. American engineer . Gang Tool for Cutting Piston Rings. ard boring mill. Similar gang tools have been described inthese columns, but they are somewhat different in detail. DRIVING BOX KINKS Drafts BY . B. LAWSON,in, BaltiiDore & Ohio, Baltimc e, LINERS FOR DRIVING BOX SHOE AND WEDGE FIT. The illustration shows a method of applying brass liners tothe shoe and wedge fits of driving boxes. In the case of oldboxes, M in. is machined off each side, which reduces the dimen- H 4V,. Secfion /<7-/^.Brass Liner for Shoe and Wedge Fit of Dpi ing Box. sion A, the standard distance over
. American engineer . Gang Tool for Cutting Piston Rings. ard boring mill. Similar gang tools have been described inthese columns, but they are somewhat different in detail. DRIVING BOX KINKS Drafts BY . B. LAWSON,in, BaltiiDore & Ohio, Baltimc e, LINERS FOR DRIVING BOX SHOE AND WEDGE FIT. The illustration shows a method of applying brass liners tothe shoe and wedge fits of driving boxes. In the case of oldboxes, M in. is machined off each side, which reduces the dimen- H 4V,. Secfion /<7-/^.Brass Liner for Shoe and Wedge Fit of Dpi ing Box. sion A, the standard distance over the faces, by -34 in. The dove-tailed slots are planed at an angle to the flanges, as shown. Fornew boxes the width of the pattern is made 54 in. less than the 75 n AMERICAN ENGINEER. Vol. 87, No. 2. standard dimension A, and the dovetailed slots are cast in. Inboth cases the brass is cast on the box and is finished to thestandard dimension X. The slots at an angle with the flangesprevent the brass from falling off in case it becomes loose whilebeing machined. When the liner has worn down to about y% the brass is machined off, the slots are cleaned out and anew liner is cast on, which saves the driving from beingscrapped. .APPLYING OIL PIPE FOR DRIVING BOX HUB. A method of applying a hub lubricating pipe to driving have brass hub liners cast on is shown in the drawing. ANo. 20D. wire nail is inserted in a piece of Y^ in. copper pipe,about 2 in. long, and th
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
