US574464A - Door-bell - Google Patents

Description

G. E. TYSON.

(No Model.)

DOOR BELL.

Patented Jaan. 5., 1897.

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.Attorney YH: Nonms PETEPS co. Pnoraumo., w/snmsmm n. cA

UNITED STATES PATENT OFFICE.

GEORGE E. TYSON, OF READING, PENNSYLVANIA.

DOOR-BELL.

SPECIFICATION forming part of Letters Patent N o. 574,464, dated January 5, 1897'. Application filed June l5, 1896. Serial No. 595,603. (No model.)

Be it known that I, GEORGE E. TYSON, a citizen of the United States, residing at Reading, county of Berks, State of Pennsylvania, haveinven ted certain Improvements in Bells, of which the following is a specification.

My invention relates to that class of callbells in which the hammer is operated by a clock-movement; and my object is to improve the releasing mechanism so as to render the operation more easy and-satisfactory and to enable the push or pull to be exerted in any direction whatever with relation to the bell, as may be most convenient for any preferred location of the latter.

Figure l is a rear view of a bell having my improvements applied thereto. Fig. 2 is a cross-sectional view on the line o: a; of Fig. l. Figs. 3 to l0 are separate views of details.

A represents the base-plate of the bell, B the second plate, secured to pillars a a a on the base-plate, and C the bell proper, secured by means of a nut b3 to a shouldered boss l) on the plate B. The clock-movement, located between the plates A and B, comprises the usual elements.

D represents the main arbor, which has an extension d, passing through the boss Z1 and provided with a turn button or bar d2 to wind up the mechanism.

E is the mainspring, having its outer cud e fixed to one of the posts a.

F is the main gear-wheel, f the ratchetwheel, and f3 the pawl with spring f2.

G is the escapement-arbor, in gear with the main arbor D and having an escapementwheel g3, and Il is the escapement-pallet, mounted on an arbor h and carrying the hammer 7L 712.

All of thc above mechanism is of usual and well-known construction, the purpose and effect being to produce a vibratory movement ol the hammer whereby it is adapted to rapidly strilte the bell during the unwinding of the inainspring E.

My invention consists in the improved mechanism provided for locking and releasing the escapement, which I will now particularly describe.

The inner end of the escapement-arbor G projects through the base plate A and is squared to receive a wheel g, which rotates with it. This wheel is provided with notches g in the rim, which are adapted to engage a projection or tooth k2 on a lever K, which is pivoted at k to the plate A, so as to turn in a plane at right angles to the arbor G. This lever K is normally pressed into engagement with the notched wheel g, so as to prevent rotation of the arbor G, by means of a spiral spring s, one end of which enters a pocket a on the base-plate, while the other engages a projection 7.94 on the lever. The latter is also provided With a hook t or other connection for an operatingcord which may be passed through an opening a4 in the base A, so as to pull directly upon the lever to sound the bell. A stop a3 is provided to positively limit the movement of the lever against the pressure ofthe spring.

In order to provide for operating the bell by either a pull or a push exerted in directions substantially parallel with the plane of the arbor G, instead of at right angles thereto, as above described, l employ, in connection with the main lever K, a supplemental lever M, which is capable of operating the main lever by its movement in a plane at right angles to that in which the latter moves. This lever M is pivoted intermediately of its length between fulcru m-supports a5 on the base-plate A and n on an outer fulcrum-plate N, which is bolted at u to the base-plate. The lever M is maintained in proper position upon the baseplate by means of a boss mi", which enters a recess in said plate, and by contact with a boss'u on the latter and with the fulcrumplate N. A spring mfis interposed between they latter plate and the lever to normally depress the outer end, which is formed with a cord connecting extremity on, as shown. The inner end m of the lever is wedge-shaped, as indicated, and is provided with a recess m2 for the reception of a push-rod by means of which this end of the lever is depressed against the tension of the spring m4. When thus depressed, the wedgeshaped extremity m/ pushes against a boss k3 on the main lever K and rocks the latter sufficiently to release the escapement-arbor G, thereby operating the bell. The same effect is obviously produced by a pull upon the cord attached to the opposite end m of the supplemental lever M.

It will thus be seen that by employing two IOC levers arranged to move in planes at right angles to each other I am enabled to operate the bell by either a push or a pull exerted in any direction Whatever.

The construction which I have herein particularly shown and described may evidently be modified without departing from the spirit of the invention.

1. In a bell the Combination with a clockmovement mechanism for operating the balnmer, of a main lever pivoted to swing into or out of engagement with the eseapement of said mechanism, and a supplement-a1 lever pivoted to swing in a plane at right angles to said main lever and adapted to operate the latter substantially as set forth.

2. In a bell having a Glock-movement meehanism for operatin g the hammer substantially as described, the combination of the pivoted lever K, the supplemental pivoted lever M, and the fulornin-plate N and fulerum-support (L5 for said lever M substantially as set forth.

3. In abell having a clock-movement meehanism for operating the hammer substantially as described, the Combination of the pivot-ed lever K having a pulling connection 7J and pushing-lug 7c3, stop a, supplemental lever M having one end engaging said lug, fulerumplate N and retaining-boss a2 for said supplemental lever, and spring s, all substantially as set forth.

In testimony whereof I aiix my signature in presence of two Witnesses.

GEO. E. TYSON.

lVitnesses:

XV. G. STEWART, CAMERON E. STRAUss.

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