Music – Accessories – Leaf turners
Patent
1991-12-02
1994-12-20
Gellner, Michael L.
Music
Accessories
Leaf turners
G10G 700
Patent
active
053737725
ABSTRACT:
A page turning device placed on a music stand by a clip, a preformed set of a flat spring mechanism is fixed in an opening which is located in the center of the device. Each spring has a predetermined length; the first spring resting on the page turning device is the shortest. The second spring is longer by a predetermined length. The last spring is the longest. A narrow pocket is located at the bottom of each transparency. Each spring is connected to a transparency. To operate, each transparency is placed behind a page which is to be turned, and with the aid of a clip the transparency and the page are held together. All the springs and the transparencies, including the pages found in between, are pressed to the right. All the springs are placed together into the indentation of the movable unit in an aperture, at the right side of the device. All the springs are arranged in the unit in the following way: The shortest spring turns the first page; The longest spring turns the last page. The movable unit is connected by a cable to a gear of a toothed gear wheel located in the pedal. Every pedal depression results in a predetermined pull of a cable around the gear, causing the movable unit to move to the right on the device and to release one pressed spring which returns to its initial position, causing a page to be turned.
REFERENCES:
patent: 1028270 (1912-06-01), Pfarrhofer
patent: 1130108 (1915-03-01), Rodliff
patent: 1883034 (1932-10-01), Snively et al.
patent: 4072080 (1978-02-01), Conlin
Gellner Michael L.
Stanzione P.
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