Page:Willich, A. F. M. - The Domestic Encyclopædia (Vol. 4, 1802).djvu/489

453&#93; WAT WE A [453 It consists of a strong post,firmly i?et in the ground, at a small dis- tance from the well, and which is about S feet above the surface of the eartl), as represented at a. — With the top of this post is con- nefted a laulk, I, that turns on an irpn pin ; — c is a pole, linked to the smaller end of each baulk, and oi) which the pail d is suspended, that swings when empty over the well e. In order to raise water by the apparatus here described, a person lays hold of the pole, which is pulled down till the bucket de- scend into the well for tilling it ; when it is again easily lifted up- wards by a small force at c, being assisted by the weight delineated at/ WATER MILLS.— Although we are, in this country, provided with many contrivances, in which the united powers of water, steam, and mechanical force, have been successfully applied to the purpose of grinding corn into flour, yet we have not, till very lately, met with JLoativg water mills, to be worked by tides, or currents j and which are fartlier designed to put in moti- on, machinery adapted to any kind of manufadure. — Messrs. Pol- freeman, of Long-acre, 5n con- jundion with Messrs, Allen, Fos- SENDEN, and Gray, have purchas- ed the patent-right of Mr. Haw- kins ; and have lately completed one of those mills ; which, by per- mission of the Board of Navigation, is stationed between London and Blackfriars Bridge. Such grant was obtained with the laudable view of reducing, if possible, the price of flour in the metropolis, and fur- nishing a constant supply of that necessary article of subsistence.— The simplicity of this invention renders a long description super- fluous ; as it consists in merely ap- plying the force of two or three water-wheels on each side of a barge, or any other vessel better calculated to contain the interior part of the machinery. Thug, wc venture to pronounce, that the ad- vantages to be derived from this contrivance, must be almost incal- culable, both to the metropolis and the kingdom in general (see Bread, vol. i. p. 333) ; for, independently of the great expence of steam-en- gines, there will necessarily result from it, an annual saving of several thousand chaldrons of coal. WEATHER-GLASS.— In U9 article, we have alluded to a com- Gg3 positio]^