US32395A - Improved machine for making upholstery-springs - Google Patents

Description

ilNrTED STATE-S Arnsrr einen...

M CHARLES A. YOUNG, OF PROVIDENCE, RHODE ISLAND.

'IMPROVED MACHINE FOR MAKING UPHOLSTERY-SPRINGS.

Specification forming part of Letters Patent No. 32,395. dated May 2l, 1851.

To all whom it` may concern:

Be it known that I, CHARLES A. YOUNG, of Providence, in the county of Providence and State of Rhode Island, have invented a new and useful Improvement in Machines for Making Upholstery-Springs; and I do hereby declare that the, following is afull, clear, and

exact description ofthe same, reference being had to the annexed drawings, making part of this specification, in whicl1 Figure l is a front elevation of my improved machine. Fig. 2 is a side elevation of the same. Figs. 3 and 4 are details referred to in the course of the description.

Similarletters of reference denote like parts in all the figures.

A A is the frame and table ofthe machine. Upon said table, in suitable bearings formed for the purpose, are placed the shafts B B, carrying the two feeding-rolls O O. The action of the two shafts is united by means of the gears cZ- d upon each. The same are 'revolved by means of the gear D, driven by gear F, vto which motion and power are communicated by means of the pulley G. The feeding-rollsO O are grooved upon their face to receive and lcarry the wire, which is introduced between the said rolls, and thence passes to the ceilingroll R.

Between the feeding-rolls and theV coilingroll R is a stand, l, the upper part of which serves as a rest or support to the coiling-wire as it passes from the former rolls to the latter, as shown in Fig. l. It therefore conforms to the curve of the larger coils of the spring, to which it is most serviceable, beside having a groove, Z, in the curved face for the passage of the wire, as shown in Fig. 4. The coiling-roll turns in the upper end of the `rod 2, which slides perpendicularlyin the sleeve K upward and downward by the action of the heart-cam n upon the point of set-'screw 8. l

The above-described g'rooved rest l,together with the perpendicular movement of the coiling-roll B, constitute one feature of invention in my improvement in contradistinction with a horizontal1 movement (of the coiling-roll) approaching and retreating from the feedingrolls without the grooved rest, which forms the subject-matter of a separate patent granted to me, the said Charles A. You-ng, and Solomon W. Young, September 28, 1858. As the coiling-roll (as described in the said patent) appreaches the feeding-rollshorizontally, the

coils of the spring aresuccessively diminished in size, and the strain upon the wire is con- 4sta-ntly increasing.

perpendicular movement of the said roll R` close to the feedingrolls, besides varying the sizeof the coils', also acts as a support to the outside of the coil, varying in position according to the size of the coil, so that not only is the crowding of the wire prevented but a variable support is attained, which adapts itself to the requirements of the coiling-wire. It will also be noticed that the upward movement of the coiling-roll, in diminishing the size and forming the successively smaller coils' of the spring, bendsthe wireV around and against the upper feeding-roll, the face of `which serves as a support to the inside of the (smaller) coils. Finally, the proper curve is imparted to the successive coils ofthe spring between the feeding and coiling rolls in such a manner as will support the wire in the proper place and prevent its breaking, by

means of the grooved rest l, combined with the perpendicular movement of the ceilingroll. The relative position of the feeding and ceiling rolls, and the perpendicular movement ofthe latter causesthe coils to form above the feeding-rolls, as shown in Fig. l, and against the guard 3. rlhis guard is of cast or wrought iron of the peculiar forni shown by Figs. 1 and 2, arid is firmly secured to the frame, of the machine in the position shown. said guard is an overhanging lip, S, against which the larger coils are curved and cutoff when a spring is formed,` by means of the shears formed by said lip S, and the critter i, upon lever 5, as shown by Fig. 2. Said lever has-a weight, T,.upon one end, and this end is slowly raised during the coiling of one spring by the cam 7, acting through the medium of the rod and arm 4., sliding in the sleeve g,"said cam being revolved by shaft L, thereby dropping the cutter from the lip S, between which At the topof position to forni the first or larger coil.

Q y 4 i the large coil enters, Figs. l and 2, and-is severed at the proper time by the descent of spring `certain as soon as it is completed, and forms another feature of invention in my improvement. The shaft L is revolved by means of the gear I, which is driven by gear J on shaft Y, which is driven by gear E from the drivinggearF.'v When itis desired to increase or diminish the size of the springs it may be done by turning the 4screw 8 in the rod 4, thereby raising the coiling-roll R, to produce a spring of-smaller diameter, and lowering the roll to produce one of larger diameter.

In the operation the wire is inserted in the groove of the feeding-rolls when they are revolving, and with the several parts of the machine in the position shown in Fig. l. rlhe Wire is carried through the groovel of the rest 1, thence to the ceiling-roll R, which is in As the Wire passes through the rolls the cam n revolves in the direction shown by the arrows and raises the rod 2, and with it the coilingroll, which diminishes regularly the diameter of the successive coils of the spring as they are formed. YVhen the cam n completes a revolution a spring, properly `formed, is also completed, and the coiling-roll having returned to the position shown in Fig. l the cam 7 is also brought into the position shown in Fig. 3, thus letting fall the rod 4, and with it the weighted end of -the lever 5, causing the shears i s to sever the completed spring from the last-formed coil.l The coiling proceeds until another similar spring is formed, which is cut off in its turn, and thus the operation continues.

Having thus described the construction and operation of my improved machine, what l claim is- 1. The said grcoved rest l, in combination with the coiling-roll R, when the said roll has a perpendicular movement close to and passing the upper feedingroll, for supporting the inside and outside of the coil at the proper time, in the manner substantially as herein specified.

2. The guard 3, formed and arranged in rela tive position with the feeding and ceiling, as shown, in combination with the peculiar shears or cutting device, when the latter is operated by the force of the descending weight T, substantially as and for the purpose herein specified.

CHARLES A. YOUNG.

\Vitnesses:

Isaac A. BROWNELL, DAVID HnaroN, 2d.

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