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1970 WORKHEAD MECHANISMS acceptable tolerance alignment April 1970 WORKHEAD assembling machine ASSEMBLY FIXTURE assembly ram back-up ball bearing Bore gauging causes Cheese headed screw clamp clip commencement of stroke COMPRESSION SPRING cycles per hour DATA MEMO INSTITUTION Diagrams showing operational diameter distributor head drawing at view driver bit electrode elevation ENGINEERS WORKHEAD MECHANISMS feed track further indexing gauging probe greasing head gripping jaws headed pin HYDRAULIC CYLINDER Indent indexing drum INSTITUTION OF PRODUCTION lower lozenge MAIN FRAME marking roller mechanism commences micro-switch movement Operational speed Outer shaft piston PIVOTING FRAME pneumatic actuator PNEUMATIC CYLINDER position pre-set torque pressure relief valve PRODUCTION ENGINEERS WORKHEAD radially ram presses reject chute retract rotary table rotating Screwdriving sensing lever sensor rod shank showing operational sequence shown at view signal is passed slide block Subject to patent tooling head twisting jaws unit vertical ram vertically mounted view in direction View showing washer welding