Popular science monthly . when re-leased, enablesthe hopper toenter the tankwith the plate,and a handle and(ju ad rant withtwelve pointsrepresenting thetwiKe compart-ments for platesin the using 71(i Popular Science Mouthb/ Mr. Wooilmans appara-tus the first t)perati<)aconsists in placing tliehandle of the developingtank on the first positionol the qiuidrant, on linemarked 1. This insuresthe insertion of the firstplate in compartment Iof the tank. The plate-holder of the camera isthen removed from thecamera box andplaced inthe transferring-hopperfor its entrance into thetank. Afte
Popular science monthly . when re-leased, enablesthe hopper toenter the tankwith the plate,and a handle and(ju ad rant withtwelve pointsrepresenting thetwiKe compart-ments for platesin the using 71(i Popular Science Mouthb/ Mr. Wooilmans appara-tus the first t)perati<)aconsists in placing tliehandle of the developingtank on the first positionol the qiuidrant, on linemarked 1. This insuresthe insertion of the firstplate in compartment Iof the tank. The plate-holder of the camera isthen removed from thecamera box andplaced inthe transferring-hopperfor its entrance into thetank. After it has beensecurely fastened to thehopper by the operationof a lock-bar, the slide onthe holder is withdrawnwithout exposing theplate. Because the transfer-ring hopper is lined withlilack felt, making a light-light joint with the holder,the plate is protectedfrom the light while it isbeing passed from theholder to the hopper. Next, the plate is pro-jected into the tank. Thisis done by releasing thelocking-dog attachment. Introducing a plate into thetank. The handle is pulledback just long enough forthe plate to pass through
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1872
