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This patent describes a gasket for an alkaline dry cell which is injection moulded in 6-12 nylon, and is designed to inhibit crack formation occurring when a collector is inserted through the central boss. The problem is overcome by using recycled polyhexamethylene dodecamide resin, which has previously undergone injection moulding, as part or the whole of the resin material for the section containing the boss on the gasket.
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Flex-o-Form S has a compressibility of 15%, but has excellent recovery capabilities. It is easily deformed and provides a good sealing effect even with a surface pressure of only 20 N/mm ~. On comparative trials against Quartz-PTFE pipeline flange seals within a chemical industry environment, Flex-
in vehicles and for hydraulic systems -was covered in some depth. Changing from ISO 46 oil to one of ISO 32 specification was estimated to save 15% in energy consumption, as a result of reduced flow losses. The viscosity index (VI) is also important, since a high VI will further reduce losses at low
A labyrinth seal arrangement that is designed to simplify assembly procedures is described by this patent. The labyrinth segments ( 12) can be moved radially. During assembly, a bar ( 18) is fed through holes in the seal housing and labyrinth segments in order to hold them clear of the shaft. When t
This patent describes a mold (1) for the production of plastic lenses that incorporates a tubular gasket (2) to surround the mold. The lens surfaces are formed by the top and bottom molds (3,4). An elastically deformable triangular projection band ( 5) is integrally formed on the inner peripheral su