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Harper's Encyclopedia of United States History (ed. Benson Lossing) 238 238 Browse Search
Knight's Mechanical Encyclopedia (ed. Knight) 31 31 Browse Search
Lucius R. Paige, History of Cambridge, Massachusetts, 1630-1877, with a genealogical register 28 28 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.) 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. 13 13 Browse Search
Francis Jackson Garrison, William Lloyd Garrison, 1805-1879; the story of his life told by his children: volume 1 11 11 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.) 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) 11 11 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
Edward L. Pierce, Memoir and letters of Charles Sumner: volume 1 8 8 Browse Search
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Browsing named entities in Knight's Mechanical Encyclopedia (ed. Knight). You can also browse the collection for 1824 AD or search for 1824 AD in all documents.

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Knight's Mechanical Encyclopedia (ed. Knight), A. (search)
as a precaution against spontaneous combustion. Air — tube for conveying letters, goods, and passengers. This idea suggested by Dr. Papin about 1695, patented by Medhurst in England 1810, on the air-compression principle, and by Vallanee in 1824 on the exhaust principle, has come into operation to some extent, and is considered under the head of pneumatic tube (which see). Air — valve. （Steam-engine.) A valve in a steamboiler, which opens inwardly to allow air to enter when the inhus be conveyed 50 miles at a cost of 12 s. and at the speed mentioned. The project fell upon the dead ear of the public. Twelve years afterward the idea was revived in a changed form. Retaining the tube and carriage of Medhurst, Vallance, in 1824, obtained a patent in England for his modified plan, which consisted in using a partial vacuum in front of the carriage, allowing the natural atmospheric pressure in the rear to impel the carriage. In this he differed from Papin and Medhurst, who<
Knight's Mechanical Encyclopedia (ed. Knight), C. (search)
used on inclined planes in connection with wheels on the locomotive in ascending or descending the grade. The first of these was Blenkinsop's patent of 1811. The middle rail was a rack, and was engaged by a cogged wheel on the locomotive by which the ascent was secured. No particular provision was made for descent. The device was primarily intended as an aid to traction, as it was supposed at that time the bite of the drivers on the rail would be insufficient. Snowden (English), in 1824, had a center-rack and what he called a mechanical horse. A bevel cogwheel on the locomotive acted upon gearing on the horse, and the latter had a wheel engaging the centerrack, so the horse was advanced and drew the train. Easton (English patent, 1825) specifies a central rack placed between the two rails, and a spur gear on the locomotive. In addition to this, the smooth sides of the rail form guides, lateral wheels running in a horizontal plane beneath the engine or carriage, bearing u
Knight's Mechanical Encyclopedia (ed. Knight), D. (search)
d stepping — up pieces of the cradle on which the vessel rests in launching. Da-guerre′o-type. The photographic process invented by Daguerre during the years 1824 – 39, resulting in the use of the camera for the exposure of a silver or silvered plate, sensitized by exposure to fumes of iodine in a dark chamber. The latent iiamond and a plate-glass lens of similar form and radius are in their comparative magnifyingpowers as 8 is to 3. Diamond lenses were made by Andrew Pritchard in 1824. One was recently made in London at a cost of £ 250 sterling. Diamond mortar and grinder. Di′a-mond-mor′--tar. Diamonds for the use of the lapidary are cle represents the divisions of a circumference into a given number of parts. Dobe-rein′er's lamp. An instrument invented by Professor Dobereiner, in Jena, in 1824, for obtaining light by the projection of a jet of hydrogen upon a piece of spougy platinum. See hydrogen lamp. Dock. 1. (Hydraulic Engineering.) A
Knight's Mechanical Encyclopedia (ed. Knight), G. (search)
xplosion being the means of expelling the air, the condensation of the gases producing a partial vacuum in the chamber. See Brown's English patent, vacuum engine, 1824. D'Hautefeuille, in 1678, seems to have been the first to use this power; Hugyhens applied if in a cylinder so that the atmospheric pressure might force a pisby Steel and Brunton, English patents, about 1819. Grates. Grate-bars of hollow tubes, connecting waterboxes at front and rear, were introduced by Chapman in 1824. See smoke-consuming furnace. In 1825, Atkins attached a fuel-chamber to the back grates, the bottom of the chamber being made to slope at a considerable angl have been substituted for stones. Among the first of these was the French military mill, the invention of Francis Devreux, to whom a patent was granted for it in 1824. The principle is that of metallic groove plates turning in a vertical plane; the grooves cut radiating from the center of the plate. One of the plates is fixed
Knight's Mechanical Encyclopedia (ed. Knight), I. (search)
ntinuance of the operation. Professor Leslie succeeded in freezing quantities of water from 1 to 1 1/2 pounds in weight, though he could not effect the congelation of much larger quantities. This method of promoting evaporation John Vallance, in 1824, improved by removing the atmospheric pressure, which enabled him to carry off the vapor from large surfaces of water and consequently freeze large quantities of ice. The Parisian restaurants have decanters (carafes frappees) filled with water nerators, from the fact that the jet of water instantly flashes into steam. Trouble has been found in the rapid corrosion, and in the cracking of the material of the boiler. Instantaneous generator. McCurdy's English patent (A, Fig. 2685), 1824, has a tube into which is introduced a smaller tube with perforations which deliver a fine shower into the outer tube, which is exposed to the heat of the furnace. Dr. Alban, of Mecklenburg, patented, in 1825, a device (B, Fig. 2685) in which s
Knight's Mechanical Encyclopedia (ed. Knight), L. (search)
tine, leather parings. Bark infusions, alum. In various combinations and proportions. Gunby's artificial leather, 1824 (English), cotton, linen, woolen, or felt cloth is coated with the following composition:— Common glue-size, 8 parts; bctive power is supposed to render it specially suitable for an eye-glass. Diamond lenses were made by Andrew Pritchard in 1824. A doublet is an arrangement of two plano-convex lenses, invented by Wollaston, as shown at a a; b is a diaphragm. c dmeter, which carry down any water that is shipped by the boat. The saving of life by life-boats in the British Islands, 1824 – 65, was 14,980 persons. Life-buoy. （Nautical.) A buoy or float which is thrown overboard to sustain a person untf liquid received or discharged through an orifice. See meter, water. It does not appear to have been in use prior to 1824, when William Pontifex of London, England, patented a new mode of adjusting or equalizing the pressure of fluids or liquid<
Knight's Mechanical Encyclopedia (ed. Knight), P. (search)
sawed to an even length, set endwise to the wear of travel. Macadamizing was named from the inventor, and introduced in 1824. It consists in substituting broken granite for gravel as a top dressing, and is much superior to the latter for country f Henry VIII., it is said, used brass pins brought from France. Before the introduction of Wright's pin-making machine, 1824, the following was the process: Brass wire was straightened by drawing it between pins set in zigzag order on a bench, anderated the following:— The first list is from English patents, and gives the number and year of the patent. 5,032 of 1824. The piston is padded with linen or woolen material, placed smoothly on both sides of the piston, with a thin piece of paed to apply it to driving passenger-cars at the rate of fifty miles per hour, the cars taking the shape of the tube. In 1824, Vallence received an English patent for a substantially similar mode, excepting that the air was exhausted in front of th
Knight's Mechanical Encyclopedia (ed. Knight), R. (search)
l laid down on one side of the railway, from end to end. A cog-wheel was rigged out from the locomotive so as to engage with the rack and propel the train. It was at that time supposed that the adhesion of the driving-wheels to the track would not be sufficient under ordinary circumstances to enable the locomotive to draw the train. See locomotive, Fig. 2984. Chapman, in 1812, substituted four pairs of drivers connected by gearing, so as to multiply the frictional contact. Snowden, in 1824, had a hollow trunk between the two rails and depressed below the surface. On one side of this trunk was a rack, and the trunk itself had rails traversed by a carriage, which the inventor termed the mechanical horse. On the horse was a vertical shaft with a horizontal cog-wheel at its lower end gearing into the rack, and a bevel-wheel above engaged by a similar wheel on the front of the locomotive, and driven by the engine. As the wheel on the locomotive rotated, the upright shaft conveyed
Knight's Mechanical Encyclopedia (ed. Knight), S. (search)
which assists in the combustion of the smoke. Chapman's furnace (1824) had hollow grate-bars, forming a series of parallel tubes opening ists in injecting jets of steam into the furnace. Evans, in England, 1824, patented a method in which the steam was to be decomposed by passincket in New York, and her engines made at Elizabethtown, N. J. In 1824, the Enterprize, under Captain Johnson, made a voyage to India, doubotherwise practically useful. Burstall and Hill's steam-carriage, 1824. This machine bears some resemblance to the former, having the engie machine was not successful. James, of Birmingham, England, from 1824 to 1832, appears to have constructed several steam-carriages. He casuccess, but was commercially a failure. Gordon's steam-carriage, 1824, had feet which were dropped, propelled, and lifted in regular succekins exhibited a steam-gun in England before the Duke of Wellington, 1824. It was very effective, but the Iron Duke considered that a steam-b
Knight's Mechanical Encyclopedia (ed. Knight), T. (search)
demand for tubing of various lengths and sizes, for which the old barrels would have been unsuited had they not already been exhausted. Under Russell's patent, 1824 (English), the tubes were first bent up by hand-hammers and swages, to bring the edges near together, and then they were welded between semicircular swages, fixed revent its passing between the rollers, so that the barrel is drawn off the mandrel. This is repeated with progressively smaller mandrels and grooves. Russell, 1824 (b j k l o). The skelp welded by grooved anvil and top tool. Whitehouse, 1825 (g k o). The skelp was turned into position for welding, and was then drawn betweection followed, he made an opening in the top, to test the depth below the water, which dashed in and drove out the working part, nearly drowning Trevethick. In 1824, the elder Brunel, Mark Isambert, devised plans for carrying out the work, and, a company having been formed for the purpose, it was commenced on the 1st of Januar
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