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| 1. |
Are You Equipped for Work Area Protection? |
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Opflow,
Volume 6,
Issue 3,
1980,
Page 1-3
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PDF (1480KB)
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摘要:
This article provides details on determining when to use a flagman for safety in work areas, and what procedures should be followed by this person. Directions for closing two‐ or four‐lane streets and intersections are given.
ISSN:0149-8029
DOI:10.1002/j.1551-8701.1980.tb00625.x
出版商:Wiley
年代:1980
数据来源: WILEY
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| 2. |
Gimmicks and Gadgets |
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Opflow,
Volume 6,
Issue 3,
1980,
Page 6-6
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PDF (707KB)
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摘要:
This month's feature consists of two tools. A valve box cleaner, constructed from a shovel cut in half and bent to fit inside a valve box, is used to remove dirt, gravel, sand, and small rocks. A hud valve wrench, made from a hud wrench fitted with a square fire hydrant coupling, allows the user to reach any depth of buried valve in the entire Kennewick, Washington system for which it was designed.
ISSN:0149-8029
DOI:10.1002/j.1551-8701.1980.tb00627.x
出版商:Wiley
年代:1980
数据来源: WILEY
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| 3. |
“Help” Responses Received |
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Opflow,
Volume 6,
Issue 3,
1980,
Page 7-7
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PDF (870KB)
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摘要:
In the November 1979 issue, Opflow solicited assistance for an operator who was having trouble tapping into 10‐ and 12‐in. PVC pipe under pressure without splitting the pipe. Suggestions received include consulting a booklet which deals specifically with this problem, using a deep shell cutter with a combination drilling and tapping tool, and using particular brands of shell cutters.
ISSN:0149-8029
DOI:10.1002/j.1551-8701.1980.tb00630.x
出版商:Wiley
年代:1980
数据来源: WILEY
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