The National Geographic Magazine, Volume 113National Geographic Society, 1958 - Geography Indexes kept up to date with supplements. |
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Page 9
... poles . During the loading of the poles , particularly in the earlier tests , the poles moved at the groundline . An approximation of the amount of movement of the pole in the ground may be noted in table 3 and figure 7 by comparing the ...
... poles . During the loading of the poles , particularly in the earlier tests , the poles moved at the groundline . An approximation of the amount of movement of the pole in the ground may be noted in table 3 and figure 7 by comparing the ...
Page 35
... POLE 24 " PIN DOOR EAVE LINES 5'8 " EAVE POLE 10 ' 3 " CENTER POLES SIDE EAVE LINE HAND WORKED RING CORNER EAVE LINES 5'8 " EAVE POLF 17 ' RIDGE POLE 3. PREPARING TO RAISE TENT ROOF 4. RAISING TENT ROOF SPINDLE THROUGH RING RIDGE POLE ...
... POLE 24 " PIN DOOR EAVE LINES 5'8 " EAVE POLE 10 ' 3 " CENTER POLES SIDE EAVE LINE HAND WORKED RING CORNER EAVE LINES 5'8 " EAVE POLF 17 ' RIDGE POLE 3. PREPARING TO RAISE TENT ROOF 4. RAISING TENT ROOF SPINDLE THROUGH RING RIDGE POLE ...
Page 78
... pole diameter D is = 292.9 mm. Diameter at 1.5m from butt (assuming taper 11mm/m) = 296.2mm. This is less than the specified minimum diameter of 305 mm for a stout pole within BS 1990, and hence a stout grade pole is okay. At an angle ...
... pole diameter D is = 292.9 mm. Diameter at 1.5m from butt (assuming taper 11mm/m) = 296.2mm. This is less than the specified minimum diameter of 305 mm for a stout pole within BS 1990, and hence a stout grade pole is okay. At an angle ...
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