We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.
Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.
V. Lens Barrels The matter of the standardization of the external diameters of lens barrels has been referred to the Projection Machines Committee and to the Optics Committee. The Optics Committee has recommended two and one thirty-second (2 1/32) of an inch for number 1 projection lens, and two and twenty-five thirty-seconds (2 25/32) for a number 2 lens. Owing to the wide variation of interests, the Projection Machines Committee has as yet been unable to come to any decision. In fact, there seems but little chance of a unanimous agreement on these dimensions, tho the desirability of such an agreement is universally admitted.
VI. Notching Distance This dimension, once so urgently brought before the Society for standardization, has been temporarily laid on the table pending patent settlements.
W. E. Story, Jr., Chairman
Action of the Society on the Report of the Committee on Standards
The various items in the report of the Committee on Standards were taken up individually and discussed at length. A vote was then taken on each item to decide whether the Society would officially approve or reject the recommendations of the Committee. The following list contains the items officially approved.
Dimensional Standards
(1) Frame line
(a) Standard Film. The center of the frame line shall be half way between two successive perforations on each side of the film.
(b) Safety Standard Film. The center of the frame line shall pass thru the center of a perforation on each side of the film.
(2) Lantern Slide Mat Opening. Three (3) inches (76.20 mm) wide by two and one quarter (234) inches (57.15 mm) high.
(3) Motion Picture Aperture
(a) Standard Film. Ninety hundred and sixty ten thousandths (.9060) of an inch (23.01 mm) wide by sixty-seven hundred and ninety-five ten thousandths (.6795) of an inch (17.26 mm) high.
(b) Safety Standard Film. Seven hundred and forty-eight thousandths (.748) of an inch (19.00 mm) wide by five hundred and fifty-one thousandths (.551) of an inch (14.00 mm) high.
(4) New Perforated Motion Picture Film (See cut).
Standard Safety
Standard
(a) Width 1.375,,(34.92mm) 1.102"(27.99 mm)
(b) Width between centers of sprocket
holes. 1.109/,(28.17mm) .874,/(22.20 mm)
188