de-energized. Provide a permanent warning sign at each light
indicating "Railcar in Motion."
d.
Miscellaneous: Provide reversing controls, car hooks, snatch
blocks, and anchors.
]2.9.5
Track Hopper
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NOTE: Determine if a track hopper will be required.
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Welded construction of not less than 6 mm 1/4 inch thick [410 stainless
steel] [structurally reinforced steel plate lined with 8 gage (4.18 mm
0.1644 inch) 410 stainless steel] plate not less than 4.50 meters wide and
8.50 meters long 14 feet wide and 28 feet long. Side slopes not less than
60 degrees from horizontal. Interior bolts shall have flat heads. Support
hopper from concrete pit walls as indicated.
2.9.5.1
Track Girders
Two wide flanged beams designed for Cooper's E-[_____] loading with 50
percent impact allowance and sized at W [_____] by [_____]. Provide beams
with cross struts for rigidity and bearing plates for mounting on pit wall
as indicated.
2.9.5.2
Grating
Hopper grating between the rails of [_____] by 10 mm 3/8 inch steel bars
and [_____] by 10 mm 3/8 inch steel cross bars with openings [100] [150] by
[100] [150] mm [4] [6] by [4] [6] inches. Grating outside rails shall have
openings 100 by 100 mm 4 by 4 inches and be constructed of same size steel
bars as specified above. Construct grating in removable panels and support
from concrete pit walls and by steel angle supports resting on track
girders.
2.9.5.3
Cover
Structurally reinforced 5 mm 3/16 inch thick raised pattern floor plate.
Cover for portions of hopper outside rails shall be hinged with edges
turned down. Construct cover between rails in easily removable sections
with handles.
2.9.5.4
Hopper Outlet
Flanged not less than [_____] by [_____] mm inches. Outlet shall contain a
water-collecting reclaim hopper type coal gate not less than [_____] by
[_____] mm inches in size along with a dusttight all metal slip joint,
constructed of not less than 6 mm 1/4 inch thick [4l0 stainless steel]
[structurally reinforced steel plate lined with 8 gage (4.18 mm0.1644 inch)
410 stainless steel] plate. Slip joint shall be of split construction to
allow for disassembly and replacement. Design slip joint to allow for
necessary flexibility to take care of deflection of the hopper outlet due
to varying coal loads and temperature variations without imposing load on
the feeder enclosure. Provide rope packing or other resilient gasket
material to make the slip joint completely dusttight.
SECTION 15501N
Page 74
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