US1034489A - Piano-action. - Google Patents

Description

J. B. MURRAY.

PIANO ACTION.

APPLICATION 111,111) xov.22.1911.

1,034,489. Patented Aug. 6,1912.

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UNITED STATES, PATENT OFFICE.

JOHN 3. MURRAY, or EILLWOVOD CITY, PENNSYLVANIA.

PLeNo-Ac'rIoN.

I Specification of Letters iatcnt.

Patented Aug. 6, 1912.

Application filed November 22, 1911. SerialNo. 661,694.;

certain new and useful Improvementsin,

Piano-Actions, of which'the following is-a specification, reference being had to the accompanying drawings. 1 a

My invention relates to new and useful improvements in piano actions and more particularly to the means for securing a bridle strap to the hammer and my ob ect is to provide a simple and efficient means for securing the bridle strap to the butt of the hammer, which means will obviate the many difliculties now experienced in the present means employed.- I

A further object of the invention resides in providing a spring member removably secured to the hammer butt of a pi'a-no action, a portion of which is adapted to engage the bridle strap and secure the same in position on the butt. r

A still further object resides in providing an improvement for securing the opposite end of the bridle strap .to the rod of the jack lever of the action and another .object is to provide a device which, while simple and durable in construction, is inexpenslve to manufacture and very eflicient in operation.

With these and other objects in view, my invention consists in the novel features of construction, combination and arrangement of parts as will be hereinafter more particularly pointed out in the specification and claims.

In the accompanying drawing forming a part of this application Figure 1 is a side elevation of a piano action, as much of the same being shown as is deemed necessary to illustrate the proper application of the improvement thereon; Fig. 2 is a section as seen on line 2-2 of F 1; Fig. 3 is a vertical section as seen on line 33 of Fig. 1, and Fig. 4 is a section through that portion of the rod and the jack lever to which one end of the bridle strap is secured.

In carrying out my invention, I shall refer to the drawing in which similar reference characters designate corresponding parts throughout the several views and in which 1 indicates a hammer, the butt 2 thereof being provided with 'the usual counter-check 3 and -indicates the jack lever having the usual rod 5 mounted thereon.

The usual method ofsecuring a bridle strap in position between these elements is by-ise'cu'ring one end thereofto the rod-.5 While the opposite end ofthe' same is glued or otherwise: applied to: the hammer butt by some adherentmatter and as this method 5 has proved tobe a .poor one, the same embodying-a great many difficulties inthe operation thereof; I provide my improvement which consists in first providing a pin or the like 6 on'the hammerbutt2immediately below the counter checl; 3,-.to which pin is engaged, by 'merely insertin the same thereover, the one end of a bridle strap 7. The side faces of the hammer butt 2 are provided with vertical channels or slots 8, the lower ends of which communicate with a channel 9 whichflextends transversely through said hammer butt and v a wire spring member 10 which is looped a number of times in its length to give the required tension, has the arms thereof disposed in said slots 8 and the free ends of said arms bentto extend within the trans verse channel 9. i

In order to securely retain two arms in their respective slots 8 and the bent free ends thereof in the channel 9, a ring or eye member 11 is encircled about the pair of arms in order to move thereon soas to rest against the hammer butt 2 and securely retain said arms in position and the opposite or looped end of the spring member 10 is bent so as to be disposed against that portion of the butt 2 in which the pin 6 is disposed. This end of the spring member is the effective end thereof and is looped in this portion, as shown at 12, to provide an eye or the like through which the pin 6 is adapted to extend, when said spring is in its effective position, and it will be seen that after the one end of the bridle strap 7 has been properly positioned on the pin 6 said spring may be allowed to effectively engage said strap and detachably retain the same on the pin against the hammer butt. The opposite end of the bridle strap '7 is engaged with the upper end of the rod 5 which is threaded, as shown at 13, said threaded portion being engaged with the nuts 14 and 15, between which is disposed said bridle strap. Thus,

it will be seen that after the strap has been positioned thereon between said nuts the latter may be turned on the threaded portion 13 so as to be brought toward one another thereby securing the bridle strap t0 the rod 5. I

In practice, it will be seen that the spring member 10 may. first be secured to the harm mer'butt by disposing the arms'therofin the slots 8 and the free'ends of the'same' in the channel 9 of said hammer butt, whereupon the ring 11 may be moved on said arms so as to cause thesame to fit t-ightly'within their respective slots." The one end of the bridle strap 7 is then engaged with the pin 6 and the free and effective end of the spring member 10 allowed to engage said bridle strap to detachably retain the same against the hammer butt 2. The bridle strap may then be guided'through the head portion of the counter check and engaged.-with the threaded portion of the rod 5 and locked in position thereon by the nuts 14 and 15, as described above.

From this construction it will be appreciated that the numerous obstacles and difliculties which are experienced in the use of the means now employed for securing the bridle straps on the hammer butt, will be obviated and that, should it for any reason, whatsoever, become necessary to remove the bridle strap or the like, the samemay be very quickly and readily accomplished.

Furthermore, it will be seen that the means in general is one of extremely simple and durable construction, it is inexpensive to Copies of this patent may be obtained for manufacture and is one which is very efiicient and useful in operation.

What I claim is:

1. In apianoaction, the combination with a hammer butt anda bridle strap; of a pin secured to said hammer butt with which said bridle strap is engaged, and a spring member J detachably retaining said bridle strap in'ehgagement with said'Pin against said hammer buttz 1 2. In a piano action, the combination with a hammer butt and-a-bridle-strap; of a pin secured to said :hamI'nerebuttwith which one end of said bridle strap is engaged, and a spring'member remov'ably secured to said hammer butt and-having a portion thereof engaged with 1 said: .bridle strap. to detachably secure the same on said pin and against the-hamme'r-butt.-

3. In a device of the class described, the combination :xwith a hammer butt and a bridle strap,avof a: pin secured to said hammer butt withEwhich: onehfend of said bridle strap is engaged,a=. a :zslpring member, and means to. removably secure the'sameto said hammer butt, said spring'having a portion thereof bentito encircle the pin and contact with said hammer butt, whereby the bridle strap will be detachably secured to the lat- 'In testimony whereofl hereu ntoafiix: my

signature in thevpresence of two witnesses w JOHNaB. MURRAY;

" Witnesses:

MICHAEL SALMEN, 1 FRED -E:-'JONES, S

five cents each, by addressing the.commissioner of Patents, Washington, D. C..- i

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