US429711A - Music-leaf turner - Google Patents

Description

(No Model.)

P. P. ASMUS. MUSIC LEAP TURNER.

Patented June. 10, 1890.

UNITED v STATES PATENT OEEICE.

FREDRIOK F. ASMUS, OF HULL PRAIRIE, OHIO.

MUSIC-LEAF TURNER.

SPECIFICATION forming part of Letters Patent No. 429,711, dated .Tune 10, 1890.

Application filed January 10, 1890. Serial No. 336,465. (No model.)

To all whom, it may concern:

Be it known that I, FREDRICK FRANK As- MUs, a citizen of the United States, residing at Hull Prairie, in the county of Icod and State of Ohio, have invented certain new and useful Improvements in Music-Leaf Turners; and I do 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.

My invention relates to improvements in music-leaf tur-ners; and it consists in certain novel details in construction and operation of the several parts, as will be hereinafter more specifically described. in the specification and pointed out in the claims.

In the accompanying drawings, forming a part hereof, Figure l is a plan View of a musicleaf turner constructed according to my invention. Fig. 2 is a detached face View of the sliding rack, and Fig. 3 is a transverse section on the line 90 of Fig. l. Fig. 4 is a detached view of the series of cog-wheels and their disks and spindles that carry the leaf-holding arms at their outer extremities.

The obj eet of this invention is to providea simple device whereby the leaves of in usic may be turned by the foot of the person performing upon the piano or other instrument, and to this end I proceed as follows:

Vithin a suitable frame A is arranged to slide in a groove c a rack B, which rack is formed upon one face with a series of teeth l 2 3 and a series of blankscd e, alternatingin position with said teeth, and is connected at one end to a cord fand at the other end to a spring g, for the purposes as will presently appear.

Adjacent the groove a and in suitable position to engage the rack B is arranged a series of cog-wheels h fzi j, each of which wheels is secured to separate spindles 7n l m, and at the top of each of said cog-wheels is secured a disk, as at h e" j. These disks have facets, as at W123?, formed at the edges thereof, and the spindles of the cog-wheels are arranged one within the other or telescopic, so that the wheels are arranged one below the other, and all are supported upon a pivot-point 4, projecting from the frame A, as shown in Fig. 3.

Upon the top ends of each of the spindles 7s Z m is secured a leaf holder or arm H I J, and

these holders are preferably of bent springwire in two parts, between which the leaf is inserted and held by the spring. Any desired number of these cog-wheels maybe employed, according to the number of leaves of music, with teeth in the rack corresponding thereto, and these wheels and their disks are so arranged relatively to the teeth and blanks of the sliding rack that the said wheels will be operated in rotation in the following manner:

Upon drawing upon the cord connected to the sliding rack said rack is caused to move in the direction of the arrow in Fig. Land the teeth l of said rack are brought into engagement with the wheel h, the facets @"2 and of the disks t" and j of the wheels and j then being upon the blanks (l and e of the rack and the said wheels i'. and j between said blanks, as shown in Fig. 3. Thus the wheel his turned by the teeth 1 of the rack, which causes the spindle k of said wheel to revolve 0r turn, and with it th'e arm Iil, holding the first leaf of the music, is moved from the right to theleft side of the instrument. A second movement of the sliding rack brings the second series of teeth thereof into engagement with the second cogwheel, so as to operate the secondleaf-holder, and so on until each sheet of the music shall have been turned, when, upon releasing the pressure upon the cord, the spring g will retract the rack to its normal position. The teeth of the rack and blanks thereof are so arranged relatively to the facets of the disks forming a part of the wheels that after said wheels have been acted on or turned by said racks said facets of the disks will come against the blanks or ways of the rack, and thus the further revolution of the wheel is prevented. Only one wheel can therefore be acted on at a time and only to a limited extent, corresponding to the length of the rack, which is so gaged as to just move the arm holding the musicleaf about a half-revolution. The wheels being arranged one below the other and with their spindles telescoping with each other, a compact and simple mechanism for operating the leaves of music while playing or performing upon the instrumentis provided that will be positive in action.

WVhat I claim as my invention, and desire to secure by Letters Patent, is

l. In a music-leaf turner, in combination vIOO with a suitable frame, the sliding` rack having series of teeth and blank spaces alternating therewith arranged longitudinally across the face thereof, and series of oog-wheels arranged to engage said teeth of said rack, and series of disks with facets corresponding in position to the blanks of Jthe rack secured to said Wheels, and with the spindles of said Wheels arranged telescopic and carrying a music-leaf holder at their upper ends, and means for operating' said rack, substantially as and for the purposes described and shown.

. The combination, with the rack B, having` series of teeth 12 3 and series of blanks c d e, and means for operating; said slide, of the series of cog-wheels h lj and disks 71. 17j', having' facets h2 [2 7'2, and means connected to the spindles of the Wheels for holding' the musicleaf and turning the saine, substantially as described and shown, for the purposes stated.

In testimony whereof I aliix niy signature in presence of two Witnesses.

FREDRIGK F. ASMUS. Vitnesses:

L. E. YosT, Wn. Il. BRERETON.

Images