US897383A - Music-winding roll for perforated music-sheets. - Google Patents

Description

No. 897,383. PATENTED SEPT; 1, 1908.

G. E. MACK. MUSIC WINDING ROLL FOR PERFORATBD MUSIC SHEETS.

APPLIOATION FILED JULY 17, 1905.

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Perforated Music-Sheets,

GEORGE E. MACK, OF DETROIT, MICHIGAN,

DETROIT, MICHIGAN, A CO MUSIC-WINDING ROLL FOR PERFORATED MUSIC-SHEETS.

Application filed July 17', 1905.

To all whom it may concern:

Be it known that I, GEORGE E. MACK, residing at Detroit, in the county of Wayne and State of Michigan, a citizen of the United States, have invented certain new and useful Improvements in Music d inding Rolls for of which the following is a specification, reference being had therein to the accompanying drawings.

The invention relates to mechanism for winding and re-winding music sheets for automatic piano players and similar instruments, and more particularly to the construction of the music winding roll.

The invention consists in certain novel features of construction as hereinafter set forth and claimed.

In the drawings, Figure 1 is a sectional front elevation of the music winding roll; Fig. 2 is a cross section on line a:9c of Fig. 1.

A is the music winding roll which is provided at its opposite ends with the usual flanges B for guiding the music sheet.

C is a drive shaft for the roll which has a drive connection with the latter, preferably comprising the pinion D engaging with a gear wheel E secured to one end of the roll. It is usual in the construction of winding rolls to provide a hook near the center of the roll for engaging with a ring or eye at the end of the perforated music sheet and form ing the means of adjustment for the latter to the roll. Whenever a new sheet of music is placed in the instrument, it is necessary to first engage this hook with the ring, and if the roll is not in the proper position for such engagement, it must be revolved by hand the necessary amount. Thus it is sometimes necessary to revolve it through the greater part of a revolution to effect the engagement of the hook with the ring.

It is one of the objects of the present invention to avoid the necessity of rotating the roll more than a small fraction of a revolution and to this end a plurality of hooks are attached to the roll and are spaced around the same so that one of the hooks is always near the position for engagement.

As shown, the central portion of the roll A is reduced in diameter at F, and surrounding this is a band G of sheet metal.

H are a series of hooks projecting from the band G and preferably formed integral therewith, being struck up as shown. The band G is secured by suitable means such as the Specification of Letters Patent.

' the socket.

Patented Sept. 1, 1908.

Serial No. 270,033.

screws I at its opposite ends which abut against each other. the hooks II are spaced equidistant from each other and thus one of the hooks is always near to a position for engagement with the ring on the music sheet.

Another feature of the invention is the manner of detachably journaling the roll A in the frame or tracker box. For this purpose, socket bearings J are centrally inserted in opposite ends of the roll, the inner end of the socket being tapered to a point.

K is a stationary pin at one end of the frame or tracker box which is slightly smaller than the socket J and is tapered to a point at a slightly sharper angle than that of L is a pin at the opposite end of the frame which is provided. with a similar tapering point, but this pin slidably engages a bushing M inv the side N of the frame.

0 is a spring secured to the frame N and bearing against the outer end of the pin L which is also tapered as at a.

The construction described permits of quickly inserting or removing the roll A, it being merely necessary to draw the pin L outward against the tension of the spring O until it clears the socket member J, after which the roll may be readily drawn out of engagement with the pin K. In addition to forming ameans for quickly attaching or removing the roll, the pin and socket bearings as shown prevent danger of binding of the roll which might otherwise occur, due to the shrinking or swelling of the wooden supporting frame N. Thus, if the bearing were formed by pins projecting from the ends of the roll and engaging parallel bearings, any change in the frame would throw these bearings out of alinement and cause the pins to bind. Such an effect is however impossible with the present construction and the pins L and K may be thrown considerably out of alinement without binding the roll, this being for the reason that there is sufficient clearance between the pins and the sides of the sockets to permit of an angular arrangement. Additional advantages of this construction are, first, that by providing a plurality of hooks which are arranged diametrically opposite to each other on the music winding roll, the latter may be kept in perfect balance, whereas with a single projecting hook the balance is destroyed. Another feature 1s that the socket bearings J are set ASSIGNOR TO FARRAND ORGAN COMPANY, OF

RPORATION OF MICHIGAN.

With this construction,

in the rough block from which the roll A is turned and thus are arranged exactly in the line of the axis; furthermore, as the socket member J projects beyond the end of the roll, it may be used for exactly centering the gear wheel E which is centrally apertured to fit the socket. Thus, this gear Wheel may be quickly attached to the roll 4 and Will run perfectly true.

What I claim as my invention is 1. A Winding roll for music sheets provided with a plurality of music engaging hooks spaced about the circumference thereof.

2. A winding roll for music sheets provided with a plurality of music engaging hooks arranged in circumferential series and spaced equidistant from each other.

3. The combination with a music Winding roll, of a band centrally encircling the same and a plurality of music-engaging hooks se cured to said band.

4. The combination with a music winding roll, of a metallic band encircling said roll, and a plurality of music-engaging hooks struck out from said band.

5. A winding roll for music sheets provided with a plurality of music engaging hooks arranged at different points about the roll and so as to exactly counter-balance each other and preserve the balance of the roll.

In testimony whereof I aflix my signature in presence of two Witnesses.

GEORGE E. MACK.

Vitnesses:

JAMES P. BARRY, EDWARD D. AULT.

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