US478347A - Sheet-delivery apparatus for printing-machines - Google Patents

Description

(No Model,)

F- MEI SEL. SHEET DELIVERY APPARATUS FOR PRINTING MACHINES. No. 478,347. Patented Ju1y 5, 1892.

Fig. 1.

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FRANCIS MEISEL, or BOSTON, MASSACHUSETTS] SHEET-DELIVERY APPARATUS FOR PRiNTlNe-MAcHiNEs.

SPECIFICATION forming part as Letters Patent No; 478,347, steamy 5, 1892.

Applicationfiled December 21,1889. Seria,1No. 334,626. (lilo model): i

To all whom it wwy concern:

Be it known that I, FRANCIS MEISEL, a citizen of the United States, residing at Boston,-

in the county of'Suifolk and State of Massachusetts, have invented certain Improvements in Sheet-Delivery Apparatus for Printing- Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specification, in which Figure 1 is a vertical section of my inn proved sheet-delivery apparatus for printing-machines, taken on the line X X of Fig. 2. Fig. 2 is a plan of the same.

My invention relates to certain improvements in sheet-delivery apparatus for printlng machines; and it consists in certain novelcombinations of parts and details of construction, as hereinafter fully set forth and specifically claimed.

In the said drawings, A represents the frame-work, and B the table upon which the printed sheets are delivered after being sevcred bythe cutting-knives (L 1;. Beyond these cutting-knives a?) are placed tapes 0 d, which seize the paper at its edges and carry it out in a straight horizontal line as long as the feed-rolls e f, by which the paper is fed forward, continue to revolve. are run upon pulleys secured to shafts g h, the shafts 9 being connected with and driven-by a train of gears D, Fig. 2, which receive their motion from the shaft of the lower feed-roll e. Between the front and rear pulleys of the tapes are placed curved .bars '1', over which the lower tapes run, as seen in Fig. 1, these bars '11 serving to support the tapes between these pulleys and prevent them from sagging, it being necessary to keep the upper and lower tapes close together in orhold upon the edges of the paper.

After the printed sheet has been severed by the cutters it is still held at its edges by the tapes, and to disengage the sheet from these tapes and force it down onto the table 15, I employ a light fly-frame O, composed'of two side bars 70, connected by tubes or end pieces Z, which are adapted to slide within or past each other, as seen in Fig. 2, whereby the width of the fly-frame may be varied in accordance with the distance between the tapes These tapes 0 d ing them upon the tubesor endpieces Z. The

side bars k of the fly-frame C are pivoted to the lower ends of two vertical bars n, the upper ends of which slide upon a horizontal bar 1), whereby they may be adjusted as required to vary the width of .the fly-frame, these bars a serving to support the fly-frame in its working position. The ends of the bar are provided with slides working vertically in suitable guides q, secured to the frame A, and to each end of the bar 1) is pivoted a link r,slotted at its upper end to receive astudor pin 0 at the end of a lever s, secured to a horizontal shaft 2 to one end of which is secured a le- -ver 10, to the outer end of which is pivoted a connecting-rod v, carrying at its lower end a cam-roll u which is acted upon by a cam, a on the shaft 10, the lower end of the rod 1; having formed thereon aforked guideb', which embraces and slides upon the shaft 10, by which it is supported, and thus, through the connections described, as the rod 1; is movedupward against the resistance of a spring 0,

is depressed, causing it to strike the printed sheet, disengage it from the tapes, and deposit it upon the table 13, the parts being returned to their normal positions by the springs as the cam a revolves, this cam being so timed that thetly-frame will descend immediately after the printed sheet has been severed and returned before the succeeding sheet is fed forward.

The fly-frame O is hung upon its supporting-bars n at a slight angle to the table B beneath, and normally held in such position by light spiral springs cl, as shown in Fig. 1, against a stop on each side, consisting of a pin 12, projecting from the vertical bar a and working in the slotted end of a link c, pivoted to the side bar it. This fly-frame isinelined, as described, so that as the sheet of paper is carried down it will be gradually deposited from one end to the other, thus driving out secured to the forked guide 1), the fly-frame the air from beneath and causing it to lie flat on the pile of printed sheets, as required, the spring d yielding to allow the fly-frame to assume a perfectly horizontal position on the completion of its downward stroke.

As the height of the pile of printed sheets on the table B increases as each fresh sheet is deposited thereon, it is obvious that the stroke of the fly-frame must be correspondingly diminished. This is accomplished by the sliding of the studs 0 in the slots at the upper ends ofthe links 7, which thus permit of the full stroke of the lever 3 without imparting a corresponding amount-of motion to the fly-frame,-suitable springs f being provided to normally hold the studs 0 at the up per ends of the slots of the said links 1'.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. In a sheet-delivery apparatus for printing-machines, the fly-frame C, composed of side bars 70 and end pieces or tubes Z, adapted to slide within or past each other, and the adjustable bars an, adapted to slide upon. the end pieces Z, substantially as and for the purpose described.

2. In a sheet-delivery apparatus for printing-machines, the fly-frame C, pivoted to the vertical bars n and adapted to be normally held at an angle to the table B beneathby a spiral spring d against a stop, substantially as and for the purpose set forth.

Witness my. hand this 19th day of Decemher, A. D. 1889.

. FRANCIS MEISEL.

In presence of P. E. TESCHEMACHER, HARRY W.'AIKEN.

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