US740552A - Attachment for printing-presses. - Google Patents

Description

PATENTBD 001B. 6, 1903.

I s e. Gross. ATTACHMENT FOR PRINTING PRESSES.

j APPLICATION FILED APR. 16. 1900. V

2 SHEETS-SHEET 2 N0 MODEL.

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SAMUEL G, GOSS, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE GOSS PRINTING Patented October 6, 1903.

PATENT OFFICE.

PRESS COMPANY, CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

ATTACHMENT FOR PRlNTlNG-PRESSES.

SPECIFICATION forming part of Letters Patent No. 740,552, dated October 6, 19.03.

Application filed April 16, 1900. Serial No. 13,059. {1N0 model.)

provements in Attachments for Printing- Presses, of which the following is a specification, reference being had to the accompany-- ing drawings.

My invention relates to perfecting-presses,

and has for its object to provide improved means for handling the shafts on which the webs are carried. In perfecting=presses it has been the practice to provide the frame of the press with an extended support at the end at which the web is fed into the press capable. of supportingan extra roll beside and paral-' lel with the roll on which the printing is being done, the object being to expedite the substitution of a fresh roll for an exhausted one and delay the printing as little as possible. In use the roll nearest the printing mechanism is first used, and when exhausted it is removed and the extra roll put in its place:

The shafts upon which the rolls are mounted are quite heavy and are somewhat difficult to handle, and heretofore it has been necessary to remove them by hand, so that not only were several men required to remove the shaft, with the empty roll carried by it, but considerable time was required for the operation.

My invention has for its object to overcome the objections incident to the former practice; and it consists in providing. mechanism by which the shaft, withthe exhausted roll, may be quickly and easily removed.

Myinvention also includes certain details of construction which will be hereinafter pointed out. In the drawings, Figure I is a side elevation. Fig. 2 is a plan view; and Fig.3.is a detail, some parts being in section.

Referring'to the drawings, 4 indicates the frame of the machine, which is adapted to be secured to the end of the press, having horizontal arms 5 6 7 for that purpose. The upper end of the frame 4 is bifurcated, as shown in Fig. 1, forming arms 8 9. There are also arms 10 11 12, projecting oppositely to the arms 5 6 7. The arms 1O 11 12 are braced by braces 13 14 15', respectively, as-shown. The

arms 10 11 12 are each provided with bearings 16 17 at their inner and outer ends, respectively, each adapted to receivea roll-shaft 18. The bearings 16 17 are best shown on arm 12 in Fig. 1. Clips 19 are provided for holding the shafts in the bearings 16 17. Each of the roll-shafts 18 is provided at one end with a tension-cylinder 20, which when the shaft is in position lies outside of the arms upon which it is supported, as shown in Fig.

2. The tension-cylinder is adapted to be embraced by tension-straps 21 22, which are semicylindrical in shape and are adapted to fit closely upon said cylinders, as shown in the drawings. The tension-straps are pivoted to the arms upon which they are respectively carried, and their free ends are adjustably secured together by pivoted bolts 23 and nuts 24, as shown in Fig. 1, so that the tension upon the cylinders may be accurately regulated. Y

25 indicates adjusting-screws for adjusting the 'roll s hafts longitudinally. This, how

ever, forms no part of my present invention and need not be further described.

26 indicates endless chains, a pair of which is provided for each of the arms 10 11 12, one of said chains being mounted on sprocketwheels 27 28 29, provided at each side of the frame 4. Such sprocket-wheels are mounted on studs 30 31 and a shaft 32, as shown in Fig. 2, a pair of studs 30 '31 being provided at each side of the frame of the machine, the shaft 32 extending entirely across the frame of the machine and having a sprocket-wheel at each end thereof, as shown in Fig. 2. 'By this construction the pair of chains 26 ap propriated to each of the arms 10 ll 12 lie inside and adjacent to the sides of the frame. The sprocket-wheels 29 of eachset are placed near the bearings 16 of each of the arms 10 11 12, so that the chains 26 extend down in number of perforations 36, provided in the chains operated by it, into position to receive the roll-shaft of the exhausted roll. By then rotating the crank in the direction indicated by the arrow in Fig. 1 the chains travel in the direction indicated in Fig. 1, carrying the exhausted roll, \i' ith its shaft, upward and outward. This may be continued until the roll is carried to the extreme ends of the arms 10, 11, or 12, as indicated at the top in Fig. 1. The roll will then clear the fresh roll supported at the ends of the arms 10, 11, or 12, so that the Web from such roll may be used eitherin its original position or after first moving it to the inner ends of the arms upon which it is supported. The exhausted roll, with its shaft, may afterward be removed at convenience without interfering with the operation of the press. When the exhausted roll is moved to the desired point, the crank is locked in position by means of the locking-pin 35.

It will be understood that instead of chains other equivalent devices may be employed,

and various other modifications may be.

made Without departing from the spirit of my invention.

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

1. In a printing-press attachment, the combination of a frame, roll-supporting devices carried thereby, and roll-lifting mechanism 0 )nsisting of endless-belt mechanism having devices adapted to engage the roll-shafts to lift and remove said roll shafts, substantially as described.

2. In a printing-pressattachment, the combination of a frame, roll-supporting arms as 10 carried thereby, endless chains carried by said frame, suitable rotary supports for said chains, said supports being arranged to carry said chains in an inclined position over said roll-supporting arms, devices carried by said chains adapted to engage the roll-shafts, and

means whereby said chains may be caused to travel, substantially as described.

3. In a printing-press attachment, the combination ofa frame, roll-supporting arms as 10 carried thereby,triangularly arranged chains 26 carried by said frame, suitable rotary supports for said chains, devices carried by said chains adapted to engage the roll-shafts, and means whereby said chains maybe caused to travel, substantially as described.

4. In a printing-press attachment, the combination of a frame, arms as 10 carried thereby, said arms being adapted to support a rollshaft, sprocket-wheels 27 28 29 carried by said frame, the sprocket-Wheels on each side of the supporting-frame being triangularly arranged, chains mounted on said sprocketwheels, means for moving said chains, and devices carried by said chains adapted to engage the rollshafts, substantially as described.

5. In aprinting-press attachment, the combination of a frame, roll-supporting devices carried thereby and endless-belt lifting mechanism carried by said frame and extending upwardly and outwardly over the roll-supporting devices, substantiallyas described.

- SAMUEL G. GOSS.

Witnesses:

JOHN L. JACKSON, HARRY O..MONSON.

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