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1、BRITISH STANDARD BS 5550-1.11.1: 1979 ISO 3653:1978 Cinematography Part 1: 8 mm film Section 1.11 Spindles Subsection 1.11.1 Specification for dimensions of spindles for 8 mm Type S motion-picture projector spools UDC 778.5.068.24:778.533.4.068 Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04
2、13:22:59 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5550-1.11.1:1979 This British Standard, having been prepared under the direction of the Cinematograph Standards Committee, was published under the authority of the Executive Board and comes into effect on 31 August 1979 BSI 04-2000 The following
3、 BSI references relate to the work on this standard: Committee reference CMS/28 Draft for comment 77/64906 DC ISBN 0 580 10862 7 Cooperating organizations The Cinematograph Standards Committee, under whose direction this British Standard was prepared, consists of representatives from the following G
4、overnment departments and scientific and industrial organizations: Association of Cinematograph, Television and Allied Technicians* British Broadcasting Corporation* British Film Institute* British Kinematograph, Sound and Television Society* British Photographic Association Chartered Institution of
5、 Building Services Cinematograph Exhibitors Association of Great Britain and Ireland Film Laboratory Association Limited Film Production Association of Great Britain Health and Safety Executive Independent Television Companies Association Royal Photographic Society* The organizations marked with an
6、asterisk in the above list, together with the following, were directly represented on the committee entrusted with the preparation of this British Standard: Association of Independent Cinemas British Amateur Cinematographers Central Council Department of Education and Science Lighting Industry Feder
7、ation Limited National Association of Theatrical, Television this is not being reproduced as a dual-numbered British Standard but can be obtained from BSI. BS 5550 is to encompass eventually all British Standards on cinematography. BSI Sectional List 1, obtainable free from the BSI Sales Department,
8、 catalogues the British Standards on cinematography. The latest edition of SL 1 should be referred to particularly in this developing situation. Terminology and conventions. The text of the International Standard has been approved as suitable for publication, without deviation, as a British Standard
9、. Some terminology and certain conventions are not identical with those used in British Standards; attention is especially drawn to the following. Where the words “International Standard” appear, referring to this standard, they should be read as “British Standard”. The comma has been used in some p
10、laces as a decimal marker. In British Standards it is current practice to use a full point on the baseline as the decimal marker. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compl
11、iance with a British Standard does not of itself confer immunity from legal obligations. Cross-references International StandardCorresponding British Standard ISO 1700:1972BS 5550 Cinematography Subsection 1.1.1:1978 Specification for cutting and perforating dimensions of 8 mm Type S motion-picture
12、raw stock film (Identical) ISO 3639aBS 5052:1973 Projector spools for 8 mm Type S and 8 mm Type R spools for motion-picture film a In course of preparation. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 and 2, an inside back cover and a back c
13、over. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 13:22:59 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5550-1.11.1:1979
14、BSI 04-20001 1 Scope and field of application This International Standard specifies the dimensions for 8 mm Type S motion-picture projector supply and take-up reel/spool spindles. 2 References ISO 1700, Cinematography 8 mm Type S motion-picture raw stock film Cutting and perforating dimensions. ISO
15、3639, Cinematography Projection reels for 8 mm Type S motion-picture film Dimensions and specifications. 3 Dimensions 3.1 The dimensions shall be as shown in the figure given in the table. 3.2 The use of spindles in 8 mm projection equipment is not necessarily restricted to reels operating in the ve
16、rtical mode. Because horizontal mode is possible, it is not necessary that the spindle protrude completely through the projection reel. Therefore, a reference dimension is supplied primarily for vertical mode design. When horizontal mode operation is considered, the minimum spindle length shall be g
17、overned by the minimum lug protrusion dimension B. 3.3 If the manufacturer desires to round, taper or point the end of the spindle, this may be done at his discretion, using any value needed for aesthetic or other design considerations; hence dimension E is optional. 3.4 The shape and amount, if any
18、, of the extension of the drive lug beyond dimension B is optional with the manufacturer, provided that it does not exceed dimensions C and D. 3.5 A minimum spindle shoulder diameter is provided by dimension G. Good design practice would place any reel-locking device of the spindle outboard of the w
19、idth of the projection reel at the spindle hole, possibly forcing the reel against the shoulder. The maximum for dimension G is intentionally less than the minimum diameter of the corresponding surface of the reel, to allow for run-out tolerances of both the spindle and reel, and for a loose fit of
20、the reel on the spindle. 3.6 A radius is permitted on the drive lug equivalent to half its width (dimension F) in order to allow manufacturers to use a variety of construction methods or materials. The dimension D specified is for a drive lug with no radius (i.e. flat). Any radius (R1) utilized by t
21、he manufacturer may be added to dimension D, so the maximum overall span of the spindle plus lug becomes D + R1. The dimension D + R1 should not exceed 16,2 mm (0.638 in). 3.7 The use of three driving lugs equally spaced at 120 around the spindle is not restricted by this International Standard. How
22、ever, the width and height tolerances of the lug have not been adequately accounted for if such a design is incorporated. If the manufacturer chooses to utilize this approach, he is referred to 8 mm Type S projector reel specifications (see ISO 3639) to ensure adequate fit. 3.8 Unique spindle design
23、s are not restricted by this International Standard. The use of three or more bearing surfaces can be allowed provided that they perform the same function as a cylinder of diameter A. Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 13:22:59 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5550-1
24、.11.1:1979 2 BSI 04-2000 Dimensionmmin A (see 3.8)12,700.500 B (see 3.2)4,0 min.0.16 min. C (see 3.2)14.0 ref.0.55 ref. D (see 3.6) 14,2 0.56 D1 (see 3.6)16,2 max.0,638 max. E (see 3.3)OptionalOptional F1,40 max.0.055 max. G16,00 min.0.630 min. 24,50 max.0.965 max. R1 (see 3.6)0,7 max.0.03 max. R20,
25、20 max.0.008 max. 0 0,25 0 0.010 +1,5 0 +0.06 0 Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 13:22:59 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5550-1.11.1:1979 BSI 04-2000 Publications referred to See national foreword. Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 13:22:59 G
26、MT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5550-1.11.1: 1979 ISO 3653:1978 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the internat
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34、ermission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel: 020 8996 7070. Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 13:22:59 GMT+00:00 2006, Uncontrolled Copy, (c) BSI