Mechanics' magazine and register of inventions and improvements . curve. Cylinder—A long round body ; a roller. Dam—^The bank or wall which pens backthe water in a mill-head. Data—Facts from which we may deduce re-sults. Decimeter—To measure by tenths. Dent—The wire staple which constitutes thetooth of a card. Diameter—The line which passes through thecentre of a circle. Devil—A machine for dividing rags or cot-ton in the first process of the manufactureof paper or cotton. Die—Pieces of steel for cutting screws,having the threads countersunk on them :a stamp. Doffer—That part of a carding mach
Mechanics' magazine and register of inventions and improvements . curve. Cylinder—A long round body ; a roller. Dam—^The bank or wall which pens backthe water in a mill-head. Data—Facts from which we may deduce re-sults. Decimeter—To measure by tenths. Dent—The wire staple which constitutes thetooth of a card. Diameter—The line which passes through thecentre of a circle. Devil—A machine for dividing rags or cot-ton in the first process of the manufactureof paper or cotton. Die—Pieces of steel for cutting screws,having the threads countersunk on them :a stamp. Doffer—That part of a carding machinewhich takes the cotton from the cylinder. Doffing-plate—The plate which receives thecotton from the dotfer. Dog—A piece in small machiner)^ whichacts as a pall. Draw-plate—A steel plate, having a grada-tion of conical holes, through which me-tals are drawn to be reduced and elon*gated. Drench—To wet or inundate. Drill-bow—A small bow moved by hand toimpart motion to a drill. Drxim—A hollow cylinder. Ductile—Malleable and Improved Cellar Steps. ByR. Gooch. [Fromthe London Mechanics Magazine.]Sir,—The prefixed is a rough sketch of amachine, which was invented by me a fewyears ago, for the purpose of raising casksout of cellars. A model of it was sent tothe Mechanics Institution of this city, andpurchased by it—at a price, however, which Wonders of Philosophy.—Horizontal Wind-Mill.—Invaluable Invention. S4 rewarded me very inadequately for thetrouble the invention had cost me. The ad-vantage of this machine over those in com-mon use is, that provided a rope shouldbreak or slip by accident, no injury can besustained, either to the goods or to the per-son employed, which now too often occurs. AAA is a strong wooden frame, of suchsize and length as may suit the work orplace it is intended for. The inside of theframe is rabbited, and covered with an ironplate CC, which plate is notched, and actsas ratches on each side of the machine. O
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