Radio Broadcast (Nov 1926-Apr 1927)

320 RADIO BROADCAST ADVERTISER The Bodine De Luxe Loop fulfills perfectly the long felt need for a compact beautiful loop — outstandingly efficient. The symmetrical frame of solid walnut, handrubbed to a beautiful finish, black bakelite mountings, and attractive silk covered windings combine in producing a loop of outstanding beauty. Despite its compact size the De Luxe Loop brings in stations with amazing power. Sharper selectivity due to directional tuning improves tone quality. Designed for standard loop sets but can be used effectively with most aerial sets. Write for free illustrated booklet that tells how. Price, Bodine De Luxe Loop, all models, $12.00. Bodine Folding Loop Exceptionally directional, remarkably efficient. Because of the Basket-weave method of winding the Bodine Folding Loop brings in the long distance stations. Sliding sleeves conceal the hinges of the English Mahogany frame in operation. Folded it fits a box only 3J" x 6" x 18". Ideal for camping too ! Holds shape under long service. Price, Bodine Folding Loop, $8.50 to $10.00. Bodine Twin-Eight R. F. Transformers Greater amplification, less interference with other parts, sharper selectivity, are features of these improved coils that amaze manufacturers and set builders alike. No type of toroidal or doughnut coil can compare with Twin-hights. Improves all tuned radio frequency hookups. Compact and small, easy to install. The boon of amateur set builders. Write for hookup of the Bodine TwinEight Receiver which uses Twin-Eight Coils. Buy Twin-Eight Coils from your dealertoday. Price $2.00 per coil, three matched coils $6.00. Mail the Coupon e is RDINARILY it is considered legitimate for any person or firm to adopt and use a well-known and popular trade-mark, provided its use is confined to goods or merchandise of an entirely different class from those sold by the original user. With such protection the public is not likely to purchase the goods of the later user of the trade-mark, believing them to be the product of the former user. For example, if " Eata" is recognized as a trade-mark for bread there is nothing to prevent its use by another firm as a trade-mark for automobiles or other products not of the same or kindred class of goods. This is true, because no one is likely to be deceived into purchasing an automobile thinking it is made in a bread-maker's factory, and therefore, no harm usually can come to the original user of the mark "Eata." A recent higher United States Court trade name case that is particularly interesting from the viewpoint of the restricted use of a trademark adopted for use on a somewhat different class of merchandise is that of " Rolls-Royce" for radio tubes. The Rolls-Royce Company of America, manufacturers of high-priced automobiles and aeroplane engines, instituted legal proceedings against Howard Wall, doing business under the name of the Rolls-Royce Tube Company, to prevent the use of the name " Rolls-Royce" in carrying on his regular business. In this specific case, irrespective of the remarks in the foregoing paragraphs, the court restrained the use of the name " Rolls-Royce" as a trade-mark for radio tubes, and also as a part of the name of the company that was selling them. It appeared that the Rolls-Royce Tube Company had met with considerable success in selling Rolls-Royce radio tubes by mail. The tubes were simply marked " Rolls-Royce" without other indications to show where or by whom they were manufactured. Also, in advertising the tubes, the words " Rolls-Royce" were used alone in quotation marks with the statement following "Like Their Name, Significant of Quality." The advertisement directed correspondence to be sent to ' Dept. A. of the RollsRoyce Tube Company," thus giving the suggestion that the business comprised this and other departments. The court decided that, inasmuch as the tubes bore only the name Rolls-Royce, with nothing else to indicate their origin, and as electricity is a vital element in automobiles, purchasers of the tubes might suppose the original RollsRoyce Company had extended its high-grade products to include radio tubes. If the RollsRoyce radio tubes proved unsatisfactory, it would tend to destroy, in the minds of the purchasers, the excellence of the product for which the words " Rolls-Royce" heretofore stood. The court further said, in effect, that it is quite possible the use of the name " Rolls-Royce" might lead uninformed persons to believe the original Rolls-Royce Company stands financially behind the Rolls-Royce Tube Company, which impression, in the event that the radio tube business was not carried on successfully, might cause the name "Rolls-Royce" to suffer accordingly. The use of the words " Rolls-Royce" in connection with radio tubes was, therefore, enjoined. Leo. T. Parker. Examined and approved by Radio Broadcast -At ImproveYourSetlOO% jfrERI fo-fgSS SHIELDED TUNED RADIO TRANSFORMERS [SELECTIVITY "I QUALITY i DISTANCE J $g.00 Per Set Feri Lo-Loss Shielded Coils — Low distributed capacity, low dielectric losses and many other fea* tures insure unequaled results. Can be mounted either above or below sub'base Panel. Wiring Diagram and instructions supplied with each set of three. Send for Description matter on other Feri Products FERI RADIO MFG. CO. 1167 Bedford Ave. Brooklyn, N. Y. RADIO PANELS OF GENUINE BAKELITE Cut, drilled and engraved, to order. Send rough sketch for estimate. Our New Catalog on Panels, Tubes and Rods — all of genuine Bakelite — mailed on request. STARRETT MFG. CO. ^ 521 S. Green Street Chicago, 111. WE ESTABLISH YOU Co-operative membership in EIA is establishing an honest and industrious man in each locality, regardless of his handicaps or present occupation, in a successful radio industry of his own. Young married men preferred. Apply by confidential letter to EQUITABLE INDUSTRIES ASSOCIATION, Dept. B-17, Tribune Bldg., New York HAMMARLUND-ROBERTS All Parts in Stock Exactly as Specified $63.20 Also complete stock of Silver-Marshall parts as well as most of the better circuits. Shipments made same day order is received. Professional Set Builders try our discounts. 52-page Catalog Free SHURE RADIO CO. 19E-21 S. Wells St. Chicago. 2S World Radio Storage "B" Battery 12 Cell-24 Volt Proved value. Thousands of users find reception almost magical. Clear, true power— instantly and unendingly. Wise economy. Sturdy construction— Solid Rubber Case protection. Recharged for almost nothing. Endorsed and listed as standard by famous Radio institutions including Pop. Radio Laboratories, Pop. Sci. Inst. Standards, Radio News Lab., Lefax, Inc. , and other Radio authorities. What more need be said? Extra Offer; 4 Batteries in series (96 volts) $10.50. Remember — yo 1 2 1 9 So. Wabash Ave. Dept. 78 Chicago, IlL Makers of the Famous World Radio "A" Storage Battery Prices: 6volt, 100 Amp. 910.00; ISO Amp. flJ.OO: lid Amp. SIS, 00 Alt equipped with Solid Rubber Case. (i^Set pour radio (Hals at 288.3 meters for theWorld Storage Bat,R> «Ssa tery Station WSBC. Varfrtv-NewTalent -Always Int.r.-wtimr. Kcr <y> Jkrry Sullivan -Director ami Announcer — "Ohi-CAW-ico" (y>