Machine element or mechanism – Mechanical movements – Reciprocating or oscillating to or from alternating rotary
Patent
1977-08-15
1979-12-25
Scott, Samuel
Machine element or mechanism
Mechanical movements
Reciprocating or oscillating to or from alternating rotary
212 93, 254178, 2541755, 187 94, 74591, F16H 2902
Patent
active
041799470
ABSTRACT:
An eccentric balancing system for assisting the reciprocal motion of a well pump which includes a first mandrel having wound thereabout a first sheave chain, the wind up of the first sheave chain being arranged for stacked alignment. A second mandrel, mounted for rotation with the first mandrel, is wound in the opposite direction to store in stacked arrangement a second sheave chain which may be either connected to a counter balancing weight or which may be deployed to articulate a second well pump. In the event that the second mandrel is utilized to articulate a second well pump a third mandrel may be utilized for counterbalancing any inequalities between the two well bores. It is intended to include a switching circuit, which according to the playout of the sheave chains engages an electric motor to augment the losses attendant with pumping fluid and the friction losses in each bore.
REFERENCES:
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patent: 2898083 (1959-08-01), Kresl
patent: 3519213 (1970-07-01), Hofmann
patent: 3672237 (1972-06-01), Nagin
patent: 3793904 (1974-02-01), Grable
patent: 4062640 (1977-12-01), Gault
Anderson G. A.
Bak-Boychuk I. Michael
Scott Samuel
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