41,450 results
1953438 p. illus. 22 cm. Paperback Very good condition
1986214pp VG/none PB Paperback reprint, the first edition was printed in 1979. Editorial printed brown wrappers, in excellent conditions, clean and tight, almost as new. Classic history of automatic control and control engineering covering the early period of its theory and development from 1800 through 1930. With many b/w illustrations and diagrams and extensive bibliography lists at the end of the chapters, the standard work on the subject, in English. No.8 of the IEE Control Engineering series edited by Montgomerie, G A, Nicholson, H and Swanick, B H. The Author was lecturing control engineering at the University of Sheffield.
1972279 pages including index and numerous black and white illustrations. Makes fascinating as well as informative reading for the layman and will undoubtedly be the authoritative work on its subject for students and specialists alike. Begins in 2,800 B.C. Usual library markings. Remains a good working copy. Book
1992A clean, unmarked book with a tight binding. 8 3/4"w x 11 1/4"h. 510 pages.
1960Cambridge, Heffer & Sons, (1960). Small 4to. orig. full cloth. Covers and spine ends with traces of use. Last inner hinge weak. XVI,381 pp. textillustrations.
19608vo., First Edition, with numerous photographs and illustrations in the text, neat contemporary signature on front free endpaper; blue cloth, upper board and backstrip lettered in gilt, a near fine copy in unclipped dustwrapper. SCARCE IN THIS CONDITION.
1963A clean, unmarked book with a tight binding. Volume 2, pages 305 - 536. Black and white illustrations.
1965Oxford, Clarendon Press, (1965). 4to. Orig. full cloth wit dustjacket. Smal tears to jacket. Cold. frontispiece. LV,827 pp., 36 plates, 570 textillustr. a. 8 maps. A stamp to front free endpaper. Clean and fine.
1959In-8, cartonato editoriale, sovracoperta, pp. 401, con tavole in bianco e nero fuori testo. Con lievi fioriture, peraltro ben conservato (slightly foxed, otherwise good condition).
ref. 29183Mt Rainier MD: VITA Publications 1977. Paper bound original stapled pamphlet - 8.5 x 5.5 inches. Illustrated with diagrams. Unpaginated but approximately 16Pp. Tight and unmarked - a very good or better unmarked copy. A hydraulic ram is a simple device. It uses the power from falling water to force a small portion of the water to a height greater than the source. Water can be forced about as far horizontally as you desire but greater distances require larger pipe due to friction. There is no external power needed and the ram has only two working parts. The only maintenance needed is to keep leaves and trash cleaned away from the strainer on the intake and to replace the clack and non-return or delivery valve rubbers if they get worn. Hockey pucks cut to the appropriate size for your project can provide near maintenance-free operation of your pump. The original cost is almost the only cost. Two things are needed to make the ram work: a enough water to run the ram and bb enough height for water to fall through the drive pipe to work the ram. A small amount of water with plenty of fall will pump as much as a greater amount of water with only a little fall. The greater the height to which the water must be raised the less water will be pumped under a given set of circumstances. Water may come from a spring on a hillside of from a river or creek. It must be led into a position from which it can pass through a relatively short supply pipe to the ram at a fairly steep angle about 30 degrees from horizontal is good. Often a catch basin or cistern is used as the source for the drive pipe but an open ditch such as that which supplies a water mill could be used. Be sure to put a strainer on top of the drive pipe to keep trash out of the pipe and ram. The water starts to run down through the drive pipe going faster and faster until it forces the automatic valve or clack to close suddenly. The weight of the moving water suddenly stopped creates very high pressure and forces some of the water past the non-return or delivery valve and into the air chamber compressing the air more and more until the energy of the moving water is spent. This compressed air acts as a spring and forces the water up the delivery pipe to the storage tank in a steady stream. It takes a lot of falling water to pump a little water up a hill. Often about one part in ten is delivered to the storage tank at the top of the delivery pipe but when the excess or spilled water is returned to the source the river or stream then there is zero waste. The snifter hole 'wastes' a bit of water but takes in a bubble of air with each stroke. This is necessary to keep air in the air dome and it must not get plugged or the air dome will get filled with water and the ram will stop. The small ram works best at about 75 to 90 strokes per minute depending on the amount of drive water available. The slower it goes the more water it uses but the more it pumps. Any working fall from 18 inches to 100 feet can be used to work a ram but in general the more working fall you obtain the less the ram will cost and the less drive water it will require to raise a given amount of water. If there is plenty of water a fall of four feet could be made to raise water 800 feet but this would be an expensive installation. this small ram you can make up yourself from pipe fittings and you only have to buy or build the clack and delivery valve assemblies. We welcome all reasonable offers on our books. All books in stock and available for immediate shipment from Winnipeg Manitoba. Mt, Rainier (MD): VITA Publications, 1977 unknown
1978ref. 456Austin TX: University of Texas Press. 2; Barker Texas History Center Series; Ex-Library; Small 4to 9" - 11" tall; 516 pages; Ex-library copy. Mylar Cover on dust jacket. Dust Jacket shows some wear of usage. Book Tight. Text is clean no markings seen . Good in Good Dust Jacket. Hardcover. 0292740077 . 1978. University of Texas Press hardcover
[2], 28pp., orig. printed wrappers. Copac listing a single copy at Cambridge University Library.
1995Almost new condition of cover and contents. Page block is bright and tight. Include a large number of colour illustrations, b/w photographs, line drawings and diagrams. Clean Copy
1900ref. 27067Cincinnati: The Ohio Valley Company. Very Good with no dust jacket. 1900. First Edition; Later Printing. Hardcover. Rear endpaper is torn along with the facing page. Light wear to the covers. ; Small 4to 9" - 11" tall; 803 pages . The Ohio Valley Company hardcover
ref. 0331023237.Ghardcover. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book. hardcover
ref. 1334650705.Gpaperback. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book. paperback
ref. 0332788024.Ghardcover. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book. hardcover
1972Cover a little faded and worn but otherwise undamaged, all contents clean, tight and bright. A4 format. Used
1893ref. 31135London, Whittaker & Co., 1893. Orig. full cloth. Back faded and slightly soiled. XVIII,508 pp., many textillustrations and diagrams.
217pp VG/none Original red cloth with gilt lettering on front board and spine, in excellent conditions throughout, almost as new. Scarce autobiography of Dr Ronold W P King covering his early life and his career in teaching and research at Harvard University. Dr King is world-famous for his studies on antennas: his book The Theory of Linear Antennas published in 1956 is still considered one of the fundamental works on the subject.
1999ref. 1316373PN. New. 1999. Soft Cover. Date is original print. This is a reprint edition . PN paperback
1963ref. 4637z1963. Hardcover. Good. Hardcover/pub.1963/Gd. condition/334 pages - Reactor Physics. HA64637z hardcover
1902ref. 11808Troy NY: W. & L. E. Gurley. Very Good with no dust jacket. 1902f. First Edition. Hardcover. The front cover is faded. ; 16mo 6" - 7" tall; 446 pages . W. & L. E. Gurley hardcover
1842ref. 6825548Scott Webster and Geary 1842. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. With usual stamps and markings In poor condition suitable as a reading copy. No dust jacket. Clothbound spine missing highly decorated gold stamped front and back cover gold page ends foxing but clear of other marks. Please note the Image in this listing is a stock photo and may not match the covers of the actual item350grams ISBN: Scott, Webster and Geary hardcover
1893ref. 16379London: Whittaker and Co. Good. 1893. First Edition. Hardcover. Covers are soiled and rubbed at the corners & spine ends. Rear inner hinge is cracked. ; Small 8vo 7½" - 8" tall; 508 pages . Whittaker and Co. hardcover