US1033656A - Music-leaf turner. - Google Patents

Description

Y O. H. BARNETT.

MUSIC LEAF TURNER.

APPLICATION FILED MAR. s, 1911.

1,033,656; Patented July 23,1912.

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UNITED STATES ()FFICE...

CHESTER H. BARNETT, OF'LINCOLN, NEBRASKA.

MUSIC-LEAF TURNER.

To allwhom 2'25 may macem Be. it known that I, CHESTER H. BARNETT, acitizen of the United States, and a resident of Lincoln, in the county of Lancaster, State of Nebraska, have invented a new and useful Improvement in Music- Leaf Turners, of which the following is a specification.

My invention relates to improvements in music leaf'turners, and has for its object to provide a' simple, cheap and efficient device adapted to be used in connection with pianos, organs, &c., for readily and quickly turning either forward or backward the leaves of sheet music or music books.

My invention consists in certain novel features of construction, arrangement and combinaticnof parts as will be hereinafter fully described and pointed out in the claims, reference being had to the accompanying drawing, in which:

Figure 1 is a front elevation of the device; Fig. 2 is a central vertical section of' same showing in section the upper and lower ends of the concentric operating shafts. Fig. 3 is aperspective view of the baseportion with front removed and showing' the operating mechanism; Fig. 4 is a fragmentary perspective view showing the music base support; Fig. 5 is a transverse section on line 55 of Fig. 4. Fig. 6'is a perspective view showing the claspat the end of the arm for supporting outer upper corner of thesheets. Fig. 7 is a top plan view showing means for securing the leaf supporting arms to their respective operating shafts.

The base A of the-device is a box-like structure and isdivided into four sections by the partitions A; in the lowest section:

and upon the floor of the same is slidably mounted the rack a which forms a push key. A pinion b is mounted on the lower end of shaft .7), which shaft passes through the various sections and is journaled at its upper and lower ends; the rotation of pinion b-and the shafts b rotates pinion b secured to shaft 6' in the upper section of the base and said pinion meshes withthe rack bar 0 which is wider at the central portion than at each endc, the central portion and each reduced end portion having a toothed edge; the wider central portion engages the pinion oZ mounted on the hol- Specification of Letters Patent.

Application filed March 8; 1911.

Patented July 23, 1912. Serial No. 612,986..

low shaft 6 mounted on another hollow shaft which inturn is mounted on a solid center shaft 9, all'the shafts being suitably mounted in the base A. The hollow shaft 6 extends upwardly within the box-like standardH and carries at its upper end a sleeve 6 secured theretoby a setscrew; the

sleeve has: an extension 6 which is slotted to:receive-an'd holdan arm 2' which carries at its outer end the spring clasp 1" shown in Fig. 6. The arm 2' is pivotally secured at its inner end in the slotted sleeve extension 6- by a bolt 2' passing through the 'same, said bolt also securing one end of a spring which carries a locking pin i which is forced'through slotted extension 6 and the inner end of arm 2'; by withdrawing the locking pin 2' the armi may be swung upward on its pivot i As stated, the shafts and f are carried by a solid shaft 9, that is, they are concentrically mounted; the solid shaft g is stepped at its lower end in the bottom wall of the base member and has mounted on it within the second section of the base the pinion g which engages the rack 9 (similar in construction to rack 0,) said-rack 9 being also engaged bythepinion g mounted on the shaft g in the second section, said shaft 51 carrying at its lower end the piniong actuated by the rack key 9 mounted and operated in the same manner in guide 9 as the key a. As hereinbefore described, the shaft f which surrounds shaft 9 and is within shaft 6 has at its-lower end the pinion f which is within the third section or compartment of the base, said pinion being engagedby rack f similar to rack 0 (previously de scribed), which rack f is engaged by pinion f mounted on shaft f carrying at its lower end the pinion f mounted and operating in the same manner by the rack key f as the key a hereinbefore described and guided by guide f By pushing in on key a the rack c rotates hollow shaft e and swings arm 2' to the left; pushing in on key f swings bar or arm j to the left and pushing in on key 9 swings armk to the left; the right ends of the rack bars 0, f and g are similarly reduced and provided with teeth which are engaged, respectively, by the pinions Z, m and a mounted on shafts Z, m, 72, carrying at their lower ends pinions Z m 129, which are engaged by the rack bars or keys Z m n held by the guides Z, m a all these parts being similar to corresponding members on the left side of the device; by pushing in on the keys F, m and n the arms 70, j and i are swung back to the left again. Of course, as many arms may be used as desired, and the necessary operating parts installed. (in the ends of rack bars a, f and g and rack bars Z m and n are placed the heads or buttons A F and G and L, M and N.

The standard H, as before stated, is a boxlike structure and may be open at the front side as shown or it may be closed. A shelf H having end extensions H H hinged thereto by hinges if has a cut out portion fitting the standard H and the upwardly extending lugs or cars H carrying inwardly projecting pins 72, which rest on the toothed rack k mounted on each side of the standard H. The toothed rack h is made integral with the plate if which prevents the pins 7&3 from being forced too far rearwardly; the teeth of the rack h are made flat on their upper surfaces on which the pins 7&3 rest, but slant rearwardly on their vertical edges so that the pins 7& may slide readily upward to the next tooth above. On the bottom of the base A a plate A is secured, said plate having its front edge curved downwardly, as at A to rest over the edge of the piano above the keyboard; the lower face of plate A may have some soft substance, as fabric or rubber, to prevent scratching of the wood-work of the piano or organ.

At the outer ends of the arms 71, j and 7c are secured spring clasps 1", s and t which are elongated and grasp the upper corners of the sheet music; the arms 2'', j and 713 can be readily removed from their respective op erating shafts, and the ends H of the shelf folded on the section H, whereupon the entire device can be packed in a small space; indeed,the shelf H may be entirely removed from the standard H and the entire device put in a receptacle large enough simply to receive the base A.

It will be seen that I provide a simple, cheap and efficient music leaf turner free from springs or other delicate parts apt to break and get out of order.

I claim:

1. In a music leaf turner, the combination with a base portion, a plurality of horizontal and longitudinally movable rack bars, a plurality of parallel vertical shafts mounted in said base, a plurality of pinions mounted on each shaft and adapted to engage the aforesaid rack bars, a plurality of transversely movable rack bars adapted to engage pinions on the parallel vertical shafts, a standard extending upwardly from the base, a plurality of concentric shafts mounted in said standard, pinions secured to the lower ends of the concentric shafts adapted to be engaged by the longitudinally movable rack bars and leaf carrying arms entending horizontally from the upper ends of the concentric shafts.

2. In a music leaf turner, the combination with a. base, a plurality of horizontal and longitudinally movable bars arranged in tiers, ea ch bar having a toothed central portion and end portions said end portions reduced in width and provided with teeth; a standard. extending upwardly from said base and carrying a plurality of concentric shafts therein, pinions mounted on tire lower ends of the concentric shafts, leaf carrying arms extending from the upper ends of the concentric shafts, a plurality of parallel vertical shafts mounted in the base, each shaft having a pinion at its lower end and another pinion, said last mentioned pinion engaging a reduced end of one of the longitudinal bars, the central toothed portion of each bar engaging a pinion on the lower end of a concentric shaft, and transversely mounted toothed racks mounted to slidably engage the pinions on the lower ends of the parallel shafts.

3. In a music leaf turner, the combination with a base portion and vertical standard, of concentric shafts mounted in said standard, and leaf carrying means comprising a hub rigidly secured at the upper ends of the shafts, an arm pivotally secured to said hub and projecting therefrom, and a spring pin carried by the hub and adapted to engage the arm and lock it in a horizontal position, and clasps at the outer ends of the arms.

4. In a music leaf turner, the combination with a base portion and vertical standard, of concentric shafts mounted in said standard, and leaf carrying means comprising a hub rigidly secured at the upper end of each shaft, a bifurcated spoke extending horizontally from said hub, an arm pivotally held between the bifurcations, a spring pin mounted on the bifurcated spoke and adapted to project through alined openings in the bifurcations and pivoted arm, and clasps at the outer end of the arm.

5. In a music leaf turner, the combination with a base portion having compartments arranged in vertical tiers, a longitudinally movable bar mounted in each compartment, each bar having a central toothed portion and end portions, said end portions reduced in width and having teeth, a standard eX- tending vertically from the base, a plurality of concentric shafts mounted in said standard and base and carrying leaf supporting arms at their upper ends, pinions mounted on the lower ends of the concentric shafts, a plurality of parallel vertical shaft-s corresponding in number to the concentric shafts mounted in the base on each side of the standard, each vertical shaft carrying two pinions, one to engage a reduced end of a longitudinal bar, said longitudinal bars enthe base on each side of the standard and gaging at their central toothed portion a pinengaging the pinions at the lower ends of ion on the end of one of the concentric shafts, the parallel vertical shafts.

the other pinion on each of the parallel ver- CHESTER H. BARNETT. tical shafts being secured to the lower end Witnesses:

oi. said shafts and transversely slidable rack WM. F. MORTON,

bars mounted in the lower compartment of EARNEST HORTON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0.

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