US363245A - Organ - Google Patents

Description

(No Model.) .2 Sheets-Sheet 1.

G B KEL LY ORGAN. No. 363,245. Patented May 17, 1887.

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No. 363,245. Patented May 17, 1887.

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ter, which closes the reed-chambers.

UNITED STATES PATENT OFFICE.

GEORGE B. KELLY, OF BOSTON, MASSACHUSETTS;

ORGAN.

SPECIFICATION forming part of Letters Patent No. 363,245, dated May 17,1887.

Application tiled June 36, 1885. Serial No. 169,802. (No model.)

To all whom it may concern:

Be it known that I,'GEOEG.E B. KELLY, a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Organs; and I do hereby declare that the same are fully described in the following specification, and villustrated in the accompanying drawings.

The object of this invention .is to facilitate connecting and disconnecting the levers and rods by which the pallets'are worked,y and to provide a hinged and spring-pressed shutter to cover and close a series of reed-grooves.

My invention consists in certain novel features herein described, and particularly referred to in the appended claims.

In the drawings, Figure l isa vertical section of the instrument in a plane parallel with the keys. Fig. 2 is a-detail of the bottom of the wind-chest. Fig. 3 illustrates the connection of the wire and lever. Fig. 4 is a perspective and sectional view of the spring-shut. Figs. 5 and 6 are enlarged longitudinal and transverse vertical sections, respectively, of parts of the instrument. f

A is the wind-chest; B, the leather lining; C, the-collars on the vertical wires D, and E the pallets.

In the detail view, Fig. 2, the two collars are shown adjustable by a screw-thread formed on the wire, and the lower collar occupies a recess in the bottom board of the wind-chest.

rlhe supplementary wind-chest G contains the pneumatic bellows H, shown in two tiers, oneoverlapping the other in lorder to permit the desired breadth to each. Those of the highest series are mounted on abase-piece, J, of such thickness as to raise them outof contact with the lower series. There is an airpassage, K, for each' bellows, with an opening, L, into the wind-chest and one, M, to the external air. The pull-down wire N passes through these openings, and has above the former one a valve, O, and below the latter one a valve, l?, normally closed by the spring Q. Now, when a note is struck,y depressing the lever It, the wire N closes the valve O and opens the valve P, allowing the compressed air within the bellows and the passage K to mingle with the external air, whereupon the excess of pressure within the wind-chest collapses the bellows and pulls down the pallet S, connected by the strap Twith the bellows top. When the players finger is re moved from the key, the spring Q, closes the valve P and opens the valve O, and the compressed air enters the bellows, permitting the usual spring, U, to close the pallet. I make no present claim to this pneumatic action.

I have provided a simple means of connecting and disconnecting thev pull-down Wires and their levers, as shown in Figs. l and 3. I simply saw a longitudinal slot, V, in the end of the lever B to receive the Wire N sidewise,

and I form a similar transverse slot, Y, in one edge of the button Z, pivoted on said lever nearits end, so as to engage with the wire when in place and hold it there. The wire may be detached by swinging back the hook or button Z, when the wire may be slipped sidewise from the slot V without disturbing the adjustment of its terminal nut.

To facilitate removal of the reeds in turning, and to close the ends of their grooves securely,I cover said ends with a hinged shutter, a, having a soft-leather face to insure a close iit, and made preferably of a length' suflicient to embrace the reeds of an octave, so that all may be opened or closedsimultaneously and the necessity of a great number of hinges and catches avoided. I furnish this shutter with a spring, b, adapted to hold it closely shut, and I have so arranged the parts that the spring also serves to hold the shutter open, which is very convenient in inserting or removing the reeds. The form shown in Figs. 1 and 4t is a wire torsion'spring having one end driven into the sound-board c, while its other end is a curved arm extending around the opened shutter, with its curved tip bearing on the back of `the shutter when closed.

The curved form of the arm of the spring allows the shutterto swing on its hinge to a point where the tip of the spring will hold the shutter open without other aid.

1. The combination of the longitudinally- IOO slotted leverR and the hooked or transvelrsohT` slotted button Z,pivoted thereon,With the vertietl wires N, adapted to engage in said slots, substantially as set forth.

2. rlhe sound-board grooved to receive the reeds, in combination with zt hinged shutter arranged to cover the ends of said grooves, and with :t spring formed to vhold said shutter opened when desired and closed :tt othei` times, substantially as set forth. 1o

In testimony whereof I. hereto affix my signature in presence of two witnesses.

G EO. B. KELLY. Witnesses:

A. H. SPENCER, GEoRGF, S. LITTLEFIELD.

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