US823708A - Music holder and turner. - Google Patents

Description

No. 823,708. PATENTED JUNE 19, 1906. E. S. STEM.

MUSIC HOLDER AND TURNER.v

APPLICATION FILED Nov.11, 1905.

NITET) STATES PATENT OFFICE.

EDGAR S. STEM, OF ALDERSON, PENNSYLVANIA, ASSIGNOR OF TIVO- FIFTHS TO THOMAS S. BOYD, OF ALDERSON, PENNSYLVANIA.

MUSIC HOLDER AND TURNER.

Specification of Letters Patent.

Patented June 19, 1906.

Application filed November 11, 1905. Serial No. 286,824.

To a/ZZ whom it may concern:

Be it known that I, EDGAR S. STEM, a citizen of the United States, residing at Alderson, county of Luzerne, State of Pennsylvania, have invented a new and useful Music Holder and Turner, of which the following is a speciiication.

This invention relates to music-leaf turners, and has particular reference to that type of such devices which employ leaf-turning arms having springs for actuating them in their leaf-turning movements and manuallycontrolled devices for releasing said arms one by one to permit them to turn the leaves to which they are temporarily connected.

One of the objects of my present invention is to provide an improved escapement or detent and release mechanism for controlling the movements of the arms.

Another object of the invention is to provide an improved folding. leaf-carrying arm that will be reliable in operation and certain to remain in its angular position when adjusted to hold a leaf.

To these ends the invention consists in the construction and combination of parts, substantially as hereinafter described and claimed.

Of the accompanying drawings, Figure l is a plan view of so much of a music-leaf turner embodying my invention as is necessary to illustrate the improvements herein claimed, the top of the case being removed. Fig. 2 is a front elevation of the same, the case being in section. Fig. 3 is a detail elevation of the escapement devices as seen from the inside of the case indicated in Figs. 1 and 2. Fig. 4 is a perspectiveview of the same. Fig. 5 is a detail elevation of the jointed portions of one of the leaf-turning arms, the outer member of the arms being turned up in the position which it occupies when engaged with a leaf. Fig. 6 represents a section on line 7 7 of Fig. 5.

Similar reference characters indicate the same or similar parts in all the views.

A portion of the base of the device is represented at 20, said base being adapted to rest on the book or music rest of a piano, as usual with such devices. In practice a holder, clamp, or back-rest for the music book or sheets rises from the said base and may be of a folding type, if desired, to render the device more readily portable. Such holder or I clamp is not illustrated or described herein, as it is not necessary to an understanding of the improvements now claimed.

Suitably secured to the base is a case 2l, preferably having a curved front, as indicated in Fig. l, said case having a slot 22, through which the leaf-turners extend and which slot serves as a guide to insure movement of said turners in a horizontal plane. A post 23 is secured in the center of the ease, and to this post is secured the inner ends of the springs of the leaf-turners. Said leaf-turners each comprise an inner member 24 and an outer member 25, Ointed thereto, as presently described. The spring 26 is shown as integral with the inner member 24, the whole being composed of a length of resilient wire. I do not limit myself, however, to this construction. The outer member 25 is also shown as consisting of a single piece of wire. It is doubled upon itself to form an elongated loop 27 and is then twisted and its outer ends left straight to form fingers 28, between which a leaf is inserted and held. The two members are connected by a clip 29, consisting of a piece of sheet metal having two parallelears 30, united by a rivet 31, passing through the loop 27 and having a portion bent around the end of member 24. The extreme end of the member 24 is bent at an angle, as at 32, and in assembling is passed through a hole in the clip before the sides are bent around the wire, thereby preventing the clip from turning on the member 24. Therefore when the parts are in the position indicated in Fig. 5 the member 25 will be in position to swing or turn a leaf. The clip 29 is formed with a slot 33 to receive the lower end of the loop 27 when the member 25 is in upright position to prevent said member from turning down but when it is desired to fold said outer member 25 it is first slightly lifted to clear the lower end of the loop 27 from the slot 33, and then said member may be turned either outward or inward parallel with the member 24.

The escapement device illustrated in Figs. 1 to 4, inclusive, comprises the following parts: A lever 34 is pivoted at 35 to an ear 36, secured to the outer wall of the case 2l, and extends through a vertical slot 37, adjacent the slot 22 and below it. Said lever is formed with an ear 38, extending upward sufficiently to act as a detent for the leaf- IOO turners in the manner presently described when the lever is actuated. The portion of the lever inside the case is formed with a laterally-extending arm 39, which engages under a lug 40 of a dog 41, pivoted at 42 inside the case and having a portion which extends upward across the slot 22 and normally held by a spring 43 across the path of the leafturning arms which are guided by said slot. The said dog 41 is sufficiently inclined, as at 44, to cause an arm 24 when being returned to starting position to oscillate the dog on its pivot and permit said arm to Hass, after which the spring 43 automatica y returns the dog to the position shown in Fig. 3. As the detent 38 1s normally depressed all the arms 24 can pass to starting position, Where they will be held by said dog. The spring 43 is coiled about the fixed pivot pin or screw 42 and has one end bearing on the lug 40 of the dog and its other end bearing on the lever 34, adjacent to the detent-ear 38 thereof, thereby tending to normally hold the detent down and the engaging or retaining wall ofthe dog up across the slot 22. The portion of the spring which bears on the lever 34 is not a necessity, however, since any spring-pressure exerted on the lug 40 ofthe dog will be transmitted to the arm 39 of the lever, so as to normally hold the detent 38 down. When the lever 34 is positively actuated by depressing its outer end, the detent 38 is raised, so as to be interposed between the outermost arm 24 and the next one, and at the same time the dog 41 is positively oscillated to release the outermost arm and permit it to be swung around by its s ring 26 and turn the leaf which is engaged getween the ingers 28 thereof.

Suitable means are employed to limit the movements of the lever 34, such as the ends ofthe slot 45 in the ear 36, through which slot the lever extends, as indicated in Fig. 4.

Owing to the fact that the lever 34 extends through the case substantially at a right angle thereto and below the guideway or slot 22, the upwardly-extending ear or detent 38 is adapted to be quickly raised, so as to be interposed between the arm and to hold them by a conveniently-located finger piece or key outside of the case in position to be instantly depressed when desired, so as to release an arm. Such a finger piece or key is indicated at 46 and may comprise a late or bar extending over the outer end of t e lever 34 and pivoted to the base at 47.

The detent and the dog each has its own independent pivot, so that the pressure of the outermost arm will be borne by the pivot of the dog, and the pressure of the next arm or arms will be borne solely by the lever.

The spring 43 is coiled about the ivot 42 and has one end bearing down upon t e inner end of the lever 34 and the other end bearing down upon the lug 40 of the dog 41. Therethe slot 22.

fore said s ring acts not only to normally raise the ot er end of the dog 41, but also acts to depress the detent 38; but when the key 46 is depressed, the relative positions of the detent and dog will be reversed-that is the detent will be raised and the dog will be depressed.

The means for returning the arms to starting position comprise a pinion 48, mounted on the post 23 and having an arm 49, provided with an upturned end 50, projecting above (See Fig. 2.) A returning-lever 51, pivoted at 52 to the case and having a Enger-piece 53, is formed with a segmentgear 54, meshing with the pinion 48. It will now be readily understood that when the lever 51 is actuated in the direction shown by the arrow in Fig. 1 the pinion 48 and the arm 49 will be moved in opposite direction, so that the end 50 of the arm 49 will swing the turning-arms 24 around to the right.

1 Having now described my invention, I claim- 1. A device of the character described, comprising a plurality of spring-actuated arms, a case having a slot forming a guideway for said arms, a lever extending through the case below said slot and having a detent and a laterally-extending arm inside the case, a dog pivoted adjacent the slot and having a lug engaged by said arm of the lever, and a s ring for normally holding the dog across t e slot. i

2. A device of the character describe comprising a plurality of spring-actuated arms, a case having a slot forming a guideway for said arms, a lever extending through the case below said slot and having a detent and a laterally-extending arm inside the case, a dog pivoted adjacent the slot and having a lug engaged by said arm ofthe lever, a spring IOO yand means for actuating the lever to reverse the relative positions of the detent and dog.

3. A device of the character described, comprising a case having a horizontal slot and a vertical slot adjacent thereto, a plurality of spring-actuated leaf-turning arms extending through said horizontal slot, a lever extending through the vertical slot and having a detent and a laterally-extending arm inside the case, an independentlypivoted dog having a lug engaged by said arm of the lever, and a spring coiled about the pivotpin of the dog and bearing upon the said lug and upon the lever adjacent to its detent and normally holding said lever and dog, in engagement.

4. A device of the character described, comprising in its construction a jointed leafturning arm the inner member having ears, a pin and a slot below said pin, the outer memer having an elongated slot through which said pin passes, the inner or lower end of said outer member being adapted to protrude through the slot of the inner member when in upright position.

5. A jointed arm for a leaf-turning meehanism comprising an outer member having a loop and means for engaging a leaf, and an inner member having ears and a pin extending through said loop and formed with an opening to receive the lower end of said loop when the outer member is turned at an angle to the inner member.

6. -A jointed arm for a leaf-turning meehanism comprising an inner member having a olip rigidly secured thereto, said clip having ears connected by a Cross-pin or rivet and formed with an opening below said pin, and an Outer member comprising a wire doubled and twisted and having leaf-engaging ngers, the doubled end of the wire being formed as a loop embracing said pin and adapted to enter the opening of the clip.

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

EDGAR S. STEM.

Witnesses:

F. F. REEsE, R. H. MITCHELL.

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