US103190A - Improvement in compensating-regulator for watches - Google Patents

Description

W. H. HORTON.

Watch Regulator.

No. 103,190. Patented May 17, 1870.

invento UNITED STATES PATENT OFFICE.

\VILLIAM H. HORTON, OF JERSEY CITY, NE JERSEY.

IMPROVEMENT IN COMPENSATlNG-REGULATOR FOR WATCHES.

Specification forming part of Letters Patent No. 103,190, dated May 17, 1870.

To all whom it may concern:

Be it known that I, WILLIAM H. HoR'roN, of Jersey City, in the county of Hudson and State of New Jersey, have invented a new and useful Improvement in Clocks and atches; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawing, forming part of this specification.

The object of this invention is to provide means for counteracting the effects of varia tions in temperature on clocks and watches; and it consists in connecting an adjustable rod with the regulator-hand of a watch in such a manner that it shall act upon the hair-spring by the unequal expansion and contraction of the rod and regulator-hand, by variations of temperature, and applying the eXtensi0n-rod on the thermostat principle-to clocks, for the regulation thereof, thereby obviating pendulums in clocks and compensating balancewheels in watches, as hereinafter more fully described.

In the accompanying drawing, Figure 1 represents a top view of a portion of a watchmovement, showing my improvement. Fig. 2 is a vertical section of Fig. l on the line 00 w.

Similar letters of reference indicate corresponding parts.

For the purpose of illustrating my invention I show the balance-wheel and hair-spring of a watch with the regulating device connected therewith attached to a plate repre sented on a magnified scale.

A is the plate. B is the balancewheel. O is the hair-spring. Dis the crown-plate, which supports the upper end of the post of the balance-wheel. E is the post. F is the regulator-hand, which works on the post, and is made to operate on the hair-sprin g by means of the fork G (see Fig. 2) on the lever H. The regulator-hand and the lever H play easily on separate shoulders on the post, but are so connected that they move simultaneously thereon.

The regulating-hand F affects the hairspring, and, consequently, the running of the watch for mean time, in the ordinary manner.

To compensate for variations of temperature I apply the thermostat principle or the expansion and contraction of a rod caused by those variations.

I is the expanding and contracting red, by means of which I counteract the eifect of atmospheric changes of temperature on the timepiece. This rod is pivoted to the regulatinghand, as seen at the point J, and is made of a metal which expands unequally with the hand. It is adjustably connected with the lever H, in a slot in that lever, as seen in the drawing.

It will thus be seen that after the watch has been properly regulated the rod will by its expansion or contraction act direetl y upon the lever, and, consequently, vary the position of the fork G upon the hair-sprin g, and thus com pensate for variations of temperature.

The red I is made of brass or other metal which will expand and contract difierently from the regulating-hand, so that the position of the lever H will be affected, to a greater or lesser degree, by any change of temperature.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- The expanding and contracting rod I, of different expansibility from and pivoted to the regulating-hand, combined with the slotted lever H and fork Gr, all relatively arranged as and for the purpose described.

The above specification of my invention signed by me this 11th day of February, 1870.

ILLIAM H. HORTON.

Witnesses:

GEO. W. MABEE, ALEX. F. Ber-Ears.

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