This may be a corruption of rimer, for opening circular holes in metal.
This is effected with a rimer, Figs. 81 and 82, and is an operation requiring great care and attention.
Against him is every Critick, ancient and modern, from Aristotle to Rimer, and more than all of them against him is his own self.
Fig. 82 is of an improved form of rimer, termed a riming spring.
“He was an extremely clever fellow to whom I taught the art of elaborate rhyming” (rimer difficilement).