US88031A - Improvement in making- cone springs - Google Patents

Description

imi ,Staten Matese-W @sind i Letters Patent No. 88,031,datel-March 23, 1869.

The Schedule referred to in these' Letters Patent and making pari: of the same.

To all `whom 'it may concern Beit known that I, WILLIAM H. GOODALE, of Colton, in the County of St. Lawrence, and State of New accompanying drawings, forming-part of this specifica.

tion, in which-,

Figure 1 is a front view or my improved machine.

Figure 2 is a top view of the same, part being broken away, to show the construction.

Figure 3 is a side view of one of the springs.

Figure 4 is a detail top view of the same.

Similar letters of reference indicate like parts.

My invention has for its object to furnish an improved machine for forming or turning upholstering cone springs, which slss-ill be simple in construction, and effective in operation, forming the' springs quickly and accurately', and

It consists in the construct-ion and combination of the various parts, as hereinafter more fully described.

A is the innin frame of the machine, to which are attached the bed-plate B and die C, by which the upper end of the spring D is formed.

E is the vertically-sliding frame, which slides up and down in guides in the frame A.

The cross-balie of the fra-nie E acts as a follower for set-ting, or forming the spring in the die, or holder, C.

F is `a cone, upon the base of which is formed or to it is attacheda journal which works in bearings in the frame A, and to the rearwardly-projecting end of which are attached 'a crank, G, or a pulley, by nicnns of which the said cone F is revolved, and a ratchet-whcel and pawl, by which the said conc may be held securely in place, and prevented from being drawn back by the tension oi' the wire.

The conical surface ofthe cone F is grooved spiially in exactly' thc form of the required spring.

The forward end of the spiral groove of the conc F terminates in a longitudinal groove formed in the cylindrical forwardlyprojecting part of the said cone, which said groove islnade so deep, that when the vertical upper end of the vspring Dis placed in it, the said g maybe exactly in the axisl upper end of the said sprin of the cone F.

In the base of the cone F, at the rear end of the spiral groove in said cone, is secured a knife, or cutter, H, upon which the wire is out oii by the descent ofthe cutter I, formed upon or attached to the outer, or free end of the lever J.

The lever J is pivoted to the frame A, and its rear end is held down, holding the cutter I away from the cone F by the spring K, which is attached to the frame A, and the free end of which rests upon the uend of the lever J, as shown in iig. l.

L is a lever, which is pivoted to the frame A, in such a. position that'its inner end may rest against the inner end of the lever J, as shown in fig. 1.

M is afconnecting-rod, the upper end of which is at tached to the outer end of the lever L, and the lower end of which is attached to the treadle, or foot-lever N, which is pivoted to the frame A, in such afposition that its outer, or free end' may be conveniently reached `and operated by the operator with his foot. v

. P is'a cylindrical reduced portion of the top crossbar of the frame A. This projection, or tube, P, is perforated longitudinally in its outer end, and, in using the machine, one end of the wire, from whichthe spring is to be formed, is inserted therein, and the same bent to form a right angle.

is then inserted in the longitudinal gmove in the cylindrical forward end of the cone F. Then, by revolving the cone F, by means of the crank G, the wire will be wound around the cone F, following the spiral `groove of said cone, and thus receiving the desired form. As the wire reaches the rear end of the said spiral groove, t-hc operator, by pressing down upon the treadle N, cuts it off, when the formed spring may be removed from the cone, and the upper vertical end, which has been previously bent by means of the tube P, is inserted in the pertbration in the cross-bar c', as shown in red.

The lower, or enlarged part of the spring D, is also placed in the cavity c in the holder` O; and in order that the spring may be held firmly, or prevented from turning,'the lower end of the wire, or spring, is placed in Contact with the shoulder d formed in the cavity c of the holder C. It will be understood that, for the purpose of arranging the spring in this position, the frame E is adjusted so as to bring the crossfbar e at a proper distance from the holder U.

The operation isnow completed by the operator pressing, with his foot, upon the lower cross-bar of the frame E, whereby the middle and parallel crossbar c' is pressed down upon the spring D, and the same set, or caused to assume the desired shape.

When formed in this way, the upper, or vertical end of the spring D willbe exactly in therayxis of said spring, so thatpressure applied tosaid vertical end will bear equally upon all parts of said spring, and compress it vertically and equally.

Havingthus -described my invention,

I yclaim as new, and desire to secure by Letters Patent- The improved apparatus for forming upholstering cone springs, consisting of a die, or holder, O, frame A,

vertical-sliding frame E, tube I, spirally-grooved cone F, cutters H and I, lever J, spring K, level L, connecting-rod M, treadle, or foot-lever N, and ratchet and pawl, all constructed and arranged upon the frame, substantially as herein shown and described, and for the purposes set forth.

WILLIAM H. GOODALE.

Witnesses i EDWARD ORARY, E. D. BROOKS.

lhe straight, or vertical upper end of the spring D-

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