E - Fixed Constructions – 01 – D
Patent
E - Fixed Constructions
01
D
14/5
E01D 21/00 (2006.01) E01D 15/127 (2006.01)
Patent
CA 1300823
Williams 1 us/c BRIDGING APPARATUS AND METHOD ABSTRACT OF THE DISCLOSURE A bridge apparatus has a relatively light lower beam portion and a relatively heavy upper beam portion. The beam portions are generally equal in length. The lower beam portion is initially placed across the point to De bridged and has sufficient strength to support itself and to support the upper beam portion as the upper beam portion is moved across the lower beam portion. The upper beam portion is placed on top of the lower beam portion and fasteners are used for drawing together the two beam portions to close any gap therebetween and to rigidly connect the beam portions together so the beam portions jointly contribute to bearing the load.
550394
Bull Housser & Tupper Llp
Williams A. Arthur
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