इ टरन ट म नक 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. ज न1 क अ+धक र, ज 1 क अ+धक र Mazdoor Kisan Shakti Sangathan The Right to Information, The Right to Live प0र 1 क छ ड न' 5 तरफ Jawaharlal Nehru Step Out From the Old to the New IS 3269 (1981): Specification for Stock Anchors [TED 17: Shipbuilding]! न $ एक न' भ रत क +नम-ण Satyanarayan Gangaram Pitroda Invent a New India Using Knowledge! न एक ऐस खज न > ज कभ च0र य नहB ज सकत ह ह Bhartṛhari Nītiśatakam Knowledge is such a treasure which cannot be stolen
1s : 3269-1981 Indian Standard SPECIFICATION FOR STOCK ANCHORS (First Revision ) Chairman SHRI S. PARMANANDHAN Members Shipbuilding Sectional Committee, MCPD 1 Representing Ministry of Defence ( NHQ) DIRECTOR OF NAVAL CONSTRUCTION (Alternate to Shri S. Parmanandhan ) SHRI S. K. BOSE Garden Reach Shipbuilders & Engineers Ltd, Calcutta SHRI A. R. CHOKSI The Indian National Shipowners Association, Bombay SHRI R. ROY CHOWDIIIURY Calcutta Port Trust, Calcutta SHRI V. G. DAMLE AFCO Ltd, Bombay; and Institute of Marine Technologists, Bombay SHRI A. KAPUR (Alternate ) AFCO Ltd, Bombay SHRI R. D. PARALKAR 1 ( Alternate ) I SHRI B. D. WADIA ( Alternate ) } Institute of Marine Technologists, Bombay SHRI A. T. JOSEPH ( Alternate ) [ CAPT P. S. BARVE ( Alternate ) J HONY SECRETARY The Institute of Marine Engineers ( Indian Division Council ). Bombay SHRI K. S. MANI ( Alternate) SHI~I A. T. JOSEPH ( Alternate ) SERI D. B. IRAN1 Directorate General of Shipping, Bombay SARI J. S. BHATTI ( Alternate ) SHRI MADAN L. KOCHHAR American Bureau of Shipping, Bombay SIZRI P. K. BANERJEE ( Alternate ) SHRI T. S. RAJAN Ericson & Richards, Bombay SHRI C.M. RAO Hindustan Shipyard Ltd, Vishakhapatnam SHRI S. SRINIVASAN ( Alternate ) SHRI H. S. RAO Indian Register of Shipping, Bombay SHRI S. RATRA Lloyd s Register of Shipping, Bombay SHRI D. MADHOK ( Alternate ) CDR N. RAVINDRANATHAN Ministry of Defence ( DGI ) LT A. S. OBEROI ( Alternate) @ Cobright 1981 INDIAN STANDARDS INSTITUTION ( Continued on Page 2 1 This publication is protected under the Zndiun Cq yight Act ( XIV of 1957) and reproduction in whole or in part by any means except with written permission of the publisher shall be deemed to be an infringement of copyright under the said Act.
IS : 3269-1981 ( Continuedfrom page 1 ) Members Representing S~RIK.SANEARANARAYANAN Directorate General of Technical Development, New Delhi SHRI H. K. SHARMA ( Alternate ) SERI B. R. SAWARKAR &chin Shipyard Ltd, Cochin SHRI P. R. GOVIL ( Alternate ) SHRI G.SINRA SF India Ltd, Calcutta SHRI H. SVENSSON ( Alternate ) CAPT V. SUBRAMANIAN The Shipping Corporation of India Ltd, Bombay SERI S. SUNDARAM ( Alternate) SHRIT.N.SUJAN Larsen & Toubro Ltd, Bombay SHRI A. B. THAKUR Ministry of Shipping & Transport SHRI S. N. SUMAN ( Ahernate ) SHRI P. S. DAS, Director General, IS1 (Ex-oficio Member) Director ( MCPD ) Secretary SHRI V. K. SEHQAL Deputy Director ( MCPD ), ISI
Indian Standard IS : 3269-1981 SPECIFICATION FOR STOCK ANCHORS ( First Revision ) 0. FOREWORD 0.1 This Indian Standard was adopted by the Indian Standards Jnstitution on 30 January 1981, after the draft finalized by the Shipbuilding Sectional Committee had been approved by the Marine, Cargo Movement and Packaging Division Council. 0.2 An anchor is designated by its nominal mass. The dimensions of the anchor and its component parts depend upon the nominal mass and the design features of the anchor. 0.3 This standard was first published in 1966. The need for the revision of this standard was felt regarding the range of nominal mass. 0.4 In the formulation of this standard due weightage has been given to international coordination among the standards and practices prevailing in different countries in addition to relating it to the practices in the field in this country. This has been met by basing the standard on the following publications: JIS F 3301 : 1975 Anchors, Japanese Industrial mittee PN W 83051 : 1961 Admiralty anchor. Polish mittee Standards Standards Com- Com- 0.5 This standard is one of a series of Indian Standards on anchors. Other standards in the series are: IS : 3267-1981 General requirements for anchors (first revision ) IS : 3268-1981 Specification for stockless anchors ( for ships use ) (first revision ) IS : 3270-1966 Specification for stock and single fluke stock anchors ( for harbour use ) 0.6 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 3
IS t 3269 = 1981 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 nominal mass (ranging from 25 to 2 160 kg ), dimensions and materials for the various components of stock anchors. 2. TERMINOLOGY 2.1 For the purpose of this standard the definitions given in IS : 3267-1981? shall apply. 3. DIMENSIONS AND MASS 3.1 Mass and dimensions for stock anchor and its components shall be as given in Tables 1 and 2. All the dimensions are based on the basic dimension A = S = 24.45 3vg, where G is the nominal mass of stock anchor in kilograms. 3.1.1 The mass and dimensions for stock anchors and anchor shackles shall be as given in Table 1 read with Fig. 1. 3.1.2 The mass and dimensions for stock together with its locking arrangement shall be as given in Table 2 read with Fig. 2. 3.2 The dimensions of various parts of stock anchor shall not vary by more than 4, percent from the specified values. The variation of any dimension from the specified value shall not exceed 20 mm. 3.3 Machining tolerances shall conform to coarse series of IS : 22-1969$. 3.4 The mass of different components shall not vary by more than 5 percent from the specified value of the mass of these components, provided the total mass of anchor is not less than the nominal mass given in Tables 1 and 2. 4. MATERIAL FOR CONSTRUCTION 4.1 The material for the construction of stock anchor and its various components shall be as specified in IS : 3267-1981t. *Rules for rounding off numerical values ( revised ). TGeneral requirements for anchors (Jirst revision ). SAllowable deviation for dimensions without specified tolerances (jrst revision). 4
~ANCHOR SHACKLE 6 AI) ENLARGED AT X VIEW ANCHOR SHACKLE Frc.1 DIMENSIONS FOR STOCICANCHORSANDANCHOR SHACKLES
IS I 3269-1981 B..- OETAIL AT X, P-sl8-l 17 FIG. 2 WASHER. COT TEi DIMENSIONS FOR STOCK WITH LOCKING ARRANGEMENT 4.2 The material for washer and cotter shall be of forged steel Grade 2 conforming to IS : 3261-1966* :or cast steel conforming to IS : 2985-1973t. 4.3 The chain and split pin shall be of mild steel and of suitable size in proportion to that of washer and cotter. 5.. TESTS 5.1 Stock anchors shall be tested according to the tests prescribed in IS : 3267-1981:. 6. DESIGNATION 6.1 The stock anchor shall be designated by its name, the nominal mass and number of this standard. Example: A stock anchor having a nominal mass of 1 500 kg shall be designated as: Stock Anchor x 1 500 kg IS: 326g : *Specification for carbon steel forgings for shipbuilding industry. TSpecification for steel castings for ship s structure ( jrst revision ). #General requirements for anchors (jirst revision ), 6
IS : 3269-1981 7. MARKING 7.1 The stock anchors shall be marked as specified in IS : 3267-1981*. 7.1.1 The stock anchors may also be marked with the IS1 Certification Mark. NOTE - The use of the IS1 Certification Mark is governed by the provisions of the Indian Standards Institution ( Certification Marks) Act and the Rules and Regulations made thereunder. The IS1 Mark on products covered by an Indian Standard conveys the assurance that they have been produced to comply with the requirements of that standard under a well-defined system of inspection, testing and quality control which is devised and supervised by IS1 and operated by the producer. IS1 marked products are also continuously checked by IS1 for conformity to that standard as a further safeguard. Details of conditions under which a licence for the use of the IS1 Certification Mark may be granted to manufacturers or processors, may be obtained from the Indian Standards Institution. *General requirements for anchors (first reoisic?n ). 7
As in the Original Standard, this Page is Intentionally Left Blank
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IS I 3269-1981 TABLE 2 MASS AND DIMENSIONS FOR STOCK WITH LOCKING ARRANGEMENT ( Clauscr 3.1, 3.1.2, 3.4, and Fig. 2 ) All dimensions in millimetres. 25 40 65 lyo5 6 72 :a4 :62 1 29 119 353 412 412 481 480 562 539 630 583 682 58 67 ;t 95 35 41 48 54 58 :: 38 43 46 32 38 z 54 16 :; 22: 44 51 : 72 48 56 66 74 80 15 ;i 25 140 150 180 205 215 127 3385 130 45 138 144 :: 146 627 728 2 637 745 4 676 791 1 706 825 115 715 836 117 89 :: 1 2 z;: 62 65 66 70 72 76 79 80 112 1 I4 121 127 128 43 44 47 49 50 11 12 12 245 265 290 305 330 61 152!2 162 157 z 169 165 745 871 122 769 900 126 794 928 130 809 945 132 828 968 135 74 77 79 z 6 1 113 116 118 2 5 8 1 113 134 138 143 145 149 12 t: t: 355 395 445 485 525 89 173 179 111 187 121 192 131 197 848 991 138 a77 1 026 143 916 1 072 150 941 1 0 154 965 1 129 158 67 70 i3 :: 121 125 131 134 138 6 9 114 117 120 95 1:: 6 8 116 120 125 129 132 11 1 : 12 152 158 164 169 173 36 :: 40 41 14 14 15 :: 575 6 660 715 765 144 203 152 207 165 213 179 219 191 224 995 1 163 162 0 14 1 186 166 1 1 044 1 220 170 4 1 073 1 225 175 7 1 098 1 283 179 1 79 :: 85 87 142 145 149 153 157 124 112 126 114 130 117 134 120 137 123 136 139 143 147 150 1: 13 13 13 179 182 187 193 197 43 43 45 :; 69 16 70 16 5: f: 76 18 830 a90 965 1 045 1 120 208 230 222 235 241 242 261 248 280 254 127 1318 184 113 1 152 1 347 188 115 1 186 1 387 194 119 1215 1 421 198 122 1 245 1 455 203 124 161 4 164 6 169 9 174 112 178 114 53 zs4 57 58 140 126 143 129 148 133 151 136 155 140 9 9 154 157 162 166 170 t4 t3 15 202 207 213 218 224 78 80 88: 86 18 ;z 20 20 1 195 1 270 1 350 1425 1 500 299 259 318 265 338 270 356 275 375 280 1 269 1 484 207 127 1 1 298 1518 212 130 3 1 323 1 547 216 132 5 1 348 1 576 220 135 7 1 372 1 604 224 137 9 181 116 186 119 189 122 192 124 196 126 158 142 162 146 165 148 168 151 171 154 11 11 I ; 174 178 181 184 188 228 233 238 242 246 54 56 287 59 2211 2222 22 1 575 1 655 1 7-1 030 1 935 394 284 414 289 435 294 458 299 484 305 1 392 1 627 227 139 111 1 416 1 656 231 142 117 1 441 1 585 235 144 I15 I 465 1713 239 146 117 1 494 1 748 244 149 119 199 1?8 202 130 206 132 209 134 214 137 173 156 176 159 179 162 182 164 186 168 ;: 12 12 12 190 194 137 200 204 17 17 17 ;88 250 254 259 263 268 2: :: (j2 IO0 63 2 64 4 23 23 ::: 24 1 985 2 070 2 160 496 307 518 311 540 316 1 504 1 759 1 524 1 782 1 548 1811 $2 253 150 120 152 121 155 123 215 218 221 138 ;z 187 169 190 171 193 174 t: 13 206 208 212 198 19 270 64 4 274 65 6 278 66 7 24 ;; NOTE - For other nominal weighfr, with the given proportions, required dimensions may he calculated.