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 6053-3 (1971): Handtools for footwear industry, Part 3: Designers' knife [CHD 19: Footwear]! 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
Indian Standard IS : 6053 ( Part III ) - 1971 SPECIFICATION FOR HAND TOOLS FOR FOOTWEAR INDUSTRY Chairman SHRI J. GHOSH Members PART III DESIGNERS KNIFE Footwear Sectional Committee, CDC 40 Representing The State Trading Corporation of India Ltd, New Delhi SHRI A. K. SEN ( Alternate to Shri J. Ghosh ) SHRI M. ANWAR Trot Shoe Co Pvt Ltd, Calcutta SHRI B. N. BAK~HI ( Alternate ) SHRI M. B. BARALE Bombay Footwear Pvt Ltd, Bombay SHRI T. G. B~BADE Ministry of Defence ( R & D ) SHRI A. BOSE Bengal Waterproof Works ( 1940 ) Ltd, Calcutta SHRI R. S. ROY ( Alternate ) SHRI V. CANTHASWAMY J & P Coats ( India) Pvt Ltd, Bombay SHRI D. R. ENGINEER ( Alternate) SHRI R. G. DEO Ministry of Labour & Rehabilitation, New Delhi SHRI A. C. SRIVASTAVA ( Alternate) SHRI D. M. DHAR Hindustan Steel Ltd, Ranchi SHRI B. N. SRIVASTAVA ( Alternate ) SHRI S. P. DHIR SHRI W. G. EDGER The Agra Shoe Manufacturers Association, Agra Ministry of Defence ( DGI) SHRI M. HVQ ( Alternate) SHRI H. R. GADI Directorate of Industries ( Quality Marking Scheme ) ( Government of Uttar Pradesh ), Kanpur SHRI S. S. SAXZNA ( Alternate) SHRI GOPAL GHOSH Bata Shoe Co Pvt Ltd, Calcutta SHRI B. R. GUPTA ( Alternate ) SHRI S. N. GHOSH Jaya Shree Textiles & Industries Ltd, Rishra SHRI I. P. MODI (Altmate ) SHRI R. M. HARDIKAR Swastik Rubber Products Ltd, Poona SHRI M. P. JOSHI Directorate of Industries (Quality Marking Scheme ) ( Government of Maharashtra ), Bombay SHRI N. R. LODH The Development Commissioner, Small Scale Industries, New Delhi SHRI S. K. MICRA Cent$idr.ather Research Institute ( CSIR ), SHRI K. T. SA~KAR ( Al&mute ) SHRI G. ROY CHOUDHURY Export Promotion Council for Finished Leather & Leather Manufacturers, Kanpur SHRI L. C. ARYA (Aknate ) i ( Conthud m #aen 2 ) INDIAN STANDARDS INSTITUTION MANAK BHAVAN, 9 BAHADUR SHAH ZAFJAR MARG NEW DELHI 1
IS : 6053 ( Part III ) - 1971 ( Confinvodfrom page 1 ) Members SHRI K. C. SAX-IA Central Footwear Training Centre, Madras SHRI P. R. SANKARA &JBRNUAN~A~.J Department of Industries and Commerce! Quality ga;$g Scheme) ( Government of Tam11 Nadu), SHR~ ANUPAM SEN SHRI P. K. ROY (&emate) SHRI B.P. SZNCJ~PTA SHRI G. M. GADRB ( Alfcrnafo ) SHRl N. R. SmDAR SHRI R. N. RrswAa ( Ahernate) SHRI R. THANJAN SHRI R. S. Gr-roarr ( Aknate ) SHRI B. K. VARMA * SHRI D. DAS GUPTA, Director ( Chem ) The National Tannery Rofnw8nfing Co Ltd, Calcutta Directorate General of Supplies 8s Diaposala, New Delhi Commerce & Industries Department (Quality Marki;gl~;t~:me ) ( Government of West Bengal ), a Directorate General of Technical Development, New Delhi Commissioner of Civil Supplies (Ministry of Foreign Trade ), New Delhi Director General, IS1 (Ex-oficio Member ) Score fary SHRI SAWR D*s GUPTA Assistant Director ( Chem ), IS1 Shoe. Makers Hand Tools and Equipment Subcommittee, CDC 40 : 7 Corvanar SHRI N. R. LODH Mini_TaYdeof Industrial Development & Internal Mcmbors SHRI SITAL Drs Bata Shoe Co Pvt Ltd, Calcutta S-1 GIJRSARAN DUM The Agra Shoe Manufacturers Association, Ago SHRI K. B. POTN~~ ATLANTA, Bombay SHRI K. C. SAHA Central Footwear Training Centre, Madras SHRX N. P. SHARMA Ideal Engineers, Agra 2
Indian Standard IS : 6053 ( Part III ) - 1971 SPECIFICATION FOR HAND TOOLS FOR FOOTWEAR INDUSTRY PART III DESIGNERS KNIFE 0. FOREWORD 0.1 This Indian Standard ( Part III ) was adopted by the Indian Standards Institution on 27 November 1,971, after the draft finalized by the Footwear Sectional Committee had been approved by the Chemical Division Council. 0.2 In footwear industry, designers knife is used by designer for cutting and marking pattern papers while designing. The knife recommen ded in this standard, on account of its improved design and lightness coupled with gripping feature, provides extra facilities to a designer to hold it at ease like a pencil for his work. 0.3 The handle of the Type 1 knife shall be built up of a bent wire with a slot at the end, in which the steel blade may be inserted when the knife handle is in open position and when the tail ends are clamped, the spring action of the wire bolts the blade in position. The tail end is pointed to facilitate its use in prick marking. The finger-catch also provides a rough lined surface to enable fingers to check the knife from slipping. The Type 2 knife shall be such that the blades may be inserted into the handle from the front side and screwed securely: The blade is sharpened before use to a bevel shape in order to have a sharp cutting edge. 0.4 This standard contains clause 6.1 which calls for agreement betweeen the purchaser and the supplier. 0.5 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 or analysis, 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 ( Part III ) prescribes the requirements, methods of sampling and test for designers knife, used in footwear industry. *Rules for rounding off numerical values ( revised ). 3
IS : 6053 ( Part III ) - 1971 2. TERMINOLOGY 2.l Designers Knife -A knife having its blade inserted through the handle. The other end of the knife is provided with pointed edge to facilitate prick marking. 3. TYPES 3.1 Depending upon the design, the knives shall be of following two types: Type 1 - Knife with wire handle Type 2- Knife with metallic handle 4. REQUIREMENTS 4.1 Material 4.1.1 Blade -The blade shall be made from either high carbon steel, low alloy steel or high speed steel, 1 *O mm thick and having rust preventive coating. 4.1.2 Handle - The handle of Type 1 knife shall be made from mild steel wire ( conforming to IS : 1673-1960 ) with cadmium plating. The handle oftype 2 knife shall be made from brass tube 13 mm in diameter. 4.2 Shape and Design - The shape and dimensions of Type 1 and Type 2 designers knives shall be as given in Fig. 1. 4.3 Hardness - The hardness of the finished steel blade, measured as near to the cutting edge as possible according to IS : 1501-1968?, shall be as given below: a) High carbon steel 693 to 762 HV b) Low alloy steel 762 to 840 HV C) High speed steel 738 to 840 HV 4.4 General Requirements and Finish 4.4.1 The handle shall be finished smooth and the shape uniformly maintained. be 4.4.2 The clamping devise in the handle shall be such that the blade may clamped securely. *Specification for mild steel wire for the manufacture of machine screws ( by cold-head@ process ). tmethod for Vickers hardness test for steel (Jirsf rertision ). 4
IS : 6053 ( Part III ) - 1971 4.5 Performance Requirements - The knife when suitably sharpened and subjected to a practical cutting test on pattern paper shall give a clean edge. The cutting edge shall fully retain its keenness and shall show no sign of distortion or any other defects on completion of the test. WIRE HANDLE 7 \!%!%%EMENT \ 25 DETAIL OF A A,, IBLADE /CLAMP \ TYPE 1 DETAlL-iF LOCKING ARRANGEMENT 1) _-_-- Ll3rp PRICK PIN- k30-4 15 ~-12o--------------cl 15 I-- \SCREWED L_-----130------I L-1o TYPE 2 All dimensions in millimetres. FIG. 1 DESIGNERS KNIFE 5
IS : 6053 ( Part III ) - 1971 5. MARKING 5.1 Each blade and handle of the knife or the package or both shall be marked legibly with the following particulars: a) Name of the manufacturer or trade-mark, if any; b) Type; and c) Date and year of manufacture. 5.1.l Each blade and handle of the knife or the package or both 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. Presence of this 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 during production. This system, which is devised and supervised by IS1 and operated by the producer, has the further safeguard that the products as actually marketed are continuously checked by IS1 for conformity to the standard. Details of conditions, under which a licence for the use of the IS1 Certification Mark may he granted to manufacturers or processors may be obtained from the Indian Standards Institution. 6. PACKING 6.1 The blade The knife shall supplier. shall be suitably greased and separately packed in paper. then be packed as agreed to between the purchaser and the 7. SCALE OF SAMPLING AND CRITERIA FOR CONFORMITY 7.1 The scale of sampling and criteria for conformity shall be as prescribed in Appendix A. 8. TEST METHODS 8.1 The material shall be examined visually for all general requirements prescribed in 4.4. 8.2 The material used for handle and blade, shall be tested for the requirements given in 4.1 and 4.3 according to the relevant Indian Standard noted against them. Dimensions as given in Fig. 1 shall be checked by suitable callipers. 8.3 performance shall be tested as prescribed in 4.5.1. 8.4 Test for Rustproofness - Clean or degrease the handle and blade, selected for this purpose with benzene ( see IS : 1840-I 961* ). Dip them in *Specification for benzene, reagent grade. 6
IS : 6053 ( Part III ) - 1971 a solution of copper sulphate ( CuSO,. 5HsO; relative density l-17 at 27 C ) for a duration of one minute and then take them out. Wash, wipe and dry with a clean soft cloth. Repeat the process of immersion and drying four times and examine visually. 8.4.1 The handle and the blade shall be taken as having passed the test if they do not show any sign of red deposition of copper before or after the fourth dip. APPENDIX ( Clause 7.1 ) A SCALE OF SAMPLING AND CRITERIA FOR CONFORMITY A-l. SCALE OF SAMPLING A-I.1 Lot - In a consignment all the knives of the same shape and dimensions shall be grouped together to constitute a lot. A-1.2 Each lot shall be tested separately for determining its conformity to the requirements of this specification. A-I.3 The number of knives to be selected in the sample depends on the size of the lot and shall be in accordance with co1 1 and 2 of Table 1. TABLE 1 SCALE OF SAMPLING AND PERMISSIBLE NUMBER OF DEFECTIVES LOT SIZE SAMPLESIZE PERMISSIBLE No. OF DEFECTIVES.N n (1) (2) (3) Up to 25 5 0 26,, 50 8 0 51,, 100 13 1 101 ), 200 20 1 201,, 400 32 2 401 and above 50 3 A-I.4 These sample knives shall be selected at random from the lot. For random selection procedures, IS : 4905-1968* may be referred. *Methods of random sampling. 7
IS : 6053 ( Part III ) - 1971 A-2. CRITERIA FOR CONFORMITY A-2.1 All the selected knives shall be examined for material, construction, dimensions and finish and shall also be tested for performance requirements given in 4.5. A knife failing in any one of the above requirements shall be taken as a defective. The number of defectives shall not exceed the permissible number given in co1 3 of Table 1 if the lot is to be accepted as satisfactory. A-2.2 Two knives if the lot size is 100 and below, and four knives if the lot size is above 100 shall be tested for hardness of steel blade. There shall be no failure if the lot is to be accepted under this clause. For rustproofness of blade and ferrule, two knives selected at random from the sample shall be tested and if both of them pass the test, the lot shall be considered satisfactory in this regard. 8