Two-speed video recorder

Details Two-speed video recorder Two-speed video recorder

1976-09-30

1977-12-13

Gerin, Leonard H.

Machine element or mechanism

Gearing

Toothed gear and recirculated unconnected elements

74190, F16H 900, F16H 1500

Patent

active

040622487

ABSTRACT:
The specification discloses a video recorder having two recording speeds. The recorder includes a capstan pulley for moving video tape past a recording head and a drive pulley rotated at a predetermined drive speed. A speed change assembly is interconnected between the drive and capstan pulleys and is operable to selectively change the recording speed of the video tape recorder. The speed change assembly includes a first shaft including first and second pulleys. A second shaft is provided and includes a first and second pulley, the first pulley of the second shaft having a smaller diameter than the first pulley of the first shaft. A solenoid is provided to move the first and second shafts between a first and second position, such that in the first position the first pulley of the first shaft engages the drive pulley and the second pulley of the second shaft engages the capstan pulley. In the second position, the first pulley of the second shaft engages the drive pulley and the second pulley of the first shaft engages the capstan pulley.

REFERENCES:
patent: 2875623 (1959-03-01), Babler
patent: 3481214 (1969-12-01), Warren
patent: 4009950 (1977-03-01), Suzaki et al.

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