US337657A

US337657A - Door-bell

Info

Publication number: US337657A
Authority: US
Publication date: 1886-03-09
Anticipated expiration: 1903-03-09

Description

(No Model.) v

13. S BLOOMFIELD, J1.

DOOR BELL.

No. 337,657. Patented Mar. 9, 1886.,

UivrrEn STATES PATENT QEEIQE.

ELLIS S. BLOOMFIELD, JR, OF JERSEY CITY, NEW JERSEY.

DOOR- BELL.

EPECIPICATION forming part of Letters Patent No. 337,657, dated March 9. 1886.

Application filed August 5, 1885. Serial No. 173,582. (No model.)

To aZZ whom it may concern:

Be it known that I, ELLIs S. BLOOMFIELD, Jr., a citizen of the United States, and a resident of Jersey City, in the county of Hudson and State of New Jersey, have invented a new and useful Improvement in Gong-Bells, of which the following is a specification.

My invention relatesto an improvement in that class of gong-bells in which the hammer and arm are made rigid, and the elasticity necessary to make the stroke and recover itself, so as to allow the proper sounding of the bell, is given to it by means of an intermediate spring.

The object of my invention is to simplify and cheapen the construction, and afford facilities for working the mechanism in different ways, so that the bell can be used in any position that may be required; and it consists, first, in hinging both the hammer'arm and the hammer-lever on the same pivot or fulcrum and connecting them together by a spring, which spring is attached to the trip on the lever and answers the double purpose of furnishing the hammer with the necessary elasticity to make the stroke properly, and of returning the trip to position after being displaced by the tripping-lever in returning for a repetition of the stroke; second, the introduction of an intermediate lever, to operate upon an arm of the tripping-lever for convenience in operating the bell in other positions.

Figure 1 is a front view of the base-plate and striking mechanism; Fig. 2, a side view in section, showing the intermediate lever and manner of operating it; Fig. 3, a reverse View of Fig. 2; Fig. 4, a front view, also of the baseplate showing position of the parts at the moment of tripping the hammer; Fig. 5, a rear view of the hammer-arm, hammer-lever, and the trip.

Similar letters refer to similar parts throughout the several views.

The hammer-arm'B and the hammer-lever F are both secured by and work upon the same fulcrum b on the base-plate G, Fig. 1, and are joined together by the spring g, which is attached at one end to a spur on the hammer-arm at b, while its other end is secured to the trip E, attached to the hammer-lever E. On the upper side of the hammer-lever is formed a stop, against which a projection on the hammer-arm is held by the spring g, and is thereby made to move in connection with it.

C is the tripping-lever, pivoted to the plate at n, and having an arm. a, extended across an opening in the plate at n, and also into and beyond the lever D. Its position is more clearly shown in Fig. 2.

' D is a lever pivoted to a lug at Z on the plate G, and moves against the arm a of the tripping-lever, forcing it inward.

In Fig. 5 the under side of the hammerlever F is shown, to which the trip E is attached by the pin b, and on which it moves freely. One end of the spring 9 is secured to the trip atf, while the other end is attached to the hammer-armat b and the tension of the spring 9 keeps the trip E against the stop It on the hammer-lever and in position to be caught by the tripping-lever. The short arm h of the hammer-lever comes against the stop ton the plate, Fig. 1, and checks it, when operated by the spring B. An opening, u, in the plate G allows a lever, P, to be passed through from the outside to hit upon the arm 0" of the tripping-lever.

The movement of the tripping-lever against the trip causes the hammer-lever to move outward, while at the same time the hammerarm, being attached to it by the spring, is drawn after it and given an inward motion away from the gong. The moment the hammer-lever escapes it is drawn back by the action of the spring R, carrying the hammer with it until it comes against the stop ton the plate, while the momentum given the hammer carries it on farther and against the gong to make the stroke. The springg yields sufficiently to allow it to do this, but instantly recovers and retains it in its normal position. The trip will be pushed back out of the way by the tripping-lever in returning for the stroke, but is thrown out again by the spring g, ready for another operation. This arrangement of the hammer-arm and the trip connected by the springg does away with a separate spring for each, as they are usually constructed, and is a saving of labor and expense. The lever D, working against the arm of the tripping-lever, affords facilities for operating the mechanism in different positions, as will be seen by reference to the drawings, as at a 2. The combination as above, together with 15 and a", in the direction of the arrows. the tripping-lever for actuating the same and I am aware that gong-hells have been 0011- the intermediate lever, D, pivoted to a lug on strnctecl with a rigid hammer-arm operated the plate and working against; an arm of the 5 by an intermediate sprin I therefore do not tripping-lever, for convenience in operating claim such a combinaLion. broadly; but the bell in certain positions, as shown and (1e 20 What I do claim, and desire to secure by scribed. Letters Patent, is-

1. In a gong-bell, the combination of the ELLIS S. BLOOMFIELD, JR. 10 rigid hammerarm and the hammer lever working upon the same fulcrum and connected Witnesses: by means of the spring g and the trip E, sub- ALBERT FLAGLER, stantially as described, and for the purpose JOSEPH C. PIERSON, Jr. set forth.