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इंटरनेट मानक Disclosure to Promote the Right To Information Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public. “जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न’ 5 तरफ” Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru “The Right to Information, The Right to Live” “Step Out From the Old to the New” IS 13825 (1993): Household sewing machines - Arm shaft front bush [MED 29: Sewing Machines] “!ान $ एक न’ भारत का +नम-ण” Satyanarayan Gangaram Pitroda ““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee”” “!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै” Bhartṛhari—Nītiśatakam “Knowledge is such a treasure which cannot be stolen” HOUSEHOLDSEWINGMACHINES- ARM SHAFTF-RONT BUSH-SPECIFICATION UDC 687*053-233.21 Q SIB 3991 BUREAU OF INDIAN STANDARDS MANAK BHAVAN. 9 BAHADUR SHAH ZAFAR MARC NEW DELHI 110002 yluJ 3991 Price Group 2 Sewing Machines Sectional Committee, LM 13 FOREWORD This Indian Standard was adopted by the Bureau of Indian Standards after the draft finalized by Sewing Machines Sectional Committee had been approved by the Light Mechanical Engineering Division Council. This standard has been prepared to rationalize the types and sizes of sewing machine components for manufacturing in economic quantit,ies. For general requirements, IS 1610 : 1989 ‘Household sewing machines - General requirement’ can be reffered. A list of Indian Standards on sewing machines is given in Annex B. IS 138253 199.3 Indian Standard HOUSEHOLD SEWINGMACHINES- ARM SHAFT FRONTBUSH-SPECIFICATION 1 SCOPE 5 MATERIAL This standard lays down the requirements for The arm shaft front bush shall be made from arm shaft front bush for sewing machines for cast iron conforming to grade FG 150 of household purposes, IS 210 : 1978. 2 REFERENCES 6 DIMENSIONS The following Indian Standards are necessary adjuncts to this standard: Shall be as shown in Fig, 2. .%ASI Title 210 : 197% Grey iron castings ( third 7 TOLERANCES revision ) 7.1 Tolerances shall be as indicated in Fig. 2. 2102 General tolerances for dimen- ( Part 1 ) : 1980 sions and form and position : 7.2 The tolerances on untoleranced dimensions Part 1 General tolerances for shall be in accordance to medium class as per linear and angular dimensions IS 2102 ( Part 1 ) : 1980. ( second revision ) 2500 Sampling inspection tables : 8 WORKMANSHIP AND FINISH ( Part 1 ) : 1973 Part 1 Inspection by attributes and by count of defects (jirst The machining and other finish of the surfaces not revision ) indicated in the drawings shall be free from 4905 : 1968 Methods for random sampling burrs, cracks, flaws, holes, dents, fins, rust, scales, inferior surface treatment, unevenness and other manufacturing defects. 3 NOMENCLATURE Shall be as shown in Fig. 1. 9 SAMPLING 4 TYPES Unless otherwise agreed between the purchaser 4.1 The arm shaft front bush shall be of the types and the supplier the sampling plan as given in indicated below: Annex A shall be followed, Type A - see Fig. 2. For further information, reference may be made Type B - see Fig. 2. to IS 2500 ( Part 1 ) : 1973. CONTACS FACE FITTING DIAMETEF: OIL HOLE SARM / /-- AXIAL LINE */OFBORE - \ CONTACT FACE WITH ARM PIG. NOMENCLATUREFOR SHAFT FRONT 1 ARM BUSH 1 . IS 13825 : 1993 GGizi! // 0.1/100 ,) ETANRETLA =NOISNEMID ‘2;:;;y 14+0.05 2) ETANRETLA =NOISNEMID ; ;:;;“5/ 5 TYPE A 0 0.005 01 0.015 // O.l/lOO 14.2~:.I 1 09.2 m w- 2 LN6 028 L 031.?5-+0.13 4 L 1 TYPE B All dimensions in millimetres. FIG. 2 DIMENSIONS FOX ARM SHAFTFRONT BUSH 2 IS 13823: 1993 :lO MARKING Standards, 10.1 The arm shaft front bush shall permanently marked with the following: 11 PACKING a) Name or trade of the manufacturer, and Each arm shaft front bush shall be given a b) Type. suitable antirust coating and wrapped in poly- ethylene bags. The wrapped arm shaft front bush 2.01. Standard Mark shall be securely packed in accordance with the Details available with the Bureau of Indian best prevalent trade practices. ANNEX A ( esualC 9 ) SCALE OF SAMPLING AND CRITERIA FOR CONFORMITY A-l SCALE -OF SAMPLING examined for dimensions ( see 6 ), tolerances ( SIG~ 7 ), and workmanship and finish ( see 8 ), A-l.1 Lot If the number of arm shaft front bushes failing to meet one or more of the requirements mentioned In any consignment, all the arm shaft front above is less than or equal to the permissible bushes of same type and manufactured from the number of defectives given in co1 3 of Table 1, same material under essentially similar conditions the lot shall be declared as conforming to the of manufacture shall be grouped together to requirements of these characteristics. constitute a lot. A-1.2 For ascertaining the conformity of the lot Table 1 Scale of Sampling and to the requirements of the specification, tests shall Permissible Number of Defectives be carried out for each lot separately. The ( Clauses A-l -2, A- 1.4 and A-2.1 ) .number of arm shaft front bushes to be selected at random for this purpose shall be in accor- No. of Arm Shaft For Dimensions, Tolerances, dance with co1 1 and 2 ~of the Table 1. Front Bushes Workmanship and Finish ~------h~---~-~ A-l.3 If the arm shaft front bushes dare packed Sample Size Permissible individually, in order to ensure the randomness No. of of selection, IS 4905 : 1968 shall be used. Defectives* (1) (2) (3) A-l.4 If arm shaft front bushes are packed in different cartons, a suitable number cartons ( not up to 15 5 0 less than 20 percent of the total in the lot ) subject 16 to 40 8 0 to a minimum of 2 shall be chosen at random. From each of the cartons so ‘chosen, an approxi- 41 to 110 13 0 mately equal number of arm shaft front bushes 111 to 300 20 1 shall be picked up from its different locations so as to obtain the required number of arm shaft 301 to 500 32 1 front bushes specified in co1 2 of Table 1, 501 to 800 50 2 A.2 NUMBER OF TEST AND CRITERIA 801 to 1 300 80 3 FOR CONFORMITY 1 301 and above 125 5 A-2.1 The arm shaft front bushes selected accor- *This ensures that lots containing only 1’5% or less defectives shall be accepted most of the time. ding to A-1.2 and A-1.3 Dr A-1.4 shall be \ . ., . IS .I3825 : 1993 ANNEX B ( Foreword ) LIST OF INDIAN STANDARDS ON SEWING MACHINES SI .ovJ Title I§ .oN Title 12% : 1989 BoLbins for sewing machines for 5740 : 1970 Memorandum of screw threads for household purposes ( third revision ) sewing machine components 1295 : 1990 Household sewing machines - 6903 : 1973 Glossary of terms relating to sewing Needle bar - Specification machines for household purposes 1296.: 1989 Household sewing machines - 7491 : 1989 Sewing machines, household - Presser foot - Specification ( third Accuracy requirements ( jfiust ) revision ) revision 1297 : 1991 Household sewing machines - 7492 : 1989 Sewing machines, household - Presser bar - Specification Sewing requirements ( jrst 1610 : 1989 Household sewing machines - revision ) General requirements ( second 7493 : 1989 Sewing machines, household - revision ) Durability requirements ( jrst 2181 : 1973 Household sewing machine needles revision ) (jut 7evision ) 8892 : 1978 Bobbins for sewing machines with rotating hooks for industrial use 3290 : 1981 Thread take-up levers for cam type sewing machines for household 9152 : 1979 Glossary of terms and identification purposes ( second revision ) symbols relating to classiGcation of 3291 : 1968 Thread take up cams for sewing industrial sewing machines machines #for household purposes 9697-z 1980 Bobbin cases for sewing machines ( jr.!t revision ) with rotating ho&s for industrial 3299 : 1969 Oscillating-rock shafts for sewing use machines for household purposes 9874 : 1981 Arm and bed assembly for sewing ( jirst revision ) machines for household purposes 3375 : 1991 Household sewing machines -- 10040 : 1981 Rotating hooks for sewing machines Bobbin case - Specification for industrial use 3816 : 1966 Connecting rods for sewing 10304 : 1982 Feed rock shaft for sewing machines machines for household purposes for household purposes 3817 : 1991 Household sewing machines - Arm 10305 : 1982 Feed rock shaft crank for sewing shaft - Specification machine for household purposes 3868 : l966 Feed lifting rock shaft for sewing 10306 : 1982 Feed lifting rock shaft for sewing machines for hou sehold purposes machines for household purposes 4181 : 1967 Fee.d fork for sewin g machines for 11280 : 1985 Feed bar for sewing machines for househo!d purposes household purposes 4188 : 1967 Oscillating shafts for sewing 11345 :I985 Oscillating shaft crank for sewing machines for household purposes machines for household purposes 4338 : 991 Household sewing machines - 11347 : 1985 Shuttle driver for sewing machines Vertical oscillating shuttle - for household purposes Specification 12058 : 1987 Slide plates for sewing machines 4339 : 987 Needle bar link studs for sewing for household purposes machines for household purposes 12109 : 1987 General requirements for light duty 4340 : 967 Needle bar links for sewing sewing machine heads for industria1 machines for household purposes use 4341 : 1967 Feed holder roller for sewing 12740 : 1989 Household sewing machines - machines for household purposes Stand - Specification 4342 : 1967 Square slider for oscillating rock 12789 : 1989 Household sewing machines - shaft for sewing machines for Tables and base - household purposes 12798: 1989 Household sewing machines - FIY 4632 : 1968 Square slider for stitch regulator wheels - Specification shaft for sewing machines for 13120 : 1991 Household sewing machines - household purposes Flywheel bush - Specification 4735 : 1968 Arm shaft cams for sewing 13192 : 1991 Household sewing machines machines for household purposes Hand attachment assembly 4 w_. .___ .-__-... Standard Mark ehT esu fo eht dradnatS Mark is denrevog yb eht snoisivorp fo eht Bureau of Indian and eht seluR and snoitalugeR edam .rednuereht ehT dradnatS Mark no Standards Act, 1986 stcudorp derevoc yb an lndian dradnatS syevnoc eht ecnarussa that yeht evah neeb decudorp ot ylpmoc htiw eht stnemeriuqer fo that standard rednu a llew denifed metsys fo ,nojtcepsni gnitset and ytilauq lortnoc hcihw is desived and desivrepus yb SIB and detarepo yb eht -orp .recud dradnatS dekram stcudorp era osla ylsuounitnoc dekcehc yb SIB rof ytimrofnoc ot that standard as a rehtruf .draugefas sliateD fo snoitidnoc rednu hcihw a ecnecil rof eht esu fo eht dradnatS Mark yam eb detnarg ot srerutcafunam ro srecudorp yam eb deniatbo morf eht uaeruB fo naidnI Standards.