 | Manfred Powis Bale - 1880 - 132 halaman
...surface blow-cocks are used, they should be often opened for a few moments at a time. 6. Filling rip the Boiler. — After blowing down, allow the boiler...boiler, either from leaky joints or other causes. 8. Removing Deposit and Sediment. — In tubular boilers the hand-holes should be often opened, and... | |
 | Manfred Powis Bale - 1880 - 122 halaman
...blow-cocks are used, they should be often opened for a few moments at a time. 6. Filling up theBoikr. — After blowing down, allow the boiler to become cool,...boiler, either from leaky joints or other causes. 8. Removing Deposit and Sediment. — In tubular boilers the hand-holes should be often opened, and... | |
 | Ohio. Department of Inspection of Workshops, Factories and Public Buildings - 1887 - 314 halaman
...often for a few moments at a time. A ft er blowing down, allow the boiler to become cool before filling again. Cold water pumped into hot boilers is very injurious from sudden contraction. Care should be taken that no water comes in contact with the exterior of the boiler, either from leaky... | |
 | Thomas J. Foster - 1891 - 444 halaman
...serious weaknesses, and sometimes explosions are the result of such an action. 18. Dampness.— Take care that no water comes in contact with the exterior of the boiler from any canse, as it tends to corrode and weaken the boiler. Beware of all dampness in seatings or... | |
 | 1893 - 528 halaman
...again. Cold water, pmaped Into hot boilers Is very Injurious from sudden contraction. 7. EXTERIOR OP BOILER.— Care should be taken that no water comes In contact with the exterior of the boUer, either from leaky Joints or other causes. 8. REMOVING DEPOSIT AND SEDIMENT.— In tubular boilers,... | |
 | Robert Henry Thurston - 1896 - 1000 halaman
...weaknesses and sometimes explosions, are the result of such an action. 18. Dampness. — Take care that no water comes in contact with the exterior of the boiler from any cause, as it tends to corrode and weaken the boiler. Beware of all dampness in seatings or... | |
 | International Correspondence Schools - 1899 - 678 halaman
...— All heating surfaces should be kept free from soot and dirt. Tubes should be often cleaned. 14. Exterior of Boiler. — Care should be taken that...exterior of the boiler, either from leaky joints or other sources. Avoid dampness in the setting or in the covering of the boiler. Dampness leads to external... | |
 | International Correspondence Schools - 1900 - 614 halaman
...All heating surfaces should be kept free from soot and dirt. Tubes should be often cleaned out. 11. Exterior of Boiler. — Care should be taken that...exterior of the boiler, either from leaky joints or other sources. Avoid dampness in the setting or in the covering of the boiler. Dampness leads to external... | |
 | 1902 - 502 halaman
...— All heating surfaces should be kept free from soot and dirt. Tubes should be cleaned often. 14. Exterior of Boiler. — Care should be taken that...exterior of the boiler, either from leaky joints or other sources. Avoid dampness in the setting or in the covering of the boiler. Dampness leads to external... | |
 | International Correspondence Schools - 1902 - 714 halaman
...All heating surfaces should be kept free from soot and dirt. Tubes should be often cleaned out. 11. Exterior of Boiler. — Care should be taken that...exterior of the boiler, either from leaky joints or other sources. Avoid dampness in the setting or in the covering of the boiler. Dampness leads to external... | |
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Cold water pumped into hot boilers is very injurious from sudden contraction. 7. Exterior of Boiler. — Care should be taken that no water comes in contact with the exterior of the boiler, either from leaky joints or other causes. 
