US63521A - Swift mcg - Google Patents

Description

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SWIFT MCG. HUNTER, OF TERRYVILLE CON N EOTIOT.

Letters Patent No. 63,521, dated April 2, 1867.

IMPROVED MACHINE FOR GOILIG SPRINGS.

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TO ALL WHOM IT MAY CONCERN:

Be it known that l, SWIFT MCG. HUNTER, of Terryville, in the county of Litchfield, and State of Connecticut, have invented a new and improved Machine for Ceiling Springs; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a front elevation ofthe machine.

Figure 2 is a plan or top view.

Figure 3 is a vertical transverse section taken in the plane ofthe line :c x, fig. 2.

Figure 4 is a View of the end on which the spring is coiled.

Figure 5 is a detached view of a springr before it is coiled.

Figure 6 is a detached View of a spring after it is coiled.

Similar letters of reference indicate like parts.

This relates to an improved machine for ceiling clock and other similar springs. Heretofore all springs of this. kind have been coiled by l1and,making it a tedious and laborious operation, but this improvement is designed to coil springs by steam or other power at a great saving of time and labor.

A suitable frame is mounted upon a work-bench, W, upon which is hung a horizontal shaft, A., having 'bearings at each end and near the middle in standards B Bl B2. The shaft is provided with a crank, C, on the right-hand end, which crank, however, is designed merely for temporary use at one stage of the operation of ceiling a spring, and not as the motor, as hereafter explained. l For the purpose of tur/ning the shaft to coil springs, a driving-pulley, D, is fitted loosely on the shaft A, to be made fast and put in gear by ashifting clutch, E, which clutch is worked by a sliding bar, F, that passes through the standards B and Bl near the bottom.

For throwing the clutch E in gear with the pulley D, a handle, G, is provided, or any other suitable device may be used; and for throwing it out of gear, a side spring, a, is fastened at one end to the standard B1, while 'the free end is attached to the sliding bar F. When the clutch is engaged with the pulley D, it is held in place by a latch, b, which is thrown up `by the spring c against the sliding shaft F and catches in a notch-on the under side, to be released for the purpose of allowing the clutch to be thrown out of gear, as hereinafter explained. The latch Z1 is fastened at one end to a horizontal rock-shaft, d, on which is also fastened a vertical arm, e, which rises in front of the standard B. The'arm e has two small pins, m m, projecting from it near the upper end. On the shaft A is a brake-wheel, H, acted onV by a brake, f, that is pressed up against it by a spring, g, which spring is connected by a rope or rod, 7L, with a treadle, I, under the bench W; and on the lower side of ,the

'sliding bar F is a projection, i, the uses of which are all hereinafterexplained. Outside of the standard B is `a spring, 7c, 4, on the free end of which is a vertical pine, Z, that rises alongside of the vertical arm e and in front of the pins m m. In tbe left end of the shaftAis fixed an arbor, n, which projects outside of the standard B, upon which is a small peg or hook, s. A hinged metal Hap, p, is placed so as to bear up against the end of the arbor 1t, when required, or it may pass over the end of the arborby means of the hole made near its upper end, as shown in iig. 4 ofthe drawings. The springs to be coiled are flat steel ribbons, sometimes made with a hole or slot in one end, as shown at r, g. 5, and sometimes with a loop on the end, as shown att, iig. 6, by which the springs are attached. On the opposite end of the spring is a small hole, as shown at u, iig. 5, which hole is necessary for connecting the spring with-the arbor and holding it while it is coiled.

In orderto operate my coiling machine, the spring is put upon the arbor 1tv by hooking it on the peg s, through the hole in the end at u, after having passed it through or between the projecting pins ni 'm and over the rod The hinged ilapp is pressed up againstor passes over the end of the arbor n, to keep the spring in place when coiling in the usual way. A few turns are given to the shaft A by the crunk C, to start t-hc coil. 'lhe brakcf is released from the wheel H by depressing the treadle I, which draws down the spring y. The clutch E is engaged with the driving-pulley D by moving the sliding har F out with the handle Gr, which movement carries the projection z' over the spring g and keeps ythc brake f from contact with the wheel H. The moment this is donc the spring c forces up the latch l) to catch in a notch under the sliding bnr F, by which means the clutch'E is held in connection .vitlrtlie pulley D. The pulley D turns the shaft A, and coils the spring upon theeairbor n until it dra-ws upon the vertical pin Z, which passes through the holerin the ribbon, und is prevented from slipping off bythe pins mm upon the arm e, between which it passes. When the spring is suiliiciently coiled it draws the pin Zand arm etowa-t'd the stnndnrdB, thereby pulling over the rock-shaft d, thus releasing the latch b from the sliding borF, which is instantly thrown back by the action of the side spring a, discngnging the clutch E from the drivingpulley D, slipping the projection z' from the spring g, which then presses the branko u afuinst the wheel H and sto s the motion of the shaft A, reventin it from turnin back until the coil P a P P g g of the spring on the arbor n 'is secured by slipping on the enclosing segment of e ring, v, shown in iig. l6, by which coil springs ere held in place till yused. When this ring has been placed on the coil spring, the brake f is depressed alittle, to allow theshnft A to malte :L few beck turns by the recoil of the spring, until it runs out l enough to fill thc ring and secure itself` within it, when it is teken o' the arbor and the same operation is repented on other springs, When the loopt is used upon the end of the spring the pin lmey be dispensed with, the loop pressing against thepi'ns m m, 'to draw over the bar e and rock-shaft d.

My invention is not confined to the particular devices as arranged and described for eiecting the purposes thereof, as the devices may be varied in construction without departing from the principle of my invention und yet be substantially the same in operation.

Having described the construction and operation of my machine, what I claim as new, ond desire to secure by Letters Patent, isv f l l l. I claim the upright erm e, with its holding pins m m, in' connection with the rockshaft d, the latch la, and the spring c, arranged and operating a-s described, in combination with the sliding bar F, the shaft A, and the clutch E, substantiallyv :is herein set forth. v

2. I claim also the upright holding-rod l, in combination with the spring k, the erm e, and the arbor n, arranged and operating substzintially es herein described.

3. I claim also the sliding bar F, in combination with the spring g,.stud z', and brakef, and the brake-wheel H on the driving-shaft A, arranged and operating substantially es described.

SWIFT McG. HUNTER,

Witnesses:

JAMES HUNTER, SUsxn M. Buren.

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