US513963A - Music-leaf turner - Google Patents

Description

2 Sheets8heet 1.

(No Model.)

C. S. OLIZBE. MUSIC LEAF TURNER.

Patented Jan. 30 18%.

ITNESSES: I

ATTORNEY.

(No Modem 2 Sheets-Sheet 2 G. S. OLIZBE. MUSIC LEAP TURNER.

No. 513,963. V Patentd Jan. 30, 1894.

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UNl'TED STATES PATENT OFFICE.

CHARLES S. OLIZBE, OF DENVER, COLORADO.

M USlC-LEAF TU RN ER.

SPECIFICATION forming part of Letters Patent No. 513,963, dated January 30, 1894.

Application filed May I, 1893. Serial No. 472,558. (No model.)

T on whom it may concern.-

Be it known that 1, CHARLES S. CLIZBE, a citizen of the United States of America, residing at Denver, in the county of Arapahoe and State of Colorado, have invented certain new and useful Improvements in Music-Leaf Turners; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to improvements in music leaf turners, and consists of the fea tures, arrangements and combinations hereinafter described and claimed, all of which will be fully understood by reference to the accompanying drawings in which is illustrated an embodiment thereof.

In the drawings, Figure 1 is a front elevation of the complete device, the standard being partly broken away in the center. Fig. 2 is a side elevation of the same. Fig. 3 is a vertical longitudinal section taken through the device. Fig. 4. is a top View of the leaf turning mechanism. Fig. 5 is a detail view, partly in section and partly broken, of the swinging arm which actuates the leaf holder. Fig. 6 is an enlarged top view of the switch segment which guides the actuating arm. Fig. 7 is a side view of the same. Fig. 8 is a side view of one of the leaf holders. Fig. 9 is a horizontal section taken on the line 93-00, Figs. 1, 2 and 3.

Similar reference characters indicating corresponding parts or elements of the mechanism in the several views, let the numeral 5 designate the folding rack pivoted at 6 to a bifurcated arm 7 made fast to the upper extremity of a tube 8 carrying the rod 9, angular in cross section and swiveled in the inclosing tube. The tube 8 is adapted to slip within a larger tube 10 in which is swiveled a smaller tube 12 angular in cross section and adapted to receive the rod carried by the tube 8. It will thus be seen that the upper tube 8 and the rod 9 telescope within the lower tubes 10 and 12 respectively. These telescoping parts are held in any desired position of adjustment by means of a thumb screw 13 engaging a clamp 14 attached to the larger tube. The tube 12 terminates at its lower extremity in a spiral stem 12, which projects below the tube 10 and engages a counterpart nut 15 carried by a lever 16 fulcrumed at one extremity to an arm 17 and terminating at the opposite extremity in a foot-plate 16. The arm 17 is pivoted at 18 to an arm 19 made fast to the lower extremity of the outer tube. The lever 16 is normally held at its upward limit of movement by an elastic band 20 which engages a recessed lug 21 attached to the lever and a stop 22 verticallyadj ustable on the tube 10 bymeansot aset screw 23. It will be readily observed that a coil-spring might be substituted for this band, though the latter is believed to be the simplest device for accomplishing the end sought, nam ely,the raising of the lever after it has been depressed by the foot. Pivoted to the lower extremity of the outer tube above the foot lever is an arm 40 provided with an outward projection etO which is of sutlicient gravity to normally hold the arm in engagement with a stop 41, or in a position to form a stop for the foot lever and check its upward movement before the elastic band has spent its force.

To the upper extremity of the rod 9, which is reduced and flattened for the purpose, is pivoted or hinged the bifurcated extremity of an arm 24 provided atits free extremity with two reciprocating dogs 25 located in recesses formed in the end of the arm. The central portion of the dogs is reduced and surrounded by coil-springs 27, while a pin 26, passed through the arm, engages the lower extremities of these springs and forms a stop which engages the lower shoulders of the dogs and prevents them from leaving the arm. The upper or outer shoulders of the dogs are engaged by the springs, whereby the dogs are normally held at their outward limit of movement. These dogs project a short distance from the arm extremity, and are provided with faces oppositely beveled and are separated by a narrow space 28. Near its pivoted extremity, the arm 2i is provided with a hooked projection 20 adapted to enter grooves formed in the switch segment 31 attached to the top of the tube 8. In these grooves are pivoted the switch tongues 30 in such a manner that they are normally open in front to receive the projection 29 of the arm 24. The leaf holders consist of arms 32 provided with the clasps 33 and the wires 34 which constitute the leaf retaining devices. The wires are pivoted to arms 32, and may therefore, be moved to a position parallel therewith for the purpose of folding the device into the least possible .compass when not in use. The bottom flange 5 of the rack 5 is cut away as shown at 5 to receive the leaf-holding clasps of the arms 32. The arms 32 are pivoted at their inner extremities on a pin 35 passed through a forward projection 5 formed on the rack. Each of these leafturning arms is provided with a depending projection 32 which is engaged by the arm 24 during the operation of turning the leaves. The arms 32 are preferably provided with a hinged joint near their inner extremities to facilitate the folding of the device.

The device when in use is supported upon the legs 36 pivoted to an adjustable sleeve 37 and to arms 38, said arms being also pivoted to lugs on the standard, whereby the supporting legs may be folded up against the standard in the usual manner when not in use.

In describing the operation of the device, I wlll assume that the arms 32 are on the right hand side of the rack as shown in Fig. 1, and that the arrangement is such that the elastic band 20 through the medium of lever 16, Spiral 12, tube 10, rod 9 and tube 8 normally holds the arm 24 raised somewhat from the rack by reason of the engagement of the foot lever with the arm 40. Now, if it is desired to turn the leaves from the right toward the left, referring to Fig. 1, the arm 40 is raised by the foot sufficiently to release the foot lever, when the force of the band 20 acting through the medium of the aforesaid elements will carry it downward to engagement with the projection 32 of one of the arms 32, which projection occupies a position in the space 28 between the dogs 25 of the arm. The footplate 16 is then moved downward by pressing the foot thereon. This downward movement of said plate, depresses and moves the nut 15 on the spiral rod 12 and gives the rod 9 a partial rotation by virtue of the construction heretofore described. This movement of rod 9 turns the arm 24 from the one side to the other of the rack 5. After the arm 24 has passed the center of the rack, the projection 29 engages the groove 31 on one side of the switch segment and is guided downward by the switch tongue sufficiently to release the projection 32 of the arm 32, when the latter arm falls by gravity to engagement with the rack 5, while the projection 29 of the arm 24 passes out of the groove 31 at the opposite extremity from which it entered the groove. As soon as the pressure upon the foot-plate 16 ceases, the elastic band returns the arm 24 to the other side of the rack, when the beveled face of one of the dogs engages the projection 32*of another arm 32 and forces the dog inward sufficiently to allow the projection to slip into place between the dogs. After all the arms 32 havebeen transferredfrom the right hand slde of the rack 5 to the left hand side, they may be thrown back again by the same operation, except that the foot pressure throws the arm 24 over to the left and causes it to engage the projection 32 on that side, said pressure being continued sufliciently for the purpose, while the recoil of the elastic band throws the arms 32 with the music leaves over to the right hand side of the rack. It must be understood that the object of the arm 40 is to form a stop for the foot lever and normally retain the arm 24 partly raised from the rack 5, through the medium of the parts heretofore mentioned whereby it may be in position to act on the leaf-holding arms on either side of the rack. If the leaf is to be turned from the right toward the left, the arm 40 is raised and the foot lever released, while if it is desired to turn the leaf from the left toward the right, the foot lever is pressed until the arm 24 engages a leaf-holding arm on the left, when it is released, the force of the elastic band throwing the leaf-holding arm over to the opposite side of the rack. It will thus be seen that the arm 40 maintains the arm 24 in position to move either way, according as it is desired to turn the leaves from the right toward the left or vice versa.

The object of the arm 40 as heretofore intimated, is to form a stop for the lever 16 before its nut 15 has moved to the upper extremity or limit of the spiral 12, when it is desired not to allow the arm 24 to move to engagement with the arm 32 on the right hand side of the rack. The length of. the spiral 12 is such that if the lever 16 is allowed to move to its upper extremity, the arm 24 will be thrown to its limit of movement on the right hand side of the rack and to engagement with an arm 32; but this is not always desirable since it is sometimes necessary to turn a leaf from the left hand side of the rack to the right hand side thereof before all the leaves or sheets of music have been turned from the right hand side to the left hand side. Hence there being still some sheets held by arms 32 on the right hand side of the rack, it would be impossible to reverse the position of the last leaf turned to the left hand side, without some device to prevent the arm 24 from moving always to engagement with an arm 32 on the right hand side .under the influence of the elastic band 20. I therefore employ the movable arm 40 which actsas a stop to the lever 16 and prevents the arm 24 from moving to engagement with an arm 32 on the right hand side through the medium of the elements heretofore described. The movement of the arm 24 being thus arrested before the nut 15 has moved to the upper extremity of spiral 12*, if the lever 16 be released from the arm 40 by moving the latter up with the foot, the arm 24 may pass to engagement with an arm 32 on the right hand side of the rack. If, however, it is desired to turn a leaf from the left hand side this may be done by pressing the lever 16 downward when the arm 21 will be thrown to the left.

It must be understood that the arm 40 is movable and may be thrown upward out of the path of lever 16 and suitably maintained in such position by frictional contact or otherwise until its use is desired.

Having thus described my invention, what I claim is 1. The combination with the pivoted leafholding arms suitably supported, of a tubular standard, a rod passing therethrough and terminating at its lower extremity in a spiral portion, an arm pivotedto the upper extremity of the central rod and fashioned at its outer extremity to engage the leaf-holder, and a foot-lever suitably fulcrumed and carrying a nut engaging the spiral part of the rod, substantially as described.

2. In a music-leaf turner, the combination with the tubular standard suitably supported, a rod passing therethrough and swiveled thereon, its lower extremity consisting of a spiral part, leaf-holding arms pivoted 011 a suitable support attached to the standard, an arm pivoted to the upper extremity of the central rod and fashioned at its outer extremity to engage the leaf-holding arms, a footlever carrying a nut engaging the spiral part of the rod, whereby as the foot-lever is depressed, the rod is given a partial rotation in one direction, and suitable means for reversing the movement of the rod, substantially as described.

8. In a music-leaf turner, the combination of the tubular standard, the central rod spirally fashioned at its lower extremity, pivoted leafholding arms attached to a support made fast to the standard, an arm 2 f pivoted on the central rod and adapted to engage the leaf-holding arms, and a segment attached to the upper extremity of the standard and provided with grooves adapted to receive a projection on the arm 24, whereby the latter is guided in the performance of its function, and means for imparting to the central rod a partial rotation in reverse directions, substantially as described.

at. In a music leaf-turner, the combination with the standard suitably supported, leafholding arms pivoted on a support attached to the standard, an arm 24: pivoted on the standard and provided with spring-actuated bevel-faced dogs at its outer extremity, separated to receive a projection on the leaf-holding arms, and means for actuating and guiding the arm 24, as and for the purpose set forth.

5. In a music leaf-turner, the combination with the standard of the pivoted leaf-holding arms provided with a depending PIOJGGblOll, and an arm 24 pivoted on the standard and provided at its free extremity with bevelfaced, spring-actuated dogs adapted to engage the depending projection on the leafholding arms, means for actuating the arm 24C to turn the leaf-holding arms, and means for releasing the last named arms from the retaining dogs of arm 24, substantially as described.

6. In a music leaf turner, the combination of a rod rotatably supported and provided with a spiral portion, a lever carrying a nut engaging the spiral part of the rod, an arm 24 hinged to the rod and fashioned to grasp leaf-holding arms, and a stationary plate provided with switches adapted to engage a projection on the arm 24 as the latter is actuated in the performance of its function, substantially as described.

7. In a music leaf turner, the combination of a rod rotatably supported and provided with a spiral portion, a lever carrying a counterpart nut engaging the spiral portion of the rod, a spring attached at one extremity to a stationary part and at the opposite extremity to the lever and a stop movably attached to a support and adapted to engage the lever and check its movement at a suitable point when actuated by the spring, substantially as described.

8. In a music leaf turner, the combination of a divided tubular standard, one part thereot -c'arrying a swiveled inner rod angular in cross section, and the other part carrying a counterpart inner tube in which the angular rod telescopes, one of these angular parts having an exposed spiral portion, an arm 2d hinged to one of the inner parts and fashioned at its free extremity to engage suitable leaf holding arms, and means for imparting to the rod carrying the arm 24:, a partial rotation in reverse directions, substantially as described.

9. In a music leaf turner, an arm provided at its free extremity with two reciprocating bevel-faced dogs adapted to engage the leaf holding devices, substantially as described.

10. In a music leaf turner, the switch plate suitably supported and provided with tongues adapted to guide the arm which actuates the leaf holder, substantially as described.

In testimony whereof Iaffix my signature in the presence of two witnesses.

CHAS. S. CLIZBE.

lVitnesses:

J. B. WILLsEA,

CHAS. E. DAWSON.

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