US106372A - Improvement in devices for winding mainsprings of watches - Google Patents

Description

M. D. KELLY.

I v 'Watchmakers TooL. I No. 106,372. Patented Aug 16, [1870.

N.FETERS, PMQTO-LITMQGRAPHER, WASHINGTON, D C.

' ii any suitable. length, and

blinded tates Letters Patent No. 106,37 2, dated August 16, 1870.

IMPROVEMENT IN DEVICES FOR WINDING- MAINSPRINGS OF WATCHES.

The Schedule referred to in these Letters Patent and making part of the same- To all .whon't it may concern Be it known that I, lVIIGHAEL D. KELLY, of Cadiz, n the county of Trigg and State of Kentucky, have mvented a new and improved ll/Iainspring-NVinder;

and I do hereby declare that the following is a full,

'provided with gauging-springs to vary the depth of the recesses; also with pins for gauging the recesses to receivethe springs, and for controlling the relation of th.e,winder with the winding-shaft.

The said bars are also provided with an opening- .spring andclosing-screw, all as hereinafter more fully described. a V

Figure l is a plan view of my improved winder;

Figure 2 is a sectional elevation of the same. Also aside elevation of a winding-shaft and plate to be used with it; and

Figure 3 is a transversesection of the same taken on the line at a; of fig. 1.

Similai'letters of reference indicate corresponding p ts v v A and 13 represent the said two bars, made of metal, jointedat Chy a rule or any other suitable joint;

'"D is a closing-screw; and

E a spring for forcing them open. 1

' The free ends are made broad, and have semicircular recesses, F, in the edges fronting'each other, which together inclose a space about the size of, or littleless thznnthe barrels in which the springs are to be placed.

Grepresents spring plates, attached to the bars at one side, and carrying semicircular rings, H, which fit the recesses F, and move in and out of them sidewise.

The spring plates G are. provided with pins or.-

screws, 1, screwing into the plates A B, to prevent the sprihgs from being moved away too far, or to let the rings H be forced out of the recesses.

The bar B is made thinner opposite the recesses, so'as tohave a shoulder, K, leading fromth'e outside edge to the recess, tangential, or nearly so, to the wall of the recess. l r

L represents pins projecting from the bars near the recesses, which are to gauge the recess for the spring to the size of the barrel into which the spring is to be placed, by placing them inside of the barrel and unscrewing till t-heycome against the side wail'of the barrel.

These pins also control the relation'of the winding shaft with the barrel, as will be hereinafter more fully described.

M represents recesses in the rings H, for the studs on the ends of American watch-springs, by which they are attached to the barrels, the said recesses being to make room for the projections to allow the springs to coil snugly.

This improved tool is used in connection with a wiinling-shaft, N, and a face-plate, O, of the common sort, or any other, suitably arranged in the followin way:

The uncoiled spring is placed on the plate around the projecting end P of the shaft, which is provided with a small spur, end of the spring. j

The tool is then placed with the recessed face against the spring, and the pins L arelengaged with holes in the plate, as shown as S, so as to hold the tool in the proper position in relation to the plate 0 and shaft N. i

The shaft is then turned by the crank, and the spring wound thereon and drawn into the recess,-being guided thereto by the wall K;

As soon as the coil is completely drawn into the recess t-hej tool is pressed toward the'plate, so as to force the spring into' the recess enough for it to be confined therein by the walls thereof; but it will project sufiiciently to'flbei transferred to the barrel by placing the latter over, the springs, and then forcing it outof ,thetoo'l by the spring plate G, or by opening the bars A B, and letting the spring expand againstthe inner wall of the barrel. I

The end of the spring attached tothe shaft P, is detached from the spur thereon by turning the shaft backward, and allowing the-inner part to expand suffliciently to'spring away from the stud.

"This improved tool is especially adapted for inserting springs into barrels having the central studs U,

as the space at the center of the coil is free for the rcception'of the stud.

Having thus described my invention,

I claim as-new and desire to secure by Letters Patenti p 1. The winding and transferring-tool, composed of the bars A-B, jointed together as described, provided with. the recesses 1 spring plates and rings H, guideshoulder K, pins L, and the screw D and spring E,

all substantially as specified.

2. The combination, with a winding-shaft N and plate 0, of theimproved toolherein described, sub.- stantially as specified. The above specification of -my invention signed by me this 7 th day of April, 1870.

MICHAEL D. KELLY. Witnesses:

Geo. W. Mant s, L. S. Minion.

Q, that engages in the hole in the

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