Motion Picture News (Oct-Dec 1930)

106 Motion Picture News October 4 , 19 3 0 Exhibition Rise Due to Science (Continued from page 94) is incorrect in some cases. Since theatres are effectively corrected to optimum amount of sound absorption, however, calculations with the old formula will result in correct adjustment in most instances. For sound stage treatment the new method is of importance, as it shows that a very dead set may be obtained by the use of less absorbing material than the older formula would indicate. The effect of distortion on speech sounds during transmission was discussed by Steinberg.231 The treatment considered only the effect on articulation and not at all the tonal quality of the sound. Knudsen232 examined the factors affecting articulation in an auditorium after first discussing the characteristics of speech and hearing. Lindahl233 discussed several of the special acoustical problems of theatres from small 200 seat houses to large 5000 seat houses. Hatschek231 analyzed data on building acoustics of motion picture theatres. Curved surfaces and domes should be avoided, according to Schiffe.235 Carter 23e recommended lining the ceiling and walls with compressed cane fiber board, to reduce reverberation, and leaving spaces in the walls. The proper adaptation of ceiling design with relation to the rest of the auditorium will provide all the audience beyond two-fifths the distance from front to back with equally clear reception.237 Scenery painted on brilliantly colored paper and impregnated against fire may be illuminated either from the front or back and costs less to manufacture.238 A seating system for theatres consists of an automatic switch equipped to light a lamp at both the end of the row and on a chart in the foyer indicating row and seat number.239 A box having an illuminated ground glass over which a continuous length of "score" film (■photographically prepared) is passed eliminates the necessity for a director of a theatre orchestra and insures easy synchronization with the projected picture.240 26 References 20' Kinotechnik. 11 (Oct. 5, 1929), p. S2S. 20S Sci. Amer., 141 (July, 19:9). p. 66. 2°«Licht Bild Biihne. 22 (Aug. 24, 1929), p. IS. 207d'Herbeumont, L. : Cineopse. 12 (Jan., 1930), p. 63. 201 U. S. Pats. 1.714.816: 1.727,900; Brit. Pats. 316.994; 320.817; Fr. Pats. 33.603 (add. 579.679): 656,703; 657,654:658,421; Ger. Pats. 485.075; 485.677. »• Plastische Bild, Nos. 9 and 10 (Sept.-Oct.. 1928), p. 98 . 2,0 Ex. Daily Review and Mot. Pict. Today (Nov. 23, 1929). p. 3. "JAmer. Cinemat.. 10 (Jan., 1930), p. 32. 211 Brit. Pat. 310.527; Fr. Pat. 652.379. 213Kinemat. Weekly. 152 (Oct. 24, 1929). p. 77. 2" Bioscope, 81 (Nov. 13. 1929), p. xvii. 2IS Bioscope, 81 (Nov. 13, 1929). p. 21. 218 U. S. Pats. 1.717.044; 1,723.768; 1,731.490; 1,739,422; Brit. Pats. 310,654; 312,177; 312,645; 313,613; 317,733; 318,276: 318.535; 318.905; 319.284; 319,302; 319.678; Fr. Pats. 643,277; 650,986; 653,320; 659,562; Ger. Pats. 474,057; 481.135; 481,162; 481,163; 481,966; 484,054; and 484,053 (add. 481,162). 217 Mot. Pict. Projectionist. 2 (May, 1929), p. 38. 212 MOTION PICTURE NEWS, 40 (Dec. 7. 1929), p. 32. 212 MOTION PICTURE NEWS. 40 (Oct. 5, 1929), p. 1229. 220 Ex. Herald-World, 96, Sect. 2 (Aug. 31, 1929). p. 40. 221 U. S. Pats. 1.715.381; 1.720.232; 1.734,467; Brit. Pat. 314,719; Fr. Pats. 640.033; 650.027; 653,956; Ger. Pat. 474.451. .-SHELVING OVER SAFE. A gyy ; c Ty? •:-.7 ■•.■••,•.•, Fg '■a:<?\ ^CLOSET DOOR. 4 WITH CYLINDER LOCK, •AAANAGLR'5-OFFICE * W CEILlMG LINE. SHELVING /"REINFORCED CONCRETE. /SAFE DOOR SET PLACE WHEN CONCRETE IS POURED' ^lOOR LIKE 'SLCTION-"b-Ev •SLCTION-'A-A'-' DLTA1L-Qr-/V\ANAGLR:S -OFF CF.-5AFF_ The diagram above clearly depicts a unique arrangement for the concealment of a theatre safe, as used in the manager's office at the Visalia theatre, a Fox house at Visalia, Cal. The dimensions shown depend, of course, on the type of safe used. However, the essential factor is to have 12 inches reinforced concrete surrounding the vault portion. The space above the concrete portion of the safe makes a convenient location for stationery and office supplies. The outside door to the closet is provided with a cylinder lock that cannot be opened by anyone who comes into the office. 222 Fox, D.: Ex. HeraldWorld, 96, Sect. 2 (July 6, 1929). p. 32. 222 Bioscope. 81 (Oct. 23, 1929), p. vii. 221 MOTION PICTURE NEWS, 40 (Nov. 2, 1929), p. 58. 226 Amer. Cinemat., 10 (Mar., 1930), p. 15. 22"Wolf, S. K.: Acad. Tech. Digest, Hollywood, Cal., 1930, p. 109; also J. Soc. Mot. Pict. Eng.. 14 (Feb., 1930), p. 151. 227 Kellogg, E. W.: J. Soc. Mot. Pict. Eng., 14 'Jan.. 1930), p. 96. 228 Friend, W. K.: (Feb. 15. 1930). p. 9. 222 Wente, E. C: p. 19. 22» Schiffe, R.: Kinemat. Weekly. 153 (Nov. 14, 1929). p. 41. 222 Carter, W. L.: Kinemat. Weekly. 152 (Oct. 31, 1929), p. 58. 227 Cooke, H. L.; J. Franklin Inst.. 208 (Sept., 1929). p. 319. 228 Mot. Pict. Projectionist, 3 (Nov.. 1929), p. 43. 222 MOTION PICTURE NEWS, 39 (June 1, 1929). p. 1838. ""Adam, M. : Filmtechnik, 5 (Jan. S, 20, 1929). pp. 13 and 31. Ex. Herald-World, 98. Sect. 2 Project. Eng., 1 (Sept., 1929), 230 Eyring, C. F.: T. Acoustical Soc. Amer., 1 (Jan., 1930), p. 217. 221 Steinberg. J. C: (Oct., 1929), p. 121. J. Acoustical Soc. Amer., 1 222 Knudsen, V. O. : Acad. Tech. Digest. Hollywood, Cal. (1930), pp. 18 and 45. 222 Lindahl. R. L.: Ex. HeraldWorld. 96, Sect. 2 (Aug. 3. 1929). p. 41; ibid.. 96, Sect. 2 (Aug. 31, 1929), p. 31; ibid., 98. Sect. 2 (Mar. 15. 1930), p. 33. 5,4 Hatschek. P.: Kinotechnik. 11 (Sept. 20, 1929), p. 489. Cutler 'Hammer Branch Moves Philadelphia — Local sales office of Cutler-Hammer now is on the tenth floor of the new Terminal Commerce Building. The quarters also include warehouse facilities where a stock of the C-H motor control, wiring device and safety switch will be carried for immediate delivery. F. J. Burd is manager of this district for Cutler-Hammer.