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Mechanical Movements; Powers, Devices and Appliances Used in Constructive and Operative Machinery and the Mechanical Arts for the Use of Inventors, Me - Softcover
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1900 edition. Excerpt: ...edge catches 616. HEMISPHERICAL CUP WINDMILL.--The pressure of the wind is greater against the hollow side of the cups than against the spherical side, and the mill rotates. Also used for anemometers. 617. WINDMILL OF OUR GRANDFATHERS, with reefing sails. A few still in use in the United States. 618. WINDMILL AND STEEL TOWER--Mill with a single series of blades. The tail-piece is pivoted to the mill-head, and is swung around to turn the face of the mill from the wind by a governor. 620. ANCIENT WINDMILL and gearing for a twostone flour mill. The windmill is turned toward the wind by a small windmill at right angles on the tail frame, with pinions and shaft connecting with a circular rack around the revolving dome. These mills, used for grinding grain, are the principal source of power in Eastern countries. 622. SMITH'S CIRCULAR BELLOWS, in two parts for uniform blast. 624. THREE-THROW BELLOWS.--Operated by a crank, and gives constant blast without an equalizer. 625. FOOT BELLOWS, for a blowpipe. A spring raises the top of the bellows. The rubber bag is confined to the netting to prevent bursting. The step at the left is for the foot. 626. FAN BLOWER.--An ordinary model as used for blowing forge fires HODGES" COMPOUND BLOWER..--The action is a triple effect. The air is drawn in at each side of the blower and thrown out at increasing pressure successively by the fans on each side, and returned successively by the stationary partitions, with a final discharge at the central annular chamber. 628. "WEDDING " ROTARY BLOWER.--A swinging winged cylinder moving in contact with an outer shell. The wing rides in a slot in the shell with a cavity to give it freedom of motion. The central cylinder is driven by a crank-pin or eccentric...
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- PublisherRarebooksclub.com
- Publication date2012
- ISBN 10 1231985305
- ISBN 13 9781231985304
- BindingPaperback
- Number of pages56
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