US531803A - Music-leaf turner - Google Patents

Description

(No Model.)

T. MANION.

MUSIC LEAF TURNER.

No. 531,803. Patented Jan. l, 1895.

UNITED STATES PATENT OFFICE.

THOMAS MANION, OF SOHENEOTADY, NEV YORK.

MUSIC-LEAF TURNER.

SPECIFICATION forming part of Letters Patent No. 531,803, dated January 1, 1895.

Application filed July 16, 1894. Serial No. 517,628. (No model.)

To all whom t may concern.-

Be it known that I, THoMAsMANIoN, a citizen of the United States, residing at Schenectady, county of Schenectady, and State of New York, have invented certain new and useful Improvements in Music-Leaf Tnrners, of which the following is a specification.

The invention relates to such improvements and consists ofthe novel construction and combination of parts hereinafter described and subsequently claimed.

Reference may be had to the accompanying drawings, and theletters of reference marked thereon, which form a part of this specification.

Similar letters refer to similar parts in the several figures therein.

Figure l of the drawings is a view in front elevation of my improved leaf-turner, and leaf-supporting rack, with the upper part of the rack broken away. Fig. 2 is a vertical cross-section taken on the broken line 2 2, in Fig. 1. Fig. 3 is a cross-section of one of the rotary spindles, showing in top view the operating key-levers and connections between the levers and spindles. Fig. 4 is a view similar to that in Fig. 3, showing the relative position of the parts when the key-levers have been operated to impart to the spindle a semi-rotary movement. Fig. 5 is a top plan view of the pivotal connection between a spindle and a leaf-supporting arm.

A is a rectangular frame which supports a series of vertical spindles A rotary in suitable bearings in the top of the frame, and the shelf A2 supported by the frame. The spindles project above the top of the frame and severally support the bifurcate arms A3 preferably a pair of wires inserted in the socket-piece A4 which piece is pivotally connected with its supporting spindle by the pivot A5 passing through the ears AJ' and the end of the spindle. The pivot is a screw, and one of the ears is screw-threaded to fit the screw which passes loosely through an aperture in the spindle and other ear contiguous to the head of the screw. By inserting the screw tightly, the friction-joint so formed will maintain the leaf-supporting arms at any angle to which they may be inclined.

B is the music-rack which may be supported by the legs B depending from the rack and secured to the ends of the frame A as by screws 132-. The rack is also provided with a series of horizontally projecting pins Blwhich serve to support the music leaves resting thereon. The upright spring-arm B5- may, when desired, be secured to the rack at its middle part to hold the middle portion of the double leaves against the rack while the last leaf is being turned. I have shown in Fig. l, a number of such leaves L in position on the rack.

Any desired number of leaf-supporting bifurcate arms may be employed. I have shown three arms each inclined at an angle of about forty-tive degrees so that each arm crosses its supported leaf diagonally, thereby insuring the necessary movement of the leaves when the arms are successively swung over to the opposite side to the position indicated by the dotted lines K As the arms are swung to and from the rack, they pass in and out of the spaces between the pins B*- carrying the leaves onto the pins.

As a means for conveniently and quickly swinging the bifurcate arms from one side to the other, I make use of a pair of key-levers (1 O for each spindle, severally pivoted upon the rod @Q having end-supports in the vertical end walls of the rectangular frame. The levers are separated and located on the rod by the washers or thimbles O3 one or moreof which may be connected with the bottom of the frame to give additional support to the rod, as by the block O4-. The outer ends of the levers are each provided with a finger-piece (D5- Each arm-supporting spindle is connected with a pair of operating levers by a chain or series of links D, D D2 and D3 The middle link D is securely fixed to the side of the spindle, as by rivet D" passing through the link and spindle.

By depressing the left hand key, the parts are made to assume the position shown in Fig. 3, which gives the spindle a half-turn and swings the bifurcate arm supported thereby from the position shown in Fig. l, to that indicated by the dotted lines in suoli figure. If the right-hand key is then depressed, the parts are returned to the position shown in IOO Fig. 4, and the bifurcate arm swung back to the position shown by solid lines in Fig. l. I am thus able to easily and quickly swing the leaf-supporting arms from one side to the other and back again by simple and positively operating mechanism.

By inclining the leaf-supporting arms and swinging one above another, any desired number of spindles with bifurcate arms can be ranged in a straight line and successively operated to turn a leaf of music previously inserted therein without interfering, one with another.

It is obvious that the spindles may be rotated or the leaf-snpportin g arms swung back and forth by direct application of the hand.

It is characteristic of my improvement that each leaf-engaging arm is connected to a distinct spindle and that such spindle is combined with a pair of operating levers by means of a chain joining each lever directly to the spindle all of the levers being fulcrnmed on a single horizontal rod. The construction is simple, efficient and not liable to be put out of order.

What I claim as new, and desire to secure by Letters Patent, is-

-ln a musicleaf turner, the combination with a music-rack, of leaf-engaging arms, rotary arm supporting spindles, operatin g -levers two for each spindle, chains having each an intermediate link or part fixed to one side of a spindle and connected by its ends respectively with a pair of levers and a horizontal rod pivotally supporting said levers, all substantially as described whereby the levers of any one of the several pairs may act directly through the links of the chain to partially rotate a spindle and swing a leaf turner in either direction.

In testimony whereof I have hereunto set my hand this 30th day of June, 1894.

T. MANION.

IVitnesses:

GEO. A. Mosrmn, FRANK C. CURTIS.

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