[GreenKeys] Tools you can use.

[Dave G4UGM]

After reading a bit I discovered that USP 184993  is actually referred to as
a Boston Wrench and was produced by the Boston Wrench company. Looking at
the original Stillson patent, which is here
 
http://www.datamp.org/patents/displayPatent.php?number=95,744&type=
 
you can see that the a Stillson has a pivot in it. However both of
Stillson's patents use a nut on a threaded rod, and have a spring in them.
The spanner in the picture has a short piece of threaded rod that turns
against a rack and not spring, so not the same thing. The other type of pipe
wrench I am familiar with my dad always called a "footprint" wrench..
 
https://www.machinemart.co.uk/shop/product/details/698w-9in-pipe-wrench?da=1
&TC=GS-040510698
 
Who would have thought there were so many types of adjustable spanners...
 
Dave
 
 
 
From: GreenKeys [mailto:greenkeys-bounces at mailman.qth.net] On Behalf Of
Richard Knoppow
Sent: 21 June 2015 04:48
To: greenkeys at mailman.qth.net
Subject: Re: [GreenKeys] Tools you can use.
 
    The thing in the picture is properly a Stillson wrench   see USP 184993
The other kind is a "pipe wrench"   for instance USP  765912 or 2629280
There are probably many others.   
On 6/20/2015 8:39 PM, drlegendre . wrote:
I'm not sure how these tools came to be called "monkey wrenches" - which is
common vernacular - but from plumbing work, I know them as a 'union wrench'.

 
That is, they're used to torque the nut in a pipe union. Unlike pipe
fittings, union nuts have big flats on them, and they're not designed to be
torqued with a standard pipe wrench that tends to crush the workpiece. 
 
On Sat, Jun 20, 2015 at 10:12 PM, tony.podrasky <tony.podrasky at gmail.com
<mailto:tony.podrasky at gmail.com> > wrote:
See Attached Joke...


On 06/20/2015 08:05 PM, Don Robert House K9TTY wrote:

I always thought this was a joke, but my Dad kept telling me "No it
is really a Monkey Wrench"
 
-- 
Oh, great: This new "Day Planner" I bought has
nothing but blank pages.  Now I have no idea
what I'm supposed to be doing tomorrow.
                             -Blaine Hofmockel

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-- 
Richard Knoppow
1oldlens1 at ix.netcom.com <mailto:1oldlens1 at ix.netcom.com> 
WB6KBL
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