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Harper's Encyclopedia of United States History (ed. Benson Lossing) 137 137 Browse Search
Lucius R. Paige, History of Cambridge, Massachusetts, 1630-1877, with a genealogical register 25 25 Browse Search
Knight's Mechanical Encyclopedia (ed. Knight) 25 25 Browse Search
H. Wager Halleck , A. M. , Lieut. of Engineers, U. S. Army ., Elements of Military Art and Science; or, Course of Instruction in Strategy, Fortification, Tactis of Battles &c., Embracing the Duties of Staff, Infantry, Cavalry, Artillery and Engineers. Adapted to the Use of Volunteers and Militia. 16 16 Browse Search
Benjamin Cutter, William R. Cutter, History of the town of Arlington, Massachusetts, ormerly the second precinct in Cambridge, or District of Menotomy, afterward the town of West Cambridge. 1635-1879 with a genealogical register of the inhabitants of the precinct. 15 15 Browse Search
HISTORY OF THE TOWN OF MEDFORD, Middlesex County, Massachusetts, FROM ITS FIRST SETTLEMENT, IN 1630, TO THE PRESENT TIME, 1855. (ed. Charles Brooks) 10 10 Browse Search
Cambridge History of American Literature: volume 1, Colonial and Revolutionary Literature: Early National Literature: Part I (ed. Trent, William Peterfield, 1862-1939., Erskine, John, 1879-1951., Sherman, Stuart Pratt, 1881-1926., Van Doren, Carl, 1885-1950.) 9 9 Browse Search
Francis Jackson Garrison, William Lloyd Garrison, 1805-1879; the story of his life told by his children: volume 2 8 8 Browse Search
Edward L. Pierce, Memoir and letters of Charles Sumner: volume 1 7 7 Browse Search
The Daily Dispatch: March 13, 1862., [Electronic resource] 5 5 Browse Search
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Browsing named entities in Knight's Mechanical Encyclopedia (ed. Knight). You can also browse the collection for 1797 AD or search for 1797 AD in all documents.

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Knight's Mechanical Encyclopedia (ed. Knight), A. (search)
moistened hot-air in his Air Engine, English Patent, 1797. See air engine. The air is moistened before re be heated. The same may be said of Glazebrook's, 1797, with the additional remark that Glazebrook condense as it is found in the English patent of Glazebrook, 1797. Stirling's regenerator is described as consisting e described as found in Glazebrook's English patent, 1797; a condensed statement of which is as follows: 1. Af Lilley, English patent, 1819, and in Glazebrook's, 1797. This patent of Glazebrook, in connection with his enerator was used by Stirling, 1816, and Glazebrook, 1797, in air-engines. The forms of the regenerators, howrst class is after the similitude of the Glazebrook, 1797, and Lilley, 1819. Ericsson's air-engine (1855). the principle of the English patents of Glazebrook, 1797; and Parkinson and Crosley, 1827. Laubereau, Apriengines, of moistened air as suggested by Glazebrook 1797, Oliver Evans about the same time, and by Bennet 183
Knight's Mechanical Encyclopedia (ed. Knight), B. (search)
ound the trunk, which enable it to be removed in lengths, the barker requires peeling-irons, which are thrust beneath the bark to loosen it. The operation is performed in spring, when the sap is abundant between the bark and the wood. Peeling-irons. Rossing is not the exact equivalent of barking, as the former is a grinding or cutting action (usually), the latter a peeling. See London's Encyclopedia of agriculture. Bark-grinding mill. Bark-grinding mill. Weldon's Bark-Mill, 1797, has a conical iron drum A provided with teeth, and rotating in a casing B, the upper part of which forms a flaring hopper. The casing and its contained grinder are supported by a framing F, and motion is given to the cone by a belt running upon a drum on the upper end of the shaft D, whose lower end is supported in a step or ink. A screw below the step affords means for adjustment of the cone in the casing, the faces of the two being toothed, so as to effectually rasp the bark as it passes
Knight's Mechanical Encyclopedia (ed. Knight), G. (search)
the off-wheel is the larger, as it runs in the furrow while the near wheel runs on the land. Somerville's double-furrow plow. The originator of the double plow seems to have been Lord Somerville, who devoted much attention to the practical details of agriculture (1799). His plow, which he called a double-furrow plow, consisted of a beam suitably bent for the attachment of two plows, one placed laterally and to the rear of the other, as usual. Mr. Ducket of Esper, England, used, in 1797, a double plow, drawn by four horses, and turning two furrows. The plow was not commended in England, especially in those places where it took and yet takes two persons to manage one plow. The idea of making one man operate two plows was preposterous. Lord Somerville invented a movable-flap moldboard, by which the hinged rear portion might be set out or in, according to the width required for stubble or sod plowing. A set screw at the back secured the flap at the desired adjustment.
Knight's Mechanical Encyclopedia (ed. Knight), H. (search)
nds:— First, those which draw their supplies directly from the atmosphere, and discharge them into the atmosphere again after they have produced their effect. Such are the Ericsson, Stillman, Roper, Baldwin, Messer, Wilcox engines, described on pp. 40-43. See also Dr. Barnard's report on the French Exposition, pp. 34-40, and plate 1. Second, those which employ continually the same air, which is alternately heated and cooled, but which is not allowed to escape. Such are the Glazebrook (1797), Parkinson and Crosley (1827), Laubereau (1849), Schwartz, described on pp. 43, 44. These and other distinguishing features are described under air-engine(which see). Hot-air Fur′nace. One in which air is heated for warming houses, or for purposes of drying, usually the former. The arrangements are various, but a common kind is a form of stove in a brick chamber, the air coursing around the stove and among certain pipes and chambers in which circulate the volatile products of combu
Knight's Mechanical Encyclopedia (ed. Knight), I. (search)
aphtha. See Greek-fire. The Arabs had an incendiary composition formed of sulphur, saltpeter, and sulphide of antimony, mixed into a paste with juice of black sycamore, liquid asphaltum, and quicklime. The French engineer Chevallier, about 1797, invented a compound which would burn under water. Shells, charged with this or a similar substance, are said to have been found on some of the ships of the French fleet which carried Napoleon and his army to Egypt, and were afterwards taken or modern incendiaryshells. The use of incendiary compounds appears to have gradually become obsolete, as we hear little or nothing of their employment until toward the close of the eighteenth century, hot shot being used as a substitute. About 1797, Chevallier, in France, invented an incendiary compound, which seems to have been tried to a limited extent by the French government, for filling shells. Since then, many inventors have exercised their ingenuity upon this subject, the principal o
Knight's Mechanical Encyclopedia (ed. Knight), L. (search)
k or body of the bladder that is cut, the instrument might more properly be called a cystotome. Li-thot′o-me — cache. （Surgical.) An instrument used in lithotomy. It is introduced with blades concealed in a sheath, from which they are protruded, by pressing upon a lever, on reaching the place of operation. The incision is made by withdrawing the instrument. It is made single or double bladed. Called also a bistouri-cache. This instrument is specifically recommended by Sabatier, 1797, in an article read before the National Institute of France, October 6, 1797. Li-thot′o-my-bi-sect′or. （Surgical.) An instrument for making the bilateral incisions in lithotomy. Li-thot′o-my-for′ceps. An instrument (b, Fig. 2978) for extracting stone from the bladder through the opening previously made by lithotomy. Its blades are concave, with rasp teeth cut in to take a firm hold on the stone, the outer surface well rounded to admit of easy introduction, with crossed
Knight's Mechanical Encyclopedia (ed. Knight), M. (search)
ng, and the mole as it progressed drew in 300 feet of tiling after it. A hole was dug at each commencement of operations. See drain-tile. It is sometimes drawn by four or six horses, and, perhaps, more often by a rope from a capstan, as in Fig. 3208, in which the capstan is shown anchored in position, and the standard of the mole-plow has a clevis for the attachment of the mole. Ditching and mole plow. The mole-plow is described in White's English patent for a draining implement, 1797. It is thus described in a report, November, 1797: — The principle of this invention consists in the patentee's mode of forming a sort of subterraneous channels, cavities, soughs, or drains, from every part of the ground to be drained, which channels run into a principal drain or ditch, cut by hand in the usual way. These subterraneous channels he forms by a particular species of share, foot, or wedge, affixed to a sort of plow, which is drawn by horses in the usual way. In the beam
Knight's Mechanical Encyclopedia (ed. Knight), O. (search)
receives an oscillation in a vertical plane, while the sleeve to which its hub is secured is oscillated in a horizontal plane, so that it receives a double oscillation, once around its own axis and also around the axis of the vertical shaft. In another form, the blades are oscillated with their rockframe, and are feathered, so as to move forward edgeways and move backward flatways to propel the boat. A canal-boat, propelled by oars, was used on the Sankey Canal, Lancashire, England, in 1797. The oars made 18 strokes per minute, and were operated by a steam-engine. Oar-swiv′el. A pivotal device for an oar on the gunwale. A rowlock. In the example, the oar is hung in gimbals, which allow it vibration in any plane, and it has besides a capacity for rotation on its own longitudinal axis in feathering. See rowlock. Oast. A hop-drying kiln. Oast. The kiln has an upward draft, the floor being perforated and the hops lying upon hair-cloth. In the example, the fur
Knight's Mechanical Encyclopedia (ed. Knight), P. (search)
lows which dates from the middle of the last century. Whether this name is derived from Rotterdam cannot now be determined The American plow, during the colonial period, was of wood, the mold-board being covered with sheet-iron or plates made by hammering out old horseshoes. Jefferson studied and wrote on the subject, to determine the proper shape of the mold-board. He treated it as consisting of a lifting and an upsetting wedge, with an easy connecting curve. Newbold of New Jersey, in 1797, patented a plow with a mold-board, share, and landside all cast together. Peacock, in his patent of 1807, cast his plow in three pieces, the point of the colter entering a notch in the breast of the share. Jethro Wood of Scipio, N Y., patented improvements in 1819, and made the best plows up to date. He met with great opposition and then with much injustice, losing a competence in introducing his plow and fighting infringers. The peculiar merit of his plow consisted in the mode of securi
Knight's Mechanical Encyclopedia (ed. Knight), R. (search)
head from an escaping volume of air or gas, in order that it may be imparted to a body of incoming air. The object is economy of fuel by conservation of heat. An illustration of this may be found in the airengine of Glazebrook, English patent, 1797, and in Stirling's English patent, 1816. The latter had the metallic sieves of wire gauze afterward adopted by Ericsson. Their use in this connection is a fallacy. See air-engine. See also Regenerating-furnace. Reg′is-ter. 1. A device fo. These were introduced into the dockyard at Chatham, England, and effected a great improvement in the manufacture of cables and cordage. See also English patents, — Sylvester, 1783; Seymour, 1784; Fothergill, 1793; Balfour, 1793, 1798; Chapman, 1797, 1799, 1807. In the year 1820, machinery was introduced into the United States from England, for working the spun yarn into strands and ropes. Mr. Treadwell introduced his rope-making machinery in 1834. In the ordinary process of manufact
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