204 



HANDBOOK OF MECHANICAL DESIGN 



Guard. 



Fig. 434. — Tilting hopper for small rivets and 

 screws, in which the work falls into a slot at the bot- 

 tom center of the hopper, which is tilted to the same 

 angle as the chute. 



Fig. 435. — Rotating hopper set at angle is slotted 

 at the lower face to feed into the chute small cup- 

 shaped objects, as shown at A, positioning them with 

 their open end up. Should cups enter chute open-end 

 down, they will drop through selector slot in the chute; 

 thus only those correctly positioned are allowed to 

 proceed to the assembly point. 



AcJ/'usfing 

 screws 



Adjusting screws 



Fig. 436. — Vertical rotating disk hopper for feeding 

 shouldered pieces to the chute. By adjusting the 

 hardened dog-point screws, it is possible to feed pieces 

 with a difference of only 0.010 in. on the diameter. 



Chufe, 



Hopper 



Prongs 



Fig. 437. — Another type of vertical rotating disk 

 hopper for feeding hollow cylindrical pieces having a 

 blind hole. Prongs are mQled on the periphery of the 

 disk; these prevent work from being fed open end up 

 into the chute. 



