P&M Mfg. Company - ****** extractor
- Thread starter yatg
- Start date
four.cycle
Well-known member
I got nothin'.
P & M / P & M Mfg. Co., Los Angeles CA (?) / patent 1918522 Jul 18 1933 Hubert R. Crane / pipe expanding mandrel /
interestingly, Mr. Crane assigned one sixth to Earl and one sixth to Harry. Perhaps a partnership?
It's now 14:33 PST, which means I have exactly 120 minutes before sundown, and 150 minutes until they lock the gates down at the Park,
which means I dare not venture down the "P & M" rabbit hole at this time.
Run a Google search on each of those names - in quotation marks - like this: "Orin J Buckley" Los Angeles
(with just the name in quotation marks.) (try that first.)
P & M / P & M Mfg. Co., Los Angeles CA (?) / patent 1918522 Jul 18 1933 Hubert R. Crane / pipe expanding mandrel /
interestingly, Mr. Crane assigned one sixth to Earl and one sixth to Harry. Perhaps a partnership?
It's now 14:33 PST, which means I have exactly 120 minutes before sundown, and 150 minutes until they lock the gates down at the Park,
which means I dare not venture down the "P & M" rabbit hole at this time.
Run a Google search on each of those names - in quotation marks - like this: "Orin J Buckley" Los Angeles
(with just the name in quotation marks.) (try that first.)
four.cycle
Well-known member
following up on this one.....
I found nothing on "P & M" (which is no surprise, as trying to find information using Google using only two letters of the alphabet is a fool's errand.)
What I did find was that Hubert R. Crane was issued a number of patents, all of which relate to pipe.
Your "expanding mandrel" is a device to expand the end of a pipe. (see swaging)
As an odd coincidence, there used to be a huge plumbing parts manufacturer named "Crane".
I found nothing on "P & M" (which is no surprise, as trying to find information using Google using only two letters of the alphabet is a fool's errand.)
What I did find was that Hubert R. Crane was issued a number of patents, all of which relate to pipe.
Your "expanding mandrel" is a device to expand the end of a pipe. (see swaging)
As an odd coincidence, there used to be a huge plumbing parts manufacturer named "Crane".
Attachments
Mine is like fig 3 in the first image, with only two pieces that move. Seems like that would cause the pipe to expand unevenly. Trying to expand galvanized pipe with this tool would require a lot of force, and there's better options for tubing.
Me thinks "expanding" on the patent refers to the action, not the function.
Don't know if Hubert is related to the founding Crane brothers, but its an interesting coincidence.
en.wikipedia.org
Me thinks "expanding" on the patent refers to the action, not the function.
Don't know if Hubert is related to the founding Crane brothers, but its an interesting coincidence.