P. R. Jackson and Co:1935 Review
Note: This is a sub-section of P. R. Jackson and Co
Visit of the Iron and Steel Institute to the Iron, Steel and Engineering Industries of Manchester and District
P. R. Jackson and Co. Ltd. are steel and iron founders specialising in the production of gearing. A modern and extensive gear cutting plant enables the firm to produce all the many types of gears and gear drives used for industrial purposes and they are particularly well equipped to handle the larger sizes, the capacity of the plant in this respect being 30 ft. diam. and ? tons in weight. They also do a considerable trade in machine moulded gearing, their experience in this type of gear dating back to 1846, and they were the first to introduce, in this country, the double helical tooth.
It is probably no exaggeration to say that the foundry produces a greater tonnage of cast gears and blanks than any other foundry in the country, and, coupled with the well equipped machine shops, constitutes a works unique in character. The foundry is not however, entirely devoted to the production of gear wheel castings. A considerable output is maintained to the manufacture of castings for rolling mills, hydraulic, and general engineering purposes. Particular attention is paid to the quality and heat treatment of castings to meet the exacting tests and specifications required by modern standards. A speciality is made of vanadium steel, the wear resisting properties of which make it particularly suitable for rolling mill pinions and heavy gearing.
The Company has an unrivalled experience in the installation of gear drives, either electrically or steam driven, for steel works and colliery plant. One illustration shows a double reduction gear drive for a 28" hot sheet mill. An example of modern practice in rolling mill design is shown in the other illustration. The principle feature of this rod mill is the use of roller bearings, which are arranged in pairs on each roll journal, with an extra roller bearing at one end of each roll to take up end-thrust. The bearings are enclosed in steel housings which are specially sealed. Arrangement is made whereby the rolls can be very quickly changed.
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