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Hand-ladle – Hydraulic Casting-press

Hand-ladle

See LADLES.

Hard Brass

Copper 100, tin 10, zinc 5. See BRASS; SPECULUM METAL.

Herbertz Steam-jet Cupola

See STEAM-JET CUPOLA.

Hexagon

A plane figure bounded by six straight lines. When these are equal the hexagon is regular.

Horn-gate

See FOUNTAIN-RUNNER.

Horn-quicksilver

The native subchloride of mercury. It occurs in the mines of Idria in Carniola, and Almaden in Spain. See MERCURY.

Horse

A common term for the trestle or stands used for blocking moulds in the foundry. See STANDS; TRESTLE.

Hydraulic Casting-press

Used for the production of homogeneous steel. See HONEYCOMBING; COMPRESSED CASTINGS.