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    • 8. 发明专利
    • Improvements in or relating to electric soldering irons and the like
    • GB195264A
    • 1923-03-29
    • GB818722
    • 1922-03-21
    • LEONARD OSWALD MEYERCLEMENT SYDNEY BEST
    • B23K3/03
    • 195,264. Meyer, L. O., and Best, C. S. March 21, 1922. Branding by heat.-In an electric soldering-iron or branding-iron, the bit has an integral stem which is secured bv its inner end to the handle and passes through a heating-element, consisting of a porcelain tube carrying the heating-wires. which is mounted in a casing secured to the handle so that it can be removed and replaced by a fresh element in the manner of a cartridge, for renewal purposes or for use on a different voltage. In the soldering-iron shown in Fig. 1, the bit a has an integral stem b, which is inserted into a flanged porcelain or like heat-resisting sleeve c, on which the heating-coil d is wound. The stem is screwed into the end of a U-shaped lug e , which projects from a part e screwed to the handle stem h, and fits into a recess in the flange c of the sleeve c. The flange is also provided with grooves c' for the passage of the leading-in wires g, which pass through the handle stem and are secured, together with wires from the mains, to terminals k, the wires being covered with beads. The heating-coils carried on the sleeve c are provided with mica or like electrical insulation and covered with asbestos, and the whole is mounted in a casing f secured to the part c so that it can be removed in the manner of a cartridge. The iron, when in use, may be secured in a clamp m, Fig. 8, pivoted at n to the vertically-adjustable supporting rod l of a stand, the work being brought into contact with the iron.