English Dictionary

ferrule

/ˈfɛɹ(ə)l/

noun

A band or cap (usually metal) placed around a shaft to reinforce it or to prevent splitting. / (specifically, climbing) The metal spike at the end of the shaft of an ice axe.

The ferrule on the pencil is loose.

意味（1）

A band or cap (usually metal) placed around a shaft to reinforce it or to prevent splitting.

意味（2）

(specifically, climbing) The metal spike at the end of the shaft of an ice axe.

He [Larry Penberthy] feels metal ice axes are the only safe ones. […] If you do purchase a wood-shafted ax, examine the grain carefully. It should be straight, free of knots and flaws, and continue unbroken from head to ferrule. Rub it often with linseed oil.

意味（3）

A bushing for securing a pipe joint.

Lead pipe is usually wiped to caulking ferrules so it can be joined to another type of material. Ferrules must be made of red brass.

意味（4）

A metal sleeve placed inside a gutter at the top.

Another method of attaching gutters is the spike-and-ferrule system. Position the gutter, then temporarily nail it to the fascia with 6d common nails at several places. Place the ferrule inside the gutter at bead height, lined up with the end of a rafter. Drive the spike through the gutter bead, ferrule and fascia board into the rafter.

意味（5）

(billiards) The plastic band attaching the tip to the cue.

During a short break he clamped the tenon machine to the countertop; then he took a few cues that were in need of repair and began replacing their ferrules. […] By two-thirty, a dozen cues had new white ferrules and leather tips.

意味（6）

(painting) The pinched metal band which holds the bristles of a paintbrush to the shaft.

The ferrule is the part of the brush that connects the bristles to the handle. The type of ferrule often dictates the name of the brush, such as a 3-inch flat-ferrule or an oval-ferrule sash. […] The ferrule is attached to the handle with small nails (brads) or by crimping the ferrule around the handle.