Apparatus for use in controlling the tension of a chain or chain

Details Apparatus for use in controlling the tension of a chain or chain Apparatus for use in controlling the tension of a chain or chain

1976-08-11

1977-09-20

Gerin, Leonard H.

Machine element or mechanism

Gearing

Toothed gear and recirculated unconnected elements

F16H 712

Patent

active

040488667

ABSTRACT:
Chain-tension control apparatus for use with mine installations utilizes a hydraulic multi-piston engine motor driving a reduction gearing which can be selectively coupled to a drive system for a chain or chains used in the installation. The motive fluid for the motor is derived from the main pressure fluid source supplying fluid to other components of the installation and is preferably a 2-5% oil in water emulsion supplied via a pressure-reducing device. Pipe means in the form of a siphon conveys waste fluid as an overflow back to a storage tank independently of the main flow and return lines to the motor and the pipe means provides a fluid trap to maintain a certain quantity of fluid in the motor at all times.

REFERENCES:
patent: 2610517 (1952-09-01), Hornbostel
patent: 3647270 (1972-03-01), Althaus
patent: 3950031 (1976-04-01), Krekeler
patent: 4007826 (1977-02-01), Brown, Jr. et al.

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