US578778A - Printing-machine - Google Patents

Description

UNTTED VSTATES PATENT OEEICE.

VVAL'IER SCOTT, OF PLAINFIELD, NEW JERSEY.

PRINTING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 578,778, dated March 16, 1897. Application led January 30, 1895. Serial No. 536,638. (No model.)

To @ZZ whom it may concern,.-

Be it known that I, VALTER SCOTT, a citizen of the United States, and a resident of Plainfield, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Printing-Machines, of which the following is a specification.

In some printing-machines there are a number of printing-presses arranged one above Among the objects of this invention are the i placing of rolls of paper in position for use on any of said presses while the other roll or rolls are in place without disturbing anything already in use and free access to all part-s of the machine in making up and while printing. These objects are attained by the herein afterdescribed invention, which `is also illustrated in the accompanying drawings, forming a part of this specication, in which- Figure l is a side elevation, partly in section, of a printing-m achine composed of three printing-presses arranged one above another. Fig. 2 is an underneath view of a foot-board shown in Fig. l; and Fig. 3 is a side elevation, partly in section, showing another way of arranging the rolls of paper.

Referring to said drawings, the framework is indicated by the reference A, and the three printing-presses are indicated by the references P l?2 P3. The rolls of paper for such presses are commonly wound on iron tubes or spindles, which are variously connected with ,the machine-frame. There are three spindle-holders 7L' h2 71,3(sl1own in Fig. l) and two holders 7L 71,2 in Fig. 3. In Fig. l pairs of rails r r2 r3 are shown extending rearwardly. from the holders, (but one rail of each pair isshown the other being a duplicate of that shown its construction is plain,) and Fig. 3 like pairs of rails r' r2 are shown.

The rolls are hoisted by suitable means with their spindles just clear of the ends of the rails until they are opposite the desired press, when they are moved onto the proper pair of rails and rolled on their spindles to the spindle-holders. The roll-hoist may be of any usual or suitable construction. That indicated in the drawings consists of a grooved plate or plat-form B and a hydraulic apparatus whose piston operates the platform B. The lower press may be low enough for the roll R therefor to be rolled along the iioor F into place, the floor having a sloping section f.

In the upper case the platform B is raised, as in Fig. 3, and the web rolled into place, as rolls R2 R3. The rails may be of such4 length that two rolls of paper may be placed one behind the other, so that when the front web, as R3, is used up the end of the web'from the second, as R4, may be attached to its end, the spindle of the front web be taken out, and the second web be rolled in place. The rails r2 r3 are shown with notches h4 h4 for holding the spindles of such second rolls.

The foot-boards F are so mounted on the framework that they may be moved aside at any time, so that workmen can get close to the plate and other cylinders. This is preferably done by pivoting said boards on horizontal axes a and swinging them up alongside the uprights A2 of the frame A, where they are wholly out ofthe way. Suitable stopsb support the boards when down. When swung up, the boards may be moved so that their centers of gravity may pass beyond the vertical through their axes, and the boards then rest against stops, but the preferred construction is to use acounterbalancing-sprin g d, (or weight,) as this aids in swinging the boards up out of the way against suitable stops e on the frame A. Springs d have one.

end fast to t-he studs or axes of the boards and are kept from unwinding by the boards themselves.

The rolls of paper maybe mounted so that one is behind the other, as shown in Fig. 3.

Many changes in details may be made without departing from this invention, which is not limited to the precise construction shown.

Having thus fully described my invention, what I claim is- 1. In a printing-machine, the combination of a plurality of printing-presses-arranged one above another, holders for roll-spindles at one end of said machine, and also one above another, rails or extensions for the presses above the lower press extending beyond said holders a distance sufficient to allow hoisting of the upper roll or rolls wholly clear of the roll or rolls underneath when the latter are in position in said holders and arranged to receive and hold the roll-spindles, and a hydraulic `hoistV for hoisting the rolls to the upper rails, substantially as described.'

2. In a printing-n1achine, the combination of three or more printing-presses arranged one above another in parallel planes, and skeleton framework supporting the journals oi' the printing-presses and one or more footboards pivoted on horizontal axes and extending along the framework and lying normally horizontally and adapted to be swung upward out of the Way to afford ready access to the plate or other cylinders of` the middle press or presses, substantially as described.

3. In a printing-machine, the combination of three or more printing-presses arranged one above another in parallel planes, a skeleton framework having horizontal cylinderjournal-supporting parts, and uprights connectin g said horizontal parts, and one or more foot-boards pivoted to said framework on horizontal axes and normally lying horizontally and adapted to be swung upward along side the uprights, whereby ready access may be had to the plate or other cylinders, substantially as' described.

Signed at New York, in the county of New York and State of New York, this 29th day Of January, A. D. 1895.

WALTER soorr.

lVitnesses:

CHARLES A. BRODEK, R. W. BARKLEY.

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