The other end of the bar 61 is guided in an inverted U-shaped bracket or casting 73 mounted on the stud shafts 64;

and straddling the gears 63. A shim 77 is interposed between the upper edge of bar 61 and the casing 73 and is backed by one or more set screws 78. An adjustable stop 68 i is mounted on the bar 61 and is adaptedto engage one end of the rack to cause the latter to move forward and thereby rotate the pinions 63 clockwise. .The gears 63 mesh With a pinion 71 on a shaft 52, the latter being connected by a ratchet clutch 67 to the shaft 52, whereby when the rack 66 is moved forward, or toward the right as viewed in Fig. 1, the shaft 52 is unaffected,

extent of movement of the rack 60can be regulated and consequently the extent of rotation of the feed rolls 31. 32 and the length of the paper sheets. With the construction a o e set for h it will be noted that the rack 60 is idle until either of the stops 68, 76 engages 'the corresponding end of the rack.

In order to adjust the position of the paper with respect to the impression which is to be taken thereon, the roller 29 is mounted upon a pair of arms 80 which are aflixed to a shaft 81 pivotally supported by the side frames 19. A worm wheel 82 is secured to the shaft 81 and meshes with a worm gear 83 which forms a part of an adjusting screw having a knurled head 8% by which it may be turned in suitable bearings 85. The arms'8O and the roller 29 are obviously raised or lowered when the adjusting screw is turned.

The sheets are severed from the web by cutters 33 and 34-, the former being mounted in an oscillatorv cutter head 90, and the latter being stationary and secured to the vertical face of a web 48 connecting the side frames 49. The cutter 33 is mounted on a shaft91aflixed to the cutter head,

7 -which is connected to a b ell'crank lever 93 by a link 94:. The cutter is held in the position shown in the drawings,except when it is actuated as hereinafter explained,by a spring 95 which is interposed between an adjusting screw 96 and a link 97 pivotally connected to the connecting pin between the bell crank lever 93 and the link 91. By turningthe screw 96 the tension of the V sirin 95 may be ad'usted. b

The cutter head is oscillated by means of the bell crank lever 93 which'is actuated by a tappet 98. The tappet 98 is pivotally mounted on the front end of the bar 61, and is adapted to engage a plate 99 aflixed to the upper end of the vertical arm of the bell crank lever 93 upon the forward stroke of said bar, said tappet being arranged to swing upward and pass over the plate 99 upon the return stroke without actuating the cutter hen the paper is to be cut it is desirable to clamp it to hold it against movement during the cutting operation. Accordingly, a bar 110 is provided which is adapted to cooperate with the horizontal surface of the web 48 to clamp the paper against the latter. The bar 110 is provided with two up wardly extending rods 112 which are slidably mounted in a pair of guide bars 114 and surrounded by springs 113. Theseguide bars are spaced apart by blocks 115 and 116 and are yieldingly supported by coiled springs 118 which surround rods 120 projecting upward from the web 48 and slidable through the bars 114: and blocks 116. The rods 112 are provided with pins 122 which project into slots 123 formed in the blocks 115 and the engagement of said pins with the lower ends of said slots limits the downward movement of the bar 110 under the action of the springs 113. A bar 130 is mounted on the upper edges of the arm of the cutter head 90 and is provided with a pair of downwardly projecting screws 131 provided with lock nuts 132, said screws being arranged to engage the upper side of the upper guide bar 1111- when the cutter head is swung down by the lever 93 and link 94- thereby pushing down the bar 110 to clamp the paper against the web 48.

Occasionally the web of paper is wider than the desired width of the printed sheet. I therefore provide means which may be used to trim off one or both edges of the web of paper. These means comprise cutter disks 140 which are frictionally held upon a shaft 141 and may be moved longitudinally thereof to vary the width of paper to be cut. A second set of cutter disks 1&2 are provided to cooperate with the disks 140, and are mounted on swinging arms l i- 1 which are adjustable along the shaft 81 extending between the side members of the frame l9.

The arms 1 1% are enlarged at l i-8 to provide covers for the upper cutters 142 which are pressed down by springs 14:6 to provide the desired pressure between the cutters. The force exerted by each of the springs 116 may be adjusted by a cap and bolt 149 against which the spring reacts. The shaft 141 is provided with a gear 150 which meshes with an intermediate gear 152 the latter meshing with the gear 51.

lVhile only two sets of disk cutters are illustrated, one near each edge of the paper, one or more intermediate sets may be employed if it is desired to cut the web into two or more narrow strips; The cross cutters 33 and 3-l will then cooperate with the disk cutters in producing sheets of desired sizes.

Theparts described herein do not form an intrinsic part of the printing press, but are so arranged that they may be easily attached to presses already installed in printing offices and may be transferred from one press to another if so desired.

A press equipped with this novel attachment is capable of doing the same work-as that done by the more expensive self-feeding presses which have heretofore been used. To this end a shelf 15% having hooked lugs 155 may be secured to the base or frame 10, said lugs cooperating with flanges 156 of the side frames 49 to removably hold the latter in position on the base. The side frames may be locked to prevent slipping by a clamp 157. The rod 61 and the bracket are readily detached from the connecting rod 72 and the strap 73 together with the gear 63 are removable from the shaft 64, whereupon the rod 61 and rack may be detached from the machine. This may be accomplished by raising a slidable bar 158, the lower end of which is forked to fit into a groove in shaft 52.

What I claim is:

1. A paper feeding and cutting frame for printing presses, comprising releasable means for securing the attachment to a press, a frame adapted to be mounted on and supported by a press, means for feeding a web of paper past the platen of a press, a series of guiding rollers over which the web of paper is adapted to pass, one of said rollers being pivotally supported, and means for varying the position of this roller to adjust the paper with respect to the impression which is to be taken thereon, and means for cutting the Web of paper into sheets.

2. A paper feeding and cutting frame for printing presses, comprising releasable means for securing the attachment to a press, a frame adapted to be mounted on and supported by a press, a pair of feed rolls, a reciprocatory rack arranged to rotate said feed rolls intermittently in one directicn, a stationary cutting blade, an oscillatory cutter head having a cutting blade arranged to cooperate with said stationary cutting blade, a lever connected to said cutter head, and means operatively related to said rack for moving said lever to cause the cutting blades to sever the Web of paper into sheets.

3, A. paper feeding and cutting attachment for printing presses, comprising releasable means for securing the attachment to a press, a frame adapted to be mounted on and supported by a press, means for feeding a web of paper past the platen of a press, means for cutting the web on one or both edges. and means operatively connected to the feeding means for cutting the web into sheets.

4. A paper feeding attachment for printing presses, comprising a pair of feed rolls, an oscillatory and reciprccatory bar, a rack slidably mounted in said her and arranged to rotate said feed rolls, a fixed stop on said bar for engagement with one end of said rack, an adjustable stop on said bar for engagement with the other end of said rack, a movable cutter, and means on said bar arranged to control the operation of said cutter.

5. A paper feeding and cutting attachment for printing presses, comprising a pair of feed rolls, an oscillatory and reciprocatory bar, a rack slidably mounted in said bar and arranged to rotate said feed rolls periodically in one direction, an oscillatory cutter head provided with a cutting blade, a lever, a link connecting said lever and cutt r head, and a depending arm on said bar arranged to engage said lever to move said cutter head.

6. A paper feeding and cutting attachment for oscillating platen printing presses, comprising a pair of feed rolls, reciprocating means actuated by the oscillating platen for rotating said feed rolls periodically in one direction, operatively related to the reciprocating means for severing the web into sheets. and a clamping device comprising a clamping bar and a yieldingly supported guide frame therefor, arranged to clamp the web during the cutting operatirn.

7. A paper feeding and cutting attachment for printing presses having a clamping plate, comprising a pair of feed rolls, means for rotating said feed rolls periodically in one direction, means operatively related to the feeding mechanism for severing the web into sheets, and a clamping device comprising a clamping bar adapted to cooperate with the surface of said plate to clamp the web during the cutting operation, a pair of guide bars yieldingly supported above the clamping plate, springs interposed between the clamping bar and the guide bars and means dependent upon the cutting mechanism for actuating the guide bars.

8. A paper feeding and cutting attach-- ment fort printing presses, comprising a pair of feed rolls, a reciprocatory bar, a rack slidably mounted in said bar and arranged to rotate said feed rolls periodically in one direction, means for limiting the sliding movement of the rack in said bar, an oscillatory cutter head provided with a cutting blade, a lever, a link connecting said lever and cutter head, and a depending arm on said bar arranged to engage said lever to move said cutter head.v

21- s s mas-es;

T to rotate said feed rolls periodically in one directicn, adjustable means for limiting the sliding movement of the rack in said bar, an oscillatory cutter head. provided with a cutting blades link connecting said lever and cutter head, and a depending arm on 10 said her arranged to engage said lever to niove said cutter head.

In testimony whereof, I have hereunto set iiiy hzind this 7th day of October, 1912. o DE BOISE BRESNAN. Witnesses FLORA B. GRAvEs, ERNEST W. MARSHALL.

-C opie'sof this patent may be obtained for five cents each, by addressing the Commissioner of Patents. 7 Washington; D; G.

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