G - Physics – 11 – B
Patent
G - Physics
11
B
35/41, 181/49
G11B 3/40 (2006.01) G11B 3/12 (2006.01) G11B 17/025 (2006.01)
Patent
CA 1059035
Abstract of the Disclosure Miniature apparatus for reproducing sound from a stationary record which comprises a base and a main shaft mounted on the base. A disc-like member is rotatably mounted on the main shaft and means is carried by the base for rotating the disc-like member. A cartridge having a stylus therein adapted to engage the record is provided. An arm assembly carries the cartridge in one end thereof and means is provided for mounting the arm assembly on the disc-like member to permit swinging motion of the arm assembly about horizontal and vertical pivot axes. The disc-like member has an arcuate slot therein through which the stylus can extend to engage the record. Counter balance means is carried by the arm assembly so that the arm assembly and the cartridge carried thereby is counterbalanced about the pivot axes for the arm assembly. Counterbalance means is also carried by the disc- like member for counterbalancing the mass of the arm assembly and its counterbalance means. Means is provided for yieldably urging the arm assembly and the cartridge carried thereby in a direction that causes the stylus to engage the record in any position of the apparatus. Means is provided for moving the arm assembly and the cartridge carried thereby to move the stylus out of engagement with the record and for retaining the arm assembly in an at- home position. Latch means is carried by the base for latching the disc-like member to prevent rotation of the same when the arm assembly is in the at- home position. Push button means is carried by the base and is movable to a position to release the disc-like member to permit rotation of the same and to cause operation of said means carried by the base for rotating the disc- like member and for releasing the arm assembly to permit the cartridge and the stylus carried thereby to move to a position whereby the stylus can engage the record.
243258
Irvin Ronald D.
Runyan Steven R.
Microsonics Corporation
Na
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