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Thomas Gunstone Hill
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10,133. Hill, T. G. May 11. [Patent of Addition to No. 3767, A.D. 1907.] Girders and beams. -A beam or girder of the type described in Specification No. 3767, A.D. 1907, is formed of two U - shaped plates thicker at the bends, which may be semicircular as shown in Fig. 1, or straight as in Fig. 3 ; the sides taper to the edges, which are lapped and welded or riveted together. The sides are stiffened by bolts 4 in sleeves 5. [Reference has been directed under Section 7 of Patents &c. Act, 1907, to Specification No. 3767, A.D. 1907.]