. American engineer . frame fastened to a ^ in. plate, 25 by 11H in- wide. This plate is pivoted at H on the endof a bench or table as shown in Fig. 8, and is held in a hori- May, 1912. AMERICAN ENGINEER. 251 zoiital position by a bracket K, which is held on the leg of thetabic so that it may be swung under the fr;nne. Tliree brackets,J, made of IH in. .\ fi in. bar iron are fastened to the bottomplate. A yoke is located directly above the hinge, and has ascrew clamp through its cross arm for holding the mold and .8 14 TJ JL6 I I 1 -^ -/8- ■-*1 Q j^ J —y ^u \- -t—:^ ._i *-H Fig. 7—Fram
. American engineer . frame fastened to a ^ in. plate, 25 by 11H in- wide. This plate is pivoted at H on the endof a bench or table as shown in Fig. 8, and is held in a hori- May, 1912. AMERICAN ENGINEER. 251 zoiital position by a bracket K, which is held on the leg of thetabic so that it may be swung under the fr;nne. Tliree brackets,J, made of IH in. .\ fi in. bar iron are fastened to the bottomplate. A yoke is located directly above the hinge, and has ascrew clamp through its cross arm for holding the mold and .8 14 TJ JL6 I I 1 -^ -/8- ■-*1 Q j^ J —y ^u \- -t—:^ ._i *-H Fig. 7—Frame for Holding Crosstiead Shoe and Mold. crosshead in position in the frame. The cross arm is hinged atL and is locked by a pin at M. A back rest is located at theright hand end of the base of the frame and is supported bythe arm P. It has a small hole Q, ^ in. x •>^ in., which receivesthe projection R on the end of the mold. Two brackets on this end rest which center the shoe on tlie frame Fig. 8—End View of Apparatus Used for Tining Crosshead Shoes. After tlie mold and shoe have been put in place and clampedin position the bracket arm K is swung from underneath theframe and the whole arrangement is allowed to swing into avertical position. The mold is then ready for filling, the open-ing between the shoe and the back stop being covered withasbestos to prevent the metal from escaping. The metal ispoured in at tlie top. the mold and shoe of course having beensufficiently heated; when the metal has cooled the device isswung back on to the table in a horizontal position and thepart B of the mold is slightly drawn out by the lead screw, atthe same time drawing the parts A and C away from the sidesof the shoe, allowing the mold to be removed. HEAVY FREIGHT AND PASSENGERLOGOMOTIVES Another instance of the efforts being made by the railwaysto reduce operating costs by the introduction of locomotives ofgreater capacity and higher efficiency in operation
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
