| Trade associations - 1874 - 546 pages
...action. Two steam pumps are placed side by side, and so combined as to act reciprocally upon the steam valves of each other. The one piston acts to give...and waits for its valve to be acted upon before it renews its motion. This pause allows all the water valves to seat quietly, and removes even'thing like... | |
| Alexander Lyman Holley - Iron industry and trade - 1881 - 26 pages
...follows : Two steam pumps are placed side by side, and so combined as to act reciprocally on the steam valves of each other. The one piston acts to give...its valve to be acted upon before it can renew its motion. This pause allows all the valves to seat quietly, and prevents concussion. Thus the delivery... | |
| John Michels (Journalist) - Science - 1889 - 614 pages
...are placed side by side, and so combined as to act reciprocally upon the steam-valves of each other. One piston acts to give steam to the other, after...its valve to be acted upon before it can renew its motion. This pause allows all the water-valves to seat quietly, and removes every thing like harshness... | |
| Robert Grimshaw - Pumping machinery - 1886 - 280 pages
...pump. Two steam pumps are placed side by side, and so combined as to act reciprocally upon the steam valves of each other. The one piston acts to give...its valve to be acted upon before it can renew its motion. Q. How would you proceed to set the valves of a Worthington duplex pump ? A. To set the steam... | |
| Daniel Kinnear Clark - Steam-boilers - 1890 - 428 pages
...to act reciprocally on the steam -valves of each other. By the action of one piston, steam is given to the other, after which it finishes its own stroke, and waits for its valve to be acted on and shifted before it can renew its motion. During this short pause the water-valves fall to their... | |
| Cornelius McLeod Percy - Coal mines and mining - 1892 - 518 pages
...noise or percussive action. Two steam pumps are placed side by side, and act reciprocally on the steam valves of each other. The one piston acts to give...its valve to be acted upon before it can renew its motion. The pause allows all the water valves to seat quickly, and removes all harshness of motion.... | |
| Philip John Davies - Plumbing - 1896 - 488 pages
...placed side by side forming one machine, and so combined as to act reciprocally upon the steam valvej of each other. The one piston acts to give steam to...its valve to be acted upon before it can renew its motion. This pause allows all the water valves to seat quietly, and removes everything like harshness... | |
| Stephen Michell - Mine drainage - 1899 - 426 pages
...and so combined as to act reciprocally upon 1 The Worthington Pumping Engine, p. 54. the steam-valves of each other. The one piston acts to give steam to...its valve to be acted upon before it can renew its motion. This pause allows all the water-valves to seat quietly, and removes everything like harshness... | |
| Alexander James Wallis-Tayler - Poisonous plants - 1900 - 496 pages
...piston acting to give steam to the other, and subsequently terminating its own stroke, and waiting for its valve to be acted upon before it can renew its own movement, which momentary pause is found in practice to admit of all the water valves seating themselves... | |
| William Rogers - 1905 - 432 pages
...characteristic of the Worthington duplex pump. Two steam pumps are placed side by side and so combined that one piston acts to give steam to the other, after...own stroke and waits for its valve to be acted upon by the other pump before it can renew its motion. This pause allows the water valves to seat quietly,... | |
| |