US367521A

US367521A - Joseph heeebtjegee

Info

Publication number: US367521A
Authority: US
Publication date: 1887-08-02
Anticipated expiration: 1904-08-02

Description

(No Model.) I

J. HERB-BURGER.

DAMPER FOR UPRIGHT PIANQS.

No. 367,521. Patented Aug. 2, 1887.

INVENTEIR WITNES 5E5 QMLWVM N. PETERS. Phuln-Lilhugmpher. Washin ton, D. c.

usual.

UNITED STATES JOSEPH I-IERRBURGER,

PATENT OFFICE.

OF PARIS, FRANCE.

DAMPER FOR UPRIGHT PIANOS.

SPECIFICATION fcrmingpart of Letters Patent No. 367,521, dated August 2, 1887.

Application filed June 7, 1887.

To aZZ whom, it may concern:

Be it known that I, JOSEPH HERRBURGER, of Paris, France, but temporarily a resident of the city of New York, county and State of New York, have invented a new and Improved Damper for Upright Pianos, of which the following specificationis a full, clear, and exact description.

This invention relates to an improvement upon Letters Patent No. 350,625, granted to me October 12,1886. In that patent I have shown the damper-head to be connected to the wire-earryi11g stud by means of an intermediate block. I now dispense entirely with the block; and in order to permit the headto be set at any desired angle to the wire I make the stud circular in cross-section,instead of square, thus permitting the angle to be changed by a slight turning of the stud.

The invention consists in the features of improvement, more fully pointed out in the claim.

In the accompanying drawings, Figure 1 is a side View of inyimproved damper. Fig. 2 is a longitudinal central section thereof. Fig. 3

is a top view thereof, and Fig. i a detail side View of the stud.

The letter a represents the damper-lever at tached to hammer-rail by flange b,pivoted at c, the lever carrying the damper-wire d, all as The damper proper consists of two Serial No. 240.515. (No model.)

parts, a cushioned wooded head, 0, which has a reduced end, 6, and of a screw-threaded metal pin or stud,f, which is received by a correspondingly-threaded mortise of the re- 5 duced end 6. The upper or free end of the stud f is provided with a transverse perforation to receive the end of the wire d. This wire is held in place byaclamp-screw, 9, that passes into stud f, as shown. The stud f 0 should be circular in cross-section. In order to incline the head to the string 72 Fig. 3, it is simply necessary to slightly turn the stud in its screw-threaded socket. The threads of the stud should be finely cut, so that a slight turn 5 will not noticeably raise or lower the damper; but, if necessary, the wire (I may be slightly bent tocompensate for the changed position of the damper. By this construction I dispense entirely with an intermediate block and 50 produce an easily-adjustabledamper.

I claim as my invention- The combination of cushioned damperhead 6, with the round screw-threaded stud f, received Within a screw-threaded mortise of said 55 head and provided with a transverse perforation, and with the set-screw g, substantially as specified.

JOSEPH HERRBURGER.

\Vitnesses:

F. v. BRIEsEN,

W. PARTINGTON.