Electric lamp and discharge devices: systems – Combined load device or load device temperature modifying... – Distributed parameter resonator-type magnetron
Patent
1984-04-18
1986-09-23
Chatmon, Saxfield
Electric lamp and discharge devices: systems
Combined load device or load device temperature modifying...
Distributed parameter resonator-type magnetron
315 3955, 331 90, H01J 2550
Patent
active
046137882
ABSTRACT:
An arrangement for transmission of a predetermined fixed frequency by means of a tunable high frequency transmitter tube, such as a magnetron, the tuning of which can be varied periodically by means of a rotatable tuning body driven by a motor. The arrangement comprises a locking hook (22) which is pivotably mounted on a part connected to the rotatable tuning body and cooperates with a stationary locking disc (11), having a locking notch (14) with a stop surface (15). The locking hook (22) cooperates with spring means (28, 30) urging the active end of the locking hook towards the stationary locking disc (11). The locking hook (22) has furthermore a counterweight (35) situated at the opposite side of its rotation axis (23) as compared with the active end. When the tuning is varied, the tuning body is rotated in its normal rotation direction, in which case the counterweight (35) will overcome the force from the spring means (28, 30) so that the locking hook (22) is swung to a position in which it is free from the locking disc (11). When a predetermined fixed frequency is to be transmitted the motor is reversed, whereby the locking hook (22) under influence of the spring means (28, 30) is swung with its active end towards the stationary locking disc (11) with the locking notch (14). After reversion of the rotation direction the locking hook (22) engages the locking notch (14) and locks the tuning body in a position determined by the angular position of the locking notch (14).
REFERENCES:
patent: 2481171 (1949-09-01), Spencer
patent: 2506955 (1950-05-01), Fracassi
patent: 2542908 (1951-02-01), Derby
patent: 3548312 (1970-12-01), Strom et al.
patent: 3590313 (1971-06-01), Stoke
patent: 3876903 (1975-04-01), Landau
patent: 4527094 (1985-07-01), Gerard et al.
Chatmon Saxfield
Kraus Robert J.
U.S. Philips Corporation
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