US245863A

US245863A - Piston-valve for musical instruments

Info

Publication number: US245863A
Authority: US
Publication date: 1881-08-16
Anticipated expiration: 1898-08-16

Description

" (ModeL) -H. RENY.

PISTON VALVE EOE MUSICAL INSTRUMENTS. No. 245,863. Patented Aug. 16,1881.

lzy/q ATTORNEYS.

UNIT D STATES PATENT OFFICEO HENRY RENY, OF BIDDEFORD, MAINE.

PISTON-VALVE FOR MUSICAL INSTRUMENTS.

SPECIFICATION forming part of Letters Patent No. 245,863, dated August 16, 1881.

Application filed June 4, 1881.

To all whom t'tmay concern Be it known that I, HENRY RENY, of Biddeford, in the county ofYork and State of Maine, have invented certain useful Improvements in Valves for Musical Instruments, of which the following is a specification.

The object of my invention is to provide a new and improved valve for musical instruments, such as trumpets, cornets, &c., which has a smaller stroke than the similar valves in use heretofore, and is thus much more convenient for the musician or performer.

The invention consists in a valve for musical wind-instruments, which valve has its piston constructed with oblongor flat transverse apertures in place of the circular apertures, as made heretofore, the apertures in the cylinders or piston-tubes and the cross-sections of the connecting-pipes being the same as the apertures of the piston.

In the accompanying drawings, Figure lis a longitudinal elevation of a cornet provided with my improved valves. Fig. 2 is a longitudinal elevation of the valve casing or chamber. Fig. 3 is a longitudinal sectional elevation of the same, showing the valve-piston raised. Fig. 4is a longitudinal sectional elevation of the same, showing the valve-piston depressed. Fig. 5 is a cross-sectional elevation of the same on the linear as, Fig. 3. Fig. 6 is a cross-sectional elevation of the same on the line y y, Fig. 4; and Fig. 7 is a cross-sectional elevation of the same on the line .2 2, Fig. 4.

Similar letters of reference indicate corresponding parts.

The valve-piston A is contained in the valvechamber B, and is pressed upward by a spiral spring, 0, surrounding the piston-rod I), provided with an end or finger plate, E. This valve-piston is provided with transverse and diagonal perforations or apertures F and G and H, which establish connections between the pipes ortubes connecting the several valvechambers B, which are provided with apertures J, K, and L, over which the ends of these connecting-pipes fit. As shown in Figs. 2, 3, and 5, the apertures J of the valve-chamber B are connected by the perforation or opening H, and the other apertures of the valve-chamber are closed; but if the piston is depressed, as shown in Figs. 4, 6, and 7, the apertures L and one of the apertures J are connected by the perforation F, and the otheraperture J and the aperture K are connected by the per- (Modeh) fora-tion G. The wind thus passes through the instrument in a different manner, and a change of the tone is effected; but in order to .or corresponding aperture, and as this tube and apertures are of considerable diameter, especially in large instruments, it strains the fingers of the performer very much. If the same results could be obtained with a smaller stroke ofthe piston, the performer or musician would be relieved considerably. For this purpose I do not construct the apertures, perforations. and connecting-pipes of the valvechamber with a circular cross section, as has been customary heretofore; but I make them oblongthat is to say, the width is increased and the height is decreased; but the area of cross-section is the same as that of the circular aperture or pipes; but the valves can thus be operated with a much smaller stroke, and the desired object is attained.

The tubes can be made in the ordinary manner, but must be flattened, so as to tit over the apertures in the valve-chambers.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- 1. In a valve for musical instruments, the valve pistons constructed, substantially as herein shown and described, with oblong apertures, as and for the purpose setforth.

2. In a valve for musical instruments, the combination, with the valve-casing B, provided with oblong apertures, ot' the valve-piston A, provided with oblong perforations, substantially as herein shown and described, and for the purpose set forth.

3. In a musical instrument, the combination, with the valve-casiug B, provided with oblong apertures, of the valve-pistons A, with oblong perforations, and of the connecting-tubes M, which are oblong in cross-section, substantially as herein shown and described, and for the purpose set forth.

HENRY RENY.

Witnesses:

JOSEPH CARTIER, P. E. DU'FRESNE, EDWIN STONE.