. Electric railway journal . section c-c. h* Electric Hu. Journal Fig. 5—Brooklyn Power Equipment—Standard TrolleyHarp, Surface Division equipped for double pole operation. One hundred No. nball-bearing stands were placed on 100 new semi-con-vertible cars and 267 were bought for semi-convertiblecars, to displace No. 1, 3-in. spindle stands. During 1906and 1907 the company overhauled and placed new bush-ings on 1275 No. 1, 6-in. spindle stands and discarded 728No. 1, 3-in. spindle stands in HAT. PHOS. BRONZENO. 22 GAGE Fig. 6—Brooklyn Power Equipment—Standard TrolleyHarp for the Elev
. Electric railway journal . section c-c. h* Electric Hu. Journal Fig. 5—Brooklyn Power Equipment—Standard TrolleyHarp, Surface Division equipped for double pole operation. One hundred No. nball-bearing stands were placed on 100 new semi-con-vertible cars and 267 were bought for semi-convertiblecars, to displace No. 1, 3-in. spindle stands. During 1906and 1907 the company overhauled and placed new bush-ings on 1275 No. 1, 6-in. spindle stands and discarded 728No. 1, 3-in. spindle stands in HAT. PHOS. BRONZENO. 22 GAGE Fig. 6—Brooklyn Power Equipment—Standard TrolleyHarp for the Elevated Service TROLLEY HARPS, WHEELS AND SHOES The company is now making its own trolley harps forboth the surface and elevated lines, in accordance with theconstruction details shown in Figs. 5 and 6. The newsurface harp can take either a 4^-in. or 5-in. diameter wheel. The special variations from the older design arethe widening of the top to reduce the wear of the wheel onthe contact shunts and the dishing of the harp as shown insection aa of Fig. 5. This dishing brings the harp soclose to the wheel that there is little danger of the trolleywire cutting in between the wheel and the harp. Theelevated harp was altered by extending the hub and placinglongitudinally the cotter hole, which was formerly trans-verse to the prong of the harp. The latter change preventsthe burning of the cotter pin when the trolley harp andwheel are being replaced on the wire. The trolley wheel question is s
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