Projection engineering (Sept 1929-Nov 1930)

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Projection Engineering, September, 1929 Page 57 FOR AUTHORITATIVE COUNSEL MANY times, a suggestion from the outside — an unbiased opinion — saves needless loss of time and money. The complete resources, the combined experience of the engineers of the Perryman laboratories are available to help you solve your vacuum tube problems. This group developed and perfected the famous Patented Perryman Bridge and Tension-Spring now incorporated in Perryman Radio Tubes. Submit your problem in writing, giving complete details. Your letter will receive our immediate attention. The recommendation of our laboratories will be forwarded to you within one week. ERRYMA RADIO Laboratories falB and Plant Hudson Boulevard, North Bergen, N. J. The Tube with the Patented Perryman Bridge Acme Wire Products Parvolt Filter and By-Pass Condensers Coils — Magnet Wire Wound Varnished Insulations Magnet Wire — All Insulations All products made to Recognized Commercial Standards, including those of: National Electric Mfrs. Assn. Radio Manufacturers Assn. American Society for Testing Materials For 25 years manufacturers and suppliers to the largest and most discriminating users. The Acme Wire Co. NEW HAVEN, CONN. Branch Offices New York Cleveland 52 Vanderbilt Ave. Guardian Bldg. Chicago 842 N. Michigan Ave. The Lock-Up Fig. 673 — "Hallowell" Steel Bench Drawer Without Cover — for Wooden Top Work — Benches and Tables The cut on the left shows the "HALLOWELL" Steel Bench Drawer as it looks when ready for business. Its construction is such that it can be placed wherever most convenient. Fig. 849 — "Hallowell" Steel Bench Drawer for Steel Topped Work-Benches and Tables Key: A — Runner; B — Master Keyed Lock; C — Catch for Bolt of Master Keyed Lock; D — Tray; E — Cover. A work bench without a "HALLOWELL" Steel Bench Drawer and a suit of clothes without pockets aren't just right — somehow. Without a Drawer the Bench is soon littered with tools and looks a mess and the first thing you know tools will be missing, time will be wasted, jobs delayed and profits reduced. A "HALLOWELL" Steel Bench Drawer holds all of your tools, you turn the key and they are safe and ready at hand the moment you need them. Four standard sizes carried in stock. Just write for full information and BULLETIN 386 Standard Pressed Steel Co. JENKINTOWN, PA. Box 533 Branches : BOSTON DETROIT CHICAGO NEW YORK SAN FRANCISCO ST. LOUIS