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Eleventh Edition INDUSTRY AND ENGINEERING
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GROUP 75 MACHINERY Miscellaneous
Better Method (1) The sand slinger at work. (•36) Convertible Shovel (1) Intended for technical schools and groups. (©36) The Engine Lathe and Its Operation (7) Complete assembly of lathe parts, construction and operation. (A163) Four-Stroke Cycle Gas Engine (1) Shows it in a single cylinder "T" head type motor. (©57, 104)
Graphic Representation of Machine Operations (2) Operations of variout machines — lathes, milling machines, planers and drills. (AH7) How Movies Move (1) Explanation of Geneva Star and Cam on Maltese Cross mechanism. (©Ill) The Modern Goliath (4) Uses of heavy excavating machinery. (A176) The Molder (1) Mass production of small gray-iron castings. (©A78) Our Mechinical Servant — the Elevator (%) Principle of hydraulic elevator. (©A30, A197) Oxwelding and Cutting — the Modern Method of Joining and Severing Metals (1) Internal construction and operating principles of apparatus.
(©AH4)
Oxwelding for Profit — I & II (1 each) Versatility of process in home, plant, farm ; application in many industrial fields. (©A114)
Oxwelding in Production — I & II (1 each) Production of automobile bodies, refrigeration units, welding of aluminum fuel tanks ; second part ; shows welding of pressure vessels and transformer tops. (©AH4)
The Prosperity Process (2) Versatility of oxy-acetylene process in fabricating, severing, repairing, hard-surfacing metal parts. (©AH4)
Punch Press Safety with Increased Production (1) Automatic and semiautomatic feeds and power press guards. (©AH3)
Refrigeration (1) Ammonia compression system of refrigeration applied to artificial ice-making and household mechanical refrigeration (©57, 104)
Simple Machines (1) Lever and inclined plane are developed as fundamental to other machines. Principles of mechanical advantage, work, efficiency and conservation of energy are applied. (©57)
Story of Rock-Drilling (2) Use of diamond core drill, "rotator," hammer drill, water-jet stoppers in iron mining and granite quarries. (A176)
Use and Abuse of Twist Drills (2) Strictly technical ; shows parts of twist drills and errors to avoid in their use. (©A41)
The Universal Milling Machine and Its Operation (8) Parts and con; struction ; manifold operation. (©A168)
Valves, Their Manufacture and Uses (3) Their importance to industry and the home. (©A10, 176, 202)
(See also Groups 13, 79, 86)
GROUP 76 POWER, MECHANICAL, and ELECTRICAL
The Busy Body (1) Parts comprising the smallest motor. (©A78) Electrical Heart (1) Story of a dynamo. (A146) Electric Power in the Southern Appalachians (1) Before Water Power
Was Developed ; Developing Water Power ; After Water Power Was . Developed. Shows progress in the South. (©57) Energy and Work (1) Workings of a steam operated electric power i plant. (©58) | McCormick-Deering Industrial Power (2) Industrial tractor at work Jin oil fields, at docks, in dense forest, etc. (A38, 103)
The Modern Trend in Turbine Design (2) Factors affecting the design
of steam turbines. (A78) Power Transformers (2) Development and manufacture. (©A78) Power (2) Development of power from earliest uses of steam power
to great stations of today. (©A 170, 202)
Power of Falling Water (1) How power is generated from great falls
and distributed. (A197) The Romance of Power (2) Adaptation to needs of man. (A78) Steam Power (1) Early steam engines and explains improvements
which made steamboat possible. (©57) Story of Power (3) Early development of steam engine and modern
uses of electricity ; animated photography. (©10, ©A176)
Steam Turbine (2) Description and demonstration of operation of
single-stage turbine wheel by means of steam and air jets. (A78)
The Educational Screen does not handle films.