Averruncator

Fig.1 shows the handle and head of an averruncator. Fig. 2 shows the head in use.

An averruncator is a form of long shears used in arboriculture for averruncating or pruning off the higher branches of trees, etc.

Etymology

The word averruncate (from Latin averruncare, "to ward off, remove mischief") glided into meaning to weed the ground, prune vines, etc., by a supposed derivation from the Lat. ab, "off", and eruncare, "to weed out", and it was spelt aberuncate to suit this; but the New English Dictionary regards such a derivation as impossible.

Description

An averruncator has a compound blade attached to a handle between five and eight feet long. The blades are closed with a rope and pulley, and they are opened with a spring.

Notes

•  Chisholm, Hugh, ed. (1911). "Averruncator". Encyclopædia Britannica 3 (11th ed.). Cambridge University Press.