Catalogue of Structural Steel & Iron for Architects, Engineers & Contractors (1910)
Manitoba Bridge & Iron Works · Manitoba Bridge & Iron Works · leaf 91
eel angle frame all around,usually wider and heavier than frame of door. These illustrations show the style of doors generally used for entranceto cell room or jail building. They can be made heavier or lighter thanshown as occasion demands. Steel plate doors can be fitted withobservation grating…
Metals · Structural Metal Framing · Structural Steel Framing · Metal Fabrication · Metal Stairs · Decorative Metal · Openings · Doors and Frames · Metal Doors · Windows · Metal Windows · Electrical engineering · Lighting · Exterior Lighting · Transportation · Bridges · Jail Equipment
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