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है”ह”ह
IS 11577 (1985): Dimensions for projectable reels for 8 mmtype S motion picture film for use with projectioncassettes [MED 32: Photographic Equipment]
IS:11577 -1985
Indian Stand&d DIMENSIONS FOR
PROJECTION REELS FOR 8 mm TYPE S MOTION-PICTURE FILM FOR USE WITH
PROJECTION CASSETTES
Cinematographic Equipment Sectional Committee, ETDC 47
Members
SHRI S. N. A~ARWAL
Chairman
SHRI B. A. MISTRY 15, Parsee Panchayet Road
Ministry Apartments, Bombay
Representing
Cinecita Pvt Ltd, Bombay SHRI S, P. AGARWAL ( Alternate )
SHRI R. S. ARORA Directorate General of Supplies & Disposals, New Delhi
SHRI D. L. TALURAR ( Alternate ) SHRI S. C. BATRA Directorate of Technical Development and Produc-
tion ( Air ), Ministry of Defence, New Delhi SRRI R. P. AGARWAL ( Alternate )
SHRI N. P. BHATTACHARYA Department of Teaching Aids, National Council of Educational Research and Training, New Delhi
SHRI BHUPAN GHOSH Cine Mechanical Works, Calcutta SHRI MANNA LADIA ( Alternate )
SHRI Y. R. CHAUHAN Cine Sales Corporation, Delhi SHRI R. S. CHAUHAN ( Alternate )
SHRI B. P. GHOSR National Test House, Calcutta SHRI B. C. MUK~ERJEE ( Alternate )
SHRI M. C. MANI Photoohone Pvt Ltd. Bombay SHRI A. B. KUCHERIA ( Alternate )
SHRI JAL P. MISTRY International Talkie Equipment Co Pvt Ltd. Bombay
SHRI DIPAK B. ADALJA ( Alternate ) SHRI N. NARAYANA RAO Ministry of Defence ( DGI )
SHRI D. R. DHIMAN ( Alternate ) SHRI K. RAJCOPAL CHETTY Devi Cine Projector Manufacturing Co, Madras
SRRI K. N. GNENAPRAOASAM ( Altcrnatc )
( Continued on page 2 )
@ Cofirigh: 1986
INDIAN STANDARDS INSTITUTION
This publication is protected under the In&n Copyright Act ( XIV of 1957 ) and reproduction in whole or in part by any means except with written permission of the uublisher shall be deemed to be an infrinaement of copyright under the said Act.
IS : 11577 - 1985
( Continued from page 1 )
Members SHRI K. N. RA~V~ASWAMY
Representing
Directorate General of Technical Development, New Delhi
SEIRI BALRAJ BHANOT ( Alternate ) SHRI RAM PRASAD National Physical Laboratory ( Optics Division )
( CSIR ), New Delhi SHRI SATISH KUMAR Film and Television Institute of India, Pune
SHRI P. V. K. REDDY ( Alternate ) DR S. P. SIN~HAL National Physical Laboratory ( Acoustics Division )
( CSIR ), New Delhi SHRI G. SINHA Hindustan Photo Films Manufacturing Co,
Ootacamund SHRI A. R. MURALI ( Alternate )
SHRI S. S. VOHRA Films Division ( Ministry of Information & Broad- casting ), Bombay
SHRI S. P. SACHDEV, Director General, IS1 ( Ex-ojicio Member ) Director ( Elec tech )
Secretary SHRI B. K. MAHATA
Joint Director ( Elec tech ), IS1
IS : 11577 - 1985
Indian Standard DIMENSIONS FOR
PROJECTION REELS FOR 8 mm TYPE S MOTION-PICTURE FILM FOR USE WITH
PROJECTION CASSETTES
0. FOREWORD
0.1 This Indian Standard was adopted by the Indian Standards Institution on 28 October 1985, after the draft finalized by the Cinemato- graphic Equipment Sectional Committee had been approved by the Electrotechnical Division Council.
0.2 This standard covers the dimensions for 8 mm Type S motion- picture projection reels designed for use in the projection cassettes.
0.3 In preparing this standard assistance has been derived from ISO/DIS 6027-1980 ‘Cinematography - Projection reels for 8 mm Type S motion-picture film for use with projection cassettes - Dimensions and specifications’, issued by the International Organization for Standardi- zation.
0.4 For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, expressing the result of a test, shall be rounded off in accordance with IS : 2-1960”. The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard.
1. SCOPE
1.1 This standard specifies the dimensions for 8 mm Type S motion- picture projection reels designed for use in the projection cassettes, which are used with compatibly designed 8 mm Type S motion-picture projectors.
1.2 This standard covers two models of reels of size number 15 of nominal capacity and size number 19 of 120 m nominal capacity.
*Rules for rounding off numerical values ( rruised ).
3
67 m
IS : 11577 - 1985
2. DIMENSIONS AND CHARACTERISTICS
2.1 The dimensions shall be as shown in Fig. 1 and 2 and given in Tables 1 and 2.
2.2 Dimension H applies from the surface of the hub to the periphery of the flanges.
23 The dimension K represents the diameter of the central portion of the reel centred on the spindle-hole axis, over which the effective central thickness 3 of the reel is intended to apply.
2.4 The maximum volume of rotation is measured~with a tight fitting test spindle which fits on the X diameter ( solid flange side ) by means of a shoulder 19’0 mm in diameter. The reference plane of rotation for both flanges is a plane perpendicular to detum cylinder A.
2.5 The concentricity of the spindle hole C and the hub E is determined as a run-out specification by dimension U. A similar allowance is provided for the concentricity of the spindle hole and the flanges in the maximum volume of rotation diagram ( Fig. ~2 ) by having dimension V exceed dimension M maximum by 0’80 mm.
2.6 Reels made according to this Standard shall also be provided with a means of securing the full-width end of the film to the reel. This may be accomplished by a slot in the reel hub and a minimum cut-out area.
2.7 The flanges of the reel should have three radial driving slots placed at approximately 120” and conforming to dimensions D and B. The drive slots of both flanges are aligned. If properly aligned, the reel will fit on a test spindle Y of 12.7 mm diameter with a radial spindle drive key having an axial length from the spindle shoulder greater than the width 3 of the reel; a thickness of 1’47 mm and a height, measured as a radius from the spindle axis, of 9.1 mm.
2.8 Some visible means of identifying the diameter of the wound film shall be provided on one or both flanges. If opaque materials are used for the flanges and a hole is necessary for such identification, the hole shall not be large enough to allow film to protrude through it.
4
lS:11577-1985
SECTtON Zt
DIMENSION
A, Max
B, Min
c
D, Min
H 7.42 +0’15 -0
R, Max 0.50 E=F 0.20 3=x For reference only
mm
2'95 lo.05 7.98
13.00
FIG. 1 REEL DIMENSIONS
IS : 11577 - 1985
FIG. 2 MAXIMUM VOLUME OF ROTATION
TABLE 1 STANDARD REEL SIZES
( Clauses 2.1 and 3.1 )
REEL SIZE NOMINAL NUYBER REEL
CAPACITY m
15
19
DIMENSION MASIMUM MINIMUM
(3)
6” Film diameter
Y Film diameter
mm
(4)
156.20 157.00 142.20
193.65 19440 179.60
mm
(5)
155.70
94-00
192.90
12T50
6
IS: 11577 -1985
TABLE 2 DIMENSIONS OF RBELS
( Clauses 2.1 and 3.1 )
DIMENSION
(1)
B C D E H
3 K PI P% PS p4 P6 P6 &
RS s u
MAXIXVM mm
69
1’80
13.00
20*90
63.50
9.40
11.45
21’60
0.40
1.40 -
11’30
9.40 -
Maximum is l/2 the value of B
do
64.25
0.80
MINIMUM mm
(3)
1’50
12.75
20.40
62.75
8.15
lb70 - - -
9.50 -
1.50
Maximum is l/2 the value of B
do
-
INTERNATIONAL SYSTEM OF UNITS ( $1 UNITS)
hse Units
QUANTITY
Length
Mass
Time
Electric current
Thermodynamic temperature
Luminous intensity
Amount of substance
Sapplementary Units
QUANTITY
Plane angle
Solid angle
Derived Units
QUANTITY
Force
Energy
Power
Flux
Flux density
Frequency
Electric conductance
Electromotive force
Pressure, stress
UNIT
metre
kilogram
second
ampere
kelvin
candela
mole
UNIT
radian
steradian
UNIT
newton
joule
watt
weber
tesla
hertz
volt
pascal
SYMBOL
m
kg s
A
Ii
cd
SYMBUL
rad
sr
SYMBOL
N
J w Wb
T
Hz
S
V
Fa
DEBISITIOK
1 N = 1 kg.m/s’
1 J = 1 N.m
1 W = 1 J/s
1 Wb = 1 V.s
I T = 1 Wb/ma
1 Hz = 1 c/s (s-s)
1 S = 1 A/V
1 V = 1WjA
1 Pa = 1 NV/m’