Also limbers... in numeorus ills. and some old p.graphs., the pony driver can be sitting 'side saddle' fashion over the left hand limber - or shaft (necessary for the proper driving position) - even though one normally leads a pony/horse with the left hand on the right hand side of the animal! Re a horse and cart, they are called shafts of course, but some old Army terminology used limbers as well, so the gnrl. terminology has been 'mixed' up a bit one way and another shall we say! Most likely limmers is yet another 'corruption' shall we say, but they all mean the same thing at the end of the day! Their true definition is really a shaft, but in a mine a shaft is a shaft and it is best to keep this meaning what it means! Regards, Bernard