dead-end against

English translation: place the tip of the gun in contact with the body, thereby \"dead-ending\" or blocking it

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
English term or phrase:dead-end against
Selected answer:place the tip of the gun in contact with the body, thereby \"dead-ending\" or blocking it
Entered by: Monica Colangelo

03:35 Oct 22, 2017
English language (monolingual) [PRO]
Tech/Engineering - Safety
English term or phrase: dead-end against
This usage of dead end as a verb only appears in an OSHA standard (whose number I could not find) that reads "Workers should never 'dead-end' a pneumatic gun against themselves or anyone else".

Thanks for your help. BTW, it does not just mean "point to", as it is used in the previous line.
Monica Colangelo
Argentina
Local time: 02:12
place the tip of the gun in contact with the body, thereby "dead-ending" or blocking it
Explanation:
Taña has already quoted a definition of "dead-end" in this context: blocking the tip of the gun. But it might help to have an explanation of the exact nature of this "dead-ending" and the reason for not doing it.

To dead-end a pneumatic gun is to block the tip. To dead-end it against the user or someone else is to place the tip in contact with the person's body, which of course has the effect of blocking it. This doesn't refer to the danger of firing a nail into the person by mistake from a pneumatic nail gun. It doesn't refer to nail guns, but to any pneumatic gun. It's because of the danger of air penetrating the body:

"Compressed air is extremely forceful, with pressures used in the workplace typically ranging from 80 to 120 pounds per square inch (psi). The primary concern associated with using air at this pressure is the potential to “dead-end” or block the tip of an air gun. If the gun is “dead-ended” against the skin, compressed air can enter the body through small cuts or punctures. Results can range from soft tissue damage to an embolism (air bubble in the bloodstream). Compressed air can also rupture internal organs if introduced into a body cavity, such as a nostril or ear."
https://ehs.psu.edu/sites/ehs/files/compressed_airgun_inform...

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Note added at 1 day2 hrs (2017-10-23 05:48:56 GMT)
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Hi Monica
No problem about closing the question, but I'm sorry you didn't receive a notification; clearly the system failed there. I just hope the information reached you in time to be useful.

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Note added at 5 days (2017-10-27 08:30:30 GMT) Post-grading
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Thanks, Monica. I think that people like you who have helped so many others are entitled to ask a question or two when working against the clock! I know just what you mean; given time you can find the answer yourself, but sometimes time is what you don't have.
Selected response from:

Charles Davis
Spain
Local time: 06:12
Grading comment
Yes, Charles, thanks. When I told you I wasn't allowed to close it yet I still had a day or so to deliver the project. Maybe I would have found the answer myself if I hadn't been working on these files 15 hours a day, 45 days straight. I hate to bother colleagues with questions. As a matter of fact, I've only made 120 in 16 years, over half of which were for a Spanish into English project... with loads of Catalonian words and phrases!
4 KudoZ points were awarded for this answer



SUMMARY OF ALL EXPLANATIONS PROVIDED
4 +3place the tip of the gun in contact with the body, thereby "dead-ending" or blocking it
Charles Davis
Summary of reference entries provided
OSHA 3080, 2002 (Revised)
Taña Dalglish

  

Answers


4 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +3
place the tip of the gun in contact with the body, thereby "dead-ending" or blocking it


Explanation:
Taña has already quoted a definition of "dead-end" in this context: blocking the tip of the gun. But it might help to have an explanation of the exact nature of this "dead-ending" and the reason for not doing it.

To dead-end a pneumatic gun is to block the tip. To dead-end it against the user or someone else is to place the tip in contact with the person's body, which of course has the effect of blocking it. This doesn't refer to the danger of firing a nail into the person by mistake from a pneumatic nail gun. It doesn't refer to nail guns, but to any pneumatic gun. It's because of the danger of air penetrating the body:

"Compressed air is extremely forceful, with pressures used in the workplace typically ranging from 80 to 120 pounds per square inch (psi). The primary concern associated with using air at this pressure is the potential to “dead-end” or block the tip of an air gun. If the gun is “dead-ended” against the skin, compressed air can enter the body through small cuts or punctures. Results can range from soft tissue damage to an embolism (air bubble in the bloodstream). Compressed air can also rupture internal organs if introduced into a body cavity, such as a nostril or ear."
https://ehs.psu.edu/sites/ehs/files/compressed_airgun_inform...

--------------------------------------------------
Note added at 1 day2 hrs (2017-10-23 05:48:56 GMT)
--------------------------------------------------

Hi Monica
No problem about closing the question, but I'm sorry you didn't receive a notification; clearly the system failed there. I just hope the information reached you in time to be useful.

--------------------------------------------------
Note added at 5 days (2017-10-27 08:30:30 GMT) Post-grading
--------------------------------------------------

Thanks, Monica. I think that people like you who have helped so many others are entitled to ask a question or two when working against the clock! I know just what you mean; given time you can find the answer yourself, but sometimes time is what you don't have.

Charles Davis
Spain
Local time: 06:12
Meets criteria
Native speaker of: English
PRO pts in category: 8
Grading comment
Yes, Charles, thanks. When I told you I wasn't allowed to close it yet I still had a day or so to deliver the project. Maybe I would have found the answer myself if I hadn't been working on these files 15 hours a day, 45 days straight. I hate to bother colleagues with questions. As a matter of fact, I've only made 120 in 16 years, over half of which were for a Spanish into English project... with loads of Catalonian words and phrases!
Notes to answerer
Asker: Thank you, Charles. Your explanation is crystal clear.

Asker: I am not allowed to choose your answer until 24 hours have passed. This is insane. I did not even receive a notification of your answer or of Taña's reference information.


Peer comments on this answer (and responses from the answerer)
agree  Tony M
1 hr
  -> Thanks, Tony!

agree  B D Finch
1 day 12 hrs
  -> Thanks!

agree  acetran
3 days 3 hrs
  -> Thanks, acetran!
Login to enter a peer comment (or grade)




Reference comments


34 mins peer agreement (net): +3
Reference: OSHA 3080, 2002 (Revised)

Reference information:
https://www.osha.gov/Publications/osha3080.html
HAND and POWER TOOLS
***OSHA 3080, 2002 (Revised)***



Compressed air guns should never be pointed toward anyone. Workers should never "dead-end" them against themselves or anyone else. A chip guard must be used when compressed air is used for cleaning.


Air Gun Safety - Grainger
https://www.grainger.com/content/qt-pr-air-gun-safety-187
This regulation relates to cleaning objects or items only (i.e., blow drying parts that were pulled out of a plating bath). The phrase “reduce to less than 30 psi” means that the nozzle pressure or opening of a gun, pipe, cleaning lance, etc., used for cleaning purposes will remain at a pressure level below 30 psi in the event the ***tool is dead ended, meaning if the tip of an air gun is blocked.***

Taña Dalglish
Jamaica
Meets criteria
Native speaker of: English
Note to reference poster
Asker: Thanks so much, Taña!


Peer comments on this reference comment (and responses from the reference poster)
agree  Charles Davis
4 hrs
  -> Thank you.
agree  Tony M
5 hrs
  -> Thank you.
agree  acetran
3 days 7 hrs
  -> Thank you acetran.
Login to enter a peer comment (or grade)



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