US249367A - Watch-regulator - Google Patents

Description

(No Model.)

c. R. KINBHAN. WATCHV REGULATOR.

Patented Nov. y8, 1881'.v

ATTDRNEYS.

UNITED STATES PATENT OFFICE.

CHARLES R. KINEHAN, OF SPRINGFIELD,ILLINOIS.

WATCH- REGU LATO R.

SPECIFICATION forming part of Letters Patent No. 249,367, dated November 8, 1881.

Application filed April 6, 1881. (No model.)

To all whom it may concern Be it known that I, GHARLEs R. KINEEAN, of Springfield, in the county of Saugamon and State of Illinois, have invented a new and use- -ful Improvement in Watch Regulators, of

which the following is a specification.

My invention relates to mechanism for facilitating the adjustment of the balance or hair spring by the watch-maker before the watch is exposed for sale.'

The invention consists in a novel construction, combination, and arrangement with relation to each other of the cock, the-regulator, the hair-spring, a plate for carrying the stud, and other devices, whereby the adjustment of the balance-spring and the timing7 of the watch by the maker is accomplished. with less expenditure of time and labor than by the methods heretofore employed.

In the accompanying drawings, Figure l is a topview of my invention. Fig. 2 is a transverse vertical section taken in the line ac x, Fig. l. Fig. 3 is a view ofthe lower side of the stu dcarrying plate, showing the mode of attaching the spring to the stud.

A is the balance-wheel, having one end of its staff a journaled in the usual manner in a plate of the watch, and the other in the cock E.

B is the balance-spring or hair-spring, attached at its inner end, in any suitable manner, to the staff or arbor a of the balance-wheel. lts outer end is attached to the stud C by being passed through a slot, c2, in said stud, and secured by a wedge'or key, c3. The stud is inserted in the stud-bearing plate D, and secured by a set-screw, c4, or in any other suitable manner. The stud-bearin g plate D is connected to the cock in the following manner:

Attached to or made in one piece with the cock is av circular plate, e, the diameter of the lower face of which is less than that of the upper, the sides of the plate being inclined at an angle of about teu degrees from a vertical line.

The inner end of the stud-bearing plate D is a mutilated circle, d, the inside bearingsurface of which is also inclined at an angle of about ten degrees from avertical line, so as to be exactly parallel with lthe inclined bearing-surface of the plate e. When the studbearing plate D is laid exactly over the plate e and pressed down the mutilated circle d springs over the upper and larger portion of said plate e, which then holds it securely in place, allowing, however, a rotary motion when sufficient force is applied to the outer end of the plate D.

The regulator F is provided with curb-pins b, in the usual manner. Its inner end is a mutilated circle, f, having the inside bearing-surface inclined similar to the 011e above described; but as it occupies a position above the plate D, and consequently on a larger part ofthe plate e, the circlef is slightly larger in diameter than the circle d.

The method heretofore employed for timing the watch by the workman before exposing it for sale is as follows: The balance-wheel is weighed, and a suitable spring is selected and gaged and attached in place. The wheel is then set in motion and compared with a vibrating standard balance wheel and spring, and if any discrepancy is observed in the vibrations the. hair-sprin g is loosened in the stud and either lengthened or shortened as muchas is necessary to cause the vibrations to conform to the standard as nearly as can be judged by the eye. The watch is then allowed to vrun for about fifteen hours, and if at the end of that time it is discovered to be either fast or slow the sprin g is again adjusted. It is frequently necessary to repeat this operation several times. It sometimes occurs that in readjusting the spring it becomes out of true,77 and requires to be entirely removed and trued and then replaced.

By means of my invention the workman causes the vibrations to conform to the standard by moving the stud-carrying plate D inthe proper direction for lengthening or shortening the spring, and consequently the vibrations.

Another advantage in my invention is that as the plate D has for its center of motion a point directly over the staff of the balancewheel there is no tendency to get the spring out of true in moving the plate, and as the stud C has its shank round instead of' angular circle ends (l f, with their inner surfaces conitis more easily adjusted in its seat, so as to inverging upward for engagement with said plate sure the true position of the spring. c, substantially as and for the purpose de- Having thus described my inventiomclaim scribed. as new and desireto secure by Letters Patent- 5 In awatch-regulator, the combination of the CHARLES R KINEHAN' plate e, having its sides converging down- XVitnesses: Wardly, and attached to or made in one piece C. WOLF, with a cock, E, of a stud-carrying plate, D, and H. B. MILLER.

1o a regulator, F, having, respectively, mutilated

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