LATCHES, LOCKS, AND FASTENINGS 



99 



^^ leodeg. 

 furn opens 

 va/ve 



Si-eel - 

 wedge 



Fig. 64. 



Fig. 65. 



Tooihed 

 wedges 



— Board in 

 drop hammer 



Fig. 66. 



/Special wedge- headed 

 / screw cfamps shafts 



Screw— I 



-' Spring-backed 

 y plug 



'Shaff locked agains'f' 

 endwise mol'/on 



Serraled head 

 on screw 



Fig. 67. 



Fig. 68. 



