Cement And Engineering News

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1912 edition. Excerpt: ... builders, and by sounding the high seas of modern concrete construction, of lighting, of heating, of ventilation, of sanitary appliances, of elevator equipment, and safety devices, we believe we have pronounced the last word in up-to-date factory buildings. The width of sixty feet, made up in three bays, with shadow on the work benches and machine tools. In addition, inserts built into the bottom of the concrete beams as shown on the photograph of the interior, afford a simple and effective support for shaft hangers, piping, and wiring. By means of an ingenious device, designed by the Deering Works, consisting of slotted steel supports spanning the space between the longitudinal inserts, any adjustment or arrangement of shafting or supports that may be desired can be quickly and easily obtained; as John G. Wood graphically expressed it, "We can play checkers with the shafting on these ceilings." I. E. Merrion, superintendent of the Deering Works, is authority for the statement that saving enough can be effected in the placing of shafting and machinery in this building to pay for the cost of all provision made in the concrete work for supports. In addition to the advantages to be gained in time and cost by this ease of adjustment, there is the additional advantage of having no shafting timbers, beams, blocks, and supports to obstruct the light, and accumulate dust, both manifestly detrimental to the operation of machineshop work. There is a further decided advantage to be derived in the lack of vibration, causing an unquestionable reduction in the cost of repairs, both to line-shafting and machinery. This has been effectively proven wherever anything in the nature of a direct comparison could be made between concrete and...