US732496A - Music-leaf turner. - Google Patents

Description

No. 732,496. PATENTED JUNE 30, 1903. E. ALLISON.

MUSIC LEAF TURNER.

APPLICATION FILED APB. 16, 1903.

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PATENTED JUNE 30, 1903.

No. 732,496. y

E. ALLIsorL MUSIC LEAP TURNER.

APPMGA'IIOBv FILED APB. 16, 1903. l 'R0 IODBL. 2 SHEETS-SHEET 2.

UNITED STATES Patented J' une 30, 1903.

PATENT EEICE.

MUSIC-LEAF TURNER.

SPECIFICATION forming part of Letters Patent No. 732,496, dated June 30, 1903.

Application filed April 16, 1903. Serial No. 152,902. (No model.)

To all whom t may concern:

Be it known that I, EPHRAIM ALLIsoN, a citizen of the United States of America, residing at Charleroi, in the county of Vashingtonl and State of Pennsylvania, have invented certain new and useful Improvements in Music-Leaf Turners, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in music-leaf turners; and the primary object of the invention is to construct a device adapted to be placed in position on a piano, organ, or other like instrument and by means of which the di'derent sheets of a piece of music may be rapidly, easily, and advantageously turned into proper position for the performer.

A further object of the invention is to construct a device of this character with two sets 0f keys, one for turning the sheets of music in one direction and the other for turning the sheets of music in the opposite direction, both sets of keys being so positioned as to be readily engaged by the performer.v

Brietiy described, the invention comprises a plurality of vertically-disposed rods,which are provided at their upper ends with means for clasping thesheets of music, and at their lower ends the different rods are mounted in stepped disks, which are rotatably supported on a journal shaft or pin. These disks are rotatable independently of each other and have eccentrically connected thereto two le-` vers which connect, respectively, at their outer ends to bell-cranks pivotally mounted on j ournal-pins, and these bell-cranks are connected by links to horizontally-disposed levers, which latter are in turn connected by links to one end of the operating-keys. The operating-keys project through the front of the casing inclosing the mechanism, and when the device is in position these operating-keys lie in proper position upon the piano or other keyboard, whereby they may be readily engaged. The mechanism is inclosed within a suitable casing or stand adapted to be supported by the piano frame or casing.

In describing the invention in detail reference is had to the accompanying drawings, forming a part of this specification, and wherein like numerals of reference indicate like parts throughout the several Views, in Which- Figure lis a front elevation of my improved music-turner. Fig. 2 is a rear elevation of the same. Fig. 3 is a detached detail perspective View of the bracket for supporting the throwing-rods at their upper ends. Fig. 4 isa detached detail perspective view of the mechanism, partly broken away. Fig. 5 is a detached detail perspective View of one of the clamps carried by the throwing-rods. Fig. 6 is a detached detail perspective view of a part of one of the key-levers, the connecting-link, and horizontal bar. Fig. 7 is a transverse vertical sectional view of the device. Fig. 8 is a detail plan view of one ofthe bell-cranks.

To put my invention into practice, I provide a suitable frame or casing for the mechanism, and which frame or casing also forms asupport for the sheets of music. This frame or support embodies the end pieces or standards 1, top bars 2 3, and intermediate restbars 4. for the music, anda front bottom board 5, together with a base-board 6, which rests upon brackets or lugs 7, secured to the inner faces of the standards or end pieces 1. VThe operating mechanism is supported on the base-board 6, and this operating mechanism comprises a plurality of rotatable disks, a plurality of horizontally-mounted levers, and a plurality of pivoted bell-cranks, these elements being connected together, as seen in Fig. 6 of the drawings. Mounted on the journal-pin 8, secured in the base-board 7 approximately centrally of its length or back of the central line of its width, are a plurality of disks 9 10 Il of differential diameters and disposed one above the other on the journalpin 0r Vertical shaft 8, with washers or bushings 12 interposed between vthe said stepped disks whereby to separate the same a suitable distance apart. Also mounted in the base 6 at opposite sides of the stepped disks are journal-pins 14 15, respectively, and on the journal-pin 14 is mounted a pluralityof bellcranks 16, disposed one above the other and suitably spaced apart by means of washers or bosses placed between the same on the said journal-pin 14. On the journal-pin 15 is similarly mounted a plurality of bell-cranks 17, these bell-cranks 17 and also bell-cranks 16 having one of their arms of somewhat greater IOO vof the music.

length than the other arm of said crank. The long arm of the crank 17 is connected bylinks 18, 18', 13" with the disks 9 10 1l, respectively, While the long arm ot the' bell-crank 16 is likewise connected to the disks 9 10 11 by links 19 19 19", respectively. These links 18, 18', and 18"and 19 19' 19" are eccentrically connected to the respective disks, being attached near the edge thereon and being suitably curved, whereby to allow their throw occasioned by the rotation of the rotatable disks to which they are attached. The shorter arms of the bell-cranks 16 are connected by links 2O with horizontally-disposed levers 2l, 22, and 23, respectively, these levers being mounted at their opposite ends on the journal-pin 24, carried by the base-board 6. The shorterarm of the bell-crank 17is connected by links 25 with the outer ends of horizontallydisposed levers 26 27 2S, which are disposedin alinement with levers 21,22,and 23 and at their inner ends are pivoted on a journal-pin 29. These horizontally-disposed' levers are suitably spaced apart by means of washers or hoses placed on the pins 24 and 29 between the levers. The base-board 6 carries lugs orbrackets 30,and in these lugs orbrackets isjournaled an operating-shaft 31, on which is pivotally mounted operating-keys 21' 22' 23 and 26 27 28'. These operating keys or levers are of the bell-crank form, the shorter arms thereof extending through slots 32, provided therefor in the base-board 6, and being connected bylinks 33 with the respective levers 2l 22 23 and 26 27 28, the longer arm of the levers extending through and operating in slots 24 in the front board 5. The disks 9 10 11 each carry vertically-disposed rods, these rods 35 36 37 each having a right-angular bend 3S intermediate their upper and lower ends whereby to permit their being rotated independent of each other. At their upper ends these rods carry arms 39, which may be a part of the rods or may be suitably secured thereto, and each arm 39 at its outer end carries a suitable catch 40 for engagement with the dierent sheets 41 The rods 35 36 37 at their upper ends extend through the bracket 42, carried by the top cross-bars of the frame, this bracket having an opening for each of the rods. On the end bars or pieces l of the frame or casinglprovide clips 43, under which the edges of the sheets may be engaged in order to hold the same in the iat or opened position; but these are adapted to permit the music to readily pass out from under the samewhen one of the keys is actuated, whereby to operate the throwing-rods. The mechanism embodying the disks, bell-cranks, and connecting-levers is covered by a rest-board 44, upon which the lower ends of the sheets of music rest.

The mechanism is placed upon the board 44, and the respective catches 40 engage one with each sheet of music. As the arms 39 are disposed one above the other, whereby they can be actuated without interference, it

will be observed that each sheet of music may be turned independently of the others. The keys 26', 27', and 2S' are used to turn the music in one direction, and keys 21', 22', and 23' are employed for turning the sheets in the opposite direction. For illustration, assume key 23'is depressed. It will, through its connection with the upper bell-crank 16 and lever 19, connecting with disk 11, rotate this disk so as to revolve rod 35 and cause the same to be thrown over to the opposite position from that shown. The rotating of disk 11 operates lever 1S and the upper bell-crank 17 and also horizontal lever 26 and keys 26', elevating the latter as the key or lever 23 is depressed. are elevated the keys 26' 27 28 will be in the lowered or depressed position, and vice versa.

It will of course be understood that 'while I have shown but three operating keys or levers, and consequently but three of the throwing-rods, yet any number of these desired may be employed, and it will also be noted in the practice of the invention that various changes may be made in the details of construction without departing from the general spirit of my invention.

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

l. In a music-leaf turner, the combination with a frame having a base-board, of a journal-pin mounted in said base-board, a plurality of disks disposed on said journal-pin one above the other for rotation independently, a pair of links connected to each of said disks, a pair of journal-pins mounted on the base-board at opposite sides of the irst-mentioned journal-pin, a plurality of bell-cranks disposed on said journal-pins one above the other and pivoted to said links, a plurality of horizontally-disposed levers eachpivoted at their one end,links connecting said horizontal levers to the bell-cranks, an operating-shaft supported from the base-board, two sets of keys mounted on said shafts, links connecting said keys to the horizontal levers, and a throwing-rod connected to each of the disks and provided with means for engaging the leaves of the music to be turned, substantially as described.

2. In a music-leaf turner, the combination of a plurality of rotatably-mounted stepped disks, a throwing-rod carried by each of the disks and provided with means for engagement with the sheets of the music to be turned, two sets of pivotally-mounted bell-cranks, links pivotally connected to said bell-cranks and to the disks, two sets of horizontallymounted levers pivotally connected to the two sets of bell-cranks, and two sets of operating-levers pivotally connected to said horizontally-mounted levers, substantially as described. v

3. In a music-leaf turner, a plurality of independently-rotatable disks mounted one above the other, throwing-rods carried by Thus when the keys 21'22'23'.

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said disks, means carried by said rods for sel levers, and pivotal connections between the curing the same to the differentleaves of the operating-levers and the horizontal levers, music to be turned, two sets of bell-cranks substantially as described. y pivotally mounted, the bell-cranks of each In testimony whereof I afx my signature 5 set disposed one above the other, links pivotin the presence of two witnesses.

ally connected to said bell-cranks and to the different disks, two sets of horizontally-dis EPHRAIM ALLISON' posed levers, an operating-shaft, two sets of Witnesses: keys mounted onl said shafts, links oonneot- J. A. HART, xo ing the diierent sets of bell-cranks to said GILBERT UPTEGRAFT.

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