Babson Bros. Co.

Babson Brothers Company

Lyle L Needham

Harold V Swanson

Bruno J Marusarz

Don W Fitzpatrick

James W Kopec

A pump control for a pipeline milking system in which milk collects in a receiver and is pumped out periodically. The control has a liquid level sensing circuit connected with an electrode in the receiver. The sensing circuit includes a transistor amplifier, a source of alternating signal, a circuit connecting the source through the electrode and liquid with the base of the transistor and a sensitivity resistor connected in shunt with the transistor base. A timer actuated by conduction of the transistor controls the pump operation. The circuit has provision for control of the pump operation during washing with a switch selecting the milk or wash control electrode and selecting the appropriate time period for the timer.

Pump control

A milker support including a support structure adapted to support a milking unit within a stall and which may be moved downwardly in small increments during a milking process to optimize the height of the milking unit relative to the cow as the cow is being milked out. A reciprocal motor mounts the support structure and manual controls for the motor are provided whereby the initial height of the support structure may be adjusted. An automatic control is operative to cause the motor to progressively drive the support structure, and thus the milking unit, downwardly during a milking process.

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Bellwood, IL, United States of America

Lyle L Needham