I have a heavy, 2 sided adjustable wrench that opens & closes by turning the 8 sided handle. As the handle turns, the worm drive opens/closes the 2 sided head which is divided by a flat iron bar attached to the worm drive at the bottom & the wrench head at the top. The 2 sides of the head are the same in size, shape, and design. Both are flat, have no teeth or other gripping surface. Each side is almost 1 1/2 " in length.

On one side of the head is printed "Norddeutscher Lloyd' (North German Lloyd). On the flat iron bar is a logo consisting of the letter "S" which ends at the bottom swirl in the shape of a dolphin. Below that is printed "Ganz Geschmiedet."

The wrench is apparently intended for marine use & seems specialized to a particular task or type of machinery.

Does anyone know anything about the wrench, the logo or the name?

Welcome to Tool Talk, Post some pictures of your wrench and it will help with any replies. Sonds like it is a double jaw adjustable that was made in Germany. This same design was made in other European countries.

Anything like this?

https://assets.catawiki.nl/assets/2020/10/14/e/3/9/e3906dd5-43f3-46de-8a88-b9b2e276831d.jpg

Thanks for the photo & response. Looks like the wrench is not as rare/unusual as I thought.

Close, especially the double jawed head. Mine is entirely metal w/ a "pushbar" in the middle that goes up & down as you turn the handle. Single worm drive in the middle turns as you twist the handle.

Quote from: Northwoods on November 29, 2020, 06:41:48 PM
Anything like this?

https://assets.catawiki.nl/assets/2020/10/14/e/3/9/e3906dd5-43f3-46de-8a88-b9b2e276831d.jpg

That style with the side rods to keep the jaws aligned & the left / right hand central threaded shaft was referred to as 'French style" in German tool literature.  (I just spent two months researching  German (pre-WWII) wrenches through the materials available in Google books & the HATHI Trust.) 

After a bit of research, I wonder if the  "S & dolphin" could have been a maker mark.  "Norddeutscher Lloyd" appears to have been a steamship line that operated between Bremen, Southampton & New York City. I found an 1865 ad.  If my surmise is correct the "Norddeutscher Lloyd" would have been an ownership mark.

Thanks for the info on differentiating the design between the French & German style. I'm certain mine is German by both construction & everything written on it is in German. It was probably the property of the North German Lloyd line & used by a machinist/sailor /"black gang" member while on board.

As for the S shaped dolphin, I did a lot of research bot on German toolmakers & the shipping company but could find nothing even close. I'll probably stumble upon it completely by accident looking for something else. I feel certain it's a German tool makers' mark.

The Lloyd line used to dock in Hoboken, NJ rather than NYC. Don't know why. research showed they joined w/ another German shipping company about 1950 & now sail as Hapag-Lloyd. Mostly container ships I think.

Thanks for spending time trying to help me out