. American engineer and railroad journal . ver thebar or stem, making a complete weld in one opera-tion. The dies are then reversed, the crosshead isplaced in position, and the blank end is inserted be-tween the two forks, heated to a welding heat, andthe ram I is forced against the blank block while itis gripped in the jaws, punching a hole and welding completein one operation. With this arrangement a saving of 70 percent, is effected over hand forging and a better forging is obtained. At the left are shownthe dies and plungersfor forming the brakerod for the standardfour-wheel steel passen-g
. American engineer and railroad journal . ver thebar or stem, making a complete weld in one opera-tion. The dies are then reversed, the crosshead isplaced in position, and the blank end is inserted be-tween the two forks, heated to a welding heat, andthe ram I is forced against the blank block while itis gripped in the jaws, punching a hole and welding completein one operation. With this arrangement a saving of 70 percent, is effected over hand forging and a better forging is obtained. At the left are shownthe dies and plungersfor forming the brakerod for the standardfour-wheel steel passen-ger trucks. This con-necting rod is 5 ft. longwith a fork at each is made of 21/4-m-double, extra strongwrought iron pipe. Apiece of round iron isplaced in the end of thepipe, heated to a weld-ing heat, and the squareis formed in the dies,shown above, with ablank plunger, which isnot shown. The open-ing is then sheared outwith the ram J and completed with the former K, whichshapes the end and regulates the width and thickness, form-. fig. 4. 236 AMERICAN ENGINEER AND RAILROAD JOURNAL. ing the completed end as shown. This operation haseffected a saving on the piece work prices of 75 percent, over the hand method of making these rods. At the right in Fig. 5 are shown the dies and themethod of forming the yoke for raising and loweringthe water scoop dippers on tenders. M shows theblank after it has been punched by the ram N andthe dies, shown at the right. O shows the lugs,which are punched from bar stock, cold. Both lugsare placed in the blank M, heated to a welding heatand welded on a hand block in the forging machine,using a plain rectangular ram, which is not will be noted, the attachment of the lugs to thebar is very neatly made. At the left are shown the dies for forming thestandard connection, P, for the expansion sling are formed from 1% by 2%-in. iron. The endis first pinched in the dies preparatory to formingthe round base. The bar is then move
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
