Ashton Valve pop safety valve 1871

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Rick A
Posts: 252
Joined: Fri Apr 12, 2019 10:59 pm

Re: Ashton Valve pop safety valve 1871

Post by Rick A »

Some patents relating to Valves produced by the company.
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Rick A
Posts: 252
Joined: Fri Apr 12, 2019 10:59 pm

Re: Ashton Valve pop safety valve 1871

Post by Rick A »

More patents.
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Rick A
Posts: 252
Joined: Fri Apr 12, 2019 10:59 pm

Re: Ashton Valve pop safety valve 1871

Post by Rick A »

Patents #3
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Rick A
Posts: 252
Joined: Fri Apr 12, 2019 10:59 pm

Re: Ashton Valve pop safety valve 1871

Post by Rick A »

Patents #4
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Rick A
Posts: 252
Joined: Fri Apr 12, 2019 10:59 pm

Re: Ashton Valve pop safety valve 1871

Post by Rick A »

Patents #5
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Rick A
Posts: 252
Joined: Fri Apr 12, 2019 10:59 pm

Re: Ashton Valve pop safety valve 1871

Post by Rick A »

A link to early safety valve patents. Google patents is a great reference.

https://www.google.com/search?tbm=pts&e ... 20yzLoJFww

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