US1236430A - Music-roll. - Google Patents

Description

w. E. HASKELL.

MUSIC ROLL.

APPLICATION FILED AUG-2% 1916.

1,2.36A3U Patented Aug. 14, 1917.

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ENTTED ETATES PATENT @FFTQE.

WILLIAM E. HASKELL, OF BRATTLEBORO, VERMONT, ASSIGNOR TO ESTEY ORGAN COM- PANY, OF BRATTLEBORO, VERMONT, A CORPORATION OF VERMONT.

MUSIC-ROLL.

, Specification of Letters Patent.

Patented Aug. ML, 1917.

Application filed August 29, 1916. Serial No. 117,422.

To all whom it may concern:

Be it known that I, WILLIAM E. HASKELL, of Brattleboro, in the county of Windham and State of Vermont, have invented certain new and useful Improvements in Music- Rolls, of which the following is a specification.

Perforated paper music sheets such as are used in automatically played musical instru ments expand and contract due to variations in the moisture of the atmosphere; and in order that the sheet may wind and unwind uniformly upon the music roll, it has heretofore been proposed to make one or both heads or end flanges of the music roll yielding so as to compensate for the shrinkage or expansion of the music sheet. The present invention consists in improvements upon such music rolls with yielding end flanges, and is illustrated in the accompanying drawings, wherein- Figure 1, is a front view of the improved music roll. Fig. 2, is a View of one end of the roll. Fig. 3, is a longitudinal section of one end of the roll in the plane indicated by the line 3-3 in Fig. 2. Fig. 4c, is a cross section in the plane indicated by the line 4-4 in Fig. 3. Fig. 5, is a detail of a resilient spring retaining ring employed.

The music roll comprises a core A, upon which the 'music sheet B, is wound; two heads or end flanges C, D; and pins E and F, fixed to the core by means of which the roll may be rotatively mounted.

The head C, has an inwardly projecting elongated centrally bored boss G, which extends into a chamber H, in the core A, and which slides upon the pin E. Also the head C, has an outwardly extending sleeve I, with an elongated socket J, of greater diameter than the pin E. This socket extends inwardly into the boss G, so as to form an elongated chamber for the reception of a coiled spring K, surrounding the pin E. The spring is long enough so that its tension is not seriously altered throughout the maximum width variation of the music sheet.

The spring K, presses inwardly upon the head 0, and outwardly against a retaining abutment carried by the pin E. This abutment consists of a resilient split retaining ring L, which is sprung into a holding peripheral groove M, in the pin E. The sleeve I, and the socket J, terminate short of the outer and of the pin IE, and the groove M,

and the ring L, are beyond the outer end of the said sleeve and socket when occupying the normal innermost position shown in Fig. 3, so that the ring can be sprung into place in the groove after the head 0, andthe spring K, have been put in place.

Fig. 3, shows the music sheet B, at its minimum possible width, at which stage the spring K, pressing inwardly upon the head C, at the bottom of the socket J, seats the head against the adjacent end of the core A. Any expansion of the music sheet forces the head outwardly against the stress of the spring. The music sheet is therefore uniformly confined at its side edges, and hence always winds and unwinds squarely, thus avoiding the formation of ragged edges, and facilitating proper registration with the tracker.

The music sheet should have sulficient length between its end which is attached to the core, and the termination of its music controlling apertures, always to maintain enough winding on the core to resist the maximum tension of the spring.

Both heads may be yielding; but, preferably, the head D, is fixed to the core so as to maintain a definite position on the roll for one edge of the sheet.

I claim 1. A music roll having, in combination, a core having a chamber at one end; a fixed pin extending outwardly through said chamber and having a peripheral holding groove near its outer end; a sliding head having an inwardly extending boss fitting over and sliding upon said pin and extending into said chamber, an outwardly extending sleeve, and an elongated central socket extending inwardly through said sleeve and into said boss and surrounding said pin with a space between; a coiled spring within said socket and surounding said pin; and a split resili ent retaining ring sprung into said holding groove and constituting an outer abutment for said spring.

2. A music roll having, in combination, a core having a chamber at one end; a fixed pin extending outwardly through said chamber; a sliding head having an inwardly extending boss fitting over and sliding upon said pin and extending into said chamber, an outwardly extending sleeve, and an elon gated central socket extending inwardly through sleeve and into hose and surrounding said pin with a space between; a coiled spring within said socket and surrounding said pin; and an abutment on said pin to resist the outward thrust of said spring.

3. A music roll having, in combination, a core having an internal chamber open at one of its ends; a fixed pin extending from said core outwardly through said chamber; a sliding head having an inwardly extending boss fitting over and sliding upon said pin and extending into said chamber; an outwardly extending sleeve normally terminating short of the outer end of said pin, and an elongated socket extending inwardly within said sleeve and surrounding said pin with a space between; a coiled spring within said socket and surrounding said pin and an abutment on said pin beyond the outer end of said sleeve when occupying its normal position against which the outer end of said spring bears.

In witness whereof, I have hereunto signed my name.

WILLIAM E; HASKELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. G.

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