W. BOUS SET Escapement for , No. 217,326. Patented July 8, 1879.

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N. PaTERS, Photo-LETHoGRAPHER, washiNGTON, d. c. UNITED STATES PATENT OFFICE.

VICTORIEN BOUSSET, OF MOREZ-DU-TURA, FRANCE. IMPROVEMENT IN ESCAPEMENTS FOR WATCHES.

Specification forming part of Letters Patent No. 217,326, dated July 8, 1879; application filed September 28, 1878.

Tio all chon it may concern: dinary English escapements, and be construct Be it known that I, VICTORIEN BOUSSET, ed S0 that each of the anchor con of Morez-du-Jura, in the Department of Jura, forms to a half-tooth of the escapement-wheel, France, have invented a new and useful Im or, in other words, two impulses are given to provement in Escapements for Watches and the anchor by each movement of said wheel, other -Pieces, of which the following is a whereby the latter between each of its pro description, reference being had to the accom gressive actions presents well-marked periods panying drawings, forming part of this speci of rest. The arbor of this escapement-wheel fication. C projects beyond the dial and carries the sec My invention especially relates to dead-beat onds-hand, which advances each by a escapements organized to beat , and is jerk or beat one-sixtieth part of an entire rev applicable not only to watches, but to other olution. time-pieces employing a balance or hair It will be understood, then, that without and balance-wheel. materially adding to the usual mechanism of The invention consists in an arrangement of Watches or , I obtain a veritable chro the balance-spring upon a separate arbor to nometer action, marking dead seconds as per that which carries the balance-wheel, said sep fectly as if such indication were furnished by arate arbor being provided with a toothed a separate and more or less complicated mech wheel arranged to with a pinion fast on anism. the balance-wheel, that is thus rapidly moved The arbor b, which carries the balance-spring alternately in opposite directions by the coil B and the pin-disk D of the escapement, also ing and uncoiling of the balance-spring, and carries a toothed wheel, E, which has a vibra So far as its courses of motion are concerned tory motion in conformity with the action of is analogous to the ordinary balance. This ar. said spring. This wheel Egea's with a pin rangement has the effect of materially reduc ion, G, fast on the staff c of the balance-wheel ing the coiling and uncoiling movements of H, and so transmits an accelerated vibratory the balance-spring, so that the escapement motion to the fly or . wheel, which is commanded by an anchor or The invention is not restricted to any pal'. other pallet-carrying device, marks seconds ticular arrangement of the alnchor or pallet instead of the fifth or other fractional portions carrying escapement-lever relatively to the es of seconds, as in ordinary Watches, and I thus capement-wheel, nor to ally particular coll obtain direct from the escape-wheel arbor a struction of the pallets of the anchor, although seconds indication, and dispense with the gear. it is preferred to incline them in a reverse di ing heretofore necessary in order to cause a rection to those of an ordinary ancho'. Neither dial-hand to beat seconds. is the invention restricted to any particulal' In the accompanying drawings, Figure 1 arrangement of the bridges d, e,f(1, h, and 1'epresents a face view of a having my relatively to the main plate I for support of invention applied; Fig. 2, an interior face the -barrel J, and various wheels view, upon an enlarged scale, of the works of and pinions, including those by which motion the watch having the invention applied in con is communicated from the mainspring-barrel nection with a lever-escapement; and Fig. 3, a to the escapement-wheel, which wheels and like view, in part, to Fig. 2, showing the in pinions, as here represented, are indicated by vention applied in connection with an anchor the letters k, l, m, n, 0, and I", a remontoi', if escapement. desired, being used above the bridges when In said drawings, A is the escapement-wheel, the latter do not project above the main plate. which has thirty (30) teeth. B is the balance In the arrangement represented in the dra W spring, and C is the anchor or lever carrying ings, the large intermediate wheel, m, is eccen the pallets, which engage with the escapement tric to the center of the watch, in order that wheel, and connect the latter by a pin-disk, D, the escapement-wheel and the seconds-land with the balance-spring. Said alnchor or pal attached to its spindle may be in the center let-carrying lever may be like that of the or thereof; but said intermediate wheel may be

2 212,326 in the center of the watch, and in such case The invention, however, is not restricted to the seconds-hand may be arranged to move any particular system of gearing pertaining to over a separate small dial in or on the lower the general movement. part of the large dial and in front of the hour Having now explained the nature and ob WI. ject of my invention, and the mechanism by As hereinbefore observed, the several parts which this object is attained, I claim of the escapement may be supported by a plate The combination, in a watch having a dead and bridges, both when the invention is ap- beatescapement, of an escape-wheel with thirty plied to watches and to clocks or chronom- teeth and an arbor projecting in front of the eters, and in the application of the invention to watch-face to carry a seconds-hand, a pallet clocks or chronometers it is only necessary to lever connecting said escape-wheel with a staff make the escapement-wheel, the wheel at carrying a balance-spring and a toothed wheel, tached to the balance-spring, the anchor, and and an arbor carrying a balance-wheel and a the balance-wheel of larger dimensions than toothed wheel engaging with said toothed in the case of a watch. In clocks, however, wheel on the balance-spring staff, said toothed the escapement may be put in place above the wheels being so proportioned that the balance general movement and fitted into a groove in wheel arbor will oscillate much more rapidly the top of the plates of the latter in such man- than the balance-spring staff, which, through ner that the pinion on the escapement-wheel a suitable pin, causes the escape-lever and es with the center-pinion, which in its turn cape-wheel to beat seconds when the watch is gears in the manner common to various kinds properly regulated, substantially as set forth. of time-pieces. In other words, the great in- V. BOUSSET. L. s. termediate wheel may gear with a pinion hav Witnesses: ing no large wheel on its arbor, which, pass EMILE BOLLE, ing through the dial, carries the seconds-hand. EUG i.NE GRAs.