US939053A - Adjustable piano-pedal connection. - Google Patents

Description

H. MEYER. ADJUSTABLE PIANO PEDAL CONNECTION.

Patented N0v.2, 1909.

APPLICATION FILED MAB.25. 1909.

L T E E H S S T E E H S 2 WITNESSES ATTORNEYS H. MEYER.

ADJUSTABLE PIANO PEDAL CONNECTION.

APPLICATION FILED MAR. 25, 1909.

Patented Nov. 2, 1909.

2 BEETS-SHEET 2.

Q/Y/ege!" ATTORNEYS UNITED STATES Parana GTFFICE.

HERMANN OIE NEW YORK, N. Y.

ADJUSTABLE PIANO-PEDAL CONNECTION.

To all whom it may concern:

Be it known that I, IIERMANN MEYER, a citizen of the United States, and a resident of the city of New York, borough of the Bronx, in the county and State of New York, have invented a new and Improved Adjustable Piano'Pedal Connection, of which the following is a full, clear, and exact description.

The invention relates to pianos and player pianos, and its object is to provide a new and improved adjustable piano pedal connection, arranged to insure accurate working of the hammer rest rail, the damper rail and the muffler, as desired. The connecting bar is adjustably secured to a flat spring, which forms the fulcrum for the connecting bar and is attached to a base secured to the bottom of the piano frame.

A practical embodiment of the invention is represented in the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a plan view of the improvement as applied to any ordinary piano, the bottom portion of the piano frame being shown in section; Fig. 2 is an enlarged sectional side elevation of one of the connections; Fig. 3 is a cross section of the same on the line 3-3 of Fig. 2; Fig. 1 is a side elevation of the spring as applied to a wooden connecting bar; Fig. 5 is a sectional side elevation of the improvement as arranged for player pianos; and Fig. 6 is a transverse section of the same on the line 66 of Fig. 5.

The pedals A, A and A of a piano are fulcrumed, in the usual manner, on the bottom B of the piano frame, and the said pedals are connected by connecting bars C, C and C with the lifting rods D, E and F, of which the lifting rod D is connected, in the usual manner, with the hammer rest rail, the lifting rod E is connected with the damper rail and the lifting rod F is connected with the mufiler.

Each of the connecting bars C, C, C as shown in Figs. 1, 2, 3, 5 and 6, consists of the telescoping members G and H, of which one end of the member G is connected with the corresponding lifting rod D, E or F, and the member H is secured to the member G by a set screw I. Now by the arrangement described, the members G and H, on loosening the set screw I, can be adjusted one relative Specification of Letters Patent.

Application filed March 25, 1909.

Patented Nov. 2, 1909.

Serial No. 485,632.

to the other, so that the connecting bar can be lengthened or shortened to suit different sizes of pianos. As shown in Fig. 4, the connecting bar 0* is in the form of a stick of wood, cut to a. length to suit the size of the piano on which it is to be used.

The pedal member G of each connecting bar C, C, C as shown in Figs. 1, 2 and 3, extends through spaced eyes J of a stirrup J, and through the said eyes J also extends the free end of a spring K, preferably formed of a flat piece of steel bent into U- shape, and having a terminal K in the form of a brace riveted or otherwise secured to a base L and its upright flange L, the brace being fastened by screws or other means to the bottom B of the piano frame, as plainly indicated in Fig. 1. By the arrangement described an exceedingly strong and yet flexible fulcrum for the connecting bar is had.

Set screws N screw in the bottom of the stirrup J against the under side of the free end of the spring K, so as to press the said free end against the under side of the pedal member G, and clamp the stirrup J and the spring K firmly to the pedal member G. By the arrangement described, the spring K forms the fulcrum for the connecting bar 0, C or C to swing 011, when the corresponding pedal A, A or A is pressed in the usual manner. On loosening the set screws N and removing the screws for fastening the base L to the bottom B, it is evi dent that the stirrup J and the spring K can be shifted lengthwise on the connection so as to give more or less throw to the connection to suit existing conditions. After the desired position has been reached, the base L is fastened to the bottom B and the set screws N are screwed up to clamp the parts together, as previously explained.

In the modified form shown in Figs. 5 and 6, the spring K is simply bent into U-shape, the bottom member being riveted or otherwise secured to the base L attached to the bottom of the piano frame. This construction is especially serviceable for use in player pianos, as it brings the connecting bars C, C and C close down to the bottom of the piano frame to leave sufficient room for the bellows and wind chests located above the connecting bars.

From the foregoing, it will be seen that by the arrangement described, the fulcrum of each connection C, C, C can be changed to insure accurate Working of the hammer restrail, the damper rail and the muffler, and by making the connections in telescoping sections, it is evident that the connections can be readily used for different sized pianos.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. A pedal connection, comprising a con necting bar, and a spring fulcrum consist ing of a flat spring bent into an approximate U-shape, and having one end secured to the said connecting bar, a base on which the other end of the said spring is fastened and bracing means between the said base and spring.

2. A pedal connection, comprising a connecting bar and a spring fulcrum, consisting of a Hat spring bent into U-shape and having one end secured to the connecting bar and the other end formed into a brace, and a base having an upright flange on which the said brace is fastened.

3. An adjustable pedal connection for the hammer rest rail, damper rail or mufl'ler of a piano, comprising a support, a connecting bar arranged for connection at one end with the pedal and atthe other end with the lifting bar, a stirrup through which passes the said connecting bar, a spring arranged for attarlnnent to the said support and having its free end engaging the said stirrup, and means for holding the free end of the spring and the said stirrup in position on the said roc.

4:. An adjustable pedal connection for the lifting rod of the hammer rail, damper rail or muffier of a piano, comprising a bar made of telescoping pedal and lifting rod members, of which the pedal member is connected with the pedal and the lifting rod member is connected with the said lifting rod, a stirrup having spaced eyes slidingly engaging the said pedal member, a spring arranged for attachmentto the bottom of the piano frame and extending with its free end through the said stirrup eyes, and set screws screwing in the said stirrup and engaging the said free end of the spring to clamp the stirrup to the pedal member.

5. An adjustable pedal connection for the hammer rail, damper rail or muffler of a piano, comprising a bar made of telescoping pedal and lifting rod members, of which the pedal member is connected with the pedal and the lifting rod member is connected with the lifting bar, a stirrup having spaced. eyes slidingly engaging the said pedal member, a spring having a base for attachment to the bottom of the piano frame, the free end of the spring extending through the stirrup eyes, and set screws screwing in the said stirrup against the free end of the spring.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HERM ANN ME YER.

fitnesses TIIEO G. Hos'rnn, JOHN P. DAVIS.

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