The weight of the cast-iron piston in this horizontal, wet vacuum pump caused excessive wear of the lower section of the pump cylinder. The problem was solved by replacing the cast-iron unit with a piston made from Whale brand TUFNOL, fitted with piston rings of the same material. Further modifications included replacing the original gland…
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The 42-ton rudder of the 45,000-ton P&O passenger liner Canberra is supported by Bear brand TUFNOL pintle bearings. This material is quite capable of accepting the great lateral stresses involved in this type of application. Bear brand TUFNOL is also used in the propeller shaft intermediate steady bearings of Canberra. This graceful vessel was built…
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The slender main support columns in Coventry Cathedral will excite comment for many years to come. Whale brand TUFNOL inserts form an integral part of these columns that visitors will never see. The steel tensioning ropes pass through the manganese bronze bases beneath the columns. The TUFNOL inserts prevent electrolytic action between the steel ropes…
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A hand trolley fitted with a full set of TUFNOL wheels produced from Crow brand Sheet. Hand trolleys used in the dairy product processing industry by Dried Milk Products Ltd. carry loads of 4-6 cwt over surfaces ranging from tile and concrete to cast iron lattice. Each truck has two side wheels and two smaller…
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TUFNOL components provide highly efficient electrical insulation on Ransburg electrostatic paint spraying equipment. Kite brand TUFNOL tube and Swan brand TUFNOL rod are used for the casing and the rotating shaft respectively. The makers of the equipment, Henry W. Peabody (Industrial) Ltd. found that other materials fractured, distorted, or permitted electrical tracking to occur. The…
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On this heavily loaded 1000-ton hydraulic plate-bending machine, Bear brand TUFNOL bearings and seal rings were fitted to the backing-up rollers. In spite of the arduous conditions, the bearings are standing up well after five years of continuous service. When operated under conditions of maximum load, the pressure on each TUFNOL bearing is in the…
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More than a million domestic cooker grill pans have been produced on this one Whale brand TUFNOL mould. Cams of the same material are used to control the operation of rolling the edges of the pans to provide a neat finish. TUFNOL is easily and speedily machined with quite simple tools. The moulds are easy…
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Asp brand TUFNOL dies are used on this plastics extrusion machine by V&N Hartley Ltd. The TUFNOL dies eliminate ‘pick-up’ and provide a thermal barrier which minimises heat loss from the hot P.V.C. in the extruder barrel to the cold water on the extrusion side of the die. Easily machined to accurate limits, these dies…
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A Crow brand TUFNOL dolly employed to protect piles from the repeated hammer blows of a pile driver. Each blow delivers a maximum explosion force of 70 tons, and the striking rate of the hammer shown on the left, under which this dolly served, is fifty blows per minute. Greenheart dollies previously used had had…
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Even after having more than 2,000 holes drilled in it, this TUFNOL patch board is strong enough to stand the one-ton total thrust of the spring contacts. Heron brand TUFNOL was specified for the job by the Woden Transformer Co. Ltd. because it is light, yet mechanically strong, and at the same time a first…
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