US248024A - Delivery apparatus - Google Patents

Description

N6 Model.)

' J. J. CLAUSE.

DELIVERY APPARATU$.

No. 248,024. Patented Oct. 11,1881

- UNITED STATES PATENT O FICE.

JOHN J. CLAUSE, OF CHICAGO, ILLINOIS.

DELIVERY APPARATUS.

SPECIFICATION forming part of Letters Patent No. 248,024, dated October 11, 1881.

Application filed July 2, 1881.

To all-whom it may concern:

Be it known that 1, JOHN J. CLAUSE, of Chicago, Cook county, State of Illinois, haveinvented certain new and useful Improvements in Sheet -Delivery Apparatus for Printing- Presses, of which the following is a specification.

My invention relates to improvements in the mechanism of that class of newspaper-folding machines wherein two contiguous sheets are collected together, one on top of the other, as they come from the press.

1n the accompanying drawings, which form a part of this specification, and in which similar letters of reference indicate like parts, Figure 1 is a diagram or cross-sectional view of a device embodying my invention, showing the parts in position to seize the sheet and carry it around the cylinder. Fig. 2 is a similar view, showing the parts in position to release and discharge the sheet from the cylinder. Fig. 3 is a side view. Fig. 4is a detail sectional view of the cams and their supports.

In said drawings, A represents a portion of the frame of the folding-machine; B, the griping-cylinder, provided with gripers b, of the usual form c c 0 theconveying-tapes, which lead the sheets of paper from the printingpress 5 c 0 the tape-pulleys, and c the guide or guard extending part way around the griping-cylinder. Said gripers are actuated at proper-intervals by ahalved cam, D D, which has contact with a roller, 7), upon the end of a crank-arm, 12 upon the end of the shaft I), which has hearings in the arms of the cylinder B, and to whichthe series of gripers are rigidly secured. Both parts of the cam are similarly shaped, and neither revolves with the shaft B", which they encircle, and whereby the cylinder B is supported and rotated; but they differ in that one, D, is oscillated and the other, D, is stationary. !Both are supported upon a sleeveextension, (1, of the hanger D, within which the shaft 13 revolves, and which is supported from a transverse portion of the frame A upon the opposite side of the cylinder from that given in Fig. 3, and as shown in Fig. 4.

The oscillating cam, which, of course, is loose upon said sleeve, is actuated by arod, E, ecoentrically joined to a gear, E, meshing with the gear B upon the sh aft B. The stationary (No model.)

part is threaded or otherwise rigidly held by the sleeve. The connection of the rod E with the gear E is through a yoke, e, standing out from the side of the gear to avoid interference with the gear-journal. The gears E and B are relatively so proportioned that the former revolves once while the latter revolves twice.

With this construction of the sheets which are fed along by the tapes through the rollers 0 each alternate one is caused to be seized by the gripers and carried around the cylinder B during one revolution thereof. The gripers are caused to open to receive the sheet when they reach the position shown in Fig. 1 by the contact between the roller 1) and the cams, and to close upon the sheet assoon as the roller has passed the eccentric surface of the cam, as shown in dotted lines in the same figure. During this operation the two halves of the cam remain coincident, or snbstan tiall y so, so that the griper remains open during a short time only. At the next revolution of the cylinder, however, while the griper is opened at the same point and the sheet released, the oscillating cam will have moved to the position shown in Fig. 2, thereby doubling the length of the eccentric surface which affects the griper, the roller 1) being compelled to pass first over the stationary cam and then over the moving one. This prevents the closing of the griper at the second revolution until after it has passed the point at which the sheets areseized, so that every second sheet travels along the tapes without being taken up by the cylinder.

It has been customary heretofore to employ switches with this class of cylinders to turn off the sheet therefrom at the proper point in its revolution; but I find that with the cylinder placed above the carrying-tapes, as shown by me, the switches may be safely dispensed with. This maybeowingtotheadhesionresultingfrom bringing the sheets of paper together, or the centrifugal action, or the gravity which pulls the front end ot'the sheet down when itis released by the griper, or all combined. By thus dispensing with an unnecessary feature the mechanism is very much simplified. A series of small ment after its release from the griper until it comes in contact with the succeeding sheet.

I claim- 1. The combination, with the gripers mounted upon a shafthaving a crank and roller for communicating motion, of the halved cam, whereof one part is stationary and the other part is oscillated to lengthen the action of the cam at alternate revolutions of the cylinder, and mechanism, substantially such as described, for 0s cillating said movable part, substantially as set forth.

2. The described means for imposing one sheet upon the other, consisting of the delivery-tapes, the cylinder located above the tapes and provided with gripers timed to seize the JNO. J. CLAUSE.

Witnesses:

H. M. MUNDAY, T. BROWN.

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