The combination of jute and Bentonite will swell when moist and make a tight joint. Melted lead is poured into the joint covering the oakum. As the lead cools it shrinks and becomes loose. To tighten the lead caulking irons are used to hammer the lead into the recessed end of the pipe joint. This makes a sturdy permanent seal. Web icon An illustration of a computer application window Wayback Machine Texts icon An illustration of an open book.
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Mark Drawing. Attorney Name. Statements Goods and Services. Classification Information International Class. Machines and machine tools; motors and engines except for land vehicles ; machine coupling and transmission components except for land vehicles ; agricultural implements other than hand-operated ; incubators for eggs. Hand tools and implements hand-operated ; cutlery; side arms; razors. Scientific, nautical, surveying, electric, photographic, cinematographic, optical, weighing, measuring, signalling, checking supervision , life-saving and teaching apparatus and instruments; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire-extinguishing apparatus.
Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes.
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