dozzle

the tobacco left at the bottom of a pipe and put on the top of the next fill: dottle; in a general sense, a plug or a cap to top something off.

1892, Richard Oliver Heslop, Northumberland Words. English Dialect Society - Kegan Paul et al. Neebody can smoke twist without a dozzle.

a paste flower on top of a pie cover.

the straw ornament on top of a haystack.

A device, originally a heated sleave of fire clay, variously used to introduce molten metal to counter the formation of hollows in metal castings as they shrink while the mould cools. Now commonly called hot top or feeder head

The method of preventing the formation of shrinkage cavity within bottom cast ingots which consists introducing the metal into the mould through a dozzle and a plate having a plurality of inclined conduits, whereby the incoming metal is directed against the walls of the dozzle, this heating said walls to incandescence, then reversing the mould, said dozzle after the mould is reversed causing the metal in contact therewith to feed downwards into any shrinkage cavity within the ingot.

When the metal has risen to within, say, 3 inches of the top of the mold, a “dozzle," which has been previously heated in one of the holes, is quickly dropped on top of the metal in the mold, and held in position whilst the few pounds of metal remaining in the crucible are poured through its center.

To stupify; to render dull or insensible.

I fetched him a topper as he rushed at me. I dipped and dived under his hind legs, threw him a summersault upon his back, and before he could recover from his surprise, I dealt him such a blow on the nape of his neck, that 'dozzled' him at once.

How it dizzied and dozzled, too! And what a fratch yon was! My word! but Ralph did ding them over, both of them!

To use a dozzle in order to prevent shrinkage when casting in a mold.

This point has long been recognised in Sheffield in the manufacture of special steels, both for small and large ingots of crucible cast steel, in which the uppor or top portion is provided with a fireclay top or "dozzler”; in other words , the ingot is “dozzled.”

Ingots are still cast into moulds with parallel sides, but they are dozzled, and it is generally believed that the ingots so produced are quite sound.