Mechanism for transmitting from a rotary driving member successive linear and rotary motion to a driver member, particularly for soot blowers

摘要

667,127. Driving mechanism for sootblowers. LUMB, C. F., and DIAMOND BLOWER CO., Ltd. July 11, 1949, No. 18244/49. Class 99 (ii) .Driving mechanism in which a rotary driving member transmits linear and then rotary motion to a driven member, and vice versa, is particularly applicable to a sootblower in which a blower tube 7 is projected from a protective housing 4 whereby the cleaning fluid valve 11 is opened, and rotated in the blowing position. A handwheel 20 actuates a nut 19 in engagement with a screwed spindle 18 carrying the blower tube, and a sleeve 21, having a splined connection 22 with the spindle, is secured against rotation by a ball 24 engaging a recess in the fixed housing, whereby rotation of the nut moves the spindle axially until the ball moves automatically out of engagement with the housing into a recess 28 in the nut, whereby the nut, sleeve, and spindle rotate together. Stops 30, 31 on the sleeve and stops 32, 33 on the nut and housing co-operate to force the ball into and out of the recess. A' lubricator 27 is provided.