US629370A - Beat-adjuster for pendulums. - Google Patents

Description

No. 629,370. Patented July 25, I899. H. D. KEELER.

BEAT ADJUSTER FOR PENDULUMS.

(Application filed Apr. 25, 1898.) 4 N o M 0 d e l UNITED STATES HARRY D. KEELER,

PATENT OFFICE.

OF MARION, OHIO.

BEAT-ADJUSTER FOR PENDULUMS.

SPECIFICATION forming part of Letters Patent No. 629,370, dated July 25, 1899.

Application filed April 25, 1898.

T0 at whom it may concern:

Be it known that I, HARRY D. KEELER,a citizen of the United States,residing at Marion, in the county of Marion and State of Ohio, have invented certain new and useful Improvements in Adjustable Pendulums for Clocks, of which the following is a specification.

My invention relates to adjustable pendulums for clocks, and has for one of its objects to provide a pendulum which can quickly, easily, and simply be adjusted when the clockcase is not plumb.

Another object of my invention is to provide a means of adjusting the pendulum which is at once simple, strong, easily used, and applicable to any clock.

These objects I accomplish in the manner and by the means hereinafterfully described in detail, and particularly pointed out in the claims, reference being had to the accom pan ying drawings, in which like reference-letters indicate like parts in all the figures.

I Figure 1 is a front elevation of my invention on a clock with face removed. Fig. 2 is a top plan view of myinvention. Fig. 3 is a detail View of spring and arm. Fig. i.- is a detail view of plate and arm.

In the drawings accompanying this specification, A represents the clock-case; B, the front of clock, face removed; 0, the escapement-wheel; D, the escapement-lever; E, the verge -rod; F, the pendulum -rod, which is hung in the usual manner bya flat spring at its upper end, and G the clock-frame.

My invention consists of a plate H, in which a slot at is cut horizontally for the arbor 19, carrying the hands of the clock, to move. From the top of the plate H an arm 0, made integral therewith or secured thereto, extends upward and is pivotally mounted on a collar c, rising from the frame G, around the spindle d of the escapement-wheel 0, between said escapement-wheel O and the clock-frame G. The arm 0 extends above the clock-frame G and is then bent backward at right angles and extends to midway the front and back of the clock-frame G, where the end of said arm 0 is bent upward. Pivoted at the back of the clock-frame G on a collar 0 rising from the frame G around the end of the escapementwheel spindle d, is an arm e, which rises above the clock-frame G and is then bent Serial No. 678,786, (No model.)

forward at right angles toward said arm 0, to which it is secured above the center of the top of the clock-frame G, or the arm 0 may be bent upward over the center of the clockframeG and then carried back along such bent-up portion and then to the back of the clock-frame G, where it is bent down and pivotally mounted on a collar 0 rising from the frame G, around the escapement-wheel spindle cl. A spring I has one end securely attached to the back of the clock-frame G, above which it rises, and is bent forward and the other end provided with saw-teeth and engaging the back of the up ward-bent portion of the arm 0. A loop .I is soldered to said spring I and has an armf projecting through the clock-face near the top and provided with a thumb-piece g. At the center of the plate H, at the bottom, is a split post h, in which the flat spring at the upper end of the pend ulum-rod F is placed. To the plate H, above the slot a on the left, one end of an arm K is secured, said arm K projecting upward to the left, having the escapement-lever D pivotally secured on its otherend. To the plate I-I, above the slot at on the right, is secured a steel spring L, which prevents the verge-rod E from swinging outward.

The operation of myinvention is as follows: If the clock-case is for any reason out of plumb, the thumb-piece g is pressed, removing the saw-teeth of the spring I from cont-act with the arm 0. The pendulum M, being hung from the center of the plate II at the bottom, and the plate H suspended by the arm 0 from the collar 0, surrounding the escapementwheel spindle (Z, will adj ust itself as soon as the spring I is released and carry the arm K and escapement-leverD with it in proper relative position.

Having thus described my invention,what I claim as new, and wish to secure by Letters Patent, is

1. In a pend ulu m-clock,a forked arm astride the top of the clock frame and pivotally mounted on collars rising from clock'frame around the escapementwvheel spindle, said arm having an upright projection from the centerof the crown of the fork, an oval plate made integral-with one end of said arm and provided with a horizontal curved slot, adapted to receive the arbor carrying the hands of the clock, and a split post near its lower part adapted to receive the flat spring at the upper end of the pendulum-rod, a spring secured to the back of the clock'frame and provided at one end with saw-teeth adapted to engage said upright projection of said forked arm, an arm secured to the upper part of said plate and carrying the escapement-lever and a spring secured to the upper part of said plate, said spring adapted to prevent the verge-rod from swinging outward, substantially as shown and described.

In a pendulunnclock provided with a plate pivot-ally mounted on a collar rising from the clock-frame around the escapementwheel spindle, said plate carrying the arm on which the escapement-lever is mounted and having the pendulum suspended from it, a spring secured at one end to said clock-frame and provided with saw-teeth adapted to engage and hold said plate, substantially as shown and described.

In a pendulum-clock provided with a plate pivotally mounted on a collar rising from the clock-frame around the eseapementwheel spindle, said plate carrying the arm on which the escapement-levcr is mounted and having the pendulum suspended from it, a spring secu red at one end to said clock-frame and provided with saw-teeth adapted to en gage and hold said plate, and means for operating the same, substantially as shown and described.

I. In a pendulum-clock provided with a plate pivotally mounted on a collar rising from the clock-frame around the escapementwheel spindle, said plate carrying the arm on which the escapement-lever is mounted and having the pendulum suspended from it, a spring secured at one end to said clock-frame and provided with saw-teeth adapted to engage and hold said plate, a loop attached to said spring, said loop provided with an arm having a thumb-piece on its end, adapted to project through the clock-face and to control said spring, substantially as shown and described.

In testimony whereof I hereto aifix my signature in the presence of two witnesses.

E. T. BOYD, .T. B. VIRDEN.

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