Browsing named entities in Knight's Mechanical Encyclopedia (ed. Knight). You can also browse the collection for 1693 AD or search for 1693 AD in all documents.

Your search returned 8 results in 5 document sections:

Knight's Mechanical Encyclopedia (ed. Knight), B. (search)
ced by the ancient Greeks and modern Venetians, from the latter of whom we derive the term ballot. A tract, The benefit of the ballot, was published by Marvell in 1693. Ball-peen Ham′mer. A metal-worker's hammer with a spherical peen. Ball-screws. Ball-screw. An implement for extracting bullets from the barrel oilliam of Orange, commanded by Mackay, were defeated by those of James II., under the command of Graham, of Claverhouse, 1689; and also at the battle of Marsaglia, 1693, with great success against the enemy, unprepared for the encounter with so formidable a novelty. The first known bayonet was a kind of long and slender rapieron the lower part of the bayonet, which slipped over the muzzle of the musket and was held in position by a stud on the barrel. The ring-bayonet was introduced in 1693, and the socketbayonet in 1703. This form continued in use for about 150 years, an annular clasp and screw being added about 1842 in the United States service.
Knight's Mechanical Encyclopedia (ed. Knight), C. (search)
r an instrument which should determine longitude within a certain specified degree of accuracy. Sir Isaac Newton suggested the discovery of the longitude by the dial of an accurate time-keeper, and the Parliament of Queen Anne in 1714 passed an act granting £ 10,000 if the method discovered the longitude to a degree of sixty geographical miles, £ 15,000 if to forty miles, £ 20,000 if to thirty miles, to be determined by a voyage from England to some port in America. John Harrison, born in 1693 at Faulby, near Pontefract, in England, undertook the task, and succeeded after repeated attempts, covering the period 1728 – 1761. His first timepiece was made in 1735; the second in 1739; the third in 1749; the fourth in 1755, the year of the great earthquake at Lisbon. In 1758 his instrument was sent in a king's ship to Jamaica, which it reached 5″ slow. On the return to Portsmouth, after a five months absence, it was 1′ 5″ wrong, showing an error of eighteen miles and within the li
Knight's Mechanical Encyclopedia (ed. Knight), L. (search)
irror of incantations. (See mirror.) As in water face answereth to face (Prov. XXVII. 19) was a comparison adapted to the comprehension of a people who had left Egypt and the arts behind them for a period of near 500 years. Mirrors to show the full length of the person were known in Greece and Rome. (Specula totis paria corporibus. — Seneca.) Pliny refers to glass mirrors with a backing of leaf-metal, made at Sidon. Looking-glasses were made in Venice, 1298, and in England at Lambeth, 1693. Bought a looking-glass by the Old Exchange, which costs me pound 5 5 s., — a very fair glass. — Pepys's Diary, 1664. Looking-glasses are silvered, as it is called, by the following process: A sheet of tin-foil is placed very smoothly on a table or stone, and the foil is then flooded with mercury. The glass is laid upon it in such a way as to expel air-bubbles, and heavy weights are laid on the glass. The weights press out the superfluous mercury, and what remains forms an amalgam w<
Knight's Mechanical Encyclopedia (ed. Knight), R. (search)
have been in use as far back as 1498; these, however, do not seem to have been rifled in the proper acceptation of the term, the grooves being straight and intended merely to prevent fouling of the bore and facilitate cleaning. The grooves were made spiral by Koster of Birmingham, England, about 1620. In Berlin is a rifled cannon of 1664, with 13 grooves, and one in Munich of perhaps equal antiquity has 8 grooves. The French Carabineers had rifled arms in 1692. Pere Daniel, who wrote in 1693, mentions rifling the barrels of small-arms, and the practice was apparently well known at that time. Rifles were early used by the American settlers in their conflicts with the Indians; and their first successful employment in civilized warfare is said to have been by the colonists in the war of the Revolution. In the Artillery Museum at Paris is a large assortment of old rifles, comprehending a great diversity of grooves and twists. These exhibit straight grooves and grooves of unifo
Knight's Mechanical Encyclopedia (ed. Knight), T. (search)
doubted not the matter of fact, it being tried in Cromwell's time, but the safety of carrying them in ships.—Pepys's Diary, 1662. In 1688 an immense floating bomb was prepared by the French against the port of Algiers, but was not used. In 1693-95 similar contrivances were used by the English in besieging St. Malo, Dieppe, and Dunkirk, without serious damage. In 1770 the Russians burned the Turkish fleet in the port of Tchesme, and destroyed the fortifications by the shock of the explwith the tail of the helve. The annexed cut is perhaps the earliest illustration of the trip-hammer movement. It is from the Automata of Hero, who lived 150 B. C. The cut is reduced from a curious folio edition of his works published in Paris, 1693; a copy is in the Patent Office library. Trip-hammer. The old French form, the marteau frontal, was lifted by projecting arms fixed in a cam ring and falling through a certain space by its own gravity. The tilt-hammer which succeeded it, i