Trimont Mfg. Co.

woody 73 · Jul 25, 2016

The pipe wrench was invented and patented on sept. 13th, 1870 by Daniel Stillson at which time he took his ideas to the Walworth Co.

In 1888 Johan petter Johansson patented the first Adjustable pipe wrench.

Starting in 1889 (?) two founders Alfred Charles and Edward Ely started the Trimont Mfg. Co that lasted till 1954 (?) in Roxbury Ma.

I have some very nice examples in two sets of pictures showing a few of their patents; the pipe wrenches are by no means rare but they are indeed all vintage.

Hope you enjoy the pictures and just another tool too look out for in your tool hunts!

woody 73 · Jul 25, 2016

A few more pictures:

woody 73 · Jul 25, 2016

A few links with some more History:

http://forthillhistory.tumblr.com/post/17692808211/the-trimont-tool-company

http://www.datamp.org/patents/search/xrefCompany.php?id=1254

http://datamp.org/patents/advance.php?id=13811&set=7

http://vintageadsandbooks.com/trimo...eads-where-work-is-hardest-oil-fields-ad.html

http://handymanjimnoonan.blogspot.com/2009/05/antique-wrench-trimont-mfg.html

http://datamp.org/patents/search/xrefCompany.php?id=1253

ganymede · Jul 25, 2016

Thanks Woody.
I love Trimo monkey wrenches. My favs.
Here's a pic of the factory I had posted in another thread..

McFarmer · Jul 25, 2016

I've got a huuuuge Trimont pipe wrench, how do you date them ?

Ole Slewfoot · Jul 28, 2016

Plain, 1916 adds nut guards, 1923 adds guide ears for the landing pads.
Edit; Im pretty sure red paint dipped handles show up near the end of the ride.

twertsy · Jul 28, 2016

Tough to find info on this one Woody! "Trimo" TM in '26, but in use since 1894. Looks like they were acquired by Aetna Industrial in early 1950, then by 1954, owned by St. Pierre Chain Corp. In 1965, St. Pierre assigned the TRIMO TM to Lowell Wrench Co. It wasn't renewed subsequently.

ganymede · Mar 24, 2017

Pre Depression monkey wrench.
They even stamped the nut guards with patent dates..

.View media item 69266 View media item 69267

d42jeep · Mar 24, 2017

Here is my 12" Trimo monkey wrench.
-Don

Private Lugnutz · Apr 21, 2018

I picked up a 12" TRIMO at the flea market today, explicitly because of the crisp, handsome, and well-placed "USN" stamp on the head.

McFarmer · Apr 21, 2018

I have two Trimonts, one is like a 36 incher. Good tools.

I used to have one from Stilson, broke it.

Ole Slewfoot · Apr 23, 2018

Aye.

Continuing the monkey theme, this one is waiting its turn, while I figure out how to deal with the wood. It has weathering, but I think 0 wear.

redwrench60 · Jan 9, 2019

I’ve had this ancient Trimont 24” pipe wrench for several years in my box at home. It’s time for Ol’ Trimo to come out of retirement and get pressed back into service working with large fittings and pipe connections on equipment.

I’d like to shoot it with some paint since it’s been bare steel since I’ve owned it but I figure it had to have been painted at one time, I just don’t know what color. Anybody know what color these were painted originally?

Ole Slewfoot · Jan 10, 2019

Is that 'alloy a' stamped or forged on the handle?or an owner mark?

"black Japanned finish"
Jaw machined surfaces and cradle often polished.

I keep a pair of those 24s in my work truck.

like this https://www.ebay.com/itm/Vintage-Tr...240222?hash=item2f1923cf9e:g:3rQAAOSwSLtawnb~

Near the end of the line, they were painted grey, then handle dipped in red...some of these have 'St Pierre Chain' forged in the handle.

Here mine pose with a baby H.D.Smith and some other tools.

redwrench60 · Jan 10, 2019

Ole Slewfoot said:
Is that 'alloy a' stamped or forged on the handle?or an owner mark?

"black Japanned finish"
Jaw machined surfaces and cradle often polished.

I keep a pair of those 24s in my work truck.

like this https://www.ebay.com/itm/Vintage-Tr...240222?hash=item2f1923cf9e:g:3rQAAOSwSLtawnb~

Near the end of the line, they were painted grey, then handle dipped in red...some of these have 'St Pierre Chain' forged in the handle.

Here mine pose with a baby H.D.Smith and some other tools.

It appears to be forged into the wrench but the letters are raised and kind of crude. It’s a good old wrench. I was just standing on the handle earlier tightening a few fittings.

four.cycle · Jan 10, 2019

four.cycle · Jan 10, 2019

four.cycle · Jan 10, 2019

four.cycle · Jan 10, 2019

Ole Slewfoot · Jan 10, 2019

redwrench60 said:
It appears to be forged into the wrench but the letters are raised and kind of crude. It’s a good old wrench. I was just standing on the handle earlier tightening a few fittings.

Not seen that mark before, but I'd wager it's to do with WWII alloy restrictions, and they may have skipped cosmetic grinding and polishing operations on your wrench.

redwrench60 · Jan 10, 2019

Ole Slewfoot said:
Not seen that mark before, but I'd wager it's to do with WWII alloy restrictions, and they may have skipped cosmetic grinding and polishing operations on your wrench.

No way to tell how old that wrench is. Pretty old though. I don't know the tools history since I picked it up used. There might be a clue in the last of the old catalog pages Four Cycle posted with Trimo advertising their new and improved alloy steel wrenches. Whatever time period that was.

It's almost a shame to hit this thing with flat black. There's a slight remnant of dark green paint traces perhaps from another life with another owner.

d42jeep · Jan 11, 2019

I have had quite a few Trimo pipe wrenches. Some of them came with our summer cabin and were quite early. It looks like they went to the alloy wrenches around 1935 and those have Cro Mol marked on the hooks. I changed to collecting Walco pipe wrenches for my WW2 sets since they have the year of manufacture forged on the handles and hooks. The Trimo wrenches are rather difficult to date exactly.
-Don

HeelSpur · Jan 11, 2019

Here's an 8" pipe wrench shipping box. Bought it from someone over at papaws several years ago.

DSCF2219 by wvwheaties, on Flickr

DSCF2220 by wvwheaties, on Flickr

redwrench60 · Jan 27, 2019

Spotted this in the Leatherman multitool display at Smoky Mountain Knife Works. Asked them what they’d take for it. Guy just chuckled and said I wasn’t the first to offer.

d42jeep · Jan 27, 2019

I cleaned up the 14” Trimo Stillson I found at the flea recently and compared it to my USN marked one. With the absence of the Cr Mol on the moveable jaw, I assume these two are wartime. It looks like the USN one was originally Japanned.
-Don

HeelSpur · May 29, 2021

Here's a 12" Combo pipe/nut wrench.

DSCF3830 (2) by wvwheaties, on Flickr

DSCF3831 (2) by wvwheaties, on Flickr

d42jeep · May 12, 2022

Here is a decent Trimo pipe wrench I found a while back and posted on the vintage pipe wrench thread but it probably belongs here. It’s likely prewar with the chrome moly marking on the jaw.

-Don

Private Lugnutz · Aug 26, 2022

As first reported on the GS thread, I found this oddball today, which 3baygarage thought might be a Trimo basin wrench. He was right!

I was hoping to be able to identify the exact year of its production based on the "PAT. APLD. FOR" marking, but the patent is not in DATAMP, or by the TM record, but I haven't located the serial or registration number for that yet, either. But it's dang old. The earliest ad I have found for it is 1891, which is only two years before my house was built! (No, it doesn't have its original sink.)

It's a shame that it's so pitted, which is obscuring most of the branding, and because I have seen a few online (see last pic) in much better condition in which that shield-shaped TM emblem really pops.

But "beggars (and those who prefer to find their antique tools on $1 tables at flea markets) can't be choosers," as they say.

Private Lugnutz · Aug 26, 2022

Almost forgot. It has a foundry/forge mark on the other side. Bonne Forge? Not sure.

d42jeep · Nov 16, 2022

I found a Trimo wood handled pipe wrench at a local estate sale this morning. It has the 1916 patent date markings. I think it will clean up pretty well.

-Don

HeelSpur · Nov 17, 2022

The 12" Trimo Spud.

d42jeep · Nov 17, 2022

I gave the 10” Trimo a bit of cleaning this afternoon. There is a marking of 4-22 on the moveable jaw which may be a date.
-Don

d42jeep · Feb 18, 2023

My wife spotted this 21” Trimo monkey wrench hanging on the wall of the garage at an estate sale this morning. It looked like it needed a new home.
-Don

The annoying yellow paint was extremely resistant to any efforts to remove it so I took it as a personal challenge.

Here it is alongside my 12“ Trimo posted in this thread in 2017.

HeelSpur · Apr 27, 2023

Was looking thru my Trimo wrenches and never knew about the 2 different sizes of the 6 inchers. The bottom one is the same in post #1, anyone know what " Ord Dept" is?

Lesserstore · Apr 27, 2023

HeelSpur said:
Was looking thru my Trimo wrenches and never knew about the 2 different sizes of the 6 inchers. The bottom one is the same in post #1, anyone know what " Ord Dept" is?

U.S. Army Ordnance Department

d42jeep · Apr 27, 2023

They took over responsibility for supplying tools from the Quartermaster Corps during WW2.
-Don

redjalopygarage · Apr 27, 2023

"ORD" Is the ordinance department from the military, likely the Army at that time. Cool find!

Ole Slewfoot · Apr 27, 2023

I went through all the listings on eBay, and came to the conclusion wrenches 10" and smaller never featured the heavy duty ears on the landing pads, so that's only useful dating the larger wrenches.

d42jeep · Apr 29, 2023

I found this nice 12” Trimo at an estate sale yesterday. The paint is well preserved and the jaws look mostly undamaged as well. I’ll blow off the dust and add it to the others on display.
-Don

Leviton · Mar 22, 2024

Bought this guy for $5 and worked diligently to remove dirt and rust while maintaining as much of the original paint as possible. Didn't want to Evaporust and end up with a a dull gray color to everything. Was happy to find both nut guards and the spring all there. Teeth are in pretty good shape too.

Markings are:
"Size 18'' Drop Forged Pat'd 3-5-18"
"Trimont Mfg Co Roxbury Mass USA"
"Trimo" (2x)
The carrier shell is stamped "Trimo 18" and "Trimo 18 Pat'd"
Jaw is stamped: "Trimo .x. Size 18'' "( the "x" is very weird and non-symmetrical) and "Drop Forged Patented"
"Trimo 18 Pat'd" inside each of two nut guards .
And a "6" or a "9" forge mark

Trimont Mfg. Co.

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