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Knight's Mechanical Encyclopedia (ed. Knight), G. (search)
d by James Cooke, a elergyman, of Lancashire, England; his improvements have been adopted in almost all of the subsequent machines used in English husbandry. Mr. Ransome states:— The seed-box is of a peculiar shape, the hinder part extending lower than the forepart. It is di- vided by partitions, and supported by adjustable The following recipe may also be employed: — Sand of the required fineness, 3 or 4 parts; shellac, 1 part; melted, incorporated, and molded under pressure. Ransome's artificial stone, sand agglomerated by silicate of lime, has been used for grindstones with excellent effect. In a test trial between Ransome's (English) arRansome's (English) artificial grindstones and some Newcastle grit to ascertain which had the greatest abrasive effect, it was found that the Ransome stone ground away 1/4 ounce from a steel bar 3/4 inch diameter in sixteen minutes, while a Newcastle stone (natural grit) driven at twenty per cent greater speed required eleven hours to effect the same wo
Knight's Mechanical Encyclopedia (ed. Knight), P. (search)
hment of the draft The draft-rod, extending from the clevis to the sheth. Many modifications are found. The colter is sometimes a wing from the upper forward edge of the mold-board; or it is a cutting-wheel in advance. The draft-rod is not universal, but adds to the strength of the implement. The mold-board was, as its name indicates, formerly of wood. It was first made of iron by Small of Berwickshire, Scotland, about 1764. The chilled cast-iron plowshare was patented by Ransome of Ipswich, England, 1803. The under side and points are hardened, and the top wears away, leaving a comparatively thin edge of hard, chilled iron. This is an imitation of the provision of nature, whereby the teeth of the rodentiae are kept sharp, the external enamel keeping in advance of the softer parts which are sloped away from the cutting edge. The points to be aimed at in the construction and management of a plow are as follows:— A sharp, clean tapering form to the part which
Knight's Mechanical Encyclopedia (ed. Knight), R. (search)
l their intended purpose with considerable success. The more prominent of these are constructed on the general plans of Ransome and Sims, or of R. W. Thomson of Edinburgh, who introduced the flexible rubber tire. James's (b, Fig. 4359), patentedline. It has coupled drive-wheels, the tread of which consists of segments of a circle supported on separate spokes. Ransome and Sims's self-moving engine (Fig. 4360) is adapted for hauling light loads on common roads. Ransome and Sims's roaRansome and Sims's road-locomotive. These engines have a single cylinder. The driver and steersman are placed behind the engine, thus enabling them to communicate with and assist each other. All the apparatus for starting the engine, reversing and applying the brakost roof, Birmingham theater, England. Iron roofs were first used in England, and were the subject of a patent by Robert Ransome, 1783. They are composed of essentially the same members as those of timber, malleable rods or flat bars Roof o
Knight's Mechanical Encyclopedia (ed. Knight), S. (search)
lows, the whole working portion is a share which cuts, lifts, and throws the furrow-slice. Ransome, of Ipswich, England, patented the castiron share in 1785. He patented the case-hardening ofannounced his success in 1825, and published a pamphlet shortly before his death, in 1856. Mr. Ransome, of Ipswich, England, has also contributed to the success of the process. It forms an essential ingredient of Ransome's artificial stone. It has been used in painting on glass; surfacing stone, wood, and other materials to render them water-proof; covering roofs, for the same purpose; glconcrete. Artificial stone, having silica as the cementing material, was first introduced by Ransome. He originally made this stone by boiling flints, under a pressure of about 60 pounds to thete and apply asphaltum varnish. It has been adopted on the new Parliament Houses of London. Ransome's is to saturate with silicate of soda and then with chloride of calcium. The chemical reactio
Knight's Mechanical Encyclopedia (ed. Knight), T. (search)
r distribution to the granaries, to the bruisers, which fit it for feed. It is driven by an overshot water-wheel 18 feet in diameter, 4 feet wide. English thrashing-machine and portable engine. Cresy gives the quantity of wheat thrashed and cleaned by the English machines as from 12 to 24 bushels per hour. This is not over one third of the work performed by an American machine of good quality, on reasonably good wheat. Perhaps Cresy's figures are not up to the present mark. Ransome's English thrashing-machine (Vienna Exposition). Thread. 1. In the manufacturer's language, thread is a compound cord consisting of two or more single yarns, doubled and twisted. In the trade it is divided into Lace thread. Stocking thread. Sewing thread. Lace thread consists of two yarns, Nos. 140 to 350, twisted together. Stocking thread varies in the number of its yarns. Sewing thread consists of three or more yarns united and intertwisted. The doubling an
Knight's Mechanical Encyclopedia (ed. Knight), W. (search)
ammed, I can assure you, does continue for years in an imperishable state, and is neither affected by rain, by wind, nor by fire, and neither mortar nor cement is used in them. These must have been what are now termed pise--work (which see). Ransome's process (English) for rendering walls impervious to moisture is as follows:— The external surfaces of the walls to be protected are first washed with a silicate of soda or solution of flint, which is applied again and again, until the bricksulted:— No.Name and Year. 4,560.Von Schmidt, 1846. 47,132.Robbins, 1865. 48,636.Hamar, 1865. 49,146.Palmer, 1865. 49,382.Cooley et al., 1865. 52,046.Holmquist, 1866. 53,217.Eddy, 1866. 53,267.Buell, 1866. 54,194.Myers, 1866. 55,216.Ransome, 1866. 57,960.Perry, 1866. 58,203.Benjamin, 1866. 60,794.Samuels, 1867. 4,158.Samuels (reissued), 1870. 62,334.Holmes, 1867. 62,956.Harvey, 1867. 63,300.Prindle, 1867. 64,703Pustkutchen, 1867. 65,545.Constant et al., 1867. 67,104.Clark