Improvements in or relating to flexible tubing
Abstract
Abstract 395,239. Rubber &c. hose. I O C O RUBBER & WATERPROOFING CO., Ltd., Netherton Works, Anniesland, KIRKWOOD, J., 68, Kelvin Drive, both in Glasgow, STONES, E. E., 18, Glenville Avenue, and CROSSLEY, J. L., 61, Athol Drive, both in Giffnock, Renfrewshire. Nov. 25, 1932, No. 33448. [Class 99 (ii).] The interior surface of a hose, gas tubing, &c., of rubber, rubberized fabric, &c., is provided with one or more, preferably four, longitudinal or helical grooves 9, corrugations 10, or slits 12, so as to permit the passage of fluid through the hose should it be kinked, flattened, or otherwise deformed. The grooves may be of rectangular, V or semi-circular form and are preferably diametrically arranged, and the hose may be reinforced by ribs 11 disposed on the exterior surface thereof opposite the said grooves.
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