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A. G. HOBBS. Machines for Winding wads.

Patented April 15, 1873.

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Machines for Winding wads. No, 137,773, PatentedApril15,1873.

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PATENT OFFICE.

ALFRED CHARLES HOBBS, OF BRIDGEPORT, CONNECTICUT.

" IMPROVEMENT IN MACHINES FOR WINDING WADS.

Specification forming part of Letters Patent No. 137,773, dated April 15,1873; application filed November 30, 1812.

To all whom it may concern:

Be it known that I, ALFRED CHARLES HOBBS, of Bridgeport, in the county of Fairfield and State of Connecticut, have invented an Improved Machine for Winding Wads 3 and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawing making part of this specification- Figure 1 being a front elevation of the machine; Fig. 2, a side elevation of the same; Fig. 3, a vertical section thereof in a plane indicated by the line a; a: of Fig. 1.

Like letters indicate corresponding parts in all of the figures.

The nature of my invention consists in amachine for winding a strip of paper or other similar material into a wad, the machine being so constructed and so operating that its winding movement automatically and instantaneously ceases as soon as the wad is wound to the required diameter, and remains stopped until the wad is removed and the machine prepared for the winding of the succeeding wad, when it is again started.

The operative parts of the machine are all mounted on a table or frame, A, which may be attached to the edge of a bench or other suitable support. The paper is wound upon a spindle, B, which has a thin notch or slit, (1, cut in its end to receive and hold the end of the said strip of paper until the winding commences. This spindle is caused to revolve by means of a shaft, C, which receives its motion from a driving-belt running over a pulley, b, thereon, or by other suitable means. The spindle B and shaft C are in axial lines with each other, and their adjacent ends terminate respectively in disks 0 d, whose faces may be brought into contact, and thus communicate the revolving motion of the shaft to the spindle by friction, or separated, and thereby stop the action of the shaft on the spindle. To effect this alternate contact and separation, the shaft C is allowed a longitudinal movement in its hearing or bearings. The shaft C is pressed against the spindle by means of a lever, D, the upper end of which has an adjustable pin or stud, f, in line with the shaft, and having on its end a revolving friction pulley or sleeve,

' g, which bears against the outer end of the shaft, and pushes it endwise without interfering with the revolution thereof, and may serve as a coupling to draw back the shaft. The other end of the lever extends down and forward under the other parts of the machine, and has a treadle or stirrup suspended from it, where the link 2' is represented. By depressing the lever the spindle is caused to revolve.

A counter-spring, It, serves to raise the lever when the stirrup or treadle is relievedof its pressure. In connection with the winding-spindle B a sliding bar, E, with a freely-revolving roller, G, on its forward end, is situated directly back of the end of the spindle where the wad is wound, and its sliding movement is at right angles to the axis of the spindle. It is caused to slide toward the spindle automatically by means of a weight, I, and cord running over a pulley, m, substantially as shownin Fig. 2, the weight being sufficient to press the roller Gr against the forming wad with the desired force to compact the paper properly on the wadroll. The sliding bar is drawn backward by pressing on a treadle at the lower end of a cord, 'n, which runs over a pulley, 0, and is attached to the rear end of the sliding bar; or it may be moved automatically. The forward end of the sliding bar is pivoted to a vibrating arm, 17, the other (lower) end of which is also pivoted to a sliding bar, H, which has a movement opposite to that of the sliding bar E, and bears an adjustable tappet, r, so situated that it is in position over a step or projection, s, of the lever D, when the latter is depressed; and so long as the roller G of the sliding bar E presses against the winding wad it holds the lever down; but it is so adjusted in relation to the said stop and thelever that the moment the wad is wound to the required size the roller E is pushed back by the wad itself sufficiently to cause the tappet r to release the lever, when the counter-spring 70 immediately raises the lever, and thereby draws the driving-shaft C out of contact with the spindle, leaving the same free to stop instantaneously; but it is not sufficient to cause the cessation of the driving motion upon the spindle, since its own momentum may continue the motion for a while. To provide for the instantaneous stopping of the motion of the spindle as soon as the drivin g-shaft is separated therefronn'a self-acting stop-brake, I, is arranged in connection with the lever D, as shown most clearly in Fig. 3. It is pivoted to the table, and situated directly beneath the friction-disk 0 of the spindle B. The face of the friction-brake I is pressed upward against the disk by a counter-weight, t, and is held down away from the disk by a hook projection, 02, on the end of a hanging rod, a, the said projection bearing under the lever D, and being so adjusted that when the lever D is depressed the friction-brake I is held away from the disk; but the moment the lever is re leased, and rises so as to uncouple the drivin gshaft from the spindle, it allows the counterweight to raise the brake and press it against the disk with sufficient force to stop the revolution of the spindle instantaneously. As soon as the revolutionof the spindle is arrested the strip of paper is severed from the wad, and the loose end is attached by a little paste, and secured by depressing the lever so as to give a few turns to the spindle and wad. The lever is then again allowed to rise and the spindle to stop its motion, and the bar E with roller Gr moved back out of the way. The wad is then stripped from the spindle by means of a sleeve, w, which has a sliding movement thereon by means of a lever, L, pivoted to the machine, and fitting, by a projection, 3 in a groove in the periphery of the sleeve. The sleeve is then moved back on the spindle, the paper strip again inserted in the slot in the spindle, the lever D depressed for winding another wad.

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

1. A-wadwinding machine operating, substantially as herein described, so that it automatically stops as soon as the wad attains the required size, as specified.

2. The roller G on a sliding bar, E, operatin g by means of the vibrating arm 19, sliding bar H, and tappet 1', or their equivalents, in connection with the lever D, mandrel B, substantially as herein specified.

3. The combination of the spindle B and its friction-disk c, the driving-shaft O and its friction-disk d, and the lever D and its projection f, the vibrating lever 19 and its accessories, sub staatially as and for the purpose herein spec ifie 4. The wad-stripping sleeve w, in combina tion with the spindle B, substantially as here in specified.

ALFRED CHARLES HOBBS.

Witnesses:

A. J. HOBBS, HENRY 0. RYLANDS.