96 



HANDBOOK OF MECHANICAL DESIGN 



LOCKING DEVICES 



Seiscrew holds 

 I in posH'ion one 



I member seren- 

 ed info anoi-her 



Fig. 18. 



Fig. 19. 



/ Hex.nulj locked 

 ' in place a I end 

 • ///////}/ \ of shaft b'/ head- 

 less sefscrew^ 



Pipe plug re fa Ins 

 I member on end of 



>^ /Selscrew has split 

 cuppoint which 

 spreads on being 

 pressed against 

 ball 



-Steel ball 



■ Dog- pointed set- 

 screw locks shaft 

 radially and long- 

 itudinally 



■Grooved shaft 



Fig. 21. 



Fig. 22. 



Fig. 23. 



I Split nut wedged 



\ apart by small 



I setscrew to Jam threads 



Fig. 24. 



, Taper-headed 

 I screw in split 

 ' shaft 



Fig. 25. 



Combination of wedge and 

 lock scre'A/ '^ 



Fig. 26. 



Cone-pointed screws contacting 

 conical holes provide means 

 for locking and adjustment 



•J^lexible tubing or oil tubes 



Fig. 28. 



■^Flexible tubing or oil tube 



Fig. 29. 



Flattened rod clamped 

 by sleeve with half round 

 slot milled at lower end 



Fig. 30. 



Knurled nut 

 locks screw 



I Threaded collar slotted 

 JO deg. apart. Ttiree screw- 

 holes 10 deg. apart give 

 J6 locking positions. 

 Close adjustment se- 

 cured with fine thread 

 on nut 



Fig. 32. 



