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Was this a spark proof knife ?
Posted: Fri Dec 30, 2022 1:18 am
by bocaj
Ok happy new year . I hope someone can tell me what the purpose of this knife was . It is solid brass blade and handles are copper. No metal spring ! Maybe a miner knife or LP gas mechanic ?? I’m sure someone will start my year off well with an explanation. Thanks.
Re: Was this a spark proof knife ?
Posted: Fri Dec 30, 2022 1:35 am
by New_Windsor_NY
bocaj wrote: ↑Fri Dec 30, 2022 1:18 am
Ok.....
The following is the response that I received from Mr. Bill Schrade
regarding the wire frame pocket knife pictured below.
Maybe it will help answer your question.
bill schrade wrote: ↑Mon May 25, 2020 4:10 pm
Hi guys,
FYI those copper blades were made of Beryllium Copper. It was also used to make the springs in automatic knives. Beryllium dust is a known carcinogen and causes damage to lungs, liver and kidneys. It's safe in solid state. Blades of Beryllium Copper and Brass were used in the blasting field as they didn't spark causing an accidental explosion.
Re: Was this a spark proof knife ?
Posted: Fri Dec 30, 2022 2:53 am
by bocaj
Thanks. Really unique addition
Re: Was this a spark proof knife ?
Posted: Fri Dec 30, 2022 3:07 am
by Oledadsknives
Every knife has a purpose!
Jimbo
Re: Was this a spark proof knife ?
Posted: Fri Dec 30, 2022 5:56 am
by deo-pa
FYI those copper blades were made of Beryllium Copper.
Beryllium copper tubes were used during WW2 to make antennas for fighter planes. After the war the surplus tubes were used to make, among other things, fishing rods. I have a vintage telescoping bait casting rod circa 1950 made of nested BeCu tubes. When collapsed it’s only about a foot long.
Dennis
Re: Was this a spark proof knife ?
Posted: Fri Dec 30, 2022 6:50 am
by Miller Bro's
bocaj wrote: ↑Fri Dec 30, 2022 1:18 am
I hope someone can tell me what the purpose of this knife was . It is solid brass blade and handles are copper. No metal spring ! Maybe a miner knife or LP gas mechanic ?? I’m sure someone will start my year off well with an explanation. Thanks.
I see a manicure knife that was silver plated, one blade and the back spring missing.
Re: Was this a spark proof knife ?
Posted: Fri Dec 30, 2022 2:44 pm
by peanut740
Miller Bro's wrote: ↑Fri Dec 30, 2022 6:50 am
bocaj wrote: ↑Fri Dec 30, 2022 1:18 am
I hope someone can tell me what the purpose of this knife was . It is solid brass blade and handles are copper. No metal spring ! Maybe a miner knife or LP gas mechanic ?? I’m sure someone will start my year off well with an explanation. Thanks.
I see a manicure knife that was silver plated, one blade and the back spring missing.
Re: Was this a spark proof knife ?
Posted: Fri Dec 30, 2022 7:52 pm
by Madmarco
Miller Bro's wrote: ↑Fri Dec 30, 2022 6:50 am
bocaj wrote: ↑Fri Dec 30, 2022 1:18 am
I hope someone can tell me what the purpose of this knife was . It is solid brass blade and handles are copper. No metal spring ! Maybe a miner knife or LP gas mechanic ?? I’m sure someone will start my year off well with an explanation. Thanks.
I see a manicure knife that was silver plated, one blade and the back spring missing.
Yep, I see a gentleman's watch pocket knife!
Re: Was this a spark proof knife ?
Posted: Mon Jan 02, 2023 4:23 pm
by bocaj
Thanks.