Improvements in and relating to slide valves formed of moulded artificial resin material, more especially for gas meters, and to seatings for such valves

摘要

Slide valves for gas meters are prepared from a composition comprising a heat hardenable synthetic resin and electrographite. The seating for the valve may be made of the same material. The Specification as open to inspection under Sect. 91 refers to the use of any graphite. This subject-matter does not appear in the Specification as accepted.