US154911A - Improvement in music-leaf turners - Google Patents

Description

Patented Sept. 8,1874.

wnNEssEs INVENTUR n ATTORNEYS.

UNITED STATES PATENT OFFICE.

GEORGE IV. ROGERS, OF SOUTH BROOKLYN, NEV YORK, ASSIGNOR TO IDA RAUTENBERG, OF NEW YORK CITY.

IMPROVEMENT IN MUSIC-LEAF TURNERS.

Specification formingpart of Letters Patent No. 154,9ll, dated September 8, 1874; application filed July 11, 1874.

To all whom it may concern l Bc it known that I, GEORGE W. ROGERS, of South Brooklyn, in the county of Kings and State of New York, have invented a new and Improved .Music-Leaf Turner, of which the following is a specication:

My invention consists of a slide for moving the swinging wires for turning over the leaves, the said slide being arranged to run in a race a little below, and partly in front of, the lower arms ot' the leaf-turning wires, and having a little tongue rising a little higher than the arms, that springs behind each arm when it passes the outer end, and swings the arm around as it moves back, and passes the axis of the arln, said slide being worked in one direction by a foot-treadle and cord, and in the other direction by a spring, and the leaf-turning wires being pivoted side by side in a row parallel with the slide-race, so that whichever way they may be turned the front wire will swing a little short of the next at the outer end, whereby when the `tongue passes ott' the front wire to spring behind to swing the wire forward, it will strike against the next wire, and thus be prevented from engaging it. A notched bar or standard is arranged alongside of the foot-treadle, to engage and hold it against the spring at any point.

Figure l is a front elevation of my improved music-turner, with a part sectioned. Fig. 2 is a section on line at' a', and Fig. 3 is a section on line y y. Y

Similar lettersof reference indicate corresponding parts.

A represents the book-rack for holding the music, which may be of any approved kind, and adapted to any instrument. B represents the pivots, and G the arms of the wires for turning the leaves of the music. These pivots are arranged side by side, in a row, a little distance apart, so that each front wire will not extend quite as far as the next behind, as shown at the right hand of Fig. l, in order that the tongue D, for throwing the wires, may engage only one at a time, always taking the one at the front. This tongue is mounted on a sliding block, E, which runs in a race, F, extending along the bottom of the rack from side to side, to carry the tongue along and beyond the ends of the arms to return behind them, and thus swing them around from one side to the other. The slide is connected by a cord, G, with a foot-treadle, for pulling it in the direction for turning thel leaves, and it is also connected with a strong spring, H, (dot-ted,) of rubber or other material, for moving it back, and it has a spring, I, at its front, which yields for letting it come forward when passing over the arms O, and instantly throws it back after passing oif the end of an arm to run behind it. The treadle J ranges along the notched standard I', the notches of which are arranged to hold the slide at any required point until it is required to shift. For example, inFig. l,the second arm is represented as the next one to be turned, and the tongue l) is held just beyond the end ot it, and to the left of the end of the next arm, so that its next movement to the left will only swing the second arm, whereas if it were allowed to swing beyond more than one arm, it would cause more to swing. The treadle is moved into and out ofthe notches by the foot giving it a little swing laterally, and may thus be engaged with any notch, the position of the tongue along the slide being an indicator to the eye of the performer when the treadlc is in position for entering the notch it is desired to.

When all of the arms have been turned to either side, they may be turned back one by one or all together. For turning them all back at once, the tongue is allowed to slide beyond all the arms before being reversed.

Instead of notching the standard I', so as to hold the tongue in a special posit-ion for each arm, it may be held always in advance of the end otthe arm to be turned by one intermediate notch, and then moved over the arm just before or at the time of turning, and held t by the foot until returned to the notch 5 but in order to turn the leaf with the least possible delay at the moment necessary, it is better to have the tongue ready for instantaneous action, as shown in the drawing. The thumbstud K is attached to the block for pulling the tongue forward, to move it backward over the ends of the arms, which may sometimes be required.

sliiftin g block E, sprin g H, foot-treadle J, and cord G, combined and arranged to Work the tongue D, substantially as specified.

3. The notched standard I', combined with the foot-treadle J, cord G, slide E, tongue D, and Wires B C, substantially as specified.

GEORGE W. ROGERS.

Vitnesses A. P. THAYER, T. B. MosHER.

Images