On Saturday, January 19, 2019 at 8:49:13 PM UTC-6, Charles Ellson wrote:
On Sat, 19 Jan 2019 17:53:50 -0800 (PST), [email protected]
wrote:
Has anyone ever used elevators to lift and lower railroad cars or locomotives
from one level to another? One would push a railcar or drive a locomotive >onto a section of track set into the elevator platform, the platform would >move up or down, and the car or locomotive would be rolled off onto a track >at the new level. This would seem to be technically feasible; rail cars and >locomotives are commonly rolled on and off barges, and fifty years ago
the Seabee barge carrier ships had elevators of 2,000 ton capacity to lift >barges into and out of the water.
The rail industry does use devices such as transfer tables to handle
cars and locomotives on sites too small for conventional track and switches >so I wondered if they had ever used elevators for the same purpose. I have >been unable to find anything about this in an Google search. I would >appreciate any information.
http://www.subbrit.org.uk/sb-sites/sites/b/bishopsgate_goods_station/index1.shtml
Thank you for posting this. Seeing from the article that these elevators
were called "track lifts" or "wagon lifts" I was able find several other references to them. This is the most detailed picture, showing a track
lift that moves diagonally:
http://www.norgrove.me.uk/hoist.html
From various references, steam powered track lifts were in use by
the 1850's. Some hydraulic track lifts used an accumulator that was
pressurized by a counterweight, a simple and reliable way to reduce
the power needed and get some energy recovery. Goods warehouses
up to seven stories tall used track lifts, turntables, and powered
capstans to move freight cars around in the upper levels.
Peter Wezeman
anti-social Darwinist
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