US1015574A - Sheet-music turner. - Google Patents

Description

P. G. McGOLLAM.

SHEET MUSIC TURNER.

APPLIOATION FILED JULY 25, 1911.

Ilia? I\ 67/ Patented Jan. 23, 1912.

4 SHEETS-SHEET l.

WITNESSES COLUMBIA PLANOGRAPII cu, WASHINGTON,

P. G. McCOLLAM.

SHBETMUSIG TURNER.

APPLICATION FILED JULY 25, 1011.

Patented Jan. 23, 1912.

4 SHEETS-SHEET 2.

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INVENTOR I WITNESSES I wbd h P. G. McCOLLAM. SHEET MUSIC TURNER.

APPLICATION FILED JULY 25, 1911.

WITNESSES P. G. MGCOLLAM.

SHEET MUSIC TURNER. APPLICATION FILED JULY 25, 1911.

4 SHEETSSHEET 4.

Patented Jan. 23, 1912.

INVENTOR /7 WITNESSES TIOHNE Y8 1 PATRICK G. MCCOLLAM, OF EASTON, CONNECTICUT.

SHEET-MUSIC TURNER.

Specification of Letters Patent.

Patented Jan. 23,1912.

Application filed July 25, 1911. Serial No. 640,409.

To all whom it may concern:

Be it known that I, PATRICK Gr. McCon- LAM, a citizen of the United States, and residing at Easton, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Sheet- Music Turners, of which the following is a specification, such as will enable those skilled in the art to which it appertains to make and use the same.

This invention relates to sheet music turners, and the object thereof is to provide an improved device of this class which may be used as an independent support for sheet music either in the form of separate sheets or in book form, or which may be employed in connection with a piano, or organ, or similar musical instrument, and which is preferably adapted to be operated by means of a foot pedal; a further object being to provide a device of the class and for the purpose specified which has a double action whereby sheets or leaves of music may be turned in both, or either, direction by the depression or operation of a pedal or other operating device; and with these and other objects in view, the invention consists in a device of the class and for the purpose specified, constructed and operated as hereinafter described and claimed.

The invention is fully disclosed in the following specification, of which the accompanying drawing forms a part, in which the separate parts of my improvement are designated by suitable reference characters in each of the views, and in which Figure l is a front View of my improved sheet music turner when used as a stand or independent support; Fig. 2 a side view thereof; Fig. 3 a plan view of a cross head which forms a part of the device and contains the operative mechanism, with the cover removed and showing the parts in their normal position; Fig. l a view similar to Fig. 3, but showing the operative parts set for turning three sheets or leaves of music and in the position they assume when one sheet has been turned; Fig. 5 a cross section on the line 55 of Fig. 8 and on an enlarged scale; Fig. 6 a view similar to Figs. 3 and 4, but showing the parts in the position they assume when all three of the sheets or leaves of music have been turned and the parts are in position to reverse; Fig. 7 a view similar to Figs. 3, at and 6, but

showing the parts in the position they assume when set'to turn but one sheet or leaf of music and showing said parts in the position they assume when said sheet or leaf has been turned; Fig. 8 a view similar to Fig. 7, but showing the parts in the position they assume when ready to reverse or turn the first sheet or leaf of music back into its original position; Fig. 9 a partial longitudinal section on the line 99 of Fig. 3 and on an enlarged scale and showing operative movements of some of the parts; Fig. 10 a. transverse section on the line 1010 of Fig. 3 wit-h parts omitted and on an enlarged scale; Fig. 11 a front view of a part of the cross head shown in Fig. 3 and looking in the direction of the arrow X and on an enlarged scale; Fig. 12 a partial longi tudinal section on the line 1212 of Fig. 10; Fig. 13 a partiallongitudinal section on the line 1313 of Fig. 12 and indicating different positions of some of the operative parts, and; Fig. 14 a back view of the central portion of the cross head and showing a bell-crank mounted thereon, said bell-crank being also shown in Figs. 2, 3 and 4.

In the practice of my invention, as shown in the drawings, I provide a support a comprising a tubular standard a and tripod base a of any suitable construction and in which is pivoted a pedal lever a and mounted in the tubular standard a is a telescopic rod a on which the cross head 61" of the device is mounted and said tubular standard a is provided at the top thereof with a set screw a whereby the said cross head may be adjusted to any desired height, and mounted on the back of the cross head a and approximately centrally thereof is an operating bell-crank a one arm of which is connected with the pedal lever a by a rod a.

Mounted on the top or cover of the cross head is a music rack a the base portion of which is formed by said cross head and secured to the top or cover of said cross head are spring fingers a which bear on the music rack when the music is not in position, and these spring fingers are designed to hold the back covers or back sheets of the music or music leaves while the inner sheets or leaves are being turned.

The cross head a is box-shaped in form and in the front top portion thereof is a longitudinal slot a and in the left hand end portion thereof is a segmental slot 0: the

under side of which is provided with a plurality of notches or recesses a as shown in Fig. -11 and which are preferably three in number.

Placed centrally in the cross head and on the bottom thereof is a plate I) provided with a central stud b and the front portion of said plate is provided with parallel grooves 72 forming corresponding ribs 6*, and movable longitudinally on the plate 6 is a yoke 0 having parallel arms 0 and 0 and the arms 0 and 0 are provided on their inner faces with gear teeth 0 and the front arm 0 is of much greater vertical depth than the back arm 0* as clearly shown in Fig. 10.

The cross head 0 of the sliding yoke c is provided with an arm 0 which extends to the left and with which is connected a rod 0 which extends to the right and is provided with an outwardly directed finger c which passes through a slot at in the back of the cross head and with which is connected a link 0 which is connected with the bell-crank a at the back of the cross head.

Mounted on the stud b is a sleeve cl on which is mounted another sleeve 6 on which is mounted another sleeve f and the sleeve (Z is provided at its lower end with a forwardly directed segmental gear (Z and at the top thereof with a disk-shaped head (1 while the sleeve 6 is provided at the bottom thereof with a forwardly directed segmental gear 6 and the top thereof with a diskshaped head 6 while the sleeve f is provided at the bottom thereof with a forwardly directed segmental gear f and at the top thereof with a disk-shaped head f and the segmental gears (Z 6 and f operate in connection with the arm 0 of the yoke 0 and the gear f is also adapted to operate in connection with the arm 0 of the yoke 0 in the reverse operation as hereinafter clescribed, and said gears (Z 6 and f are differential gears, the diameters thereof in creasing from the bottom gear (Z upwardly.

Pivoted in the left hand end of the cross head is a bell crank lever g with the shorter arm of which is connected a link 9 and with the longer arm of which are connected links 9 and g and connected with the link 9 is a spring bar 9 I also provide a yoke-shaped spring it one arm of which is connected with the link 9 and the other arm of which is passed around a screw b and secured by a staple 7L3.

Rotatably mounted in a standard bearing 2' is a double crank lever i one arm of which is provided with a ringh-angled handle member i which passes through the slot a in the front of the cross head and the other arm of which is provided with a backwardly directed eye 71 through which the link 9 passes, and secured to the bottom of the cross head is a guard 2' in connection with which the link 9 operates as hereinafter described.

Pivotally connected with the gear f at f* is a sliding rod f which extends to the left and is provided with a downwardly directed finger f and pivotally connected with the gear 6 at e is a sliding rod 6 which is directly under the rod and which is provided at its end with an upwardly directed finger c and the fingers f and e of the rods f and e operate in connection with an eye g in the end of the link g and the rods f and e are movable through guides f and e and the rod 6 rests on a block or support a to render its operation as hereinafter described, more positive and secure.

In order to prevent the spring bar g from moving longitudinally in the operation of the apparatus an anchor link j is connected therewith at j and secured to the bottom of the cross head at j and connected with the bar at 7' is a transverse shift bar j having a downwardly directed U-shaped member j through which the arm 0 of the yoke 0 passes and the forwardly directed free end j of the shift bar 7' passes through a guide j and on the side of said guide opposite the yoke a is a transverse keeper j through which the arm 0 of the yoke 0 moves longitudinally and laterally and the arm 0 of the yoke 0 also passes through another keeper j.

The outward movement of the bell-crank g is limited by a stop pin and the inner end of the spring bar 9 is provided with a pivoted link 70 which is connected with the lower part of the sleeve (Z as shown at 70 and the right hand end of the rod 0 is connected with a spiral spring 70 which is connected with the cross head a at 70 and which holds said rod and the yoke c and other operative parts connected therewith in their normal position.

Secured in the right hand end of the cross head are three spiral springs m, n and 0 having backwardly directed spring arms m n and 0 and connected with the spring arm m is a rod m and connected with the spring arm n is a rod 12 and connected with the spring arm 0 is a rod 0 and these rods m n and 0 are connected with the lower ends of the sleeves cl, 6 and f opposite the gears (Z 6 and f as shown at m a and 0 in Figs. 9. and 10.

The disk-shaped the sleeves cl, 6 and f on the stud b are provided, respectively with arms 7), p and p and said arms 7), p and p are given a quarter turn as shown so as to place them in a vertical plane, while the disk-shaped heads (Z 6 and f of the sleeves cl, 6 and f are in horizontal planes, and the arms 1), p and 20 are also provided at their heads (Z and f of i free ends with clips 79 which are preferably U-shaped in form and into which the bottom edges of the music sheets or leaves are passed.

The bottom of the arm 0 of the yoke c is provided at its front edge with a clownwarclly directed blade 1" which operates in connection with the ribs and in the grooves b in the plate I), and the left hand end of the arm 0 is cut out to form a recess 7- as shown in Fig. 12.

The operation of my improved sheet music turner will be readily understood from the foregoing description when taken in connection with the accompanying drawings and the following statement thereof.

The normal position of the operative parts is shown in Fig. l, and in this position the spring bar 9 is exerting a backward pull on the shift bar 7' and this pull serves to keep the teeth 0 of the front arm 0 of the yoke c in engagement with the segmental gear F. In the operation of the device the musician or operator first determines the number of sheets it will be necessary to turn to read a piece of music and for the purpose of this description we will take two conditions, one in which it is necessary to turn but one sheet and one in which it is necessary to turn three sheets, the operation under the other condition in which two sheets are turned will be readily understood when the operation under the two first mentioned conditions are described. lVe will now take the first mentioned condition and assume that the sheet music has been placed in position as shown in Fig. 1 with the clip 7) of the arm 70 engaging the lower outer corner of the single sheet to be turned, the double crank lever 2' is first adjusted by means of the handle member 2' so that said handle member will rest in the left hand notch (1 or that notch over which is shown the numeral 1. This movement of the double crank lever 2' causes the eye 9 of the link 9 to engage the downwardly directed finger f of the slide rod f as shown in dotted lines in Fig. 9. The pedal lever a is then clepressed by the foot of the musician or oper ator to operate the bell crank lever a which pulls the rod 0 to the left drawing the arm 0 and yoke 0 also to the left as clearly shown in Fig. 7, and the gear f is thus given a partial turn on the stud b and by reason of its connection with the arm 72 through the sleeve 7, said arm is also given a partial turn to the left. It will be understood that the springs m, a and 0 normally exert a thrust action on the connections at m n and 0 to hold the arms 39, p and p in the position shown in Fig. 3, and when the operation just described is taking place, and during the first quarter turn of the segmental gear f and arm 72 the action is against the thrust action of the spring 0, but as the connection 0 passes around to the right of the stud Z1 and beyond a dead center, the action of the spring 0 is to throw the segmental gear f and arm 79 to the left after the teeth a of the arm 0 have ceased to engage, as clearly shown in Fig. 7. As the segmental gear f is turned, it draws the slide bar 7' to the right by reason of its connection with the segmental gear f at f and this operation draws the link 9 also to the right and rocks the bell crank lever g on its pivot to draw the left end of the spring bar 9 forwardly through the instrumentality of the link g and this operation places a forward thrust action on the shift bar j against the arm 0 of the yoke 0. During the above described movements the blade 1" is moved to the left through the front groove 6 and the engagement of the blade r with the front rib b prevents the spring bar 9 from throwing the arm 0 and yoke c forwardly, until the foot of the operator or musician has been removed from the pedal lever a when the spring 76 will act to draw the bar 0 arm c and yoke c to the right, the forward thrust action of the spring bar 9 still being maintained, and when the yoke 0 has traveled to the right for a predetermined distance the blade 1, rides out of the forward groove Z2 and ceases to engage the forward rib b when the thrust action of the spring bar 9 will throw the yoke c forwardly causing the teeth 0 of the arm 0 of the yoke c to engage the segmental gear f as clearly shown in Fig. 8. Another depression of the pedal lever a will now operate to throw the operative elements back to the normal position as shown in Fig. 8, as will be readily understood. Then it is desired to turn three sheets of music and reverse, the handle member 2' of the double crank lever 2' is adjusted in the slot (4 so as to cause said handle member to engage the central notch over which is shown the numeral 3, and this position of the double crank lever sustains the eye 9 of the link 9 in a neutral position or in a posit-ion between the fingers e. and f, so that there is no engagement. When the musician or operator depresses the pedal lever a the arm 12 is thrown to the left as shown in Fig. 4, and by reason of the backward pulling action of the spring bar on the shift bar j the teeth 0 of the arm 0 of the yoke 0 will engage the gear 6 when the yoke c has been drawn to the right by the spring Another depression of the pedal lever a will turn the gear 6 and arm 79 to the left and when the spring 76* returns the yoke c to the right again the teeth 0 of the arm 0 will engage the segmental gear (Z and the pedal lever is then depressed to throw the segmental gear (Z and arm ;0 to the left and in this latter operation the link is" pivoted to the sleeve (Z is drawn forward as shown in Fig. 6, and draws the right end of the spring bar 9 forwardly, and this operation places a forward thrust action on the shift bar j, so that when the yoke 0 has again been returned to the right by the spring so that the blade r and ribs If disengage, the yoke 0, will be forced forwardly as shown in Fig. 6, so that the teeth of the arm 0 engage the gear f when another depression of the pedal lever (0* will cause the arms 9, p and p to be returned to their normal position as shown in Fig. 3.

It will be understood that my invention is not limited to the method of supporting the cross head a herein shown and described, and said cross head may be built into or connected with a piano, organ, or similar musical instrument, and other means may be provided for operating the lever (0 and other changes in and modifications of the construction herein shown and described may be made, within the scope of the appended claims, without departing from the spirit of my invention or sacrificing its advantages.

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

1. The combination in a sheet music turner of a stud and a plurality of sleeves concentrically mounted thereon, each of said sleeves being provided at its upper end with a turning arm and each of said sleeves being-provided at its lower end and on the same side thereof with a segmental gear, said gears being arranged one above another and increasing in diameter from the bottom gear upwardly, a longitudinally and laterally movable yoke inclosing said stud, said sleeves and said gears and the side arms of which are provided on their inner sides with teeth adapted to operate in connection with said gears, and means for operating said yoke and to turn said sleeves and arms.

2. The combination in a sheet music turner of a stud and a plurality of sleeves concentrically mounted thereon, each of said sleeves being provided at its upper end with a turning arm and each of said sleeves being also providedat its lower end and on the same side thereof with a segmental gear, said gears being of different diameters, a yoke-shaped device inclosing said stud, sleeves and gears and the side arms of which are provided with gear teeth on their inner sides, and means for operating said yokeshaped device so as to turn said gears, sleeves and arms substantially as shown and described.

3. The combination of a sheet music turner of a stud, and a plurality of sleeves concentrically mounted thereon, said sleeves being provided at their upper ends with turning arms and at their lower ends with spring arm connections adapted to hold the turning arms in a predetermined position, said sleeves being also provided on one side thereof with segmental gears of different diameters, a longitudinally and laterally movable yoke-shaped device inclosing said stud, sleeves and gears, and means for operating said yoke-shaped device so as to operate said gears, sleeves and arms.

4:. In a sheet music turner, a stud, a plurality of sleeves concentrically mounted thereon and provided at their upper ends with turning arms and at their lower ends with spring arm connections adapted to hold aid turning arms in a predetermined position, said sleeves being also provided on one side thereof with segmental gears of different diameters, a longitudinally and laterally movable yoke-shaped device inclosing said stud, sleeves and gears and the side arms of which are provided on their inner sides with teeth adapted to engage said gears, means for operating said yokeshaped device, a tension device for exerting pressure on one side thereof, and a series of switches arranged to change the direction of the operation of said tension device at predetermined times.

5. In a sheet music turner, a stud, a plurality of sleeves concentrically mounted thereon, said sleeves being provided at the tops thereof with turning arms and at the bottoms thereof with spring arm connections adapted to hold said turning arms in a predetermined position, said sleeves being also provided on one side thereof with segmental gears of different diameters, a longitudinally and laterally movable yoke-shaped rack device inclosing said stud, sleeves and gears and adapted to operate in connection with said gears in either direction of its longitudinal movement, and means for operating said rack device, one side of said rack device being also provided on the bottom thereof with a blade adapted to operate in grooves formed in a plate placed beneath said gears to control itslateral movement.

In testimony that I claim the foregoing as my invention I have signed my name in presence of the subscribing witnesses this 22d day of July 1911.

PATRICK G. McCOLLAM.

\Vitnesses H. A. OLIPHANT, MAMIE SOLEN.

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

Washington, D. G.

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