US295670A - Edwin buthvin - Google Patents

Description

E. R. DEER. PIANO HAMMER.

(ModeL) Patented Mar. 25

INVENTOR AttOfneg J block, which carries UNITED STATES EDWIN RUTHVIN PIANO-H Application filed May 19, 1883. (Model.)

550 (ill whom, it may concern.-

Be it known that I, EDWIN R. OBER, a citizen of the United States, residing at Waterbury, in the county of Washington and State of Vermont, have invented a new and useful Piano-Hammer, of which the following is a specification, reference companying drawings.

This invention relates to hammers for vibeing had to the ac brating piano-strings, to vibrate the same and device possessing superior advantages in point of simplicity, inexpensiveness, durability, and general efficiency.

In the drawings, Figure 1 is a perspective view of one of my improved piano-stringhammers. Fig. 2 is a vertical sectional view of the same. Fig. 3 is a detail perspective view of the parts separated. Fig. 4 is a perspective view, illustrating a modification.

Referring to the drawings, A designates the the hammer proper, and is provided with the usual operating-arm B. T A is secured a forked piece, 0, between the sides of which a circular hammer-disk, D, is arranged, as hereinafter specified. The piece 0 comprises a connecting-piece, E, from which projects a screw, F, by which it is secured to the block A, and two side plates, G G, at the end of which are formed disks H, having conical inner surfaces, I, in which are formed central perforations, J, one of which perforations is screw-threaded, as shown.

of wood, and a main striking surface or periphery, M, of felt or other The hub L is provided with a central perforation, N, that forms a bearing for the disk, and has conical recesses O b placed between the surfaces I I and the bottoms of the recesses. A transverse pin or screw, Q, is inserted through the perforations J J and N, and on this screw the disk is adapted to turn.

The operation and advantages of my inven- OBER, OF WVATERBURY,

PATENT @FFICE.

VERMONT.

AMMER.

tion will be readily understood and appreciated.

rable, while the can, however, be readily removed the bearing-screw for substituthat the hammer strike the strings diagonally, it is only necessary to turn the forked piece that carries the hammer, its screw-connection with the block admitting of this movement,

' the string as full as I am aware that piano-hammers have heretofore been formed circular and secured benot broadly clalm this construction and arrangement of

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