Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 167,859 pages of information and 247,161 images on early companies, their products and the people who designed and built them.
Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.
4. M`KIRDY, J. G., Birkwood, Lesmahago, Scotland — Producer.
Model of a wooden bridge, for foot passengers, 46 feet span, besides 2 feet of bearing at each end. All the principal timbers incline to one centre, thereby forming, as it were, three arches. It may be erected (on piers, rocks, or piles) at little expense beyond the materials.
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