A Daylight Developing -Tank 



An ingenious apparatus which enables the photog- 

 rapher to develop his photographic plates in daylight 



/% LL outdoors is the vast laboratory 

 r\ of the camera enthusiast when he 

 is taking pictures; but when he de- 

 velops them he has to confine himself to a 

 stuffy, insanitary darkroom and there 

 work as best he can with acids, despite the 

 dex'eloping tanks on the market. 



Had Colonel Roose\-cIt a suitable and 

 convenient means 

 for developing on 

 native soil his pic- 

 tures of the Rixer 

 of Doubt they 

 might have been 

 saved. As it was, 

 a large and valu- 

 able collection of 

 photographic 

 plates was lost 

 when the supply- 

 boat carrying 

 them was cap- 

 sized. The plates 

 were recovered 

 but immersion 

 had ruined them. 



Misfortune of a 

 somewhat similar 

 nature attended 

 the exploration 

 party headed by 

 Carl Akcley, the 

 hunter and natur- 

 alist, on one of 

 his trips into 

 Darkest Africa. 

 The climate of 

 Africa is particu- 

 larly severe on 

 photographic 

 materials. Mr. 

 Akeley had taken 

 a large number of 

 animal and native 

 pictures but he 

 was woun<li-d b\- 

 a charging 

 elephant. Wiien 

 he arrived at the 

 first place wlicre 



The daylight developing tank ready to receive 

 its first plate. At the top is shown the transfer- 

 ringhopper with the plate-holder held securely 

 in place by the lock-bar. The tank proper 

 consists of a handle and a quadrant with twelve 

 points representing the twelve interior com- 

 partments for plates; a handle on a slide to 

 open the admitting slot just long enough for the 

 plate to pass through; a funnel through which 

 the developer is jwDured, and a waste-valve drainage 



he could ha\'e his plates developed (he 

 had intended to reach this place fully 

 sixteen months earlier) lie discovered 

 that his pictures were worthless. 



To provide the photographer with an 

 apparatus which will make it possible 

 for him to de\'elop his plates as soon as 

 he desires, and to enable him, at the 

 same time, to 

 work independ- 

 ently of the dark- 

 room, Raymond 

 A. Woodman, of 

 Mitchell, South 

 Dakota, has in- 

 vented a develop- 

 ing tank by means 

 of which plates 

 may be loaded as 

 well as developed 

 in daylight. 



In brief, the 

 apparatus con- 

 sists of a transfer- 

 ring-hopper 

 whii'h is nothing 

 more than a 

 receptacle for 

 transferring the 

 plates to the dc- 

 \eloping tank; a 

 lock-bar which 

 locks the plate- 

 holder of t li e 

 camera securely 

 to the hopper; a 

 1 o c k i n g - d o g , 

 \\hich, when re- 

 leased, enables 

 the hopper to 

 enter the tank 

 with the plate, 

 and a handle and 

 (ju ad rant with 

 twelve points 

 representing the 

 twi'Ke compart- 

 ments for plates 

 in the tank. 

 When using 



71(i 



