US1704864A - Sounding mechanism for clocks - Google Patents

Description

March 12, 1929. s. MAZUR ,704,864

SOUNDING MECHANISM FOR CLOCKS v Filed Nov. 1926 Patented Mar. 12, 1929.

UNITED STATES 1,704,864 PATENT orr cr...

SAMUEL MAZUR, or BUFFALO, NEW YORK, nssreNon TO ran SESSIONS Cross: UOM- PANY, or FORESTVILLE, CONNECTICUT, A OORPGRATION'OF CONNECTICUT.

i SOUNDING MECHANISM FORCLOCKS.

Original application filed December 31,1924,

November 1, 1926.

This application is a division of application Serial No. 759,204, filedDecember 31, 1924. i r

In the accompanying drawings Figure l is a fragmentaryelevation, partly in section, of a clock mechanisn'i embodying my improvements. Figure 2 is an end view of the sounding device. Figure 3 is a vertical section taken one line 33, Fig. 1. Figure 4 is a vertical section taken one line ll, Fig. 1.

Similar characters of reference indicate like parts in the several figuresof the drawings.

On a suitable support such as the bottom 10 of the enclosing casing of the clock is arranged a metal chime or bell stand which in the present instance consists of a base 11 secured to the bottom by screws 12 and a standard 13 rising from this base. From the upper part of this standard. projects one or more chime or bell rods of different tones which are adapted to be struck by a hann mer mechanism and thus audibly announce the time. of the day. In order to provide a solid and substantial support for these chime rods the standard is made from a comparatively large mass of metal. However, to permit the chime rods to vibrate more freely when struck a slot or notch 14tis formed on the rear side of the standard between its upper and lower ends so that it opens in a direction opposite to the front side of the standard from which the chime rods project.

This forms a comparatively slender connection between the upper and lower parts of the standard and causes the chime rods to produce a greater volume of tone than otherwise would be the case.

Although the chime rods may be mounted on the chime stand in various ways it is preferable to mount the same in the following manner:

In the upper part of the standard are provided a plurality of mounting openings, one for each chime rod,there being two of the latter in the present instance which are of.

Serial No. 759,204. Eivided and this application filed Serial No. 145,454.

different length and tone. Each of these mounting openings extends through the standard from its front side to its rear side and consists of a rear part 15 which is cylindrical and a front part 16 "which is conical and flares from the cylindrical part forwardly to thefront side of the standard. Each chime rod preferably constructedof. metal which is round in cross section and the same comprises an inner or front body 17, a rear shank l8, and an intermediate neck 19 connecting the body and shank. The body is con'iparatively long and forms the main part of the chime rod. The shank is comparatively short and is secured in the cylindrical. part15 of. the. mounting openingin the staml. i conical form and tapers rearwardly from the body of the rod to the shank thereof. At the rear small end of the neck the same is joined with the front end of the shank by an abrupt shoulder 20.

By thus making the front part 16 of flar ing or trun'ipe" shape the sound of the chime rod is spread and thus increases the volume of the same. By constructing the junction of the reduced. neck of the chime rod with the relatively large shank of the same by an abrupt or square shoulder the vibrating capacity of the rod is increased, resulting in greater resonance of the red when the same is struck by a. hammer- Each of the chime rods is adapted to be struck adjacent to its fixed end by a hammer mechanism having a hammer head 21 of metal and a facing 22 of leather on said head, which facing is adapted to hit the chime rod and thus vibrate the same and cause the rod to sound. Each of these hammer heads is mounted on the outer or lower arm 23 of, a hammer lever, theinner'or upper, arm 24k of which is adapted to-be en inc neck of the chime rod is of 26 which receives a horizontal pivot pin 2-7 and thus forms the axis about which the hammer lever turns. This hammer lever may be secured to its hub in any suitable manner but preferably by placing this lever in a notch 28 in one side of the respective .hub and then securing the lever in this notch either by soldering or closing or pinching the metal of the hub against opposite sides of the hammer so that the latter is held in the hub by friction. The hubs of both hammer levers mounted on the same pivot pin 27 and the latter is mounted on a hanger 29 depending from the lower part of the main frame 30. The movement of the hammer levers in the direction for engaging the facings of the hammer heads with the chime rods is preferably limited by a buffer 31 which normally arrests each hammer lever in a position in which its hammer head is out of contact with the respective chime red, as shown in Fig. 1, but which permits the hammer lever to spring suiliciently to engage its hammer head with the chime rod and thenrebound out of engagement therefrom. This buffer is preferably secured to the lower part of the hanger 29 in position to be engaged by the inner arm of the respective hammer lever. The outer arm of each hammer lever is preferably normally arranged in a horizon tal position or nearly so while the inner arm thereof is bent upwardly into angular form and terminates in the space adjacent to the time mechanism and striking mechanism. The motion for actuating the hammer levers is derived from any suitable source and transmitted to trip arms 32, each of which has a later lly projecting finger 33 engaging with the inner or upper arm 2&- of one of the hammer levers. As the striking mech anism operates the trip arms 32 are moved toward the inner arms of the hammer levers and thereby cause the latter to be turned in the direction for raising the hammers from are preferably the chime rods and when the trip arms clear the hammer levers the latter are returned to the starting position by the returnmovement of the hammer levers the front or outer arms of which descend under t is weight of the hammer heads thereon.

The striking mechanism is of simple, in expensive and durable construction, and the chime rods are so mounted that tones of greater volume are produced.

I claim as my invention:

1. A chiming device for clocks comprising a stand adapted to be mounted at one end on a support and to carry a chime rod on its opposite end and provided between its ends and on the side opposite to the rod, with a transverse slit so that one part of the stand freely overhangs another part thereof;

2. A chiming device for cloc s comprising a stand having a base adapted to be secured to a support, and a standard rising from said base and provided at its upper end with an openi" and on its rear side between its upper and lower ends with a horizontal slot, and a chime rod secured at one end in the opening of said standard and projecting forwardly from the standard.

A chiming device for clocks comprising a stand provided with an opening which flares from its rear end to its front end and a chime rod arranged in said opening and extending with its front part outwardly from the large end of said opening and secured with its rear end to said stand in the small end of said opening.

1-. ii. chiming device for clocks comprising a stand having an opening which has a cylindrical rear part and a conical front part flaring forwardly from said cylindrical part, and a chime rod arrangedin saidopening and extending forwardly therefrom and secured in the cylindrical part thereof.

In testimony whereof I hereby ailixmy signature.

' SAMUEL MAZUB.

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