US314672A

US314672A - howard

Info

Publication number: US314672A
Authority: US
Priority date: 1884-05-13
Filing date: 1884-05-13
Publication date: 1885-03-31
Anticipated expiration: 1902-03-31

Description

(No Model.)

0. M. HOWARD.

WATCH REGULATOR.

No. 314,672. Patented Ma,1".31, 1885.

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W m 56L UNITED STATES PATENT OFFICE.

CLARENCE M. HOWVARD, OF FREDONIA, NEIV YORK.

WATCH-REGULATOR.

SPECIFICATION forming part of Letters Patent No. 314,672, dated March 31, 1885.

I Application filed May 13, 1884. v (No model.)

To all whom it may c0ncern:

Be it known that I, CLARENCE M. HOWARD, of Fredonia, in the county of Chautauqua and State of New York, have invented certain new and useful Improvements in Regulators for Time-Pieces; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the acconr panying drawings, which form part of this specification.

My invention relates to an improvement in regulators for time-pieces; and it consists in the combination of a screw threaded shaft whichisswiveledin suitable bearings,atoothed wheel which meshes with the screw upon the shaft, and which is provided with a wrist-pin, and the lever which is slotted at one end, so as to catch over the opening, and which has an arm for controlling the movement of the hair-spring at the other, as will be more fully described hereinafter.

The object of my invention is to provide a regulator for time-pieces, by means of which the finest possible adjustments can be made, and thus regulate the time to a second.

Figure 1 is a plan view of a regulator embodying my invention. Fig. 2 is a side clevation of the same, partly in section.

A represents the base, to which are secured suitable journals or bearings, B. In these bearings or journals is the shaft 0, having a thread formed upon its center, as shown.

Recessed in the base A, and turning upon the pivotal bolt or screw D, is the wheel E, which has suitable teeth formed upon its periphery to adapt it to engage with the screwthread upon the shaft. WVhen this shaft is turned in either direction, the wheel is caused to turn correspondingly. Projecting from the top of this wheel is the wrist-pin F, which catchesin the slot G, made in the end of the lever H, and thus serves to move the lever for the purpose of acting upon the regulator when the screw-shaft is turned. This lever is pivoted upon the raised portionlof the base, and has projecting from this pivoted end the arm J. From the under side of this arm J projects the pin 0, which engages with the hairspring of the watch or other time-piece for the purpose of regulating the extent of its throw. WVhen the wheel is turned, the wristpin is caused to sweep around through a portion of a circle, and this movement causes the lever to turn upon its pivot a corresponding distance and effect the movement of the hairspring accordingly. The shaft is provided with the opening or openings through one end, and a slot or cut in the other end, so that either a pin or the blade of a knife may be used to turn the shaft.

By the construction here shown a very slight movement can be given to the regulator, and thus the time regulated to a second.

Having thus described my invention, I claim- In a regulator for awatch, the combination of the threaded shaft, and wheel having teeth to engage with the thread on the shaft. and provided with a wrist pin, with the lever which is slotted at one end and provided with an arm and regulating-pins at the other, substantially as shown and described.

In testimony whereof I affix my signature in presence of two witnesses.

CLARENCE M. HOWARD.

\Vitnesses:

JOHN BAXTER, EDWARD D. HOWARD.