!Help identifying year of Wrench Please!

[Haydenpaul1]

Howdy y’all I just purchased a Vintage 8” Cochran Speed Nut wrench, and I needed help identifying the exact year it coulda been made I know they ran from the year of 1910 to I believe the late 20s under different manufacturers and the later models had the pin lock on the head of the wrench I’ve attached pictures of the wrench as it says Patent Pending on it so it was before the Patent Was Finalized. Any help would be greatly appreciated Thanks Y’all!

 

[Farmer J.]

There was some discussion about those not long ago, and a load of information posted by Private Lugnutz..
Have a read here:
https://www.garagejournal.com/forum/showthread.php?t=410452

 

[Private Lugnutz]

Thanks for your PM, Haydenpaul, and I see that it was Farmer J. who steered you on my direction.

That's a really nice specimen you have there. Very clean.

All of the PATENT PENDING wrenches like yours had to have been made after May 1915, which is the date the Cochran Pipe Wrench Mfg Company submitted the patent application, and before May 1916, which is the date the patent was granted. After May 1916, the wrenches were marked with the patent date.

I refer to the PATENT PENDING Cochran Speednuts as 2nd generation, with the patent date Cochran Speednuts as 3rd generation, because of the ads I found advertising the Cochran Speednut as early as January 1914 a full year and a half before they submitted their patent application. They wouldn't have marked the wrenches PATENT PENDING before they filed their application. Having said that, this is theoretical, based on the facts at hand, because I have never seen any Cochran Speednut wrench without a patent date or a PATENT PENDING marking. We simply don't know what those 1914 and very early 1915 wrenches looked like without samples.