. American engineer and railroad journal . -■ W Fig. i. Fig. 4 American Balance Valve Company. In Fig. 1 a form of packingis shown from which the idea was developed. In it the partsare lettered for reference. Fig. 2 is the application for theChicago & Northwestern Railway. (A valve of this form at-tracted a great deal of attention at the Master Mechanics Asso-ciation convention in Saratoga last month.) Fig. 3 is an ar-rangement of the same elements for the Brooks LocomotiveWorks, and Fig. 4 is another form of Fig. 1, to meet the viewsof those who favor narrow rings. The Idea in all of these is


. American engineer and railroad journal . -■ W Fig. i. Fig. 4 American Balance Valve Company. In Fig. 1 a form of packingis shown from which the idea was developed. In it the partsare lettered for reference. Fig. 2 is the application for theChicago & Northwestern Railway. (A valve of this form at-tracted a great deal of attention at the Master Mechanics Asso-ciation convention in Saratoga last month.) Fig. 3 is an ar-rangement of the same elements for the Brooks LocomotiveWorks, and Fig. 4 is another form of Fig. 1, to meet the viewsof those who favor narrow rings. The Idea in all of these isthat of the beveled ring, which has been used for a number ofyears in the disc balance of this company, but employed in thiscase to produce wedging action on the packing rings and to secure steam-tight joints to keep the steam from getting underthe packing rings. In Fig. 1, A is a wedge ring under which boiler steam is ad-mitted through the ports, G. This ring has ground joints withthe solid rings, C, which may be made with or without


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering