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.

इंटरनेट मानक

“!ान $ एक न' भारत का +नम-ण”Satyanarayan Gangaram Pitroda

“Invent a New India Using Knowledge”

“प0रा1 को छोड न' 5 तरफ”Jawaharlal Nehru

“Step Out From the Old to the New”

“जान1 का अ+धकार, जी1 का अ+धकार”Mazdoor Kisan Shakti Sangathan

“The Right to Information, The Right to Live”

“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता है”Bhartṛhari—Nītiśatakam

“Knowledge is such a treasure which cannot be stolen”

“Invent a New India Using Knowledge”

है”ह”ह

IS 10007 (1981): Lifeboats' Steel Blocks [TED 19: MarineEngineering and Safety Aids]

IS : 10007 - 1981

SPECIFICATION FOR LIFEBOATS’ STEEL BLOCKS

Marine Instruments and Safety Aids Sectional Committee, MCPD 4

Chairman Representing

CAPT P. S. VANCIZI~WAW Directorate General or Shipping. Bombay

Members CAPT S. B. AGA Fricson dt Richards, Bombay CAPT N. N. BHANSAL~ The Company of Master Mariners of India,

Rombay SHRI A. K. CHOPKA lndian Reqlster of Shipping, Bombay DEPUTY L)IRECTOR m W~..WOXS Mmrstry 6f Defence ( NHQ 1 SHI<I P. R. GOVIL Cochin Shipyard Ltd, Cochin

SHHI P. J. C. SERLNO ( A/lernrrfe ) SHRI VIRENDRA SAIN ( Mer.nnfe I

CMDE HARUAY 4~ SINGIL Directorate of Standardization ( Ministry of Dcfence ) DGI ( N )

SH!~I J. L. BHAROAVA ( Altetnute ) CAPT I_ 13. HAXAI<I The Shipping Corporation of India Ltd. Bombay

CAPT G. C. RAO ( Altermre ) RRpar.sEN.rA’rIvE Indian National Shipowners’ Association, Rombay SIIKI R. ROY CI-IOWI>HLJKY Calcutta Port Trust, Calcutta SHRI I’. A. SFIAPARIA Shaparia Dock & Steel Co Pvt Ltd. Bombay

SHRI C. N. MIS-r~tu ( Alteinute ) SHKI K. SOUNI)HIKAKA.IAN Directorate General of Technical Development,

New IIelhi SHRI S. SRINTVASAN Hindusran Shlpyard Ltd, Vishakhapatnam

SHRI B. KIIISHYAPPA ( Alternate ) Gr CAPT 0. I’. TANLJA I-:. W. Stevens & Co Ltd. Madras SHRI P. S. DAS. Director General. ISI ( Ex-officio Member )

Director ( MCPD )

Secretary SI~ICI V. K. SEHOAL

Deputy Director ( Marrne )? ISI

( Continued on page 2 )

INDTAN STANDARDS INSTITUTION

This publication is protected under the Indion Copvrinht Act ( XIV of 1957 ) and

reproducfion 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 : 10007 - 1981

( Conrimed from pure 1 )

Lifeboats, Liferafts and Launching Gear Subcommittee, MCPD 4 : 2

Convener Representing

sHR1 D. B. IRAN1 Directorate General of Shipping, Bombay Afembers

SHRI P. K. BANIXJCE ( Alrcrnatc lo Shri D. B. Irani )

SHRI R. G. SIWH ( AIlernnla to Shri D. B. lrani )

SHRI S. Y. BANAVLIKAR. SHRI Y. S. MARATIIE ( Alternote )

Swastic Rubber Produ:ts Ltd. Bombay

CAPS N. N. BHANSAL~ The Company of Master Mariners of India. Bombay

DIRECI.OK OF NAVAL. CONSTRUCTION Ministry of Defcnce ( NHQ ) SHIU P. N. GH~SH Ministry of Defcnce ( R Sr I) )

SIIRI A. K. SUKI ( Alfernole ) SIJRI S. GOIJALAN Acre Marine Tndustrics Pvt Ltd. Madras

SHRI T. M. GWINDAN ( Alternnte ) CAP-r K. V. HORA Meridian Inflatables Pvt Ltd. Bombav

Cwr S. K. CIIATTERJ~E ( dlrerrrnre ) !%RI J. K. NANUA Geeta L:ngincering Works Pvt Ltd. Bombay

SI+IU S. K. BATRA ( A!fernnte ) SHM P. A. SIIAPARIA Shaparia Dock Sr Steel Co Pvt Ltd, Uombay

SHHI C. N. MISIKY (Al&male ) SW S. K. SINHA Garden Reach Shipbuilders &. Engineers Ltd,

Calcutta SIIRI A. K. JOARUAR ( Alfernate )

CAPI‘ V. SUIWAMANIAN Tbc Shipping Corporation of India Ltd, Bombay CAPT V. C. MINOCHA ( AIkwtafe )

CAPTH. II. WAUIA Institute of Marine Technologists, Bombay SI~KI V. G. DAMLI! ( Almna/e ) Stitu A. T. JOSEPH ( A~mxnl~ ) C,.wt 1’. S. I~AKv~: ( AIlrrnure )

2

IS : 10007 - 1981

Indian Standard SPECIFICATlON FOR

LIFEBOATS’ STEEL BLOCKS

0. FOREWORD

0.1 This Indian Standard was adopted by the Indian Standards Institution on 30 October 1981, after the draft finalized by the Marine Instruments and Safety Aids Sectional Committee had been approved by the Marine, Cargo Movement and Packaging Division Council.

0.2 Lifeboats’ steel blocks arc used with the luffing type boat davits.

0.3 Statutory authorities/classification societies have their own regulations for the construction and testing of lifeboats’ steel blocks used on board ships. These rules take into consideration the latest IL0 Code of practice of safety and health in dock work.

0.4 In the preparation of this standard, assistance has been derived from JIS F 3420-1977 Lifeboats’ steel blocks, issued by Japanese Industrial Standards Committee ( JISC ).

0.5 For the purpose ol’ deciding whcthcr a particular requirement of this standard is complied with, the final value, observed or calculated, express- ing the result of a tcjt or analysis, shall be rounded off in accordance with IS : 2-1960*. The number of significant places retained in the rounded 011 value should be the s3mc as that of the specified value in this standard.

1. SCOPE

1.1 This standard specifies the material, dimensions for the various types and pJrts for lifeboats’ steel blocks for use with the luffing type beat davits.

2. DESCRIPTION

2.1 Lifeboats’ steel blocks consist of the following parts:

a) Sheave b) Cheeks c) Supporting straps d) Axle pin

*Rules for rounding olr numerical VakS ( wciscd ).

3

IS : 10007 - 1981

e) Swivel f) Thimbles g) Distance piece between straps h) Beckets

3. TERMINOLOGY

3.0 For the purposr of this standard, the following definitions shall apply. 3.1 Cheeks -~-- Checks arc the side plates fitted on either side of the sheave. 3.2 Safe Working Load - The maximum permissible load in tonnes for the rope of one of the single sheave blocks to take on one end. 3.3 Nominal Size --The diameter of the sheave in millimetrcs is the nominal size of the block.

4. MATERIAL

4.1 The material used for the various parts of the block shall be as indicated below:

Name oj Pm-t Matrriul Cmfhming f0

a) Sheave

b) Hush for shcavc c) Cheeks

d) Supporting strap

e) Axle pin

f) Swivel g) Beckets

h) Thimbles

IS : 186.5-1974+ Grade 3 B

IS : 2107-1977.t IS : 210%1977: IS : 1570-1961~ Grade CZO rs : 1030-1974;~ IS : 315.196711 lS : 1570-19615 Open hearth steel, fully

killed 01‘ Ci 5 grade TS : I570-I9hI$ Open hearth steel, fully

kiilcd c f C 1 S grade IS : 1570-1961s Open hearth steel, fully

killed of C15 grade [S : 1570-19615 Grade C20 IS : 1570-19hIS Open hearth steel, fully

killed of Cl5 grade IS : 1570-1961~ Grade Cl5 Mn 75

*Iron castings with spheroidal or nodular graphite ( scamd revision ). tSpecification for whitcheart malleable iron casiings ( /irsr revi.sim ). $Specification for blackheart mnlleablc iron castings ( firs, tmisijm ). gkhedulcs for wrought ~tccl fur general cngincering purposes. IlCarbon steel castings for gcncral cnginxring purposes ( secord revision 1. 1jSpccification for lcadcd fin bronze ingots and castings ( revised ).

IS : 10007 - 1981

5. CLASSIFICATION

5.1 The blocks shall be classified as given in Table 1.

-- TABLE 1 CLASSIFlCATION OF BLOCKS

Tvre NOMINATE DIA~~ETER, mm r-. . .,.__ ._ -.----Am - - ___~

iAL 180 210 240 Ins 180 2io 240 IUL I HI 210 240 2AL 1 x0 210 240 ZAS IhO ‘IO 2-u 213s 180 210 240

NQli! I The digits 1 and 2 in the Type rcprescnt (he number of shcsvcs.

N~‘IF 2 .-- The second letter A in the Type rcprcscnts the blocks without bccket and B with bcckct.

Norr.~ ~I~lx third Icttcr L in the Type rcprcscnts the blocks with links and S with shackI<:;.

6. CONS’P‘RUCTION, SHAPE AND DIMENSIONS

6.1 The construction, shape and dimensions shall conform to Tal:lcs 2 to 8 and shall colrform to the following requirements:

Grease CLIPS conforming to IS : Xi72-196X’k may bc used in place of grcasc nipples conforming to IS : ~1009-1967~; Split pins conforming to IS : 549-19741;

Shackles used for types lBS, 2AS and 2BS conforming to IS : 6132- 1971s;

4 Thimble used for types lRS, LBL and 2BS conforming to IS : 2315- 197511; Cheeks may be provided with a rubbing p!ate to pro&t the rope; Cheek and fork may be secured by countersunk head bolt or rivet;

Swivel pqrt shall be so constructed as to be lubricated with oil or grease; and

h) Screw threads on swivel part shall conform to iS : 321%197611.

*Specification for grcasc cups. tSpecificafion for grease nippics. $Specific~ition for split pins ( sei,vzd revision ). $Specification for shackles. IlSpecification for thimbles for wire ropes ( first m~i.hn ). ~;Speclficntion for IS0 metric screw threads.

5

LS:10007-1981

7. TESTING

7.1 The blocks as a whole covered by this standard shall be individually tested in static condition to a proof load of 2.5 times the safe working load of the blocks as shown in Table 9. The proof loads and the safe working loads corresponding to the nominal size of the blocks are also indicated in Table 9. The test load shall be maintained for a period of 5 min.

7.2 At the end of the test, the blocks shall be checked for free rotation, then opened and all parts examined for permanent deformation or other defects in any of the parts. The blocks shall be approved subject to there being no permanent deformation on any of the parts.

8. DESIGNATION

8.1 The blocks shall be designated by their typ?, nominal diameter and this Indian Standard.

Example :

A lifeboats’, steel blcck of type IAL and nominal dia 180 mm shall be designated as:

Lifcboa:s* Steel Fl:)ck IAL, IS0 TS : 10307

9. MARKING

9.1 All lifcbcats’ stetl blocks shall bc. marked on the strap in an indelible manner with the following:

a) The manufacturer’s identification mark,

b) Nominal size,

c) Safe working load, and

d) The inspecting authority’s seal with date of test.

9.1.1 Lifeboats’ steel blocks may also be marked with the ISI CertiBca- tion Mark.

NATE - The use of the ISI (‘erlificalion Mark is governed by the orovisions of the Inhian Standards Institution ( Ccrlification Marks ) Act and th; Ruies and Regula- tions made thereunder. 7%~ ISI Mark on products covered by an Indian Standard conveys the assurance that they have been produced to comply with the requirements of rhat standard under a well-defined svstem of inspection, testing and quahty control which is devised and supervised by ISI and operated by the producer. ISI marked products are also continuously checked by IS1 lor conformity to that standard as a furtller safeguard. Details of conditions under which a i::cnce for the use of the ISI Certification Mark may be granted to manufacturers or processors, may bs obtained from the Jndian Standards Institution.

6

TAIlLE 2 DIMENSIONS FOR STEEL BLOCK, TYPE l/J,

C Clause 6.1 )

All dimensions in millimetres.

DISTANCE PIECE

L INNER EDGE 10 BE ‘\ SUITABLY ROUNDED \ \

-NUT FOR SWIVEL

7 WASHER

c_ -8, --A LH, STEEL PLATE FORK

180 29 64 50 44 33 M25 :2 h112 20 30 22 15A 170 40 26 130 95 20 35 206 9 4.5 12

210 33 72 55 50 35 M30x2 Ml2 24 36 26 15A 200 50 30 I50 110 20 40 236 10 4.5 14

240 37 84 6S 60 40 M36x3 Ml6 28 42 30 20A 230 60 35 170 125 25 45 27U 12 6 16

Rcmwk : The calculated mass includes that of shca~c

0.05

14.08

23-31

TABLE 3 DIMENSIONS FOH S’I‘KIIL BLOCKS, TYPE 1Us

( C/rrrrse 6.1 )

All dimensions in millimctres.

SECTION A .A

NOMINAL B BI D1AMETI.R

BOLT AND HEX NUT FOR OIST-,, ANCE PIECE 9

AXLE PIN AND

180 29 70

210 33 80

240 37 92 ~__--

NOMINAL R SIZE

T)ISTAN(

STEEL PLATE

NUT FOR SWIVEL

~- - OISTANCE PIECE

60 80 50

70 90 56

80 100 60

RI

20

20

25

‘EASE PPLE

HEX ANC FOR

B,

40

48

52

/-RIVET FOR 2

-

B, B, Bs cl NOMINAL SIZE 11~ da ds d,, H H, Hs H, H6 Ha r-.h_- 7

dl d3

24 26 52 32 M30x2 Ml2 M27 35 1% 25A lS5 50 30 120 75 85

26 30 58 35 M36x3 M12 M30 42 15A 32A 21.5 60 35 140 80 95

30 34 62 40 M40s3 Ml6 M33 46 20A 32A 245 70 40 160 85 105 ~______ ~_~___~ ~--

__--__

11 tz I.9 SHACKLE THIMBLI! A~~LICABL@ CAI,~~~AT~;D

Dr.4 OF MASS S’I EEL WIRE (kg)

RWP.

9 4’5 38 8 SR 26 B12 12 16.78

10 4.5 45 9 SR 32 I314 14 25.97

12 6 50 II SU 36 El6 16 38.38

Kewwk : The calculated mass includes those of sheave, shackle and thimble.

,

TABLE 4 DIMENSIONS FOR STEEL BLOCKS, TYPE 1BL

( Cluuse 6.1 )

All dimensions in millimetres.

PIECE

I Ii

3

AN0 PARTI-

SECTION AA

STEEL Pl ATE FORK

180 25A l5A 180 50 30 120 75 150 95 20 206 9 4.5 8 H1.J I? 14.48

210 32A 15A 210 60 35 140 80 180 1 IO 20 336 10 4.5 9 B14 14 ?7.1.%

240 32A 20A 240 70 40 160 85 210 125 25 270 12 6 11 BIG I6 33.58 - . __-.

Remnrks : The calculated mass includes those of sheave and thimble.

TABLE 5 DIMENSIONS FOR STEEL BLOCKS, TYPE 2AS

( Clnrr.ve 6.1 )

All dimensions in millimetres.

5lEEL PLATE

FORK

3’ 4 OLl AND HEX L dq

LOISlANCE

NUl FOR DIST- d3 PIECE

ANCE PIECE

:KLE

INNER EDGE IO BE SUITABLY

SECTION AA

NOMINAL B B, B, d NOMINAL SIZE DIAMETER

‘-d---?- 1 8

d. de H Hi Ha HA He R RI

180 29 95.5 6 45 M36x3 Ml2 40 15A 190 60 35 110 85 95 20

210 33 107.5 IS 50 M40x3 Ml2 46 ISA 210 70 40 125 95 110 20

240 37 124 85 58 M45x3 Ml6 52 20-4 235 SO 45 145 105 125 25

-__--__ NOMINAL DIA~V~ETEH

- R2 Ri t II fz SHACKLE CALCULATED APTLG$L"B

MASS STEEl. WlRB (kg)

ROPE

180 46 50 12 4’5 42 SB 30 12 22’71

210 52 55 14 4’5 50 SB 36 14 33.41

240 58 60 16 6 56 SB 40 16 50.76 __-

Remark : The calculated mass includes those of sheaves and shackle.

,

TABLE 6 DIMENSIONS FOR STEEL BLOCKS, TYPE 2RS

( Clnuse 6.1 )

All dimensions in millimetres.

BOLT AN0 Hk NUl FOR DIST ANCE PlECtn

DISTANCE PIECE

SECTION AA

FORK

STEEL PLATE FORK

! I 1. I- ,

U I- ‘u. LINK

TABLE 7 DIMENSIONS FOR STEEL BLOCKS, TYPE 2BS

( clnILrc 6.1 )

All dimensions in millimetres.

SECTION AA

BOLT AND HEX

CHECK PIECE

DISTANCE PIECE

STEEL FORK

HEX NUT FOR 8ECKET

SPLIT PIN

NOMINAL B B, Bz B8 Bs B, B1 BB d NOMINAL SIZE d, do NOMINAL dlo DIAMETER CA_ SIZE

4 ds ds

180 29 95.5 80 100 64 24 26 52 45 M39x3 Ml2 M21 44 M30 32A

210 33 107.5 90 115 72 26 30 58 50 M45x3 Ml2 M30 50 M36 40A 240 37 124 100 130 76 30 34 62 58 M50x3 Ml6 M33 56 M39 40A

NOMINAL dll 11 ffl ff3 Hp Hb -H, R R, Ra t tl ta t3 SHACKLE THIM- APPLICABLE CALCULATED DIAMETER BLE DIA OF MASS

STEEL WIRE (kg) Rope

180 tSA 195 65 38 125 85 85 95 20 50 12 4’5 47 8 SB34 B12 12 30.53 210 15A 220 15 45 145 90 95 110 20 55 14 4’5 53 9 SB38 814 14 44’63

240 20A 245 85 50 J 60 95 105 125 25 65 16 6 62 I1 SB44 B16 16 68.47

Rc~rmrk : The calculated mass includes those of sheaves, shackle and thimble.

JAL 150

IBS 2!0

1BL 240

2AS I SO

?A I. 210

2BS 240

T;U3L,E 8 DIMENSIONS FOR SHEAVES

( Clai6se 6.1 )

All dimensions in miilimetres.

l&O 14 6.5 24 23 7 S 6 3’5 45 63 105 20 Gi 210 16 7’5 28 32 8 9 7 35.5 48 65 !20 28 .*

tr

230 18 S’5 32 36 3 10 8 40’5 51 7’ 137 34 8

IS0 14 65 24 28 7 8 6 45.5 58 73 112 14 s

’ 210 16 75 23 32 S 9 7 58.5 63 SO 12s 20

240 18 X.5 32 36 9 10 8 55.5 72 90 146 25 E 00 c