Document 3eejEoJXXndNZXaBoadgEdEkE

Welding and Cutting Apparatus The Bastian-Blessing Co. 240 E. Ontario Street, Chicago, 111. Welding and Cutting Equipment Welding is the modern way of making pipe joints, and this process is rapidly gaining the support of engineers and architects who recognize its superior qualities. With -properly welded joints where threads.are usually used the following results may be expected: 1. Increased efficiency in flow. 2. Increased tightness and leak-proofness of joint. 3. Rapid erection and easy alteration. 4. Less dead weight. 5. Decrease in first cost and in cost of upkeep. The most modern skyscrapers have welded piping throughout. A fund of information is available for the asking. Write and state your problems. Welding School Culling New Opening Complete units for both welding and cutting of pipes may be had for as low a price as $75.00. Our complete catalog will be sent on request. Less Expensive Covering 906 Welding In Branch Index to Modem Equipment American Society of Heating and Ventilating Engineers Guide, 1931 ACCESS PANELS (See Panels, Access) ; AIR cleaning equipment American Air Filter Co. 562-563 Mueller Steam Specialty Co., Inc. 856 Herman Nelson Corp. 677-681 O-E Specialty Mfg. Co. 857 Sarco Co., Inc. 858-859 Buckeye Blower Co. 644 Buffalo Forge'Co. 645 W. L. Clayton Co., Inc. 641 Coppus Engineering Corp. 642 De Bothezat Impeller Co., Inc. American Blower Corp. 672 Bayley Blower Co. 643 * Bishop & Babcock Sales Co. 800 AIR FILTERS (SeeAir Cleaning Equipment) 646 Garden City Fan Co. 647 Johnson Fan & Blower Co.' 649 Buffalo Forge Co. 645 Carrier Engineering Corp. 547- 549 AIR HEATING SYSTEMS (See Heating Systems, Air) New York Blower Co. 650 **' Petroleum Heat & Power Co/633 Skinner Bros. Mfg. Co. 690-691 Cooling & Air Conditioning Corp. 550 Garden City Fan Co. 647 AIR MEASURING AND RE CORDING INSTRUMENTS B. F. Sturtevant Co. 651 L. J. Wing Mfg. Co. 652-654 General Iron Works Co. 716-717 Ilg Electric Ventilating Co. 648 Maryland Air Conditioning Corp. American Air Filter Co. 562-563 Bristol Co. 728 E. Vernon Hill Co. 730 BLOWERS, Heating and Venti lating Parks-Cramer Co. 554-555 American Blower Corp. 672 . New York Blower Co. 650 Niagara Blower Co. 552-553 ' Parks-Cramer. Co. 554-555 'Webster Tallmadge & Co.. Inc. American Foundry & Furnace Co. 559 Bayley Blower Co. 643 Skinner Bros. Mfg. Co; 690-691 Strandwitz & Scott 556 Unit Heater & Cooler-Co. 700 United States Blower & Heater Corp. 557 AIR COMPRESSORS (See Com pressors, Air) AIR -COOLING AND DEHU- AIR MOISTENING APPA RATUS (See Humidifiers) AIR PURIFYING APPARATUS American Blower Corp. 672 American Radiator Co. 566-572, 623, 657-659. 702-703. 794-795 Parks-Cramer Co. 554-555 Radi-Ion Corp. 762-763 United States Ozone Co. 762-763 Bishop & Babcock Sales Co. 800 Buckeye Blower Co..644 Buffalo Forge Co. 645 Coppus Engineering Corp. 642 De Bothezat Impeller Co... Inc. 646 Garden City Fan Co. 647' General Electric Co. 758-759 W. F. Hirschman Co.. Inc.902-904 Ilg Electric Ventilating Co. 648 Johnson Fan & Blower Co. 649 M1DIFYING APPARATUS American Blower Corp. 672 Bishop & Babcock Sales Co. 800 Buffalo Forge Co. 645 Carrier Engineering Corp. 547- AIR RECEIVERS (See Receivers, Air) , AIR VALVES (See Valves, Air) Langenberg Mfg. Co. 655 L. J. Mueller Furnace Co. 625 John J. Nesbitt, Inc. 682-685 New York Blower Co. 650 Niagara Blower Co. 552-553 549 Cooling & Air Conditioning Corp. 550 General Iron Works Co. 716-717 Grinnell Co.. Inc. 718-724, 816 AIR WASHERS (See Air Cleaning Equipment) AMMONIA COILS (See Coils, Ammonia) B. F. Sturtevant Co. 651 Thermal Units Mfg. Co. 694 United States Blower & Heater Corp. 557 L. J. Wing Mfg. Co. 652-654 Ilg Electric Ventilating Co. 648 Maryland Air Conditioning Corp. 551 ASBESTOS PRODUCTS (See In sulation) BLOWERS, Pressure American Blower Corp. 672 L. J. Mueller Furnace Co. 625 Buckeye Blower Co. 644 National,,Pipe Bending Co. 710 . New York Blower Co. 650 Parks-Cramer Co. 554-555 AUTOMATIC SHUTTERS (See Shutters, A utomatie) Buffalo Forge Co. 645 Coppus Engineering Corp. 642 De Bothezat Impeller Co., Inc. Peerless Unit Ventilation Co.. Inc. 686-689 B. F. Sturtevant Co. 651 Thermal Units Mfg. Co. 694 Trane Co. 696-697. 775, 784-785. 861 United States Blower & Heater Corp. 557 York Heating & Ventilating Corp. 698-699 York Ice Machinery Corp. 558 BENDS, Pipe Crane Co. 890-891 Edge Moor Iron Co. 590-591 Grinnell Co., Inc. 718-724, 816 National Pipe Bending Co. 710 Parks-Cramer Co. 554-555 Whitlock Coil Pipe Co. 712-713 York Ice Machinery Corp. 558 BENDS, Return (See Pipe, Return Bends) 646 Garden City Fan Co. 647 General Electric Co. 758-759 Ilg Electric Ventilating Co. 648 Johnson Fan & Blower Co. 649 . B. F. Sturtevant Co. 651 BLOWERS, Turbine '.Buffalo Forge Co. 645 Coppus Engineering Corp. 042 Garden City Fan Co. 647 General Electric Co. 758-759 AIR ELIMINATORS BLOWERS,'Fan (See Fans, Sup Johnson Fan & Blower Co. 649 American Air Filter Co. 562-563 C. A. Dunham Co. 670-671, 804- ply and Exhaust) B. F. Sturtevant Co. 651 ' - L. J. Wing Mfg. Co. 652-654. . 815 BLOWERS, Forced Draft W. S. Haines & .Co. 817 Hoffman Specialty Co., Inc. 818- 826 Jas. P. Marsh & Co. 836-853 American Blower Corp. 672 American Foundry & Furnace Co. 559Bayley Blower Co. 643 BOILER COMPOUNDS (See Com pounds, Boiler) BOILER COVERING (See Cover ing. Pipes and Surfaces) Numerals following Manufacturers' Names refer to pages. In the Catalog Data Section 907