US887334A

US887334A - Music-leaf turner.

Info

Publication number: US887334A
Application number: US38134407A
Authority: US
Inventors: Al H Lamb
Original assignee: Individual
Current assignee: Individual
Priority date: 1907-06-28
Filing date: 1907-06-28
Publication date: 1908-05-12
Anticipated expiration: 1925-05-12

Description

No. 887,334. PATENTED MAY 12, 1908. A. H. LAMB.

MUSIC LEAF TURNER. APPLICATION FILED JUNE 28, 1907.

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PATENTED MAY 12, .1908.

A. H. LAMB. MUSIC LEAF TURNER.

APPLICATION FILED JUNE 23. 1 so7.

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AL H. LAMB, OF ELBON, PENNSYLVANIA.

MUSIC-LEAF TURNER.

Specification of Letters Patent.

Patented May 12, 1908.

Application filed June 28, 1907. Serial No. 381,344.

To all whom it may concern:

Be it known that I, AL H. LAMB, a citizen of the United States, residing at Elbon, in the county of Elk and State of Pennsylvania, have invented a new and useful Music-Leaf Turner, of which the following is a specification.

The invention relates to improvements in music leaf turners.

The object of the present invention is to improve the construction of music leaf turners, more es ecially that shown and described in Patent, 0. 729,944, granted to me June 2, 1903, and to provide a simple and comparatively inex ensive construction, adapted to enable a urality of sheets or leaves to be successive y turned, and capable, when operated, to turn the leaves in either direction of presenting to the front, in position for 0 er ation, a set of finger pieces for moving the eaf turning means in the opposite direction.

With theseand other objects in view, the invention consists in the construction and novel combination of parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims here to appended; it being understood that various changes in the form, proportion, size and minor details of constructlon, within the scope of the claims, may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings :Figure 1 is afront elevation of a music leaf turner, constructed in accordance with this invention. Fig. 2 is a rear elevation of the same. Fig. 3 is a vertical sectional view, showing the music leaf turner ap lied to a portion of a piano. Fig. 4 is an en arged vertical sectional view, illustrating the arrangement of the gearing for oscillating the leaf turning arms. Fig. 5 is a front elevation of the same. Fig. 6 is a sectional view, taken substantially on the line rr of Fig. 5. Fig. 7 is a detail view, taken substantially on the line 'yy of Fig. 2.

Like numerals of reference designate corresponding parts in all the figures of the drawlegs.

1 designates the back or body of the music leaf turner, which back or body 1 may be constructed of any suitable material, such as wood or metal, and it may be ornamented in any preferred manner. The music leaf turner, which is designed for use on pianos and similar instruments, may also be advantageously employed in various other laces, where it is desirable to turn sheets or eaves of music. In order to enable it to be conveniently mounted on a piano 2, as illustrated in Fig. 3 of the drawings, it is provided at the bottom with a rear spring 3, constructed substantially the same as that shown in the said atent, and an adjustable bar 4 is also provic ed for engaging the upper portion of the piano. The adjustable bar 4, which operates in a suitable guide 5, is secured in its adjustment by a set screw 6, and it is provided at its upper end with a suitable head 7 for engaging under a projecting front edge of the top of the piano. The guide 5 is composed of spaced sides or flanges suitably secured to the rear face of the back or body 1. This guide 5 is secured to the rear face of the back or body by means of transverse straps or

pieces

8, 9 and 10. The set screw is mounted on the top strap or piece 8, and it' engages the adjacent si e or flange of the guide 5, a suitable threaded perforation being provided in the top strap or piece 8. The adjustable bar is adapted to be raised or lowered to enable the music-leaf turner to be securely mounted on a piano, or similar instrument. Any other suitable means may be employed for mounting the music-leaf turner on either an instrument or a stand, as will be readily apparent.

The music-leaf turner forms a music rack and for this purpose is provided with side clamps 11, and a central clamp 12. The side clamps 11, which are adapted to en age the front and rear leaves of a piece of s eet music, or the front and rear portions of a music book, or the like, are constructed of resilient wire, or other suitable material and extend upwardly and downwardly, as clearly illustrated in Fig. 1 of the drawings. The lower terminals of the material of which the side clamps are constructed are bent to form eyes 13 to receive screws 14, or other suitable fastening devices for securing the side clamps to the back or body. The upper portions of the side clamps are adapted to be sprung away from the back or body to permit the leaves or sheets of music to be placed back of the side clamps in position to be engaged by the same. I

The central clamp consists of a pivoted rod or member, extending upwardly from the lower portion of the back or body at the center thereof and provided at its lower end with a head 15, through which passes a ivot 16, which is mounted in a substantial y U- shaped bracket or piece 17, secured to the front face of the back or body and consisting of spaced sides and a connecting bottom portion. The space between the sides of the bracket 17 registers with a slot 18 of the back or body and the head 15, which is beveled or rounded at the front, is provided with a straight rear edge and is adapted to be engaged by a spring 19, whereby the central clamp is held either in or out of engagement with the music. The s ring 19, which may consist of one or. more eaves, is secured to the rear face of the back or body and is provided with a head 20 for engaging the head of the central clamp 12. The head 20 of the spring is beveled, as clearly shown in Fig. 3 of the drawings, and the spring is of sufficient strength to maintain the central clamp firmly in engagement with the music, and it permits the central clamp to be readily swung downward to nearly a horizontal position to enable a music book or piece of sheet music to be placed on or removed from the music-leaf turner. The back or body of the music-leaf turner is also provided with a plurality of ins or projections 20 to support the lower e ges of the leaves to relieve the central and side clamps of the weight of the music.

The leaves or sheets of music are swung from one side to the other of the back or body by means of a plurality of leaf turning arms 21 to turn the sheets or leaves. The leaf turning mechanism is mounted on and carried by a bearing bracket 22, which is detachably secured to the back or body of the music leaf turner by screws 23, and which may be readily applied to anymusicrack. The hearing bracket, which is composed of a back portion and top and bottom portions is provided with a transversely curved front plate 24. The leaf turning arms, which are substantially L-shaped, are provided at the inner ends of their horizontal portions with

heads

25 and 25, having openings of progressively increasing diameters to fit an inner central supporting shaft or spindle 26, and a plural ity of nested or telescoped tubular shafts or

sleeves

27, 28, 29, and 30. The shaft or spindle and the sleeves are mounted in the bearing bracket, and the sleeves are successively terminated short of one another, as clearly illustrated in Fig. 4 of the drawings to permit the leaf turning arms to be arranged one upon another and to swing in different planes, so as not to interfere with one another. The shaft or spindle 26 extends beyond the sleeves, and the sleeve of the smallest diameter is arranged on the shaft or spindle. Each sleeve turns independently of the other and the shaft or spindle rotates independently of the sleeves. The head 25 of the leaf turning arms is provided with a set screw 31 for engaging the shaft or spindle 26, and other heads 25 are split to form clamping jaws, which are connected by screws 31 The shaft or spindle and the tubular shafts or sleeves are partially rotated to swing the arms from one side of the music leaf turner to the other by means of pinions 32 and toothed segments 38. The pinions, which are of the same diameter, are secured to the shaft and to the sleeves and arranged in spaced relation. The toothed segments 33 are mounted on a spindle or pivot 34 and are provided with spaced sleeves 35 to maintain them in proper position with relation to the spaced pinions. Each segment 33 is provided with ooposite arms 36, having finger pieces 37 and located at opposite sides of the pivot and movable backwardly and forwardly in reverse direction, so that when the arm at one side of the segment is moved rearwardly to swing the leaf turning arm in one direction, the operating arm 36 at the opposite side of the segment will be swun outwardly to the front of the bearing brac et and will be in position for operation to move the leaf turning arm in the opposite direction. By this arrangement one of the finger pieces of each leaf turning arm will always be at the front in position for operation. The oscillatory movements of the segments 33, which mesh with the pinions, partially rotate the same and operate the shafts to which the leaf turning arms are connected. In swinging the music from right to left the entire set of leaf turning arms may be simultaneously operated, and as the operating arms and their finger ieces are arranged at different elevations, t e leaf turning arms may be successively actuated with rapidity and certainty. The curved front plate 24 of the bearing bracket is provided with opposite slots 38 to receive the operating arms.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is

1. In a device of the ,class described, the combination with a back or body provided with a spindle, of a plurality of leaf turning arms provided with heads arranged on the said spindle, a plurality of pinions also mounted on the said spindle and connected with the said heads, a separate spindle or shaft mounted on the back or body, and toothed segments mounted on the last mentioned sha t or spindle and meshing with the pinions, each segment being provided with a pair of operating arms rigid with and ex tending in opposite directions from the segment and arranged so that when one arm of the segment is moved rearwardly the other arm of the same will be moved forwardly.

2. In a device of the class described, the combination with a back or body rovided with a spindle, of a plurality of lea turning arms having their lower ends bent forwardly and provided. with heads arranged on the said spindle, a plurality of pinions also mounted on the said spindle, a series of nested tubular shafts arranged on the spindle and connecting the heads and the pinions, a second spindle or shaft mounted on the said back or body, and toothed segments mounted on the last mentioned shaft or spindle and meshing with the said pinions, each segment being provided with a pair of operating arms rigid with and extending in opposite directions from the segment and arranged so that when one arm of the segment is moved rearwardly the other arm of the same will be moved forwardly.

3. In a device of the class described, the combination of a plurality of leaf turning arms, a series of nested shafts carrying the arms and consistin of an inner supporting spindle and a plurai ityof sleeves of different lengths and diameters, pinions mounted on the spindle and the sleeves, a pivot located in advance of the pinions, toothed segments meshing with the pinions and having sleeves mounted on the said pivot, and opposite operating arms extending from the segments and movable backwardly and forwardly in reverse directions, so that one of the operatcombination with a back or body, of a bracket mounted on the back or body and provided with front and rear spindles, a series of nested tubular shafts mounted on the rear one of said spindles, a plurality of leaf turning arms provided with heads secured to the upper ends of the nested shafts and arranged above the bracket, pinions arranged within the bracket and mounted on the nested shafts, toothed segments mounted on the front spindle and meshing with the pinions and each, provided with a pair of operating arms rigid with and extending from opposite sides of the segment, so that when one arm of the segment is moved rearwardly the other arm of the same will be moved forwardly, and sleeves also mounted on the front spindle and s acing the segments.

In testimony, that I claim the'foregoing as my own, I have hereto affixed my signa ture in the presence of two witnesses.

AL H. LAMB.

Witnesses JOHN A. DINSMORE, A. R. RoeERs.