US569399A - Leaf-turner - Google Patents

Description

(No' Model.) 2 sheath-sheet 1-1 B. L. B'ADGLEY.

' LEAP TURNER.

No. 569,399. Pateted 091;. 13, 1996.

(No Modem 2 Sheets-Sheet 2.

- E.' LBADGLEY.

LEAP TURNER.

No 569,399. PatentedOct. 13, 1896.

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UNITED STATES PATENT OFFICE.

EDIVIN L. BADGLEY, OF CLAYTON, ILLINOIS, ASSIGNOR OF TlVO-THIRDS TO ORION E. BRYANT AND ELMER E. SMITH, OF SAME PLACE, AND GEORGE B. ODER, OF SPRINGFIELD, ILLINOIS.

LEAF-TU RN ER.

SPECIFICATION forming part of Letters Patent No. 569,399, dated October 13, 1896.

Application filed May 13, 1895. Renewed August 6, 1896. Serial No. 601,926. (No-model.)

- tion.

My invention relates to music-leaf turners, and has for its object to provide a simple and inexpensive device adapted for attachment to a music-rack and designed for operation by foot or other power, the spring actuated turl'iing-arins being secured in a clamp, from which they are released successively as it is desired to turn the pages.

Further objects and advantages of this invention will appear in the following description, and the novel features thereof will be particularly pointed out in the appended claims.

In the drawings, Figure 1 is a perspective view of a device embodying my invention, showing the parts arranged in operative posit-ions. Fig. 2 is a rear view of the same. Fig. 3 is a vertical section taken centrally to show the disposition of the torsion-sprin gs for operating the turning-arms, the holding-arm being released. Fig. 4 is a side view, partly in section, to show the releasing device. Fig. 5 is a partial bottom plan View to show the means for securing the holding-arm in its operative position. Fig. 6 is a detail view in perspective of the clamp with the springtongue partly broken away. Fig. 7 is a detail transverse section of the central portion of the rack to illustrate the manner of seating the torsion-springs.

Similar numerals of reference indicate corresponding parts in all the figures of the drawings.

The rack 1 may be of any preferred construction and provided at its center with a casing 2, consisting of a bar provided with a plurality of sheaths 3, which may be bored or otherwise constructed, for the reception of torsion-springs 4, said springs extending to the lower end of the casing and being secured by means of solder or other suitable device. The springs at their upper extremities carry the turningarms 5, which are extended horizontally to terminate near the ends of the rack. These turning-arms carry clips 6, havin g spring-jaws and preferably, as illustrated in the drawings, each constructed of a single blank of spring sheet metal provided upon each jaw with an ear 7, forming a finger-hold, whereby the jaws may be separated sufiiciently to engage a leaf.

When the turning-arms are extended toward the right-hand end of therack in position to .turn the leaves as required by the performer, they are engaged and held in position by means of a clamp 8, having a springtongue 9, terminating in a shoulder 10, said shoulder beinglocated beyond and contiguous 6 5 to the extremity of a parallel-sided pocket 11, formed by parallel upper and lower jaws 12. The spring-tongue terminates beyond the extremities of the jaws in a finger-hold 13, by which the spring maybe elevated by hand and which is flared upwardly toward its extremity to provide, in connection with the beveled extremity of the lower jaw, a guide for facilitating the introduction of the extremities of the turning-arms into the clamp.

Operating in connection with the clamp is a vertical trip-rod lt, having a reduced extremity or pin 15 at its upper end, which operates in a perforation 16 in the lower jaw and is adapted to extend at its upper end into a notch 17 in the upper jaw, said reduced extremity or pin being set back from the shoulder of the spring-tongue a distance sufficient to allow a single turning-arm to lie between the pin and the shoulder. The upper extremity of this pin at the upper end of the trip-rod is adapted to bear against the under surface of the spring-tongue and elevate it sufficiently to release the turning-arm which is between the pin and the shoulder.

Any suitable means for operating the triprod to release the turning-arms successively may be employed, but in'the construction illustrated in the drawings a rock-shaft 18 is mounted in bearings 19 on the rear side of the rack and is provided at its outer extremity with a crank-arm 20, pivotally connected "to the lower end of the trip-rod, and at its inner end, contiguous to the center of the rack, with a second crank-arm 21, to which is attached the upper end of a connection 22 extending to a foot-treadle. (Not shown.) The parts are held in their normal positions by means of a spring 23., attached to the inner crank-arm of the rock-shaft.

A book or sheet is secured at its center to the rack by means of the holdingarm 2-1, hinged at its upper end to the rack, as shown at 25, and so constructed as to bow rearwardly toward its center, and the lower end of said holding-arm is secured in operative position by means of a pivotal catch 26, mounted upon the lower bar of the rack. This catch 26 is preferably pivoted to the under side of a supporting-ledge 26 at the bottom of the rack and contiguous to a slot 20'", formed in said ledge, said slot being adapted to receive the extremity of the holding-arm 21 to prevent lateral vibration and displacement. The rearward bowing of the center of the holding-arm causes it to press firmly against the book or sheet and thus hold it firmly in position at its center, a longitudiuallygrooved plate 2' being arranged centrally on the rack to form a seat into which the rear surface of the sheet of music is forced by the holding-arm.

From the above description it will be seen that when the extremities of the turning-arms are arranged in the clamp their extremities are disposed in a common plane determined by the plane of the slot between the jaws, the foremost arm bearing against the inner or rear surface of the shoulder formed by the spring-tongue. \Vhen it is desired to turn a leaf, the rock-shaft is operated by the means provided for that purpose to force the triprod upward into the clamp, and the reduced upper extremity or pin thereof, the same being tapered or pointed at its upper extremity, as shown in Fig. 4L, passes between the fore most turning-arm and the adjacent turningarm, thereby separating said turning-arms and holding the second turning-arm in the clamp while the spring-tongue is elevated by the movement of the trip-rod to release the foremost. After the release of the foremost turning-arm and the subsequent depression of the trip-rod the turning-arm which before was second is now forced forward by its actuating-spring into contact with the shoulder of the spring-tongue and becomes the foremost turning-arm, the other turning-arms also moving forward in the order which they previously occupied. Thus the trip-rod serves to separate the foremost from the adjacent turning-arn'l and releases only that arm which is in contact with the shoulder of the springtongue.

\Vhile I have shown and described my improved music-turner as applied to an orchestra stand or rack, it is obvious that it may be used in connection with a piano, organ, or other instrument, the changes necessary to adapt the turner to a piano being a matter olf mechanical skill and therefore immaterial so far as my invention is concerned.

Various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of this invention.

Having described my invention, what I claim is-- 1. Ina device of the class described, the combination with a rack, of spring-actuated turning-arms provided with means for engaging leaves, a clamp having parallel jaws between which the extremities of the turningarms may be arranged and held in a common plane, and a spring-tongue arranged in operative relation with the jaws and provided with a shoulder to close the front end of the opening or slot between the jaws, said jaws being provided with registering perforations spaced from the shoulder of the spring-tongue a distance approximately equal to the thickness of a turning-arm, a trip-rod having a pin adapted to operate in said perforations of the jaws and having a tapered or pointed extremity adapted. to pass between the foremost turning-arm and the adjacent turning-arm and also adapted to engage and repress the s )ringtongue, and means for operating the trip-rod, substantially as specified.

2. In a device of the class described, the combination with a rack, and spring-actuated turning-arms mounted thereon and provided with means for engaging leaves, of a clamp having jaws betweemwhich the free ends of the turning-arms maybe arranged, a springtongue for temporarily holding the turningarms in place between the jaws, a rock-shaft mounted horizontally in rear of and parallel with the rack and terminating at one end adjacent to the center of the rack in a rearwardly-extending erankarm, and at the other end in a forwardly-extending crank-arm, a trip-rod pivotally connected at its lower end to said forwardly-extending crank-arm and provided with a reduced upper extremity litting in guide -openings in the jaws of the clamp, and a retracting-spring connected to said rearwardly-extending arm of the rock shaft to normally hold the trip-rod out of engagement with said springtongue, the rear- IIO

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