Exhibitor's Trade Review (May-Aug 1925)

Page 52 Exhibitors Trade Review Be Your Own Printer Print YOUR OWN PROGRAMS — HANDBILLS PLUGGERS— ANNOUNCEMENTS Keep your patrons informed of your future programs -utilize your spare time by advertising your business. Write for estimates on our printing outfits GLOBE TYPE FOUNDRY 956 West Harrison St. Chicago, Dl. Robert P. Carsen Scenic Studios CONSTRUCTORS, DESIGNERS and PAINTERS of PICTURE and STAGE SETTINGS Specializing in renting scenery for professional and amateur productions. FABRIC SETTINGS ELECTRICAL EQUIPMENT THEATRICAL HARDWARE and SUPPLIES 1507 No. Clark Street CHICAGO, ILL. Phone all Depts. Delaware 6022; Office, Superior 1832 I BU BUILDERS OF STANDARD Sl^ji ORGANS' 1835 Viner Organs Fill Every Requirement of the Motion Picture Theatre RICHNESS OF TONE— COMPLETE ORCHESTRATION SEND FOR FULL INFORMATION VINER & SON 1375 NIAGARA ST., BUFFALO, N. Y. —PROJECTION Optics, Practical Ideas and Electricity By WESLEY TROUT Better Equipment and Projection Pays The slogan "Better Equipment and Projection Pays" should be adopted by every equipment dealer and manufacturer. This line should be run in all advertisements possible, on letter heads, bill heads and catalogues. If this were done results would be sure. It is going to take persistent effort to prove to the exhibitor that good screen results can be had with high class projectors and other equipment, and not \vith projectors or generators that have been in use years and years. Good projection means more dollars at the box office. Much damage is done to films by the use of out-of-date projectors, the intermittent movement being so worn that the projectionist has to use entirely too much tension. Projectors should be replaced every three years where they are run from eight to ten hours a day. Old projectors require so much repairing and parts after three years that it is false economy in trying to secure any lbnger service from them, and you cannot secure anywhere near good projection with them. Projectors and other equipment, such as generator sets, screen, high grade lenses and change-over devices can be purchased from any large equipment dealer on time payment plan, and you can purchase on very, very satisfactory terms. Don't purchase rebuilt projectors as they will never, never give you good screen results. Good projection depends upon properly installed screen, projectors, correct size condensers and good objective lenses. The correct amount of light should be used to cover a certain size screen and that amount always depends upon plenty of amperage up to a certain point. A first class projectionist can tell when the picture is plenty bright, but he must have a first class generator set with control handle located on. the front wall of the projection room so that he can vary the amperage for light and dark scenes. Other equipment and devices should be arranged in a convenient manner, then you can secure good projection on the screen. Motor generator set should be installed in a room adjoining the booth. * * * New Rectifier for Low Intensity Arcs The great popularity of the reflector type of arc lamps for motion picture projection has been responsible for the development of the Unitron motion picture rectifier for furnishing direct current for the reflector type arc lamps. This new device is claimed by its makers to constitute a simple, practical and very efficient rectifying equipment for furnishing direct current from an alternating current supply. The new rectifier is manufactured in standard models to operate from 110 volts and 220 volts, 60 cycles, single phase alternating current. The amperage consumed from the 110 volt circuit is about 7 amperes, that from the 220 volt circuit only 3J4 amperes. The maximum to the arc lamp is 15 amperes. The absence of mechanical working parts is claimed by the manufacturers to constitute a trouble eliminating feature. The device is well constructed and should give the exhibitor and projectionist very pleasing results and long service with proper care. Low purchase and operating cost, steady arc, absence of noise and vibration are the good features of this new rectifier. It is a much needed device for users of the new reflector arc lamps. * * * A Patching Light for Mending The best patching light I have found is to mount a piano convex condenser in your rewind table with the flat side facing you and put in a 10 Watt lamp (Properly boxed in metal) under it and you will have a mighty fine patching light, much better than using a plain piece of glass. * * * The Motsco Mazda Adapter The Monarch Theatre Supply Co., Chicago, recently sent me some data on their new Motsco Mazda Adapter, and they inform me that this new Adapter is going over "big." This Adapter can be used in any of the projection machines now on the market, most any projectionist can easily install same in his lamphouse in a few minutes. This Adapter is entirely different than any other Adapter now on the market. The Monarch people also manufacture a Regulator for use on alternating current for the reducing of the 110-volts down to 30-volts and 32 amperes; it is well constructed and will give the exhibitor very pleasing results, and the price is RIGHT. The Monarch Co., (Continued on Page 54)