The Exhibitor (1950)

to meet the needs 0f tomorrow'. (MC Efficient planning of stage curtain on. ■fk QnfymL KROEHLERlSsftW THEATRE SEAT years of proof-in-use in America’s leading theatres! Fully protected by patents LIGHTING EQUIPMENT DRINKING FOUNTAINS EXIT & DIRECTIONAL SIGNS Theatre Lighting Specialists Since 190 3 1649 N. Broad S». Phila. 22, Pa. STevenson 4-0600 VOIGT CO. QUALITY and SERVICE Superlite ound Screen P«rf#r*t «d -While diffus i ve v c*tu> Super -m • j \ 7b calite VSound Screen CKiSTA-L BEADED VOCALITE SCREEN CORP. ROOSEVELT, N. Y. Advances In Projection (Continued from page PT-5) reduction in heat and to indicate that 78-80 ampere operation did not bring about damage to the film. This develop¬ ment also proved itself in practice, and, along with other technological improve¬ ments in the field, served to push upward the ceiling on what was formerly thought to be the absolute maximum light output of the projection beam in view of the accompanying heat. The Brenkert Supertensity A-4 On the other hand, RCA also intro¬ duced an “air-conditioned lamp” of the super high intensity type, designed par¬ ticularly to handle the new National 13.6 mm. -180 ampere carbon. The basic design of this lamp incorpor¬ ates two air ducts, which convey an air supply to both the positive and negative feed mechanisms, together with an overall double shell construction to supply an in¬ sulating air chamber around the entire lamp house. Although the normal heat baffle behind the carbon crater is heat resistant, a lamp with a water-cooled heat baffle has been made available as well. Due to the fact that both the lamp and projector are air cooled, no glass filters are required, even if the full 180-ampere potential is used. Since its initial installa¬ tion at two midwest drive-ins, this lamp, designed to go with the large Brenkert-80 projector, has chalked up a good record of high screen surface lighting in large operations. Its balanced magnetic field feature has also met with hearty enthusiasm. PROJECTION EQUIPMENT The Century Water-Cooled Projector In close collaboration with the Ash¬ craft lamp, Century Projector Corpora¬ tion carried essentially the same method of water cell cooling into the projector head. Although initially designed primarily for the larger lamp of 80 to 180 amperes, the Century water-cooling cell is situated between the rear shutters and the aper¬ ture. It is, however, separated from the latter by an open space to eliminate the need of heat filters. Successfully tested and installed in a number of theatres, it has accomplished much toward the recov¬ ery of some of the light lost through heat filters with resulting improvement in screen brilliance, albeit at lower carbon and current consumption costs. The Simplex X-L Projector And Sound System Officially introduced during the early days of 1950, the Simplex X-L Projector was the International Projector Corpora¬ tion’s outstanding contribution to the advancement of projector design. The re¬ sults of a painstaking five-year period of development and experiment were evi¬ dent in such innovations and modern adaptations as the “Screenscope” for pin¬ point focusing, the conical shutter, the four-inch lens mount, and a greatly sim¬ plified lubrication system. In conjunction with the above, Inter¬ national Projector Corporation also re¬ cently presented its new Simplex X-L Sound System with many new devices to provide easier installation, more efficient servicing, greatly improved operation, and longer life. Ingenious electronic develop¬ ments have produced superlative quality of tone, while an improved circuit design and other engineering advancements have been incorporated in the X-L system to do away with disturbance and distortion. Both the Simplex X-L Projector and Sound System have become in a com¬ paratively short time the subject of much industry interest, and the comments from quarters where installations have already been made augur well for their future. The "RCA 100" Projector Said to be the finest ever produced by the Brenkert Light Projection Company, the new “RCA 100” Projector was placed on the market only recently. However, its many advantageous factors, such as the use of nylon rollers in the film compart¬ ment, an illuminated gear compartment, soft interior lighting, and a lens mount designed to accommodate the new fourinch lenses, have already met with wide approval. The standard Brenkert automatic lubri¬ cation has been retained in the new model along with the traditional sturdy intermit¬ tent mechanism and heavy-duty gearing of the Brenkert BX 80 projectors. SCREENS The "Cycloramic" Screen Last year at this time there was talk of a new woven screen to be introduced by B. F. Shearer Company at the TESMA Show in September. This proved to be the new “Cycloramic” unperforated screen with excellent sound transmission, light reflection with little side distortion at wide viewing angles, and elimination of back -stage reverberation. Glascreen When the Glascreen, product of NuScreen Corporation, was first introduced, it attracted considerable attention because of its loosely woven glass fabric with no perforations. The excellent sound trans¬ mitting and reflective qualities claimed for it at the time of its introduction appear to have been borne out in practice, for numerous installations have been made. Other Screens Most notable among the other types of screens developed during the past year was the new RCA “Snowhite” plastic screen with its high reflective powers, freedom from glare, resistance to mois¬ ture, and extreme resiliency. According to reports from the field, installations are progressing at a rapid rate. In addition, such screen manufacturers as Radiant, Da-Lite, and Raytone have developed new and improved screen models, mainly for use in the audio¬ visual field. CONCLUSION ' A host of other new introductions dur¬ ing the past year or so have, for the most part, proved themselves to be of com¬ mendable value to the industry. Notable among them are the Forest Electronic Lamp, which marked the first departure from the mechanical feeding of carbons, and the Motiograph-Hall Arc Lamp, utiliz¬ ing the rotating principle of carbon assembly. It is reasonable to believe that the future will bring forth many other new and interesting developments in the field of projection and sound. The industry is fortunate in having an enterprising and conscientious group of equipment manu¬ facturers allied with it who are thoroughly bent on devoting every facility and dollar PHYSICAL THEATRE DEPARTMENT of EXHIBITOR June 28, 1950 PT-16