International projectionist (Oct 1931-Sept 1933)

28 INTERNATIONAL PROJECTIONIST June 1933 Erpi Theatre Contract Held Illegal {Continued from 'page 22) could dictate to both its exhibitor and producer licensees the terms under which the W. E. equipment, or the product thereof, might be used. In effect the ruling decrees an open market for all replacement parts, whether or not they are to be used with W. E. equipment. Although Erpi denies that the decision in any way affects the servicing situation, well-informed opinion in the trade is confident that the issue of compulsory servicing is next in line for judicial determination. The decision, in part, follows: Motions for preliminary injunctions are made on behalf of plaintiffs in three equity suits brought under section 16 of the Clayton act to restrain defendants from alleged violations of section 3 of that act and of sections 1 and 2 of the Sherman act. In their main briefs plaintiffs state the measure of relief sought by these motions for preliminary injunctions. "It is therefore submitted that an in junction pendente lite should issue herein in all three cases enjoining and restraining the defendants from enforcing directly or indirectly the restrictive clauses of the so-called leases of reproducing equipments, whereby the exhibitors are required to obtain exclusively from Products (Electrical Research Products, Inc.) all repair and replacement parts for said equipments and to permit Products to inspect the same and charge the Exhibitor therefor, under the guise of rendering service thereto. In addition, in the suit of the Duovac Company, an injunction should issue pendente lite enjoining and restraining the defendants from directly or indirectly enforcing any of the previsions of the producing license agreements whereby the producing licensees of Products are required to obtain exclusively from Products repair and replacement parts for reproducing apparatus." Competitive Angle Stressed The motions deal with covenants in agreements the effect of which may be to substantially lessen competition in interstate commerce in the talking motion picture business. Roughly, that business is handled by the manufacturers, the producers and the exhibitors. The manufacturers make the recording equipment for the producers of films. This equipment records sound and photographs action in timed relation on the films. The manufacturers also make reproducing equipment meant for the exhibitors. This equipment synchronously reproduces the sound and projects the action on the theatre screens. The producers use the recording equipment in producing the films. The exhibitors use the reproducing equipment in the theatres. The plaintiff, Stanley Company of America, Inc. (Delaware), is a subsidiary of Warner Brothers. It is an exhibitor, owning a chain of about 150 theatres. The plaintiff, Duovac Radio Corp. (Delaware), is engaged in the manufacture of electrical devices, including vacuum tube amplifiers and photo electric cells. The plaintiff. General Talking Pictures Corporation Delaware) is a manufacturer of talking motion picture equipment. In each case the defendants are the Important New Books In The Field THEORY OF THERMIONIC VACUUM TUBES FUNDAMENTALS— AMPLIFIERSDETECTORS BY E. LEON CHAFFEE Professor of Physics, Harvard University A thorough and authoritative treatment of vacuum tube fundamentals containing much new and hitherto unpublished material. It covers the foundation of the subject fully and should be of high reference value to engineers concerned with any branch of vacuum tube technique. 666 pages, 6x9, fully illustrated. ^6.00 RADIO ENGINEERING BY FREDERICK EMMONS TERMAN Associate Professor of Electrical Engineering, Stanford University Gives a comprehensive engineering treatment of the more important vacuum tube and radio phenomena. The first part is devoted to the theory of tuned circuits and the fundamentals properties of vacuum tubes and vacuum tube applications, in the light of their importance and interest to every electrical engineer. The latter part takes up more specialized radio topics, such as radio receivers and transmitters, wave propagation, antennas, and direction finding, as well as aids to navigation, radio measurements, and sound and sound equipment. 688 page, 6x9, 417 illustrations. ^5.00 RADIO ENGINEERING HANDBOOK Prepared by a staff of 22 specialists. KEITH HENNEY, Editor-in-Chief Associate Editor, Electronics This book makes available to the radio field an engineering handbook measuring up to all the standards of competent authorship, carefiul and thorough selection of material, and accuracy of presentation, to be found in other McGraw-Hill handbooks in Various fieldjs of engineering. Here is a fund of constantly needed reference material covering all fields of radio engineering, from fundamentals to latest practical applications. 583 pages, iVz x 7, 507 illustrations. ^5.00 THE PRINCIPLES OF OPTICS By Arthur C. Hardy, Associate Professor of Optics and Photography, and Fred H. Perrin, Instructor in Physics, Massachusetts Institute of Technology Combines the purely mathematical with the practical treatment of optics, and emphasizes the design of optical instruments. Designed chiefly as a college text book for students of physics, it can also be used as a reference work for specialists in the fields of illumination, optometry, motion pictures, television, etc. 600 pages, 6x9, illustrated. ^6.00 Order from INTERNATIONAL PROJECTIONIST 580 FIFTH AVENUE NEW YORK, N. Y.