The life, times, and scientific labours of the second Marquis of Worcester : to which is added a reprint of his Century of inventions, 1663, with a commentary thereon (1865)
Dircks, Henry, 1806-1873 · London : B. Quaritch · leaf 459
with skrewes or to goe with both, as tothrust open huge and stiong gates, or else you takinggood hold, to pull them open vnto you wards, and will 426 THE CENTURY, make but little noyse in the doyng thereof, but youmust be sure to set the engine fast, if to tlirust from, tobe strongly and well… … frame, the two upright sides of which D E, are pro-vided with a series of clicks, appearing in the drawinglike the serrated edge of a saw, and each is so placedsecured by a pin on which it moves, as always to in-cline to fall outwards. F, F, is a long lever, having astout short cross bar in the…
Worcester, Edward Somerset, Marquis of, 1601-1667 · Inventions · Industrial arts -- History
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