. The Street railway journal . ELECTRIC LOCOMOTIVE TRUCK NEW PLASTIC RAIL BOND prevents that sudden unpleasant jerk always felt when the ordi-nary truck enters a curve even at a slow speed. The equalizing bar forms a part of the swing motion and isfirmly attached at its center to the spring plank. The links bywhich it is carried are attached to the wheel piece a short distancefrom the centers of the journal boxes. The hanging of these linksis peculiar. It consists of a large bar carrying a spring seat uponthe lower end, while the upper post terminates in a square headunder which a ball or hemi
. The Street railway journal . ELECTRIC LOCOMOTIVE TRUCK NEW PLASTIC RAIL BOND prevents that sudden unpleasant jerk always felt when the ordi-nary truck enters a curve even at a slow speed. The equalizing bar forms a part of the swing motion and isfirmly attached at its center to the spring plank. The links bywhich it is carried are attached to the wheel piece a short distancefrom the centers of the journal boxes. The hanging of these linksis peculiar. It consists of a large bar carrying a spring seat uponthe lower end, while the upper post terminates in a square headunder which a ball or hemisphere is finished forming with ahemispherical cup in the solid frame a ball and socket joint. Thehole beneath is made sufficiently large to allow the bar the re-quired swing. This construction gives an extra long link, as noroom is taken up by the hinge. Upon the spring plank there are two sets of triple springs would have been preferable, but in this casethe contract limited the wheel base to 6 ft., and t
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
