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Scientific American, Vol. 69, No. 7 (August 1893) (1893)

leaf 4

An illustration from Scientific American, Vol. 69, No. 7 (August 1893), 1893, leaf 4
g at its lower end a handle and convenient position near the common entrance, and at the upper end a key to turn the key of the gas fixture, Tunnel Ventilation. each employee is provided with a small check having a and comprises a receptacle adapted to hold oil, alcohol, raised type figure on the… … Record Taps. Employe's Check. begins to travel against the moving air, by TIKE RECORDER EMPLOYEE'S GEISSLER'S EXTINGUISHER. LIGHTER which time the air in the train will be more or less fouled by the passengers, and the ing, and the passage of the check through the machine ventilation due to train…

Aluminum · Adapted · Exhibit · Eclipse · Munn · Scientific American · Martin reached · Lateral motion · Horse power · Thrashing machine · Flash light · Powder box · Street car · Total eclipse · Gas engine

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