US425180A - Leaf turner - Google Patents

Description

(No Model.) a 2 Sheets-Sheet 1.

M. KYLE. LEAF TURNER.

No. 425,180. Patented Apr. 8, 1890.

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M. KYLE.

LEAF TURNER.

No. 425,180. PatentedApr. 8, 1890;

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MORISON KYLE, or RAT PORTAGE, ONTARIO, oANAnA.

LEAF-TU RN ER.

SPECIFICATION forming part of Letters Patent No. 425,180, dated April 8, 1890.

Application filed Tune 21, 1889. Serial No. 815,054. (No model.)

T0 at whom it may concern.-

Be it known that I, MORIsON KYLE, of Rat Portage, in the Province of Ontario and Dominion of Canada, have invented new and useful Improvements in Music-Leaf Turners, of which the following is a full, clear, and ex.- act description.

My invention relates to an improvementin music-leaf turners, and has for its object to provide a device, automatic in its action, whereby bound music, sheet-music, or single or detached sheets may be effectively turned without the possibility of the same falling upon the keys; and the further object of the invention is to provide a music-leaf turner capable of being constructed to turn a large number of leaves.

The invention consists in the novel construction and combination of the several parts, as will be hereinafter fully set forth, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar figures of reference indicate corresponding parts in all the views.

Figure 1 is a front elevation of the device, illustrating the same as attached to the fretwork of the instrument. Fig. 2 is a horizontal section through one of the drums. Fig. 8 is a plan view of the mutilated gears operating to turn the music; and Fig. 4 is a perspective detail view of a portion of the fretwork to which the device is secured, and the rest-bar adapted for attachment to the said fretwork.

In carrying out the invention the body of the device consists of a rectangular frame 10, provided about the center with a transverse bar 11. In the top and bottom of the frame, and likewise in the cross-bar 11, a revoluble shaft 12 is journaled, the upper portion of which shaft is longitudinally toothed or serrated, as illustrated at 13 in Fig. 1, and the lower portion of said shaft is provided with a quick feeding-thread 14, and made to terminate at its lower extremity in a handle 15. The lower bearings are threaded to receive the threaded portion of the shaft, the bearing located upon the upper bar of the frame being smooth to admit of the free revolution of the toothed portion of the shaft. To the left of the shaft 12, between the crossbar 11 and the upper portion of the frame,.two drums 16 and 17 are fixed, one drum. being independent of the other. Each of the said drums is provided with a train of gearing, substantially as illustrated in Fig. 2,in which a spring-actuated spur-wheel 18 is made to mesh with a pinion 19, and upon the shaft carrying the pinion a mutilated gear 20 is socured, the teeth upon the periphery of the said mutilated gear being arranged in spaced segments.

Below the mutilated gear 20 a stop-lever21 is pivoted, one end whereof is adapted for contact with the periphery of the mutilated gear. The stoplever 21 is normally held in contact with the said gear by a spring 22, and a cord 23 is secured at one end to the lever, the other end of which cord, leading downward, is preferably attached to a foot-treadle beneath the instrument or a front treadle similar to the swell of an organ. The several mutilated gear 20 mesh wit-h the upper section of the shaft 12, as best shown in Fig. 1.

The mechanism in one drumhas a reverse movement to that of the other, the drum 16 being purposed to revolve the shaft 12 from right to left and the drum 17 from left to right. At the right of the shaft 12 a second and parallel shaft 25 is detachably inserted in a sleeve or socket 26, attached to the crossbar 11 and the upper bar of the frame. The shaft 25 is provided with a series of segmental gears 27, loosely mounted thereon, and adapted, respectively, for engagement with a similar gear 28, rigidly attached to the upper end of the main shaft 12.

From each of the mutilated or segmental gears 27 a horizontal arm 29 is projected, which arm is curved downward at its extremity and made to terminate in a clip 30 of any suitable or approved construction. The several arms 29 of the segmental or mutilated gears 27 are parallel, the downwardly-extending or vertical sections being so arranged that when all the arms are folded back the vertical section of the upper arm only will be visible from the front, the similar sections of the other arms being hidden thereby, as best illustrated in Fig. 1.

The frame 10 of the device is screwed or otherwise attached to the usual fretworkmusic-rest 31, preferably near the top at the center, as illustrated in Fig. 1. In each side of the fretwork-rest, in the front face, recesses are made, usually covered by a plate 32,having a T-opening 3-3, and a rest-bar 34: is pro vided adjustable upon the fretwork,beiug, to that end, fitted at or near each extremity with a T-stud 35, adapted to enter the several T- recesses above referred to. Thus the restbar, which supports the lower edge of the'music, may be raised or lowered according to the size of the music, in order that the clips 30 may be readily attached to the upper portion of the pages.

WVhen it is desired to close the instrument,-

the shaft 12 is screwed down until the top is substantially flush with the top of the fretwork, and the shaft 25 is removed from its socket. This direction as to closing instrument only refers to square or grand pianos, where the music-rest folds under the cover. In upright (or cabinet) pianos or organs, where the music-rest is on the fretwork directly above the cover on the outside, there will be no necessity for moving any part of the device.

In operation, the several arms 29 having been attached to the music-sheets and the train of gearin gin the drum 16 set in motion by means of the foot or knee trcadle, the shaft 12 is given a complete revolution, whereby the gear 28, meshing with the upper gear of the series of gears 27, revolves said gear, thereby carrying the upper arm from right to left. This operation is completed in half of the revolution of the shaft 12. The rem ainin g half of the revolution causes the said shaft to descend, through the medium of the threaded bearing in the frame and the threaded surface upon the shaft, to such an extent that the said gear 28 will mesh with the next lower gear 27, the parts remaining in this position until the train of gearing in the drum 16 is again set in motion, whereupon the second arm 29 is carried from right to left in a similar manner to the upper arm, and so on with the other arms, or as many as are required.

\Vhen it is desired to repeat the page of music last turned over, the train of gearing in the drum 17 is set in motion and the gear 28 made to reverse, thereby turning back from leftto right the arm last turned from right to left.

The handle 15 is used for turning the shaft 12 up to its place when turned down to the last arm 29 before commencing to perform. The entire device, with slight modifications, may be adapted for use in connection with orchestra-band music-stands.

Having thus described my invention, I claim as new and desire to secure by Letters Patent-- 1. The combination, with the fretwork music-rest of a musical instrument provided with a series of T-recesses at its ends and a rest-bar provided with T-studs at the extremities, of a frame secured to the said fretwork, a shaft revolvingin said frame provided with a series of longitudinally-arranged teeth at one end and a thread at the other end, a train of gearing engaging the said toothed shaft, and a second parallel shaft provided with a series of spaced arms extending outward from the second shaft, all combined for operation substantially as shown and described.

2. The combination, with a frame, a spiral shaft journaled in the same provided with longitudinally-arranged teeth extending from the upper end to a point at or near the cen ter, and provided with a threaded surface upon its lower end, independent trains of gearin having reverse movements connected with the toothed surface of the shaft, shifting-cords attached to the trains of gearing, and means, substantially as described, for manipulating said cords, of a second parallel, shaft, segmental gears loosely mounted upon the said shaft, arms connected with the gears, and a segmental gear fast to the toothed and threaded shaft adapted for engagement with the several gears upon the arm-carryin g shaft, as and for the purpose specified.

The combination, with a fretwork-framc provided with T-recesses in the front face at the ends, and a music-rest bar provided at its extremities with a T-stud adapted to e11- ter said recesses, a second frame rigidly secured to the said fretwork frame, a shaft journaled in the latter frame provided with longitudinally-arranged teeth extending from the upper end to a point at or near the center, and provided with a threaded surface upon the lower end, a detachable shaft parallel with the toothed shaft, a series of segmental gears loosely mounted upon the detachable shaft, angle-arms attached to the said segmental gears, clips secured to the lower extremities of the said angle arms, and a segmental gear fast to the upper end of the toothed or main shaft adapted to mesh with the gear upon the detachable shaft, of drums secured upon the attached frame, trains of gearing located in said drums adapted for reverse movements, a connection between the trains of gearing and the toothed or main shaft, and trip-cords attached to the said gearing, whereby either maybe independently brought into action to revolve the main shaft, substantially as shown and described.

4. The combination,with a revoluble shaft longitudinally toothed at one end and threaded at the other, a mutilated gear-wheel on said shaft, and a series of leaf-turners provided each with a mutilated gear, of a springactuated mutilated gear-wheel and means for regulating the movement of said springactuated gear-wheel, substantially as described.

MORISON KYLE.

\Vitnesses:

.T. L. DALZIEL, Tnos. HUNTER.

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