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Harper's Encyclopedia of United States History (ed. Benson Lossing) 182 182 Browse Search
Lucius R. Paige, History of Cambridge, Massachusetts, 1630-1877, with a genealogical register 48 48 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. 16 16 Browse Search
Knight's Mechanical Encyclopedia (ed. Knight) 14 14 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.) 11 11 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. 9 9 Browse Search
Francis Jackson Garrison, William Lloyd Garrison, 1805-1879; the story of his life told by his children: volume 2 9 9 Browse Search
Edward L. Pierce, Memoir and letters of Charles Sumner: volume 1 8 8 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.) 8 8 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 1795 AD or search for 1795 AD in all documents.

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ments and forms a joint almost or quite as perfect as the general substance of the metal. The process is repeated for every joint of the circle. Cast-iron is also united by burning. It was first practiced by the native smiths of India and China, 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-Seang, or bellows. Its principle is that of the double-acting force-pump, and it is constructed wholly of wood, except the valves and packing of the piston, which are paper, and singularly durable. The long coarse file, with a prolonged smooth extremity to
wing year, in repeating Franklin's experiment, was killed by a stroke of lightning. Charles Marshall, in 1753, proposed insulated wires, suspended by poles, as electrical conductors for transmitting messages. Lesarge, in 1774, used twenty-four electrized wires and a pith-ball electrometer 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. Cavallo, in 1795, had one wire, and talked by sparks. He had an explosion of gas for an alarm. 2. (Surgical.) A grooved staff for directing a penetrating instrument in surgical operations; such as the forceps in extracting balls; lithontriptic instruments, etc. Conduit. (Hydraulic Engineering.) A pipe or passage, usually covered, for conducting water. Conduit of the Pont du Gard. Cone. The ventplug which is screwed into the barrel of a fire-arm (A, Fig. 1424). The outer end is the nipp
he 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 current had to pass through eight miles of wire, and the signals were made by means of light pith-balls. The reading was effected by dials at each station having a synchronous movement derived from clo
(Architecture.) The space between the triglyphs in the frieze of the Doric order. Me-tren′chy-tes. (Surgical.) A syringe for injecting medicated liquids into the uterus. Met′ric Sys′tem. The system adopted by the French convention in 1795, in which all measures of length, area, capacity, and weight are based upon the length of a quadrant of the meridian measured between the equator and the pole. The origin of the system is due to the government of Louis XV., who named a commissi1,960.33 sq. yards or 2.471 acres=2 a. 1 r. 35.376p. Table. 100 centiares make1 are. 10 ares make1 decare. 10 decares make1 hectare. The United States, however, led the way in decimal currency. The metric system, though adopted in 1795, was not fully carried into effect until 1840. It is now employed throughout a large part of Continental Europe, and seems in a fair way to be generally adopted at some not very distant day in the United States, where it may now be legally emp
hine 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 En Lever-machine.Twist-machine. Straight-bolt machine.Pusher-machine. Circular-bolt machine. The warp-machine, based on the stocking-frame, was invented about 1795, and is employed in making lace, and also knit jackets, Berlin gloves, and similar articles. See bobbinet-machine; lacemaking machines. Net′ting-nee′dle. Ay be said of Russia, where the periodical press was first introduced under the auspices of Peter the Great; and of Turkey, whose first newspaper only dates back to 1795. Newspaper-file. News′pa-per ad-dress′ing-machine′. A machine for printing addresses on newspaper wrappers or attaching printed labels to newspapers or
he framing sufficiently, and the oblique position of the action with respect to the strings and keyboard is also an objection; nevertheless, this form is the best substitute for the grand. The upright piano was patented by Stodart in England in 1795. It was at first a grand, set on end, raised on legs two or three feet above the floor, and struck at the lower end. This, the upright-grand, as it was termed, was unwieldy from its great hight, and was superseded by the cabinet, invented by Souts placed amidships, respectively fore and aft the engine, and working in a trough extending from stem to stern of the boat, over the keel. In 1789, Oliver Evans, of Philadelphia, had a stern-wheel steamboat which navigated the Schuylkill. In 1795, Lord Stanhope invented the duck-feet paddles, and ran a boat three miles an hour. In 1796, Fitch had a steamboat on Collect Pond, New York, propelled by a screw astern. In 1802, Symington's double boat, Charlotte Dundas, was propelled by on
ci of the reflectors, is a lamp c, whose beams are thus thrown in both directions in nearly horizontal beams of limited lateral divergence. 2. A short name for the reflecting-telescope (which see). 3. The reflector has also been extensively used for radiating the heat from an open fire into an apartment. Gas-light reflector. Street-car lamp-reflectors. Dr. Franklin and Count Rumford appear to have been the first who put forward intelligent ideas on this subject. As early as 1795, a patent was taken out in England for a removable reflector, and in 1805, polished metallic reflectors were placed on each side of the fireplace, to be turned at any angle to reflect the heat of the fireplace into the room. In 1816, the fire-grate was inclosed in a hollow metallic globe opening in front of the grate. In 1852, the hearth, cheeks, and faces of the grate were made of polished steel. Several devices for radiating heat were patented in this year. Sylvester's invention for t
ter period. Steam-heating vats seem to have originated in America, but formed the subject of a French patent of 1822. The quick process was proposed by McBride in 1759, but he extracted the tanning material with lime-water. It was not until 1793-95 that the active principle requisite to the success of the process — tannic acid — was recognized by Deyeux and Seguin of Paris. It was rendered practical by Fay in England, 1790, and Seguin in France, 1795, and improved by Desmond, Brewin, Cant, a1795, and improved by Desmond, Brewin, Cant, and Miller. In 1839 the use of lime from gas-purifying works, previously suggested by Professor Boettger of Frankfort, was introduced into Berlin. Half-dried sole-leather was formerly rendered compact and, to some extent, flexible, by being beaten by hand with hammers. In Switzerland, as early as 1800, water-power hammers, and, subsequently, stamps were employed. In 1842, Berendorf of Paris invented pressing-stamps, which were supplemented by Harvey and Debergue with a roller, which effec
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 we may