US441328A - Allen - Google Patents

Description

(No Model.)

A. s. RAND. STOP ACTION FOR ORGANS.

NO. 441,328. Patented N0v. Z5, 1890.

UNITED I STATES PATENT OFFICE.

ALLEN S. RAND, OF FORT MADISON, IOWA, ASSIGNOR TO ORREN I. SEARLES, GEORGE F. JACKSON, AND F. M. GUSTIN.

STOP-ACTION FOR ORGANS.

SPECIFICATION forming part of Letters Patent No. 441,328, dated November 25, 1890.

Application filed June 13, 1890. Serial No. 355,292. (No model.)

. To aZZ whom it may concern:

Be it known that I, ALLEN S. RAND, a citizen of the United States, residing at Fort Madison, in the county of Lee and State of Iowa, have invented a new and useful Stop- Action for Organs, of which the following is a specification.

My invention relates to an improvement in stop-actions for organs.

The object of the present invention is to provide a simple, inexpensive, and easily-operated stop that performs the full functions of the ordinary sliding stop, but does not take up the room on the face of the organ, and, further, to provide a stop that requires but little exertion on the part of the performer to operate and that will be more rapid in opening and closing the mute than the sliding steps would be; and it consists, in place of the sliding stop, of a rock-shaft operated by a small handle and carrying an eccentric which works the wirescon'necting with the mute; and it further consists of a novel combination and arrangement of the parts oper-' ating the mute, hereinafter more fully described, illustrated in the accompanying drawings, and specifically pointed outin the claims.

In the accompanying drawings, Figure 1 represents a perspective view of an organ stop and mechanism constructed in accordance with my invention. Fig. 2 is a transverse sectional View.

1 represents a portion of the front frame of an ordinary organ, along the face of which the customary stops are placed.

In place of the sliding tube generally used for operating the mutes and in the aperture in which such sliding tubes Work I place a shaft 2, journaled in the two upright sections 3, which are a portion of the ordinary organframe, and which usually are the supports for said tubes. Shaft 2 is operated by a short handle 4, that appears on the outer face of the organ, where the knobs of the ordinary stops are placed, and within the organ and between said sections 3 a cam or eccentric 5 is mounted on said shaft and is operated thereby. Said handle is to be suitably orna mented to make the usual elaborate finish of the organ, and at its connection with saidshaft has an enlarged head 4*, that is cut out for the customary insertion of the name of the stopnamely, Principal, Diapason, &c.

6 represents the mute of the organ, being situated in the usual place and constructed in the usual manner, and always held securely closed when not opened by mechanism by an ordinary spring-strip 6 To one end or edge of said mute an upright strip or arm 7 is pivoted. Arm '7 is connected by a loose joint to the mute-wire 8, which extends therefrom in a forward direction untilit just clears the rear upright 3, when it is then bent at direct right angles and extends, as at 9, parallel to the said uprights 3 and under the lugs 10, which act as bearings for the portion 9 of wire 8 and keep it steady in its movement. The wire again takes a turn at right angles and extends a short distance, as at 11, toward the face of the organ and at an angle to the plane of the whole wire 8, thereby causing it to set up and off from the base 011 which said wire rests, and it is then bent, as at 12, to pass directly beneath the cam or eccentric 5 on said shaft 2, said eccentric being adapted to work thereon, being regulated in its movement by the stop-pin 13, which is inserted in the base portion aforementioned.

It is thought that the operation of the stop will be apparent from the foregoing description. The short handle is turned to the right by the operator, which causes the eccentric mounted on said shaft, regulated in length of movement by said stop-pin, to press down on the portion of the mute-wire which extends beneath the eccentric, and which is, when the mute is closed, set off from the base 011 which said wire rests, said wire communicating an upward motion to the arm 7, pivoted on the mute, which opens said mute and holds it open until the pressure of the eccentric is relieved from the wire by turning the handle back to its normal position, when the mute flies back and is firmly held in place by the tension of spring 6 The advantages of the rock-shaft stop over the sliding stops are also thought to be apparent. It can be readily seen that a slight movement of the thumb on one of the handles would suffice to open the mute and would take scarcely amoment of time without the hand having to be hardly raised from the keyboard, whereas in the sliding stops the Whole hand has to be raised from the keys and some little exertion required to operate them, thereby causing a loss of time, which is a great factor against smooth and unbroken playing.

Having described my invention and its operation, what I claim, and desire to secure by Letters Patent, is

1. A stop-action for organs, consisting of a rock-shaft, a crank mounted upon and operating said shaft, and an arm mounted on said shaft and adapted to bear against and operate the mute-opening wires or levers, substantially as described.

ALLEN S. RAND.

Witnesses:

THEODORE SALMON, M. W. MITOHEL.

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