d upon massive concrete The triangles are formed of %-inch galvanized pipe, top to bottom, are provided with swinging sashes, with foundations. The bridges consist of two end posts and they serve to hold the copper wire firmly in align- a view to providing ample ventilation. The boiler and a deep… … 1,500 per minute, there is practically no vibration. THE OVERHEAD TROLLEY SYSTEM. Interior View of Power Station ; Showing Three of the Four Turbo-Generators. The construction of the overhead trolley line is un- questionably the most novel feature of the New Haven of the tracks. The wires of the…
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