[PRCo] Re: Wheels__&__Shoes

[rogertrolley.1 at juno.com]

Boston used carbon insert shoes on all their cars after about 1940 or before. Why Carbon ? You do not need wire greaser cars. The carbon shoes do the lubricating supposedly. They did wear out faster than the brass ones used elsewhere but before the carbon shoes,all cars had wheels. The largest wheel I ever saw were the one on TCRT on Mineappolis ,when Seasore recieved their Gate Car from them in 1950's. The thing was 9 or 10 inches in diameter. These of course didn't wear out as fast as the smaller ones did. Never saw another system that used such large ones. Maybe somebody knows of one ?   cheers rogertrolley