US259505A - dayies - Google Patents

Description

(No Model.)

W. D. DAVIES.

STRIKING MECHANISM FOR CLOCKS.

No. 259,505. Patented June 13, 1882.

UNITED STATES PAT NT OFFICE.

WALTER D. DAVIES, OF BROOKLYN, NEW YORK, ASSIGNOR OF ONE-HALF T HENRY J. DAVIES, OF SAME PLACE.

STRlKlNG MECHANISM FOR CLOCKS.

SPECIFICATION forming part of Letters Patent No. 259,505, dated June 13, 1882,

Application filed January 31, 1882.

To all whom it may concern Be it known that I, WALTER D. Davms, of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in the Striking Mechanism of Clocks, of which the following is a specifieation.

My invention relates to what is known as liftingmechanism in the striking mechanism of clocks, and particularly to the means generally called turn-back, provided for permitting the hands to be turned back past the hours. In ordinary American striking-clocks the counthook and drop-wire have been carried by a single spindle or arbor, and a second spindle or arbor has frequently been employed for carrying the lift-wire which acts upon the count-hook, the lift-warning, and the liftinghook, which is acted upon by the lift on the central spindle or arbor, and when provision is made for turning back the hands past the hour it is generally done by a special construction of the hook-lifter on the center spindle.

The object of my invention is to provide a 2 substitute for the aforesaid second spindle or arbor and its wires which shall be cheaper and not so easily bent out of operative shape or position, which will take up less room in the clock, and which may be made to serve as 0 the turn-back without other special construction.

To this end the invention consists in certain novel combinations or" parts and details of construction hereinafter particularly described and claimed.

In the accompanying drawings, Figure 1 represents a sectional view of such portions of a clock-movement as are necessary to illustrate my invention, the striking mechanism being .0 at rest. Fig. 2 represents a similar view, showing the striking mechanism during its operation. Fig. 3 represents a plan thereof. Fig. 4 represents a perspective view of thelift-warnin g, the turn-back, and the hoolrlift and ap- 5 purtenances and Fig. 5 represents a plan view of the parts shown in Fig. 4.

Similar letters of reference designate corre sponding parts in all the figures.

A designates the center spindle or arbor which carries the hands, and a designates the hours.

(No model.)

the spindle or arbor B, raises the count-hook b from the count-wheel D. The spindle B is surrounded by the. ordinary spring, 0, which impels the count-hook into engagement with the count-wheel and the drop wire 0 against the cam E. f

F designates the hammer, which is actuated for striking by pins on the wheel G in the usual way.

H designates a bell-crank or elbow lever which forms both a turn-back and a lift-warning, and which is pivoted to one of the plates 0 by a rivet, f. This lever is formed of a single piece of metal and may be cut or stamped from 7 5 sheet metal. It may, if desired, be riveted on I a socket and work on a stud fastened to the plate 0. One arm, g, of the lever H projects into proximity to the hook-lifter a, while the other arm, 9, forms a lift-warning and projects into proximity with a pin upon the wheel I. The arm g is sufliciently flexible to allow it to be bent or deflected laterally, and it is formed with an incline, 9 as best shown in Figs. 4 and 5. When the lever His in its normal po- 8 sition the end of the arm 9 bears against the spindle A, as seen in Fig. 1; but when the hook-lifter a, turns forward it strikes the end of the arm g and swings the lever upward, as seen in Fig. 2. hen the hook-lifter a is turned backward its end bears against the incline and rides over it, deflecting the arm 9 laterally sufficiently to allow it to pass said arm, thus providing for turning back past the When the lever H is swung upward by the hook-lifter a its arm g acts upon the lift-wire d, and through the spindle l3 raises the count-hook l) and drop-wire 0. At the same time the arm 9 comes in contact with the pin 8 on the wheel I, and forms a lift-warnin g to hold the striking mechanism until the hook-lifter a with the arms I) c d, of the lever H, pivoted to releases the arm g, whereupon the lift-warning one of the plates of the frame and having the 15 g releases the wheel I and the clock strikes. arms g g, the former of which is flexible lat- VVhat I claim as my invention, and desire erally and the latter of which is adapted to act 5 to secure by Letters Patent, is upon the arm (1 and to engage with the pin 8 1. The lever H, having the two arms g g, in to serve as a lift-warning, and the hook-lifter a combination with the hook-lifter a for acting for acting upon the arm g, substantially as 20 upon the arm 9 and. the spindle 13, provided herein described.

with arms I) c d on the latter of which the 1o arm g of the said lever H acts, substantially WALTER DAVIES as herein described. Witnesses:

2. The combination, with the wheel I, pro- JOHN BLACKWOOD,

vided with the pin 8, and the spindle B, provided W. CHEVEIZER.

Images