This is the bell hoist cylinder house. Most of the time this equipment is in the hoist house with the skip equipment, however at Bethlehem A-Furnace it is hung on the side of the cast house ventilator housing. Originally I was going to sheath A-Furnace in corrugated material, but after viewing my photos of the actually blast furnace I noticed that the siding and roofing used throughout A-Furnace is just plate steel, welded together. I simulated the welds by scribing styrene sheets. On this structure, the plates scaled out at 42" high.
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2 comments:
Jim,
Correct me if I'm wrong, but it appears that as per M.Rabbtt's plans, you've installed the Z-shapes in this structure are at an angle instead of being "level" or straight.Looks great so far.
Vince Altiere
Hi Vince - Yes I installed the Z-shape on an angle. I think I used the 1/4" size - it was the only one available at the LHS. The width scales out pretty close - just a tad wider than the drawings, however, the flanges on either end are at least twice as wide as Mike's drawings. I briefly considered cutting them down, or going with my original plan of making the z-shapes up myself, but there was enough work cutting and fitting these pieces. I didn't actually mark an angle on the verticals, just marked off even spacing. The Z overlaps slightly the inside of the verticals and you can use this to set the angle - I lined the corner of the downward z flange and center section with my spacing lines on the "outside" of the vertical, but on the inside I tilted the z channel until the top edge of the upward flange just touched the edge of the vertical. Doing this kept the angles consistent without having to draw them. The downside, I found to this method was that the inside corner on the z-channel stuck in past the edge of the vertical - not a problem when looking from outside, but when building the corners, the z-channels will hit, so I had to file a 45 degree bevel on every z-channel end that was connected to a corner vertical. The z-channels are fairly heavy and keep the assembly pretty stiff, but their thickness makes them harder to cut square and keep consistent. - Jim
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