A NEW TELEPHOTOGRAPH SYSTEM 



553 



Design 

 In addition to meeting the above general requirements the new 

 design includes arrangements for daylight operation, a new type of 

 driving motor, and scanning with a pulsating beam of light whereby 

 the photoelectric current can be amplified by a-c. methods. 



Descrittion of the New TELEPHOTO(;RApn Equipment 



The general specifications outlined in the preceding i)aragraphs are 

 embodied in the new telephotograph equipment now being manu- 

 factured. Telephotograph equipment of this type for a station 

 arranged to send and receive pictures consists of a sending machine 

 and a receiving machine mounted on separate tables (see Figs. 2 and 3), 



Fig. 2 — Telephotograph sending machine. 



A — Motor. 



5— Clutch. 



C— Optical system. 



D — Picture cylinder. 



Fig. 3 — Telephotograph receiving machine. 



A- 

 B- 

 C- 

 D- 



-Optical system. 

 -Cylinder housing. 

 -Clutch. 

 -Motor. 



