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Air System Equipment____________________________________________ Eigen Manufacturing Corporation 41-34 39th St., Long Island City 4, N. Y. ELGEN SILENT DUCT--Pre-assembled metal and material for flexible duct con nectors. ELGEN ALL-TITE VANE RUNNERS--for making turning vanes for square elbows. ELGEN DAMPERSET--for damper control in blower and exhaust systems. ELGEN SILENT DUCT Factory-assembled metal and material. Delivered in dispenser carton . . . pulls out flat, ready to use. Union made. Available in 24 or 26-gauge galvanized steel . . . Fastened to fire, water and mildewresistant UL approved canvas (Govt. Spec. MIL-D-10860) or to. JohnsManville asbestos (wire-filled, if desired) or to U.S. Rubber Co. Neoprene-coated fiber glass. Delivered in 100-ft (approx.) coils; 50-ft coils with asbestos available. ELGEN ALL-TITE COILED VANE RUNNER Button .Type for single and double blades Quick, inexpensive method of making turning vanes. 24-gauge galvanized steel. Eliminates notching, punching,-etc. No special tools needed. Is screwed into elbow . . . absolutely rigid and rattleproof. Delivered in the 100 ft coils (approx.) Unrolls absolutely flat. Union made. ELGEN DAMPERSET for multi-blade dampers--parallel or opposed Licensed by Minneapolis-Honeywell. Quick and easy to assemble. Precision-machined--cadmium plated. Bronze self-oiling bearings. Packed in single boxes or bulk 100's. AH Eigen products engineer-approved; available at leading jobbers in V. S.. Canada, Hawaiian Islands. Descriptive literature on request. 1468 Air System Equipment Flexible Duct and Connectors The WSHBHOiB Company Hartford 10, Connecticut Manufacturers of Wiremold Air Duct for Commercial Air Conditioning Systems. Wiremold Air Duct has REMARKABLE FLEXIBILITY .. proved on every type of Commercial Air Conditioning System! Designed for connecting air-distribution units to branch ducts, strong, durable, and extremely : flexible Wiremold Air Duct conducts air at temperatures of 0 to 250F at high or low velocities. Wiremold Flexible Air Duct Type 67-1A connecting four diffusers to sound box and sound box to main duct tn modular ceiling construction. Takes all bends without kinking. Flexi bility of duct allows for expansion and contraction of system and prevents transmission of mechanical vibration. Wiremold Engineering Data Sheets give details of Wiremold Air Duct installa tions. Send for your copies. Type 57-!A, S-in. and 7-in. IM. flexible connectors high velocity system. City County Building, Detroit. Unique construction--vinyl coated fiberglas fabric mechanically locked into the steel spiral--gives Wiremold Air Duct extraordinary longevity and strength. No glue or other adhesive to dry out and crack. Saves time, effort, and money in in stallation--easily bends 90 deg to 180 deg. Can be easily run around structural members. Solves misalignment problems. Finished modular ceiling installation--Wiremold Air Duct permits relocating of diffusers. There are WIREMOLD AIR DUCT SALES ENGINEERS to give you onthe-job service throughout the United States and Canada, 1469