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Knight's Mechanical Encyclopedia (ed. Knight), H. (search)
various forms, and if we reject the harrow, if such it be, on the shoulder of Osiris (a), we may suppose it to have been originally a bundle of bushes (b) tied together at the butts, and thus dragged over the field. A log on the brush — as we of the West term it — would flatten as well as weight it, and would add to its efficiency. The bush-harrow is very efficient in covering timothy, clover, etc. Directions for the construction of a harrow are given by an English agricultural writer in 1668, as follows: — Get a pretty big white-thorn tree, and make sure that it be wonderful thick, bushy, and rough grown. In some parts of the north of Europe, the spiky limbs of fir-trees are bound together, and the spurs of the limbs make a reasonably fair substitute for the tines of a harrow. In another form, the bush-harrow g is used under conditions where the teeth of an ordinary harrow would penetrate too far, as in covering grass-seed. The bushes are cut and so disposed in a fram<
Knight's Mechanical Encyclopedia (ed. Knight), R. (search)
a pallet-ring surrounding the scape-wheel c, the pallets a b projecting from its internal periphery and catching alternately, as the pendulum rod d oscillates, upon teeth on opposite sides of the scape-wheel. The pallet-ring is suspended by a piece of watchspring c from a stud. Re-cord′er. 1. (Music.) A musical instrument like a flageolet. Flutes and soft recorders. Milton. To Drumbleby's, and there did talk a great deal about pipes; and did buy a recorder. — Pepys's Diary, 1668. It was used in teaching birds to pipe. 2. A registering apparatus. See register. Recording-gage for gas. Re-cord′ing-gage. Generally speaking, any gage provided with means for leaving a visible record of its indications. That shown (Fig. 4215) is particularly designed for measuring gas pressures. The two cylinders a b connected by a short pipe c are partially filled with water. a contains a float a′ having an upwardly projecting rod d passing through a hole in its cove
Knight's Mechanical Encyclopedia (ed. Knight), S. (search)
check the running of the rope by friction applied to the snubbers. A head-fast. Snub-post for rafts. Snuff′er. A shears for cutting the wicks of candles. A new-fashioned case for a pair of snuffers, which is very pretty —Pepys' Diary, 1668. Snuff-mill. A machine consisting of a circular arrangement of mortars around a central axis, which is occupied by a master wheel giving motion to the rolling pestle in each mortar. The snuff-mills of Holland are on a very large scale, anority of lighting streets is contested between London and Paris. In London it appears that in 1417, Sir Henry Barton, Mayor, ordered Lanterns with lights to be hanged out on the winter evenings, between Hallowtide and Candlemasse. — Stowe. In 1668, householders were reminded that they should hang out lanterns duly at the accustomed time, and in 1690 this order was renewed, and these lights were required to be kept burning from dark till midnight every night between Michaelmas and Lady Day. <
Knight's Mechanical Encyclopedia (ed. Knight), T. (search)
t. What remains, then, is to increase the focal length. Comes Mr. Reeve with a twelve-foot glasse. Up to the top of the house, and then we endeavoured to see the moon, and Saturn, and Jupiter, but the heavens proved cloudy. — Pepys's Diary, 1668. The May-pole which stood close to the site of the church of St. Mary-le-strand was begged in 1717 by Sir Isaac Newton, and removed to Wanstead, where it was used in raising the largest telescope then known. — pennant's London. Telescopes blood was infused into the veins of a maniac, who, shortly after, regained his reason. These successes led to numerous other attempts of the kind, but the general results were such that the practice was forbidden by the Parliament of Paris in 1668. The injections were, in these cases, performed by means of a common syringe. The operation was performed in England at the same period, and was practiced by Lower, 1691. A man that the college [Gresham] have hired for 20s to have some
Knight's Mechanical Encyclopedia (ed. Knight), U. (search)
e and there fell to dancing, having extraordinary musick, two viollins, and a base viollin and theorbo, four hands, the Duke of Buckingham's musick, the best in towne. . . . . I paid the fiddlers £ 3 among the four, and so to bed. — Pepys's Diary, 1668. Syrian Kermanjek, and 'ood. A mention of the fiddle in England occurs in the legendary tale of St. Christopher, written early in the thirteenth century:— The king loved the melody of fithele and of song The instrument was noticed by Ceet on my way, and there called upon one Hayward that makes Virginalls, and there did like of a little espinettes [spinet] and will have him finish them for me; for I had a mind to a small harpsichon, but this takes up less room. — Pepys's Diary, 1668. It is commonly said that the idea of making the hammer of the harpsichord strike the string instead of pulling it gave rise to the piano-force. The substitution of the hammer for the plectrum was, however, made in the virginal a century befo