Author:Shiloh, MDate:Oct 1973Plain and twill weave light weight suiting fabrics were woven from each of three types of yarns; all-wool, 80/20 wool/nylon staple blends and 80/20 wool/nylon filament cores.Read more
Author:Smuts, S; Hunter, LDate:Mar 1974The tensile properties (extension at break and tenacity) of mohair and kemp fibres been compared at different gauge lengths, for various Cape and Basutu mohair types.Read more
Author:Hunter, L; Smuts, SDate:Apr 1974The variation in surface irregularity, measured by means of a status lightly resting on and transverse along the fabric surface as well as the variation in transmitted light measures by means of a photodensitometer, of single jersey fabrics ...Read more
Author:Kelly, IWDate:May 1975Applying amounts of resin greater than 5 per cent (on mass of cotton) to cotton/polyester blend fabrics and dry curing the fabrics to not improve the easy-care properties of the fabrics to any extent.Read more
Author:Van Rensburg, NJJDate:Dec 1972The use of titanium tetrachloride and antimony oxide as flame-retarding agents for cotton was investigated.Read more
Author:Kelly, IWDate:May 1974The physical properties of a series of plain weave fabrics from cotton blended with polyester were measured and compared.Read more
Author:Robinson, GA; Turpie, DWFDate:Oct 1978The performance and physical properties of fibre, yarn and fabric produced from a 64's quality imported merino wool, a Cape merino 64's wool and a 50/50 blend of these has been investigated.Read more
Author:Horn, REDate:Oct 1976A method is described by which cotton fabric is treated with phenolicformaldehyde resins and then dyed by immersion in solutions of stabilized salts which couple to the resins.Read more
Author:Bird, CEDate:1951The swing hammer pulveriszer available at the Institute is a comparatively small machine but it was considered that the information regarding its operating characteristics gained investigating the hammer mills used in practice.Read more
Author:Van der Merwe, JMDate:1954A segregation and breakage test was carried out on pea-duff coal and the results are summarized in the present report.Read more
Author:Van der Walt, PJDate:1952A Jeffery single roll crusher was installed at Van Dyksdrift colliery with the object of producing coal suitable for firing in South African Railways locomotives.Read more
Author:Van der Walt, PJDate:1952A detailed study was made of the various tine coal cleaning processes and it was finally concluded that the cyclone washer was the only known process which showed promise of solving the formidable washing problem.Read more
Author:Van der Walt, PJDate:1952The run-of-mine coal is to be broken in such a manner that 55% of it has a top size 1 half inches and that the ratio between top and bottom size does not exceed 5 to 1.Read more
Author:Berry, HDate:1949This colliery is situated on the farm Vlaklaagte 35, close to the northern boundary of the Bethal Magisterial District and approximately midway between the towns of' Witbank and Bethal.Read more
Author:Gaigher, BDate:1944During 1942 a series of 14 boreholes was put down by the South African Iron and Steel Industrial Corporation on the farms Welstand 34, Rietkuil 27, Diepspruit 25 and Roodepoort 24, in the Bethal District of TransvaalRead more
Author:Van Duuren, BLDate:1951A graphical statistical method of representation of reaction mechanisms and products, developed by Van Krevelen has been used in the interpretation of the reactions of the nitrochumic acids from coal oxidation.Read more
Author:Van Eck, B; Savage, WHDDate:1951In the present investigation samples of approximately cobble sized coal from five typical collieries in the major coal fields were taken.Read more
Author:Sevenster, PGDate:1951The primary objective of the present investigation was to ascertain the oxygen absorption characteristics of South African coals using a technique based on that developed by Winmill.Read more
Author:Van der Walt, PJDate:1951This report describes how the principal objectives were to gather data relating to the practical operation and application of the various coal cleaning processes and methods of screening, breaking and handling coal.Read more
Author:La Grange, CCDate:1951This paper investigates the storage of coal with regards to specifically coal deterioration and combustion properties.Read more