US737180A - Motor for self-playing organs. - Google Patents

Description

No. 737,180. PATENTED AUG. 25, 1903.

G. WARREN.

MOTOR FOR SELF PLAYING ORGANS.. APPLICATION FILED MAY 10. 1901.

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UNITED STATES- Patented August 25, 1902.

PATENT OFFICE.

' CHARLES WAR EN, OF GUELPH, OANADA, AssIcNO ro THE BELL ORGAN AND PIANO OOMPANY, LIMITED,

CORPORATION.

F GUELPI-I, ONTARIO, CANADA, A

MOTOR FOR SELF-PLAYING ORGANS.

SPECIFICATION forming part of Letters Patent No. 737,180, dated August 25, 1903. Application filed May 10,1901. Serial No. 59,674. (No model-J To all whom it may concern:

Be it known that I, CHARLES WARREN, m usical-instrument expert, of the city of Guelph, in the county of Wellington, in the Province 5 of Ontario, Canada, have invented certain new and useful Improvements in Motors for.

Self-Playing Organs, of which the following is a specification.

My invention relates to that class of pneu- Io matic organs which may be .played either.

from the ordinary keyboard or automatically by means of a tracker-board and perforated music-sheet; and the object ofthe invention is to simplify, cheapen, and make the con- I 5 strnction of such instrument more compact,

avoidthe liability of its being affected by cl i-- vmatic changes, and the consequent liabilityically playing in which the valves will not be liable to be influenced'by climatic changes.

In order that the invention may be fully understood, I will describe the same by reference to the accompanying drawings, in

which Figure 1 is a general perspective view of the exterior of my organ, showing the casing broken away to exhibit generally the parts involved in my invention. Fig. 2 is a side elevation attached to a rewinding mechanism. Fig. 3 is an inverted plan of the pneumatics and showing their relation to the key- Fig. 4 is asectional side elevation of an arrangement for operating the exhaustfeeders. x

In carrying out my invention I employ a vacuum-chamber a, extending longitudinally and communicating with the tracker-board b by tubes 0, communicating alternately with diaphragms d in the front and back walls of the vacuum-chamber valves 6, covering openin gs e,connectingthe chamber a with the outer air, being adapted to be operated by the diaphragms din the usual well-known manner.

The vacuum-chamber is provided with pneumatics f on its underside placed end to end in two rows, one row being somewhat in advance of the other, so that the end of a pneumatic inone' row is opposite the ends of two ating mechanism of the ordinary type and are provided with a jumper-rail f above their pivots f to prevent'them being lifted at this'point when operated. by the pneumatics f.

I shall now describe the mechanism of the motor whereby the music-roll is driven, so as tocoact with the tracker-board, and whereby also the saidroll is rewound.

A is the trunk, leading from the exhaustchamber B to above the plate 0, upon the bottom of which the pneumatics 1, 2, and 3 are connected. The trunk A, as will be seen, extends upwardly and communicates with the casing A which is supported at the rear end of the plate C. The partition A, substantially L-shaped in cross section, extends throughthe casing A ,dividing it into two portions and forming one of the seats for the double-acting valves D. Each doubleacting valve D has a valve-rod D, which at'the up per end extends through a nut or buttonD The valve-rods D extend at the top through ahole'E and at the bottom through a hole E, the hole E being designed to admit the air and the hole E communicating with the vacuum and exhaust chamber B. The valve-rod D is supported at the top and bottom in suitable guiding-fingers D It will be seen that there are three pneumatics, corresponding to the number of the valves, and their connections to such valves are as follows: Each pneumatic has secured on the bottom thereof the bars 1, 2, and 3, which are connected by the connecting-bars 1 2 and 3* to the cranks 4, 4: and 4 of the motorspindle 4:. These cranks are of course differently set in relation to each other, as indicated, and the motorspindle 4 is journaled in suitable bearingso.

6, 7, and 8 are levers pivoted on the bearing-brackets 9 and having one end extending underneath the cams 6, 7 and 8. The other ends have spring-fingers 10, which extend under the nuts or buttons D on the valve-rod D, such spring-fingers having a limited vertical play.

I shall now describe the means whereby a continuous regular motion is imparted to the motor-spindle.

When the double-acting valve D is lifted by its cam 7 and the lever 7, the corresponding pneumatic is collapsed and motion is imparted to the crank 43. Upon the cam 7 releasing the lever 7 the corresponding valve D returns to its normal position, and the air is admitted through the opening E. As there are three pneumatics, a constant exhaust or vacuum is acting, for the reason that the other cranks are operated in rotation, thus insuring a complete and continuous revolution. Of course I may dispense with one of the pneumatics and its corresponding mechanism; but I prefer the three to obtain the best results.

The valve N serves to create a vacuum in the motor when the opening which it covers is open or to render the motor inoperative when the valve is closed and the instrument played manually. This valve N is connected by the rod N to an upright N which in turn is connected by the link N to the crank-rod N which extends into a slotted block N connected to the stop N.

It will be understood that j indicates the exhaust-feeder, and j the pneumatic, operated in one direction by spring y and in the other direction by straps v, connected by rods to to the pedal 00, this being a simple and convenient form of operating mechanism.

What I claim as my invention is 1. The combination with the motor pneumatics and spindle and suitable valves for the pneumatics, of the exhaust-chamber and the trunk communicating with the valves of the pneumatics a cross-wall in the trunk having anopening therein, and a suitable valve for closing said opening, a rod connected to the valve and provided with suitable connecting-links at the outside of the trunk, a stop provided with a slotted block and a crank-rod suitably journaled and having one end extending through the slot in the block on the stop and the other end pivotally connected to the link as and for the purpose specified.

2. The combination with the motor-spindle and the driving connection from the same to the music-winding drum and the rewindingroller, of the vacuum-chamber and the crosscasing and a plurality of pneumatics situated beneath such casing, an L-shaped cross-wall extending from end to end of such casing, an opening in the horizontal portion of such cross-wall and an opening directly above the same in the top of the casing communicating with the atmosphere and a single valve with a double seat situated between the opening in the Wall and the opening above it leading to the air, suitable guideways on the bottom Wall of the casing and in the opening in the top wall, the button on the upper end of the rod, thelever pivotally secured and provided with an end spring-finger at one end through which the rod extends and the cam of the motor-spindle resting on and coacting with the outside end of the levers as specified.

CHARLES WARREN.

Witnesses:

B. BOYD, L. TRIMBLE.

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