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contained in the east metal ease and may be swung open for access by releasing one screw.
16mm. Animated Viewer*
A well built machine made up in casl aluminium with a number of features to satisfy the professional user.
It projects a picture 3 Jin. X 2] in. on to a ground glass screen and gives a brilliant illumination, using a 12 v. 24 watt standard car lamp in conjunction with a built-in transformer working from 250 v. A.C. mains.
A nicking punch is fitted for ^^ cutting frames and a skate is provided to prevent film slipping on sprocket.
A pair of non-geared winder heads are included. Pleasing finish in bronze crackle enamel. Weight 10 lbs.
Bell & Howell-Gaumont Automatic Film Splicersf
These splicing machines are available in eleven different models for 35mm., 16mm. and 8mm. film. The Combination model, combining all three sizes, is worked by means of interchangeable register pins.
The basic machine incorporates the standard features which include footpedal operation and identical methods of scraping and cutting. A heater element is embodied to ensure complete welding of the splice. Certain models also make provision for scraping the film on the celluloid side in order to provide a maximum thickness at the splice of .008in.
9. LABORATORY EQUIPMENT
Bell & Howell-Gaumont Printer Models D and Jf Model " D " is the standard printer for 35mm. film, and Model " J " for 16mm. film. The two models embody exactly the same essential principles. The only difference is in the dimensions of the sprockets, rollers, flange, hubs, masks, etc.
The light control of the machine is semiautomatic, i.e., while the actual range of light volume at the film contact-point is controlled electro-mechanically, the changes are pre-set by the operator, one step ahead of the printer operation, hence the term " semi-automatic."
A 22-position shutter encloses the lamp side of the printing spocket. The exposure variation between steps is approximately 10° 0, and the range of exposure covers all normal negatives. The shutter is pre-set by a control lever working through a roller and switch operated by normal 3.1mm. film notches. This switch also operates the timing card indicator control.
*E. D. Runkel & Son. fGB-Kalee, Ltd.