Adjustable Spanners

August 4, 2010

Mauser Adjustable Spanner (Engländer, verstellbarer Schraubenschlüssel)

Filed under: Makers, Quick adjust — admin @ 8:48 pm

I got this on Ebay, very little wear but does have some damage to the worm which after a little investigation is a basic design fault, there is a turning moment that rotates the worm out of mesh when the force is applied, this can be demonstrated with just finger force on the moving jaw.

Mauser Adjustable spanner
Mauser adjustable spanner
Mauser adjustable spanner, close up of worm damage

I dont have a date yet for the spanner but I do have an English patent dated 1948 which does not mention Mauser at all but the patent is so similar to the tool that its a copy or… will someone tell me.
Patent 606388 Littleales and Levison

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