Lessons In How To Become A Successful Moving Picture Machine Operator PDF Download

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1908 edition. Excerpt: ... operation of the light is very simple, and in order to make it perfectly clear, the directions are given under three different headings, as follows: THE CHEMICALS.-THE OXYGEN GENERATOR. THE GASO-OXYGEN SATURATOR AND BURNER. Necessary Chemicals. The necessary chemicals can be obtained in almost any large town if the supply purchased from us becomes exhausted. Buy the chemicals from a re-' ' liable druggist, and see that there. are no chips or other combustibles mixed with the chlorate of potash or the black manganese. The following chemicals will suffice for two hours' continuous running: 2 lbs. chlorate of potash and % lb. black manganese (in the retort (I), see Fig. 5), 1% pints 90 deg. gasoline (in the saturator), and I lime pencil. Mix 4 parts of chlorate of potash and 1 part of black manganese thoroughly and distribute it equally along the entire length of the retort (I). Turn the retort so that the seam comes on top. Fill the retort (1) as above. Connect the purifiers as shown in Fig. 6. The purifiers ( 5) should be half filled with pure water and %; oz. of caustic soda placed in bottle nearest the retort.' Be careful that the ends of tubes AA are BELOW the surface of the water and the ends of tubes BB ABOVE the water. The gas bag (7) should be rolled before connecting, to eject all air. Place the burner (3) on retort stand (2) at one end of the retort (1). Gas will generate as soon as heat is applied. Allow a little oxygen to be given off, before finally connecting the retort (1) with the tubing (4) to the first purifier (5). To ascertain when the gas is pure, light a piece of brown paper, then blow it out, and hold the smouldering portion in front of the arm of the retort (I). When the gas is.pure, the paper will burst...