US145542A - Improvement in paper-feeding machines - Google Patents

Description

6; M. WIELINGS. Paper-Feeding Machi-ne-s-.-

Patented Dec. 16,1873.

UNITED STATES PATENT @rrron CHARLES M. 'WIELINGS, OF SAN FRANCISCO, CALIFORNIA.

IMPROVEMENT lN PAPER-FEEDING MACHINES.

Specification forming part of Letters Patent No. 145,542, dated December 16, 1873; application filed September 25, 1873.

To all whom it may concern:

Be it known that I, CHARLES M. WIELINGS,

of the city and county of San Francisco, State v of California, have invented certain new and useful Improvements in Machines for Feeding Paper to Printing-Presses; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings and to the letters marked thereon.

The object of my invention is to provide a machine for feeding sheets of paper to printin g-presses in a regular and automatic manner; and it consists in the employment of a table hinged at one end, and raised slowly at the other as the pile of paper is reduced. Above this end is placed the feed-cylinder, which has flexible plates projecting from a portion of its circumference, these plates throwing a sheet of paper forward at each revolution, so that it will be seized by the tapes at the front of the machine, and carried down to a point where the nippers from the press will seize it. These devices are operated by suitable mechanism, more fully described hereinafter.

Referring to the accompanying drawings for a more complete explanation of my invention, Figure 1 is a perspective view of my machine. Fig. 2 is a longitudinal section. a

A is a table, upon which the paper is placed in a pile. This table is hinged at its rear end, so that the front end can be gradually raised by the endless screw and worm-gear B C as the pile of paper becomes lessened in height, the gear C serving as a nut to operate and raise or lower the screw C, which moves the table. This arrangement compensates for the gradual decrease of the pile of paper, and keeps it at such a height that the feed-roller will always find the paper at the proper position to allow a sheet to be taken. This wormgear is driven by means of a cam, D, upon the mainshaft E. Thiscam operates the lever upon the thickness of the paper being used. The feed-roller M extends across the frame just above the table, and has a part of its circumference provided with rubber strips or arms N, which take one sheet from the top of the pile of paper at each revolution, and deliver it through a narrow slit between a solid bridge, 0, and the fender P, which latter is provided with backward-extending arms Q. A set of endless tapes, R, pass over pulleys S upon the shafts T T, and these tapes carry the sheets to the nippers of the press, which take them ofl'. A bar, U, extends across the frame between the tapes, and is supported at each end by the sliding bars V, which have a vertical movement given them by a cam, to be hereinafter described. Bars WV are secured to the transverse bar U, so as to stand parallel with the tapes, and, when the whole is elevated by the cam, these bars W will be raised above the level of the tapes. The sliding vertical bars V have a bearing at their upper ends for the transverse roller X, which rests upon the tapes, and is turned by them as they pass over the upper pulleys, S 5 but this roller is also elevated at the same time with the bars WV. These bars are for the purpose of supporting each sheet of paper just as it arrives at the nippers of the press, and thus preventing it from receiving any further motion from the tapes, which would otherwise cause it to move along and interfere with the action of the nippers. The main shaft E carries a cam, Y, which operates an arm, Z, and, through this arm, a bell-crank, a, pawl I), and ratchet 0, in the same manner heretofore described for operating the wormgear. The gear-wheel d, upon the same spindle with the ratchet c, operates the pinion c with an intermittent motion, and thus rotates the feed-roller which is secured upon the pinion shaft. A belt, f, passes around the pulley g upon the main shaft, and thence extends around the pulley h upon the shaft of the upper pulley, S, thus driving them and the tapes. A third (521111,i, operates to raise the arms or bars V, by which the bars WV are alternately elevated and depressed.

By this arrangement, I am enabled to provide a paper-feeder which is automatic in its action, and which feeds the paper smoothly and at the proper rate of speed for the press.

Having thus described my invention, what 2. The combination of the pawl H and hell- I claim. as new, and desire to secnreby Letters crank G with the ZLdJllStlllg-SCIGW L, adapted latent, isto limit the movement of the pawl, as described. 1. The carrying-tapes R and the interme- In witness whereof I have hereunto set my diate bar U with its cross-slats V, which rise hand and seal.

and fall alternately, for the purpose of snp- CHARLES M. XVIELINGS. [L. s.]

porting the paper and preventing its further Witnesses:

movement by the tapes while it is being seized C. V. M. SMITH,

by the nippers, substantially as described. M. G. UPTON.

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