Popular Science Mouthb/ 



Mr. Wooilman's appara- 

 tus the first t)perati<)a 

 consists in placing tlie 

 handle of the developing 

 tank on the first position 

 ol the qiuidrant, on line 

 marked 1. This insures 

 the insertion of the first 

 plate in compartment I 

 of the tank. The plate- 

 holder of the camera is 

 then removed from the 

 camera box and 'placed in 

 the transferring-hopper 

 for its entrance into the 

 tank. After it has been 

 securely fastened to the 

 hopper by the operation 

 of a lock-bar, the slide on 

 the holder is withdrawn 

 without exposing the 

 plate. 



Because the transfer- 

 ring hopper is lined with 

 lilack felt, making a light- 

 light joint with the holder, 

 the plate is protected 

 from the light while it is 

 being passed from the 

 holder to the hopper. 



Next, the plate is pro- 

 jected into the tank. This 

 is done by releasing the 

 locking-dog attachment 



Introducing a plate into the 

 tank. The handle is pulled 

 back just long enough for 

 the plate to pass through 



Pouring the developer into 

 the tank through the funnel. 

 The plates are left in the 

 solution for about ten minutes 



Placing the camera plate- 

 holder in the transferring- 

 hopper for its entrance into 

 the tank. It is securely held 

 in place by a lock-bar. 

 Afterwards the plates are 

 washed and placed in the 

 fixing bath in the same 

 way for fifteen minjtes 



717 



and pulling back the 

 handle, which opens the 

 admitting slot and closes 

 it automatically as the 

 handle is released. This 

 protects the plates in the 

 tank while the plate- 

 holclcr is being changed. 

 The handle on the hop- 

 IXT isthcnad\ancetl to the 

 second line on the ciuad- 

 rant, the plate-holder 

 is reversed, and another 

 plate inserted. The oper- 

 ations are repeated until 

 the tank is loaded. At 

 this point the transfer- 

 ring-hopper is pulled out 

 of the slot in the tank cover. 

 The plates are now 

 ready to rcccixe the de- 

 veloping and fixing bath. 

 It is not necessary that 

 all twelve plate com- 

 partments be filled to 

 carry out the developing 

 operation. One plate 

 may be de\eloped as 

 easily as twelve. How- 

 ever, twelve plates can 

 be developed at the 

 same time and the so- 

 lutions saved each time. 



The plates removed in bulk 

 from the tank after the fixing 

 bath. They are now ready to be 

 thoroughly cleaned and dried 



