. The Street railway journal . ps by French, foreman of the shops,and others of the shop employees. One of the most interesting ofthe devices is probably that bywhich power is employed to oper-ate a hand driven wheel press. Thepress is of the screw type and wasmade several years ago by a localmachine shop. While the press isrequired occasionally, it is notused to an extent that wouldwarrant the purchase of a powerdriven hydraulic press of the latertype. Formerly when wheels wereremoved or pressed on it it wasnecessary to call all of the shopemployees, and sometimes severaltrack men, to wo
. The Street railway journal . ps by French, foreman of the shops,and others of the shop employees. One of the most interesting ofthe devices is probably that bywhich power is employed to oper-ate a hand driven wheel press. Thepress is of the screw type and wasmade several years ago by a localmachine shop. While the press isrequired occasionally, it is notused to an extent that wouldwarrant the purchase of a powerdriven hydraulic press of the latertype. Formerly when wheels wereremoved or pressed on it it wasnecessary to call all of the shopemployees, and sometimes severaltrack men, to work at the avoid this inconveniencethe apparatus shown in Fig. armature bearings, are made in several sizes. The methodof clamping the half shells can be seen in the shell is placed on the half mandrel, the lugs are placedin the oil ways and the cap is then placed over the bearing is raised a sufficient amount above the lower blockto allow the proper amount of metal to flow over the end and. FIG. 2.—DEVICE FOR BABBITTING BEARINGS I was devised. A rope attached to the press lever passes up over a pulleynear the roof and then down and around the drum drum is keyed to a short shaft, the bearing on one endof which has a vertical motion of a few inches. Pressing down • ^ ^ -^ -: -■■ : \ \ M-V^l^^^H 1 L n \ \ i 1 / i 1 ;.■ ^ : 1 k-% M Sr\ ^ ■ da %^M : : ■•■\^*\. / X- !^w^ f|^i<%2*f^ ■ / 1 ^:MX^^^^^ ^ •sssBS g{ FIG. L—DEVICE FOR APPLYING POWER TO A HAND-OPERATED WHEEL PRESS the lever shown pulls this end of the shaft down and the beltis tightened on the driving pulley and the lever of the wheelpress is pulled up. Releasing the operating lever allows thewheel press lever to fall by its own weight. The device, whilerather crude, results in considerable saving of time and devices for babbitting bearings are shown in Fig. for half shells, as well as those for commutator end the whole is then clamp
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
