US942949A - Music-leaf turner. - Google Patents

Description

R. J. TRIGE.

MUSIC LEAF TURNER.

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942,949. Patented Dec. 14, 1909.

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R. J. TRIBE.

MUSIC LEAF TURNER.

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Patented Dec. 14, 1909.

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R. I. TRIOE.

MUSIO LEAF TURNER.

APPLICATION nun x0114, 1908.

I 942,949. Patented Dec. 14, 1909.

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MUSIC LEAF TURNER.

APPLICATION FILED nov.14, 1908.

942.949. Patented Dec. 14,1909.

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MUSIC-LEAF TURNER.

Specification of Letters Patent.

Application filed November 14, 1908.

Patented Dec. 14, 1909.

Serial No. 462,639.

To all whom it may concern:

Be it known that I, RoMno J. Tnrcn, a citizen of the United States, residing at Eufaula, in the county of McIntosh, State of Oklahoma, have invented certain new and useful Improvements in Music-Leaf Turners; and I do hereby 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.

The invention relates to a music leaf turner and more particularly to an automatic music leaf turning device.

The primary object of the invention is the provision of a music leaf turner having spring actuated mechanism for automatically turning successively music leaves and means for reversing said mechanism whereby the previously turned music leaves will be reset.

Another object of the invention is the provision of a music leaf turner which is adapted to be mounted at the front of a pianoforte and having mechanism adapted to actuate music leaf supporting arms for turning music leaves connected to said arms said mechanism being controlled by a main winding spring, a manually operable lever to shift the mechanism whereby the arms supporting the leaf music will be successively moved so as to turn one leaf after the other at the will of the operator and means for re setting the said mechanism.

With these and other objects in view the invention for example, consists in the construction, combination and arrangement of parts as will be hereinafter more fully de scribed and as illustrated in the accompanying drawings which disclose the preferred form of embodiment of the invention. It is to be understood however, that changes, variations and modifications may be made such as come properly within the scope of the claims hereunto appended without departing from the spirit of the invention.

In the drawings :Figure 1 is a front elevation of the invention. Fig. 2 is a top plan view thereof. Fig. 3 is a longitudinal sectional view through the casing to show the position of the interior mechanism. Fig. 1 is a further top plan view with the top of the casing broken away. Fig. 5 is a vertical sectional view on the line 55 of Fig. 1. Fig. 6 is a further sectional View on the line 6-6 of Fig. 4t. Fig. 7 is a top plan view with the top of the casing removed showing the mechanism reversed. Fig. 8 is a plan view of the combined ratchet and cog gear.

Similar reference characters indicate cor- .responding parts throughout the several views in the drawings.

In the drawings, the numeral 10 designates generally the casing or housing of the music leaf turner comprising a base plate 11, front and rear walls 12 and 13, end walls 11 and a top plate 15 upon which latter are mounted vertical spaced uprights 16 having upper and lower cross strips 17 and 18 re spectively connected thereto and which form a back frame or rest for the music sheet.

Centrally in the top plate 15 and extending from the rear edge thereof is an open slot 19 with which alines a bearing groove 20 formed in the bottom or base plate 11 and mounted in the said groove and passing upwardly vertically through the open slot 19 is a rotary shaft 21 having outwardly proj ecting parallel upper and lower arms 22 to which is suitably connected at music sheet. Surrounding the said shaft 21 is a hollow shaft the same being cut away and having outwardly projecting parallel arms 2% to which is adapted to be connected a music sheet. Also surrounding the hollow shaft 53 is another hollow shaft 25 the same being cut away as at 26 to permit the movement of the arms 22 and 2% upon the rotation of the shaft carrying the same and which hollow shaft 25 carries outwardly projecting supporting arms 27 to which is adapted to be connected a music sheet.

Fixed to the lower end of the shaft 21 is a broad toothed cog gear or wheel 28 and to the shafts 23 and 25 are fixed toothed gears or cog wheels 28 and 29 respectively.

lVithin the casing 10 are rigidly mounted parallel plates or arms 29 having pivotally connected thereto the ends of a U-shaped member 30 the same supporting a'vertieally disposed key winding shaft 31 projecting upwardly through an elongated slot 32 formed in the top plate 15 of the casing.

Fixed to the key winding shaft 31 is a winding drum to which is connected one end of a main spring 3% the opposite end thereof connected to a vertical pin or post 35 carried by the arms 29 and adjacent the winding drum within the casing. Loosely mounted upon the winding shaft 31 below the winding drum 33 is a cog gear 36 having formed in its upper face ratchet teeth 37 in engagement with a spring pawl 38 carried by the winding drum and which pawl is adapted to ride over the ratchet teeth 37 when the main spring is being wound upon the winding drum by the key winding shaft and during the unwinding of the main spring the winding drum 33 is locked to the cog gear or wheel 36 by the said pawl to automatically turn the music sheet will be hereinafter more fully described.

Pivotally connected to the U-shaped member 30 are links in the form of flat plates 39 which latter support a vertical short shaft L0 forming a. bearing shaft for a rotatable cog gear or wheel 11 meshing with the cog gear or wheel 36 on the key winding shaft. Pivotally connected to the links 39 by engagement with the bearing shaft 40 are rocking plates the latter fulcrumed as at 43 to the rigid arms 29 and carrying at their free ends a squared vertical shaft 4:4: having fixed thereto a cog gear 45 and above the latter is slidably mounted on the said shaft 4 1 a gear wheel 46 the latter normally held contiguous with the cog gear 455 by a tension spring t? and which gear to is adapted to be thrown into mesh with the gears 28, 28 and 29 respectively for rotating the same to cause movement to the arms supporting music sheets for turning the latter in successive order. Said cog gear so is provided on one side with a collar L8 engaged by a forked extremity 49 of a rocking lever 50 the latter pivoted as at 51 to a bearing 52 which latter is pivoted as at 52' to a bracket 52* mounted on the bottom or base plate of the casing and which lever is adapted to raise and lower the gear wheel 4:6 into engagement with the gears 28, 2S and 29 fixed to the shafts carrying the arms supporting the music sheets. To look the rocking lever in its thrown position there is provided a pivotal dog having an extension connected to a rod 55 the latter connected to a spring controlled finger piece 55 pivoted to the shifting lever. This finger piece 55 normally holds the dog in locking engagement with a notched post 56 during the shifting movement of the driving gears. Projecting outwardly from the U-shaped member is an arm 56 carrying a set screw member 57 for locking a manually operable handle 58 in various adjusted positions and which lever is adapted to be actuated by the operator for reversing the gear mechanism by bringing the cog wheel or gear ll into engagement with the cog gear 28 which will reset the arms supporting the music sheets after being turned.

To connect the music sheets to the arms 22, 2 71: and 27 there are provided clips 59. To maintain the shafts 21, 25 and 23 removably connected to the casing there are provided pivotal locking members 0 whereby the said shafts can be easily withdrawn or detached from the casing at the will of the operator.

To prevent the turning of the music sheets supported by the arms 22, 24; and 27 prior to being actuated by the leaf turnii'lg mechanism, there is provided av spring controlled ,awl G1 which latter is pivoted as at (32 to one end of an angular-shaped arm or piece (33 containing a curved slot (l-lcentrally thereof in which works the shaft -l--lupon the shifting of the gear 45 (see Fig. (3) and this angular arm or piece (33 is vertically slidable upon stationary posts or pins (35 so as to permit the said locking pawl (31, to engage the teeth of the gears 28, and 2f) respectively should the shifting lever 50 be actuated to bring the gear 1 A) in the plane of any one of the said gears 28, and 29 to mesh therewith for the subsequent turning of the music sheets.

In operation, presuming that the spring 34: has been wound and that the supporting arms have been swung to the right of 'he axis of rotation of the shafts carrying the same and to these arms are connected the leaves of a music book and it now being desired to successively turn the leaves at predetermined intervals, the operator shifts the arm 56 to the right to disengage the gear ll from the gear 28 and by this gear ll meshing with the gears 36 and 4-5, which latter is fixed to the squared shaft 4%, the same having slidably mounted thereon the gear 46 which at this moment engages the gear so that by the action of the spring All, the said train of gears will rotate this gear 28, turning shaft 21 to the left so as to turn the first leaf of the book of music in the same direction. Now should it be desired to turn the second leaf of the book of music, the operator actnates the finger piece 55 to release the pivotal rocking lever 50 and by pressing downwardly upon the same it is caused to rock upon its pivot 52 and in this manner the gear if) is raised into engagement with the gear 28 and by the action of the spring 3- said gear 28 will turn or rotate the shaft 23, so as to turn the music leaf connected to the supporting arms 24: to the left. lVhen it is desired to turn the last or third leaf of the music book the rocking lever 50, is further depressed to raise the gear to, into engagement with the gear 2t), and in this manner the said last or third leaf is turned to the left upon the rotation of the shaft 25, of the device. When it is necessary to shift the arms to the right the operator shifts the arm 56, to the left, which brings gear etl into mesh with gear 28 and by the action of the spring 34- the shaft 21 will be caused to turn to the right and by the turning of the supporting arms 22 in this direction will effect the simultaneous turning of all of the other arms in the same direction.

that is claimed is- 1. A music leaf turner comprising a plurality of interfitting rotatable shafts, gears fixed to said shafts and arranged in superposed relation to each other, a shiftable train of gearing, means for raising one of said gears of the train into successive engagement with the gears fixed to the shaft, and means for shifting said train of gears to effect alternate meshing of a pair of its gears with one of the shaft gears for re versing the direction of rotation of the shaft.

2. A music leaf turner comprising a plurality of interfitting rotatable shafts, gears fixed to said shafts and arranged in superposed relation to each other, a shiftable train of gearing, means for raising one of said gears of the train into successive engagement With the gears fixed to the shaft, means for shifting said train of gears to effect alternate meshing of a pair of its gears with one of the shaft gears for reversing the direction of rotation of the shaft, and means for driving said train of gearing.

3. A music leaf turner comprising a plurality of interfitting rotatable shafts, gears fixed to said shafts and arranged in superposed relation to each other, a shiftable train of gearing, means for raising one of said gears of the train into successive engagement with the gears fixed to the shaft, means for shifting said train of gears to efiect alternate meshing of a pair of its gears with one of the shaft gears for reversing the direction of rotation of the shaft, and spring wound means for driving said train of gearing.

l. A music leaf turner comprising a plurality of interfitting rotatable shafts, gears fixed to said shafts and arranged in superposed relation to each other, a shiftable train of gearing, means for raising one of said gears of the train into successive engagement i with the gears fixed to the shaft, means for shifting said train of gears to effect alternate meshing of a pair of its gears with one of the shaft gears for reversing the direction of rotation of the shaft, spring wound means for driving said train of gearing, and means for locking said raising means in adjusted position.

5. A music leaf turner comprising a plurality of interfitting rotatable shafts, gears fixed to said shafts and arranged in superposed relation to each other, a shiftable train of gearing, means for raising one of said gears of the train into successive engagement with the gears fixed to the shaft means for shifting said train of gears to effect alternate meshing of a pair of its gears with one of the shaft gears for reversing the direction of rotation of the shaft, spring wound means for driving said train of gearing, means for locking said raising means in adjusted position, and supporting arms projecting from said shaft.

6. A music leaf turner comprising a plurality of interfitting rotatable shafts, gears fixed to said shafts and arranged in superposed relation to each other, a shiftable train of gearing, means for raising one of said gears of the train into successive engagement with the gears fixed to the shaft, means for shifting said train of gears to effect alternate meshing of a pair of its gears with one of the shaft gears for reversing the direction of rotation of the shaft, spring wound means for driving said train of gearing, means for locking said raising means in adjusted position, supporting arms projecting from said shaft, and clip means carried by said sup porting arms.

In testimony whereof, I afiix my signature, in presence of two witnesses.

ROMEO J. TRICE. lVitnesses E. G. BAILEY, JUSTIN CRANE.

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