. Railway master mechanic [microform] . cient structure and doing awaywith the necessity of truss rods. The center sills are 15ins. channels weighing 33 lbs. per foot and 28 ft. 6 from back to back of end sills. The side sills are10 ins. channels weighing 20 lbs. per foot and of thesame length as the side sills. The load is carried prin-cipally by the center sills and the trusses formed by theside framing. The 15 in. channels provide comparativelyheavy members to resist the pulling and buffing strains. |PBS SH IRiilil r Tl mV. 1111 mm Va ■■■ Fig. 7—Steel Framing of Hopper Car. The sil
. Railway master mechanic [microform] . cient structure and doing awaywith the necessity of truss rods. The center sills are 15ins. channels weighing 33 lbs. per foot and 28 ft. 6 from back to back of end sills. The side sills are10 ins. channels weighing 20 lbs. per foot and of thesame length as the side sills. The load is carried prin-cipally by the center sills and the trusses formed by theside framing. The 15 in. channels provide comparativelyheavy members to resist the pulling and buffing strains. |PBS SH IRiilil r Tl mV. 1111 mm Va ■■■ Fig. 7—Steel Framing of Hopper Car. The sills are supported by a built-up body side sill and center sill is secured by an angle ironto a vertical plate which is reinforced at the top by a 3^by 3/^ by y% in. angle iron riveted on each side and atthe bottom by a 5 by 3 by J/z in. angle iron riveted oneach side. The two members on each side of the centersills are tied together by a plate riveted to the lowerangle irons and passing beneath the center casting. A. rlG, 6—Plan and Elevation of Flat Car With. Steel Underframing. August, 1904. RAILWAY MASTER MECHANIC 325
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Keywords: ., bookcentury1800, bookdecade1890, bookidrailwaymaste, bookyear1895
