Browsing named entities in Knight's Mechanical Encyclopedia (ed. Knight). You can also browse the collection for Geneva, N. Y. (New York, United States) or search for Geneva, N. Y. (New York, United States) in all documents.

Your search returned 10 results in 6 document sections:

Knight's Mechanical Encyclopedia (ed. Knight), A. (search)
ted by the end of a screw which is either turned directly by hand, or, when vertical and inclosed within the burner, is turned by a lever projecting through a slot therein. Argand gas-burner. Argand lamp. Invented by Argand, a native of Geneva, about the year 1784. It consists of two concentric cylindrical tubes between which is fitted the annular wick used in this peculiar burner. The annulus inclosing the wick is closed at the bottom, and communicates, by a pipe, with the oil reser against Constantinople.1453 Louis XI. of France has twelve cannon cast to throw metallic shot, for use as a siege train.1477 Brass cannon first cast in England.1521 Iron cannon first cast in England.1547 Howitzers introduced.1697 Maritz of Geneva introduces the method of casting guns solid and boring them out.1749 Carronades invented by General Melville.1779 For continuation of the subject and details, see ordnance; mortars; projectiles; weapons, etc. In European services, artille
Knight's Mechanical Encyclopedia (ed. Knight), E. (search)
900 toises in length; Watson, the learned Bishop of Llandaff, in 1745, sent a shock through 12,000 feet of wire, and proved that it was practically instantaneous throughout its length. He signaled an observer by this means. A writer in the Scots' magazine, in 1753, proposed a series of wires from the ends of which were to be suspended light balls marked with the letters 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, w
Knight's Mechanical Encyclopedia (ed. Knight), L. (search)
Lancets. The smaller circulation of the blood, that from the heart through the lungs and return, was observed by Servetus. He was burnt October 27, 1553, at Geneva, by the order of the city council of Geneva, aided by one who had barely escaped the same fate, and knew better. The pulmonary circulation was distinctly describGeneva, aided by one who had barely escaped the same fate, and knew better. The pulmonary circulation was distinctly described by Realdus Columbus in his De Re Anatomica, published in 1559, and by Andrew Caesalpinus, who also noticed the refluent motion of the blood in the veins. Sylvius noticed the venal valves. Fabricius, of Acquapendente, noticed that they all opened towards the heart. William Harvey, born in 1578, studied at Cambridge, and undsion. Themison, a physician of Laodicea who flourished a little before Celsus (first century A. D.), mentions the use of leeches. Michael Servetus, burnt at Geneva in 1553, announced and explained the circulation of the blood, correctly describing the action of the heart, the duty of the arteries and the veins, and the influ
Knight's Mechanical Encyclopedia (ed. Knight), M. (search)
es records the fact as sufficiently worthy of mention, and it is probable that in the intervening 300 years they had acquired considerable notoriety in the cure of chronic complaints. See Dr. Thompson's Researches in Palestine. Berzelius, the Swedish chemist, a yearly visitor to the Carlsbad waters, is believed to have been the first to make a successful imitation of mineral water. Struve did the same shortly afterward. The first manufactory was established by Goser, an apothecary at Geneva, about 1790, who sold annually 40,000 bottles of Seltzer. Struve soon decided to devote himself to this speciality, and obtained patents in the chief European countries. In the modern process of manufacturing mineral waters, carbonic-acid water is first made. The various chemicals are dissolved in a certain order, and some notable ingredients are produced by resulting chemical combinations, as, for instance, in a water containing chloride of sodium and carbonate of baryta, the latter wo
Knight's Mechanical Encyclopedia (ed. Knight), U. (search)
Injection-valve.Valve-coupling. Internal safety valve.Valve-file. Key-valve.Valve-gear. Kingston's valve.Valve-motion. Lever-valve.Water-check. Lock — up safety-valve.Water-closet valve. Long-slide valve.Water-gate. Main check valve.Wicket. Measuring-faucet. The heart is constructed upon the principles of hydraulics, and is furnished with a valve. Harvey deduced the circulation of the blood from Aquapendente's discovery of the valves in the veins. Servetus, who was burnt at Geneva, 1553, was engaged in the search, and came near anticipating the theory which Harvey completed in the following century. See Pulsometer, page 1825; Sphyg-Mometer, page 2265. Fig. 6893 is a caoutchouc pump-valve, which opens to allow water to pass upward as the bucket descends, and closes as the bucket rises. It may have been suggested by the mitral valve of the heart. Perreaux's pump-bucket valve. Valve–buck′et. （Hydraulics.) A bucket provided with a valve; the bucket or
Knight's Mechanical Encyclopedia (ed. Knight), W. (search)
with two plumettes of lead ; in other words, it was driven by weights. The invention is said to have originated at Nuremberg, 1477; so that watches were formerly playfully called Nuremberg animated eggs. The invention has also been claimed for Geneva. See also horological instruments. For early notices of time-keepers, see clock; clepsydra. The first portable time-indicator was the pocket-dial or the Chinese traveler's companion mounted on the head of a cane, suspended on the breas assorted by gaging into the different sizes known to the trade. Watch-jew′el. A diamond, sapphire, ruby, chrysolite, aqua-marine, or garnet, used for the pivothole of a watch to reduce friction and wear. The invention of Nicolas Facio, of Geneva, about 1700. The list is in the relative order of their hardness. The precious stones are cut into slips by circular saws, and afterward broken into cubes. Then each is turned out in a lathe, fixed in its setting, drilled, and secured in the