Document MGLoZVNy2XdN71NXBrrmxEzRy

Insulation, Underground A. Wyckoff & Son Company Elmira, N. Y. Send all inquiries to our only Office and Factory--105 Home Street 1855-1938 WYCKOFF celebrates its 83rd Anniversary and introduces a NEW EVER LASTING Underground Redwood Steam Pipe Casing Specified by Architects and Engineers, Installed by Leading Contractors Unlined Redwood Casing Showing Socket End Extra Heavy Shell Unlined Underground California All Clear Heart Stock Redwood Casing. Tin Lined Redwood Casing Showing Tenon End Extra Heavy Shell Tin Lined Underground Casing for Steam Pressures over 6 lb made of All Clear Heart Stock California Redwood Made of California Redwood staves (no knots or sap) wound with heavy galvanized wire, covered with a tough, practically indestructible coating of Montezuma Asphalt. Redwood is impervious to water, insects, worms and rofc, gives decades of economical service under the most trying conditions. Wyckoff casings have an enviable record of durability in service as insulation for underground steam or hot water lines and the frost-proofing for exposed pipes. They cannot shrink, swell or warp, and will "stay put" for years. Made in 2 in., 3 in., or 4 in. thick shells with tenon and socket joints in lengths up to 12 ft. Immediate shipment from stock. Write for details and prices of this unique type casing, advising kinds and sizes of metal pipes to be covered. (We also manufacture all clear Redwood Pipe for water supply lines, chemical lines, fume stacks, etc., in pressures up to 172 lb. Sizes 1 in. and up. Lengths to 12 ft.) 1056 Motors Century Electric Company 1806 Pine Street, St. Louis, Mo. Offices and Stock Points in Principal Cities MULTISPEED MOTORS Y% to 200 Horse Power Press the Button--Change the Speed . . . Especially adapted to meet the variable or con stant speed requirements of Fans, Ventilators, Refrigerators and similar apparatus where adjust able speed change is a requirement . . . Built for 2, 3, 4 or more speeds--automatic, push button or manual control . . . Wide or narrow speed ranges, such as 1800/1200 or 1800/600 down to 900/450 rpm (60 cycle) . . . Conventional open or splashvproof type . . . Special speed combina tions are also available . . . Ball Bearings or phosphor bronze sleeve bearings. CENTURY MOTORS For Compressors, Pumps, Fans, Blowers, Refrigerators, Stokers, Oil Burners Type of Motor HorsePower Starting Range Duty Remarks Applications RS--Brush-Lifting 1/8 to 40 BR--Brush-Riding 1/6 to 1/4 CPH--Cap. Start and Run 1/8 to 10 CSH--Cap. Start 1/8 to 3/4 SINGLE PHASE MOTORS Heavy Heavy Heavy Heavy Low Starting Current, High Starting Torque Short Annual Service Characteristics High Starting Torque High Starting Torque Piston or Plunger Pumps. Refrigerators. Stokers. Compressors, etc. CSN--Cap. Start 1 to 10 CPX--Cap. Start and Run 1 to 10 Medium Light High Starting Torque Must be Loaded to at Least 50 per cent Capacity Fans (Belted or Direct Connected) Centrifufugal Pumps, etc. SP--Split Phase SP--Split Phase SC--Squirrel Cage SCN--Squirrel Cage 1/20 to 1/3 1/20 to 1/3 Medium Light Unrestricted Starting Current, Special Serv ice. High Torque Oil Burners. Unit Heat- . ers. Blowers. Fans. Restricted Starting Current. General Pur Small Tools, etc. pose POLYPHASE MOTORS 1/8 to 600 V/% to 200 Medium Medium Normal Starting, Current Normal Torque Lower Starting Current than SC Normal Torque General Purpose Motors. SCH--Squirrel Cage AS--Automatic Start 3 to 200 1 to 60 Heavy Heavy Low Starting Current High Starting Torque Refrigerators. Piston or Plunger Pumps, Com Lower Starting Current than SCH High pressors. etc. Starting-Torque SR--Slip Ring DM-DN-R Shunt Wound Constant Speed DM-DN-R Compound Wound Varying Speed DN-R Shunt Wound Adjustable Speed 1 to 350 Heavy For Frequent Starting and/or Speed Control Fans, Blowers, Centrif ugal Pumps. Com pressors, etc. DIRECT CURRENT MOTORS 1/20 to 300 1/12 to 300 1/2 to 200 Torque is limited only by Commutation. A Direct Current Motor has ample Torque to start any load that it can carry when up to speed. Starting Current is limited by Controller to about 150 per cent of full load current for light starting torque re quirements with corresponding increases in current for increased starting torque Fans, Blowers, Centrifugal Pumps, Machine Tools, etc. Reciprocating Pumps, Com pressors and Machines with Flywheels, etc. Fans. Blowers, Machine Tools, etc. Quiet Starting--Quiet Running--Remarkably Free from Vibration--Keep Themselves Clean Inside--Easy to Keep Clean Outside--Harmonizing Appearance--Century Squirrel Cage Polyphase Motors are Especially Adapted to all types of Air Conditioning Equipment. 1057