 | Ira Elbert Bennett - 1915 - 752 pages
...water from the upper valves will be admitted to the lock chambers, are operated by 116 40 HP motors. The upper end of the valve stem is carried by a cross-head...two vertical revolving nonrising screws driven by a reducing gear from a horizontal shaft direct coupled to the driving motor. By means of the solenoid... | |
 | 1910 - 630 pages
...illustrated in the last annual report. The mechanism is shown on drawings Nos. 6425, 6426, and 6427. (Pls. 78, 79, and 80.) It consists especially of a single...interruption of the line current. The crosshead is guided in its vertical travel by rollers running on rails embedded in the concrete. Each revolving screw is... | |
 | 1910 - 622 pages
...themselves were illustrated in the last annual report. The mechanism is shown on drawings Nos. 6425, 6426, and 6427. (Pis. 78, 79, and 80.) It consists especially...revolving parts may be brought to rest immediately after interniption of the line current. The crosshead is guided m its vertical travel by rollers running... | |
 | 1913 - 716 pages
...on the main culverts is controlled by a valve which regulates the emptying and filling of the locks. The upper end of the valve stem is carried by a crosshead,...two vertical, revolving, nonrising screws, driven by a 50 horse-power, 3 phase, 25 cycle, 220 volt induction motor, through a friction clutch and reducing... | |
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Nos. 6425, 6426, and 6427. (Pls. 78, 79, and 80.) It consists especially of a single rising valve stem with its lower end connected to the valve by two pins at right angles to each other, allowing for slight movements of the valve. This stem passes vertically... 