Scarecrow system

Details Scarecrow system Scarecrow system

1977-04-21

1978-08-29

Yasich, Daniel M.

Signals and indicators

Periodic

Animal frightening devices

G08B 1300, G09F 1912

Patent

active

041096053

ABSTRACT:
A main tow line carries deterrent scarecrow devices such as optical or acoustical devices. The tow line is supported by wire or rope-held pulleys secured to movably supported poles attached in the soil. The tow line is actuated by a drive assembly imparting a reciprocative movement to the main tow line by converting a rotary motion into a linear motion. The system can be operated by motive power which is controlled in accordance with prevailing light intensity conditions by a light sensitive control system. Auxiliary deterrent devices are attached to the poles, i.e. in the regions of the support of the main tow line to provide for protection particularly in corners, and coupled to the separate ropes for the pulleys to be moved thereby upon change of stress when the tow line reciprocates.

REFERENCES:
patent: 1167502 (1916-01-01), Huffman et al.
patent: 1287968 (1918-12-01), Greenleaf

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