Flame spray gun with wire feed control

Advancing material of indeterminate length – With material-responsive control means – To regulate longitudinal movement of material

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B65H 2316

Patent

active

052558363

ABSTRACT:
A wire flame spray apparatus includes a wire feed pulley driven by a motor. A first counterpulley urges a wire into engagement with the feed pulley. A detector pulley with a second counterpulley engages the wire to detect actual wire feed rate. A balance beam supports the counterpulleys. A pressure cylinder acts on the beam to increase counterpulley force on the wire in response to a lagging of actual feed rate from a predetermined feed rate so as to avert slippage of the wire on the feed pulley. A sensor senses changes in rotational speed of the detector pulley and generates signals to increase the counterpulley force. A microprocessor provides control signals for the motor and pressure cylinder.

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patent: 5074469 (1991-12-01), Herber

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