US2631036A - Guide finger for kluge printing presses - Google Patents

Description

March 10, 1953 A. R. BoYb 2,631,036

GUIDE FINGER FOR KLUGE PRINTING PRESSES Filed April 20, 1950 26 15' 27 as 31 2s INVENTOR, ABE R. Born, BY

1 fl -r'roR-EY.

Patented Mar. 10, 1953 UNITED STATESPATENT OFFICE GUIDE FINGER FOR KLUGE PRINTING PRESSES Abe R. Boyd, Indianapolis, Ind.

Application April 20, 1950, Serial No. 157,157

3 Claims. 1

This invention relates to an adjustable guide finger particularly adapted for use on Kluge printing presses, and consists essentially of a housing having a substantially vertically guided foot carried by a housing mounted on the paper feeder bar and so designed as to permit the foot to come into close proximity with the side registering spring clip carried on the bed of the press.

In this particular type of printing press, the paper stock is fed one sheet at a time by means of a number of vacuum cups coming over and picking the sheet ofi of the pile of blank paper and then depositing the paper on the inclined bed of the press. The adjustable finger constituting my invention is carried by the structure which moves the vacuum cups from the stock pile to the press bed. The foot of the finger is permitted, in View of my invention, to be positioned in close proximity to the side registering clip or tongue so that all of the sheets will come down into registry without lateral displacement when released from the vacuum feeding cups.

Therefore the primary purposes of the invention are found in the ability to secure closer registration by reason of the use of the device, the quick manipulation of the device for proper adjustment so as to prevent striking the bed of the plate itself, and also to prevent kicking of the paper out of registry, and also in the extreme simplicity of the device permitting the supplying to the trade at a relatively low cost. Furthermore the device eliminates possibility of damage both to the paper stock and to the press itself by being yieldable.

These and many other objects and advantages of the invention will become apparent to those versed in the art in the following description of one particular form of the device as illustrated in the accompanying drawing, in which,

Fig. 1 is a view in fragmentary top plan view and partial section of the suction cup support bar and a device mounted thereon embodying the invention;

Fig. 2 is a view in front elevation; and

Fig. 3 is a view in vertical section on the line 33 in Fig. 2.

Referring to the drawing, in which like characters of reference indicate like parts, the press in question to which the invention is to be applied has an inclined bed Ill, to one side of which is mounted a side register strip I I carried by a bracket 12 which in turn carries a tongue II) on the end of a shank 14 to be adjustable laterally of the bracket l2. This much is standard equipment on the press.

A transverse bar It carried by the support member it has mounted thereon in transversely spaced relation a plurality of vacuum cups l1, herein shown as four in number. These vacuum cups IT are interconnected with a vacuum producing device not shown through the fixed tubes I 8 and the rubber tubes I9. The bar it operates on the Kluge press in an arcuate direction of travel to lift from the bed Hi from the position indicated in Fig. 3 to travel upwardly and rearward'ly and come down on top off the stack of loose sheets (not shown) and then return with a single sheet to deposit the sheet on the bed It with the nozzles in some such relation thereto as shown in Fig. 3 when the vacuum is destroyed in order to let the paper sheet drop. However the paper extends to one side, the right-hand side as viewed in the drawing, to have an edge thereof come under the upturned end of the register tongue it.

In the absence of some device to guide the paper, the sheet will not properly register in relation to this tongue I3 and the member H. To provide for this operation, I provide a structure having a generally tubular housing 20 with a rearwardly turned mounting head 2| through which extends laterally a rectilinear opening 22 to fit rather snugly over the forward side and the top and bottom faces of the bar l5. A spring plate 23 is secured to the body head 2| across the back face of the bar l5, in order to provide a frictional engagement between the head 2i and the bar i5 sothat the member will be frictionally engaged in any selected position longitudinally of the bar I5 at least between the outer tube l8 and the end of the bar I5, Fig. 2.

The tubular member 20 has a bore 25 extending therethrough having a major diameter and then a smaller bore 25 continuing therefrom and out through the upper end. The juncture of the bores 25 and 26 forms an annular shoulder 22?. A vertically disposed shank 28 slidably fits within the bore 25, and has a stem 29 fixed to its upper end and extending on out slidably through the bore 25 to extend above the member 29. This stem 29 has its upper end portion 3%} screwthreaded to receive thereon the knurled nut it by means of which the stem may be lifted or lowered relative to the head 21. A spring 32 surrounds the stem 29 to bear coinpressively against the shoulder 2'! and the top end of the shank 23 tending to urge the shank 28 downwardly, but only as far as may be permitted by the adjustment of the nut 3| along the stem portion 30. In order to prevent rotation of the shank 28 within the bore 25, the shank is provided with 3 a notch 33 through which extends a pin 36 carried by the member 20. This notch 33 has sufficient longitudinal length as will permit the desired extension and retraction of the shank 28 from the lower end of the member 20.

On the lower end of the shank 28 there is provided a foot 35 inclined downwardly in substantial parallelism with the top face of the bed is. The under side of the foot 35 has aflat surface 36 which will come into contact with the sheet of paper being carried by the vacuum cup ll.

Some paper stock will be heavier than others, such as the difference between light tissue paper and heavier stock bordering upon cardboard, and accordingly such differences in paper will cause diiferences in the dropping and registerin action of the individual paper sheets. Therefore the foot 35 needs to be made adjustable in relation to its final height from the top face of the bed id when the paper is released from the vacuum cup ll, so that the paper will not be disturbed from its registry under the tong e 43. Should it accidently occur that the foot 35 be lowered too much, then when it strikes the bed i} it may yielding retract upwardly by reason of the shank 28 sliding within the bottom of the member 2&3 against the pressure of the spring 32. The permissible vertical adjustment of the foot 35 through the turning of the nut St the desired positioning of the foot 35 very uicl' with the minimum amount of movement of pr: so that the adjustment may be made in accordance with the paper being employs ves of the attachment itself.

It is further to be noted that the of the foot 35 has a rounded surface 3 prevents kick-back of the paper in every ope. tion. The desired adjustment of the foot is to have its lowermost point below the uppermost rear end of the tongue 13 as indicated in the relationships thereof in Fig. 3.

While I have herein shown and described my invention in the one particular form, it is obvious that structural changes may be employed ithout departing from the spirit of the invention, I therefore do not desire to be limited to that precise form beyond the limitations which may be imposed by the following claims.

I claim:

1. In a printing press having a bed, a side registry upturned tongue, and a shiftable bar extending transversely of the bed to carry paper feeding mechanism in an arcuate manner of travel, an adjustable guide finger comprising a body friction-ally engaging said bar to be shiitable therealong; an approximately vertically extending tubular member carried by the body; a shank slidingly entering the lower portion of said member; a stem extending from fixed connection with said shank upwardly through and above the member; a nut on the stem externally of the member, screw-threadedly engaging the stem; a spring surrounding the stem within the member urging said shank downwardly and maintaining said. nut seated against the upper end oi said member; and a foot on the lower end of said shank having a fixed toe end directed in the direction of the paper feed over the bed; whereby said foot may be adjusted transversely of said bed and also vertically in reference to said tongue to have the foot come to a final lowest position of travel of said bar with the foot spaced above the bed but below said tongue upturned portion.

2. In a printing press having a bed, a side registry upturned tongue, and a shiftable bar extending transversely of the bed to carry paper feeding mechanism in an arcuate manner of travel, an adjustable guide finger comprising a body frictionally engaging said bar to be shiftable therealong; an approximately vertically extending tubular member carried by the body; a shank slidingly entering the lower portion of said member; a stem extending from fixed connection with said shank upwardly through and above the member; a nut on the stem externally of the member, screw-threadedly engaging the stem; a spring surrounding the stem within the member urging said shank downwardly and maintaining said nut seated against the upper end of said member; and a foot on the lower end of said shank having a fixed toe end directed in the direction of the paper feed over the bed; whereby said foot may be adjusted transversely of said bed and also vertically in reference to said tongue to have the foot come to a final lowest position of travel of said bar with the foot spaced above the bed but below said tongue upturned portion; said foot having a flat under surface and a rearwardly and upwardly rounded heel. the toe end of the foot being closer to the bed than its heel at the end of its lowermost travel.

3. An adjustable guide finger to be mounted on a shiftable printing press paper feed bar, com prising a tubular member; means for mounting the member on said bar; a shank longitudinally slidably entering said member to extend by a lower end therefrom; stop means limiting downward travel of the shank and also holding said shank against rotation within said member;

- spring means urging said shank to its downward limit of travel; means for retaining the shank at selected elevations above said limit; a ri id foot on the lower end of said shank; and said foot comprising a rear heel and a forwardly and down wardly extending toe, said foot having a fiat undersurface inclining upwaruly and rearwardly from the forward end of said toe, said foot further being characterized by having said heel rounded from said undersurface around and upwardly to said shank.

ABE R. BOYD.

REFERENCES ('JITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,011,009 Bakke Dec. 5, 1911 2,088,377 Kluge et a1. July 27, 193'. 2,400,927 Harrold May 28, 1946 2,442,839 Carlson June 8, 1948

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