Music – Accessories – Leaf turners
Patent
1994-04-20
1994-11-22
Gellner, Michael L.
Music
Accessories
Leaf turners
84497, G10G 700
Patent
active
053658256
ABSTRACT:
A sheet turning device for printed sheets supported on a stand which includes a transparent jacket for each sheet, a sheet turning rod secured to each jacket of the stack, the several rods extending side by side, a lever arm fixed to each rod, whereby pulling on a selected lever arm causes rotation of the associated rod and turning of the sheet to the jacket of which the rod is fixed. A set of selector members are disposed side by side and are longitudinally movable in a guide, each selector member is attached to one lever arm. A common pulling member is movable back and forth in a predetermined path under the action of an electromagnet controlled by a foot-actuated switch. The first pulling action causes the first sheet to be turned since only the selector member associated with the first sheet is pulled. During operative movement of the first selector member it raises the next selector member which is then in a position to be engaged and pulled by the pulling member upon the next pulling movement so as to turn the second sheet. The action is repeated for all the sheets of the stack.
REFERENCES:
patent: 2545839 (1951-03-01), Blez
patent: 4463651 (1984-08-01), Hammer
patent: 4882969 (1989-11-01), Ricca
patent: 5052266 (1991-10-01), Burster
Gellner Michael L.
Lesperance Pierre
Martineau Francois
Stanzione Patrick J.
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