This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1806 Excerpt: ... from the river to a reservoir, at the elevation of 160 English feet above the level of the Seine; then to a second reservoir, 346 feet higher; and from the latter to the summit of a tower rather more than 533 feet above the river. The breadth of the machine comprehends 14 gets, or watercourses, shut by sluices or ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1806 Excerpt: ... from the river to a reservoir, at the elevation of 160 English feet above the level of the Seine; then to a second reservoir, 346 feet higher; and from the latter to the summit of a tower rather more than 533 feet above the river. The breadth of the machine comprehends 14 gets, or watercourses, shut by sluices or penstocks, which are raised and de pressed by racks; and in each of these gets is placed a wheel: these wheels are disposed on three lines; in the first, on the fide which points up the stream there are seven, six in the second, and only one in the third. The ends of the axle of each wheel go beyond their bearing pieces, and are bent into a crank, which makes a lever of two feet; and it is to be observed, that the crank which is towards the mountain fucks and lifts up the water of the river, to drive it into the first cistern, and the other crank gives motion to the balances. Six of the wheels on the first line give motion by one of their cranks to an engine of eight pumps, without reckoning the feeder: these engines are compounded of a regulator, at each end of which hangs a square piece os wood, that carries and directs four pistons; the regulator is put in motion by two beams or leaders, one of which lying along answers to the crank of the wheel and a vertical regulator, and the other hanging down is united to the fame regulator and to the balance. Of the six wheels we have mentioned, there are five which by their other crank give motion to the pumps that work in the cistern of the first lift, by means of horizontal levers and chains that communicate the motion. The sixth wheel, which is the first towards the dam, moves a long chain that works the pumps of one of the wells of the upper cistern, which is called the cistern of the great chevalets...
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Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
Publisher:
Printed for Geo. B. Whittaker, (and others)
Published:
1826
Language:
English
Alibris ID:
14099037298
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Seller's Description:
Good. Fourth edition, corrected and improved. Issued in three volumes: two of text and one of plates this is the Plate Volume Only. Full contemporary red crushed calf, ruled and titled in gilt. 63 plates, mostly folding. Darkening to the boards, considerable rubbing to the joints and foxing, mostly to the margins of the plates, still a sound, good copy. Mathematician Joseph Ray's copy, with his ownership Signature: "Joseph Ray, M.D. Woodward High School, Cincinnati, [date indecipherable]. 2 volumes & plates, $15.25." Ray was a professor of mathematics and wrote several books on the subject, beginning in 1834 with *An Introduction to Ray's Eclectic Arithmetic, * the first of a series of six textbooks which became the most popular and widely used American mathematics textbooks of the 19th Century. They also formed the basis for *Ray's Mathematical Series* of textbooks. As late as 1913, annual sales exceeded a quarter of a million copies a year, and total sales of his arithmetic books alone are estimated at 120 million copies. The success of Ray's *Arithmetic* series prompted his publisher to seek an author for a corresponding set of readers. They chose William Holmes McGuffey, who joined Ray on the faculty of Woodward College, and where he wrote the *McGuffey Readers* which surpassed even Ray's *Arithmetics* to become the most popular textbooks ever written.
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