DETACHABLE POWDER SUPPLY DEVICE FOR FLAME SPRAYING TORCH Russian patent published in 1994 - IPC

FIELD: mechanical engineering. SUBSTANCE: detachable device housing is installed on torch body for turning relative to geometrical axis arranged outside powder supply channel parallel to flat section of torch body. Made in detachable device housing is open space pointed to flat section which accommodates resilient bushing whose inner surface is at least part of powder supply channel, and spring-loaded bell-crank. Bell-crank is installed for engagement by one arm with flat section of body upper part and by other arm, with outer surface of resilient bushing. Moreover, in one of design versions, fitted at different sides of powder supply channel are lug installed for engagement with axle rigidly secured on upper part of torch body, and spring-loaded lever. One arm of spring-loaded lever is made in form of wedge lock intended for engagement with wedge-shape recess made on torch body, and other arm is made in form of button for manual control of wedge lock. In other design version rigidly fixed on upper part of torch body at different sides and equidistantly from inlet hole of powder supply channel are two rotary-axle joint axles, each provided with wedge-shape recess for lock. EFFECT: increased service life and enhanced reliability of device owing to prevention of abrasive wear. 3 cl, 3 dwg