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Knight's Mechanical Encyclopedia (ed. Knight), T. (search)
for gaging the penetration of the tap when the hole is not to pass through the work, and the motion is reversed in the act of drawing back the work. Brown and Sharpe tapping-machine. 2. A machine for tapping water-mains. Tapping-machine. a is the main, against which the device is held by the movable arm b. The drille-bed. Trug. A mortar hod. Tru′ing-tool. A device for truing the face of a grindstone, or any other surface for which it may be adapted. Brown and Sharpe's grindstone truing-tool. Fig. 6682 is a grindstone-truer, for keeping the face in good shape. It works automatically, and while the stone is in use. The botrated by as many as 80 horse-power engines, and one of them has attained a speed of six knots an hour, and has been turned in 1 minute and 19 seconds. Brown and Sharpe's turret-lathe. 3. (Railway.) The elevated central portion of a passenger-car, whose top forms an upper story of the roof, and whose sides are glazed for li
Knight's Mechanical Encyclopedia (ed. Knight), W. (search)
y required position by setscrews, and one or both may be used. For washers which are annular, they are set to the sizes of the inner and outer circles required. For wads which are disks, one alone is revolved around the center-pin. Brown and Sharpe's nut and washer gage. Wash′er-gage. An instrument for measuring diameter and thickness, also holes of nuts and washers. The figures upon one edge are for 16ths and 32ds, and on the other for 10ths and 20ths of inches; also, United Stat. The difference between these and those of the old, or Birmingham, gage is shown in the following table:— weight of wrought-iron, steel, copper, and brass wires and plates. Diameters and Thickness determined by American Gage of Brown, Sharpe, & Co. Weight of Wire per 1,000 lineal Feet.Weight of Plates per square Foot. No. of Gage.Size of each No.Wrought-Iron.Steel.Copper.Brass.Wrought-Iron.Steel.Copper.Brass. Inch.Lbs.Lbs.Lbs.Lbs.Lbs.Lbs.Lbs.Lbs. 0000.46000560.74566.03640.5160
Knight's Mechanical Encyclopedia (ed. Knight), Y. (search)
of the yarn which passes through a reed i, and is then wound upon a reel h in separate hanks, representing the contents of the separate rollers a a. Yarn-me′ter. A counter to show the quantity of yarn each spindle has been making. Brown, Sharpe, & Co.'s yarn-meter indicates the quantity in hanks and decimal parts. They are attached to the front side of one end of the head-rail of a slubber, fly-frame, spinningframe, or mule. A worm is attached to the end of the front roll, which gearsminate length, say 80 times the circumference of the reel, equal to 120 yards (80 threads of 1 1/2 yards each, or 1 7 of a hank), are then weighed. Yarn-scale. One for showing the weight of a certain length of yarn, say a hank. Brown and Sharpe's shows the weights of all numbers in troy grains. Yarn-spool′er. A winding-machine for filling spools or bobbins for shuttles or otherwise. The yarn is on a beam, which has a brake to determine the tension. The yarn is led between rol