US286297A - Music leaf turner - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

0. S. HALL.

MUSIC LEAF TURNER.

Patented Oct. 9, 1883.

WITNESSES l ATTORNEYS.

UNITED STATES PATENT OFFICE.

OLIVER S. HALL, OF MARION, IOWHX.

MUSIC-LEAF TURNER.

SPECIFICATION forming part of Letters Patent No. 286,297, dated October 9, 1883,

Application filed May 21, 18:13. (No model.)

all whom it may concern: do it known that l, OLH'ER S. HALL, of Marion, in the county of Linn and State of (Iowa, have invented certain new and useful Improvements in Music-Leaf Turners; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification, and in which Figure 1 is a front view of my improved music-leaf turner. Fig. 2 is a cross-section on line a a, Fig. 1. Fig. 3 is a similar view on line ;I 7 Fig. 1. Fig. 4. is a longitudinal vertical section, and Figs. 5 and 6 are detail views.

Similar letters of reference indicate corresponding parts in all the figures.

My invention has relation to nuisic-leaf turners; and it consists in the improved construction and combination of parts of the same, as hereinafter more fully described and claimed.

In the accompanying drawings, the letter A indicates a long rectangular casing adapted to be placed on a music-rack, bearing with the lower edge of its front side against the strip usually found in music-racks, which prevents the music sheets or book from sliding off the rack, and with its rear side against the upright frame of the rack, as shown in the drawings, and preferably padded upon its under side with a layer of cloth or other soft fabric, which will prevent the frame or casing from rattling. Spring-cushioned plugs B slide in transveise recesses or bores O in the end pieces of the casing, and serve to hold the same in place in the rack, bearing with their outer ends, provided with rubber cushions D, against the upright portion of the rack, clamping the casing between the front list of the rack and the upright portion of the same.

Inside the casing, at the center of the same, is fastened a small frame, F, the top and bottom of which form vertical bearings F and G, the upper one, F, of which extends through the top of the casing, and in these hearings turns a vertical shaft, H, provided with a pinion, I, at its lower end, above the lower hearing, and around the upper portion of which are a number of cylindrical sleeves, J, oneoutside the other, and all extending up through bearings F at the top of the frame, each of which sleeves is provided at its lower end with a pinion, K, of the same diameter as pinion I, and each pinion turning above the other. Each of these pinions is engaged by one of a series of rack-bars, L, sliding in longitudinal ways M in the inner side of the front of the casing, and the said rack-bars are provided in one end with rods N, gradually decreasing in length, and provided at their ends 0, which are bent outward at a right angle, and project through an inclined series of longitudinal slots, 1?, in the front of the casing, with knobs or handles Q, by which the outward bent ends may be slid forward and back, each rack-bar turning its pinion and sleeve. The sleeves turn upon each other and upon the central shaft in the same manner as the sleeves and shaft upon which the hands'are fastened in a clock, and a corresponding number of flat bars or arms, R, are secured in a horizontal position upon the end of the shaft and upon the ends of the sleeves. These bars increase gradually in length from above, the upper bar being the shortest, and their outer ends are split longitudinally by two slits, cutting ashorter central tongue, S, out, and two longer strips upon each side of the tongue, which strips are curved upward, forming eyes T, through which passes a pintle, U, upon which the lower end of a bifurcated finger, V, is hinged. The lower end, \V, of this finger forms a four-sided prism, the finger extending from one side of the same, and the pintle passing through its axis, and the tongue S bearing against one of the sides of the prism and forming a sprin The bars B, being made of an elastic metal, will enable the finger to be adjusted at will in a vertical or horizontal position.

\Vhen the turner is to be used with a single leaf of music-i. 0., a single leaf which is sepa rate from other leaves, and not connected or bound with any other leaves-an auxiliary bifurcated finger, X, is used, which extends from the center of a rectangular strip or plate, Y, the ends Z of which are bent downward and inward, forming flanges adapted to'clasp under the edges of the upper bar R, the leaf be-' ing placed between the two fingers.

The manner of using the turner is obvious. The music sheet or book is placed upon the rack, the leaves inserted in the bifurcated fingers, and may be turned in a moment by slidating them, said bars being slit at their ends to form a central elastic tongue and two transverse eyes, as described, with the bifurcated clampingfingers having enlarged prismatic lower ends provided with laterally-extending 2o pintles turning in the transverse eyes, as andfor the purpose shown and set forth.

In testimony that I claim the foregoing as my own I have hereunto affixed my signature in presence of two witnesses.

OLIVER STEPHEN WVitnesses: 4 1

LUOIAN P. BARDWELL, REUBEN E. McCLAIN.

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