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Harper's Encyclopedia of United States History (ed. Benson Lossing) 156 156 Browse Search
Lucius R. Paige, History of Cambridge, Massachusetts, 1630-1877, with a genealogical register 43 43 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. 19 19 Browse Search
Knight's Mechanical Encyclopedia (ed. Knight) 17 17 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. 11 11 Browse Search
Baron de Jomini, Summary of the Art of War, or a New Analytical Compend of the Principle Combinations of Strategy, of Grand Tactics and of Military Policy. (ed. Major O. F. Winship , Assistant Adjutant General , U. S. A., Lieut. E. E. McLean , 1st Infantry, U. S. A.) 10 10 Browse Search
Francis Jackson Garrison, William Lloyd Garrison, 1805-1879; the story of his life told by his children: volume 2 10 10 Browse Search
George P. Rowell and Company's American Newspaper Directory, containing accurate lists of all the newspapers and periodicals published in the United States and territories, and the dominion of Canada, and British Colonies of North America., together with a description of the towns and cities in which they are published. (ed. George P. Rowell and company) 8 8 Browse Search
The Daily Dispatch: March 13, 1862., [Electronic resource] 7 7 Browse Search
Cambridge History of American Literature: volume 3 (ed. Trent, William Peterfield, 1862-1939., Erskine, John, 1879-1951., Sherman, Stuart Pratt, 1881-1926., Van Doren, Carl, 1885-1950.) 7 7 Browse Search
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Browsing named entities in Knight's Mechanical Encyclopedia (ed. Knight). You can also browse the collection for 1794 AD or search for 1794 AD in all documents.

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ng the whole apparatus, which was speedily consumed, precipitating the aeronauts to the earth. Balloons were introduced into the French armies at an early period during the wars of the Revolution, and were used at the battles of Liege, Fleurus, 1794, and at the sieges of Maintz (Mayence) and Ehrenbreitstein, where they were found particularly useful, as only by such means could operations in the elevated citadel be observed. The French armies are attended with a new species of reconnoiterina, who occasioned much surprise to their Occidental neighbors by the way in which they mended castiron kettles and pots, which were supposed to be irretrievably ruined. The first notice of it by Europeans appears to have been by Van Braam, in 1794-95, who was attached to the Dutch Embassy at Pekin, and who afterwards settled in the United States. The figure represents the itinerant artist with his portable forge, at work in the street. The front half of the wooden chest is his Fung-Sean
between the Baltic and North Seas at Kiel was opened 1785. That from the Cattegat to the Baltic, 1794-1800. The main line of the Ganges Canal, 525 miles long, for irrigating the country between the eer Perronet, who executed so many heavy public improvements during the last century (b. 1708; d. 1794), seems to have been capable of great projects, original devices, fanciful ornamentation, gracefuectrometer as a mode of signaling. Lomond, in 1787, used one wire and a pith-ball. Reizen, in 1794, had twenty-six line wires and letters in tin-foil which were rendered visible by electricity. arrying cotton to the upper stories. Cot′ton-gin. A device, originally invented by Whitney, 1794, in which lint is picked from the seed by means of saw-teeth projecting through slits in the sider-frame, Arkwright, 1769. Power-loom, Rev. D. E. Cartwright, 1785. Cotton-gin, Eli Whitney, 1794. Dressing-machine, Johnson and Radcliffe, 1802– 1804. Power-loom, Horrocks, 1803-1813. M
of the alphabet, or bells which were to be moved by an electric current directed to the appropriate wire. Lesage, at Geneva, in 1774, actually constructed a telegraph arranged in this manner, the end of each wire having a pith-ball electroscope attached. Lamond, in 1787, employed a single wire, employing an electrical machine and electroscope in each of two rooms, and thus talking with Madame Lamond by the peculiar movements of the pith-balls according to an agreed code; and Reusser, in 1794, proposed the employment of letters formed by spaces cut out of parallel strips of tin-foil pasted on sheets of glass, which would appear luminous on the passage of the electric spark. In 1795, Cavallo proposed to transmit letters and numbers by a combination of sparks and pauses. Don Silva, in Spain, appears to have previously suggested a similar process. See electrical apparatus. In 1816, Mr. Ronalds experimented with a frictional electricity telegraph at Hammersmith. The curren
f in a cylinder so that the atmospheric pressure might force a piston downward when the vacuum was thus formed beneath it. Papin substituted a bell-valve over the air-eduction port, for the collapsible leathern tubes of Huyghens. In 1791 Barber took an English patent for a gasengine in which a stream of carbureted hydrogen gas was introduced at one induction port and a quantity of atmospheric air at another, the resulting combustion giving an explosive force against the piston. Street, in 1794, proposed to use the expansive power of heated gas instead of its explosive power. Lebon's French patent of 1799 described the distillation of carbureted hydrogen from coal, and its introduction into the cylinder beneath the piston and simultaneously at another channel a proper proportion of atmospheric air. The mixed gases were then exploded by the electric spark (see also Pinkus's English patent, 1840), their dilatation furnishing the desired motive-power. The engine was self-regulating a
A small stone-hammer (u, Fig. 3032) used by sculptors and marble-workers. It is pointed at one end and square or diamond-shaped at the other. Marte-line′--chis′el. A sculptor's chisel, driven by a mallet or hammer, and used by artists or workers in marble. q r s t, Fig. 3032, show several forms. Mar-tel′lo-tow′er. (Fortification.) A circular, isolated tower of masonry, named from Mortella Bay, Corsica, where a tower of this description was taken by an English naval force in 1794, after a prolonged resistance. The capacity for defense excited so much surprise and admiration, that numerous towers were planted along the English, Irish, and Jersey coasts, in anticipation of the invasion of Napoleon I. The tower is usually about 40 feet in hight, having two stories, and a shell-proof roof with a 4 1/2-foot parapet. The walls are 5 1/2 feet thick; the lower story is for stores, magazine, and retreat; the second is a casemate with embrasures; the roof is armed en
Cut-nails were first made in this country. About 1775, Jeremiah Wilkinson of Cumberland, R. I., cut tacks from plates of sheet-metal, and afterward made nails and spikes in a similar manner, forming the heads in a vise. Ezekiel Reed of Bridgewater, Mass., in 1786, invented a machine for cutting nails from the plate, and in 1798 obtained a patent for cutting and heading them at one operation. Benjamin Cochran had also constructed a machine of this kind; and Josiah Person of New York, in 1794, patented a machine for cutting nails from the sheet. Perkins's machine, invented 1790 and patented in 1795, is said to have been capable of making 200,000 nails per day. These, and Odiorne's, which embraced some improvements upon them, attracted great attention in England, where they soon came into extensive use. At the close of the century, 23 patents had been granted for improvements in nail-machines. Nail-making machine. In cutting nails from the plate, it is an object of
he screw-propeller by Hooke, 1680; Duquet, 1727; Pancton, 1768; Watt, 1780; Seguin, 1792; Fulton, 1794; Cartwright, 1798; Shorter, 1802. The idea of propelling vessels by a screw in lieu of oars isdepuis 1727 jusqu à 1731. Franklin suggested the same thing. Lyttleton's English patent, in 1794, for an aquatic propeller consisted of a screw of one, two, or more threads wrapped around a cylind prevent its escape. Railway-signal. The first occasion was at the battle of Fleurus, in 1794, when the French used it to ascertain the position and evolutions of the Austrians. It was firede two, mathematical accuracy of workmanship is obtained. Bramah himself patented a slide-rest in 1794. Slide-rest. In Fig. 5188, a is a slide-rest for the foot-lathe. It has a feather fitting ward his ideas of steam-navigation in 1793, and corresponded with Lord Stanhope on the subject in 1794. He took out three British patents, — a double-inclined plane to be used in transportation, a fl
of a letter is delivered, the paper-frame is moved along one space, so that the next selected letter is impressed in proper succession. When the end of the line is reached, the paper-frame is fed upward, at right angles to its former motion, so as to open up a new space for another line of characters. The frame is also moved back in its former path so as to bring the initial point of the new line opposite to the opening at which the letters are presented. See printing for the blind, pages 1794, 1795. Gall's apparatus, for enabling the blind to write, consisted of a frame on which the paper was placed, a cover with bars to guide the lines, which are written from the bottom upward, and of small stamps with the letters formed of common pins, which are pricked through the paper and read on the opposite side. See United States patents, Nos. 62,206,62,156,71,084, 15,164,125,024,121,026, 132,370, Writ′ing-ink. This does not properly belong to our class of subjects, but w