The boys' book of engine-building; . s the same thickness as thatof the sheet tin, or brass, you intend to use forthe blades of the turbine wheel. Saw a slot %einch deep in the rim on each line of the paperand be sure to saw each slot straight across therim of the wheel and straight down on the line ofthe paper so that each one will be in a radialline with the center of the wheel. Forming the Blades.—Having sawed the slotsin the wheel, the next thing is to make the the wheel of your gyro is 2% inches in diam-eter, which is the usual size, the circumferenceof the wheel will be about 8
The boys' book of engine-building; . s the same thickness as thatof the sheet tin, or brass, you intend to use forthe blades of the turbine wheel. Saw a slot %einch deep in the rim on each line of the paperand be sure to saw each slot straight across therim of the wheel and straight down on the line ofthe paper so that each one will be in a radialline with the center of the wheel. Forming the Blades.—Having sawed the slotsin the wheel, the next thing is to make the the wheel of your gyro is 2% inches in diam-eter, which is the usual size, the circumferenceof the wheel will be about 8% inches, and sincethe blades are to be set % inch apart there will,of course, be 35 blades. The blades should be made of sheet brass about%o inch thick and all of them must be as nearlyalike as you can make them. Make each blade /v 34 The Boys Book of Engine-Building % inch wide and cut out the corners to form ashank % inch wide and %e inch high as shown inthe drawing at B, Fig. 19. File up all the blades nice and smooth and 1 Kn. Fig. 19. Construction of the Turbine Wheel then bend them into the shape shown at do this get a piece of iron rod /4 inch in diam-eter and 3 or 4 inches long; file out a half-roundgroove in a piece of brass or iron until it fits the Two Simple Steam Turbine Engines 35 % inch iron rod exactly. Lay the grooved formon a solid surface, place a flat blade on it, holdthe iron rod over it, give the latter a sharp tapwith your hammer and the blade will be bent tothe proper shape. Next set the shank of each blade in a slot inthe wheel and it should fit in tight. To hold theblades in place a rim must be fitted around them;this can be made by cutting a strip of brass %inch wide and V2 inch longer than the circum-ference of the wheel with the blades set in it;file down both ends of the strip so that when theyare lapped over the joint will have the same thick-ness as the rest of the ring. To hold the ring in place on the blades whilethey are being soldered
Size: 1661px × 1504px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookpub, booksubjectsteamengines
