ntitic American. FEBRUARY 18, 1893.] IOI AN IMPROVED DRILLING MACHINE. The illustration represents a machine more especially the doors, and Fig 4 a partial exterior view. are screwed down to hold and lock the check valves designed for drilling coal, rocks, etc., in which a small In connection with… … per ends of the vertical bolts, as shown in Fig. 2. The FISHBURN’S SAFETY VALVE FOR WATER GAUGES. rack bars may be operated independently, or the pin- ions may be connected to actuate them simultaneously may be obtained of Mr. John A. Cameron, Warden’s on each side of the car, the movement of the…
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