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Harper's Encyclopedia of United States History (ed. Benson Lossing) 206 206 Browse Search
Lucius R. Paige, History of Cambridge, Massachusetts, 1630-1877, with a genealogical register 31 31 Browse Search
Knight's Mechanical Encyclopedia (ed. Knight) 20 20 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. 14 14 Browse Search
George Ticknor, Life, letters and journals of George Ticknor (ed. George Hillard) 11 11 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
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) 10 10 Browse Search
Cambridge History of American Literature: volume 2 (ed. Trent, William Peterfield, 1862-1939., Erskine, John, 1879-1951., Sherman, Stuart Pratt, 1881-1926., Van Doren, Carl, 1885-1950.) 9 9 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.) 8 8 Browse Search
George Ticknor, Life, letters and journals of George Ticknor (ed. George Hillard) 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 1817 AD or search for 1817 AD in all documents.

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face, shall converge to a single point, the true focus. See achromatic lens. A-pol-lon′i-con. A large chamber-organ played by key-boards or by barrels, and exhibited in London some years since. It was constructed by Flight and Robinson in 1817. It had 1,900 pipes, 45 stops, 5 key-boards and 2 barrels. The number of keys acted upon by the cylinders was 250. Apo-me-com′e-ter. An instrument for measuring hights, invented by a Mr. R. Millar, and manufactured in London. The apomecoevent slipping on each other. The ends of the arched beam are prevented from spreading by a tiebeam, and the arch and tie are connected together by vertical suspension-rods and diagonal braces. Notched arch-beam. Colonel Emy's arched beam (1817) is constructed on a principle differing from both of the foregoing (Fig. 316). The ribs in this roof are formed of planks bent round on templets to the proper curve, and kept from separating by iron straps, and also by the radiating struts which
made A. D. 1134, in the reign of Henry I. The Bridgewater Canal commenced in 1759. In England there are 2,800 miles of canals. Of the American canals : — The James River and Kanawha, 147 miles long, overcomes the greatest grade, having a lift of 1,916 feet. The Morris and Essex, 101 miles long, overcomes a grade of 1,674 feet, accomplished by 29 locks and 22 inclined planes. The Erie, by DeWitt Clinton, is the longest, 363 miles, with 84 locks. The Erie Canal was commenced in 1817, and completed in 1825. The main line leading from Albany, on the Hudson, to Buffalo, on Lake Erie, measures 363 miles in length, and cost about $7,200,000. The Champlain, Oswego, Chemung, Cayuga, and Crooked Lake Canals, and some others, join the main line, and, including these branch canals, it measures 543 miles in length, and cost upwards of $11,500,000. This canal was originally 40 feet in breadth at the water-line, 28 feet at the bottom, and 4 feet in depth. Its dimensions proved too
by Dr. Desagulier, 1734. His fan (A, Fig. 1920) was a wheel 7 feet in diameter, 1 foot wide, and had 12 vanes which approached within 12 inches of the axis, around which was an opening 18 inches in diameter. The vanes rotated as near as possible to the case, which was lined with blanket as a packing. The case was concentric, and had an eduction and an eduction pipe, the one axial, the other peripheral. Such a wheel was used above the ceiling of the British House of Commons from 1736 to 1817. Dr. Desagulier's fan was concentric with its case, but an improvement was to make it eccentric. Fairbairn and Lillie's eccentric fan is shown at B; s is the shaft, b the case, v the vanes, e the eduction opening, o the discharge. The point x is a shoulder which acts as a cut-off in connection with each passing vane, and confines the stream of condensed air to the eduction passage. See also ventilator. Fan-wheel. This usually consists of an armed shaft with wings or beaters, an
for consuming the smoke in furnaces, by supplying the fire from above downward by means of a reservoir of fuel in contact with the ignited mass, the fuel descending by its own weight to supply the consumption. Combustion was supported by a strong lateral current of air passing through the fire to a flue on the other side, near the entrance of which was a supplementary fire which consumed the smoke of the first. Cutler patented a smoke-consuming contrivance for open fires in 1816, and in 1817 Deakin attached a metallic box, holding fuel for one day's consumption, to the back of the fireplace; the fuel was drawn forward horizontally by a screw, as required, and in this way the smoke was nearly all consumed. In the same year Hawkins patented a shovel for supplying coal to the fire at bottom. The shovel had a cover, and the contained coal was pushed forward into the fire by a piston. The revolving grate was introduced by Steel and Brunton, English patents, about 1819. Grates
lkinson, of Bradley Forge, England. It was 70 feet long, 6 feet 8 1/2 inches beam. The plates were 5/16 inch, secured by rivets. The stem and stern-post were of wood, the beams of elm planks. Her weight was 8 tons, capacity 32 tons; she drew 8 to 9 inches of water when light, and plied on the Birmingham Canal. An iron pleasure-boat was launched on the Mersey in 1815 by T. Jevous of Liverpool. It was scuttled by jealous shipbuilders, and an iron life-boat launched by the same person in 1817 experienced the same fate. The first iron steam-vessel launched and put to sea was projected and built for A. Manby of Staffordshire, for the river Seine, in 1821. She took in a cargo of linseed-oil and iron castings, and was navigated direct from London to Havre, and from that port proceeded to Paris, where she discharged her cargo. She navigated the Seine for many years, and may yet. The iron steamboat Alburkah, for the Lander Expedition up the Niger, was built in 1831. She was 70
ne. An instrument invented by Professor Wheatstone, to illustrate the phenomena of waves of sound. An elastic thin bar is fixed by one of its extremities, and at its free end carries a silvered or polished ball; a ray of light is reflected from this ball, and when the thin plate is put in vibration, the fine point of light describes various curves, corresponding with the musical notes produced by the vibrations. Ka-lei′do-scope. An optical instrument, invented by David Brewster, 1814-17. An arrangement of mirrors produces a symmetrical reflection of beautiful images, derived from the association of pieces of colored glass, which assume new relations as the tube is slowly rotated. This instrument is first noticed by Baptista Porta in his Natural magic, under the name of polyphaton. Kircher describes a similar invention of his own, but the application of two reflectors so inclined to each other as to form symmetrical images, changing as the instrument is rotated, was inven
with the upper web simplified the machine and enabled it to perform a greater amount of work. 1806. Francis Guy of Baltimore obtained a patent for paper carpeting. 1809. The cylinder machine invented by Dickenson, an English paper-maker. 1817. High glazing introduced by Heath; also English cardboard manufacture. 1819. The London Society of Arts and Manufactures awarded thirty guineas to Mr. Finsley for the invention of ivory paper. 1821. T. B. Crompton in England obtained a patenas to lie back in an elevated position when raised for the purpose of withdrawing the sheet, inking the type, and placing a sheet thereon. The Columbian hand-press was invented by George Clymer of Philadelphia, who completed his invention about 1817. The Columbian press was considered superior to Stanhope's. The power is applied to the platen by a compound lever, consisting of three simple levers of the second order. This press is interesting as being the first important. American addition
of adjacent rails. The wheel had a tread of 2 1/3 inches, and a flange to keep it on the rail. The sleepers were of wood. Woodhouse's hollow rail (e), with a channel for the rounded edge of the wheel, 1803. The fish-bellied rail at Penrhyn, 1805. Blenkinsop's rack-rail (f), 1811. See Fig. 2984, page 1344. A square-bodied cast rail (g), 1810. Losh and Stephenson's flanged rail (h), 1816. This was a lapping continuous rail. Hawk's cast-iron face upon a wrought-iron base. 1817. Birkenshaw's malleable face upon a cast base, 1820. Birkenshaw, of Bedlington, Durham, invented the rolled rail; the iron, while hot, being passed between grooved rollers of the required pattern (i j k l). m n o p are respectively the Spanish, Marseilles, Strasburg, and Great Western (England) patterns. q, Durham and Sunderland, England. r, Berlin and Potsdam, Prussia. s, London and Blackwall, England. t, Manchester and Birmingham, England. u, Saint-Etienne to Lyon, Fra
in process of formation; as used in the United States paper currency. Tigere, 1817. Treating the pulp or the paper, previous to sizing, with solution of prussiate, 79. The Majestic was navigated from Glasgow to Dublin in 1814, by Dodd. In 1817, 7 steamboats plied on the Thames under Dodd's direction. A Parliamentary commission of 1817 stated the necessity of steam as a marine and river motor, and cited the extensive use of the same in America, which preceded by some years the establid. The growth of the stearine industry dates from the labors of Braconnot in 1817, in separating oleine and stearine, followed by the researches of M. Chevreul. Panding stove, and one as a fireplacestove, with three mica windows. Stratton, 1817 and 1822 (Fig. 5916), are other instances; the latter being much like James Wattot at the lower part of the magazine-cylinder. Magazine-furnaces. (Stratton, 1817 and 1822.) Sexton, in 1856 (p, Fig. 5920), had a covered fuel-cylinder in th
ee tread-wheel. The tread-mill was a Roman institution, and was used for raising water by the work of condemned criminals. The Chinese also use it to irrigate lands. It was introduced into England as a means of prison discipline by Cubitt, 1817. Tread-wheel. A wheel turned by men or animals, either by climbing or pushing with the feet. The tread-mill, formerly used as a means of punishment. Tread-wheel. In Fig. 6634, it is shown employed for raising water. The rope is wounand elongated to a cylinder, by drawing as before. James and Jones, 1811 (b c m p). 1. The heated skelp is turned over a mandrel, and swaged by a hammer, while resting in a grooved anvil. 2. Welded and rolled by grooved rollers. Osborne, 1817 (b c d e n p). The skelp is turned and welded on a mandrel, which has a shield to prevent its passing between the rollers, so that the barrel is drawn off the mandrel. This is repeated with progressively smaller mandrels and grooves. Russell,