Slide gate

Details Slide gate Slide gate

1978-03-31

1980-10-28

Downey, Kenneth

Movable or removable closures

With operator for movably mounted closure

Operator drives closure along guide

E05F 1134

Patent

active

042299071

ABSTRACT:
Disclosed is a lost motion coupling for connecting a propulsion device with a load to be moved. The coupling permits the propulsion device to generate significant momentum before applying driving force to the load. In the embodiment described, a traveling nut is driven in translational motion along a rotatable screw. The traveling nut is included within the lost motion coupling between the screw and a slide gate. Significant rotational momentum may be obtained by the screw before the lost motion coupling applies driving force to the slide gate. The slide gate then experiences an abrupt application of a substantial driving force to overcome forces retarding motion of the slide gate.

REFERENCES:
patent: 2657661 (1953-11-01), Robson
patent: 2731261 (1956-01-01), Drum
patent: 3745705 (1973-07-01), Keddy

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