The Encyclopedia of Founding

Twelve hundred entries from the golden age of cast metal — how bells are founded, why brass is not bronze, what a cupola melts and a core withstands — by Simpson Bolland, the trade's great teacher.

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Packing Sand – Pit-coal

Packing Sand

The process of forcing sand into the flasks or around patterns bedded in the floor is sometimes termed packing. See RAMMING.

Part

A foundry term, used to signify any one of the sections composing a set of flasks; as top-part, middle-part, bottom-part, etc. See FLASKS.

Particle

A minute part of matter, an assemblage of general atoms, of which natural bodies are composed, as a particle of sand, etc.

Pea-ore

A form of compact brown iron ore, consisting of round, smooth grains varying in size from a mustard-seed to a pea. See ORES.

Peck

A dry measure of capacity, and equivalent to two imperial gallons, or 554.548 cubic inches. The fourth part of a bushel.

Petroleum-furnace

A furnace in which petroleum alone, or mixed with air or steam, is used exclusively for fuel. See LIQUID FUEL; PETROLEUM.

Pick-hammer

A steel hammer with tempered points, for use in discovering scoria and other dirt which may be lodged under the thin skin of castings.

Pin

A common name in the foundry for a gate-pin, also a flask-pin. See GATE-PIN; SNUG.

Pincers

An instrument for grasping objects, drawing nails, etc. Two handles work the jaws, which are held in position by a pivot.

Pinch-bar

A long bar of steel or iron, fashioned at the end, suitable for raising weights or propelling vehicles. See LEVER.

Pinchbeck

An imitation gold, composed of copper 5, zinc 2. See GOLD; TOMBAC.

Pit-coal

The name given to mineral coal to distinguish it from charcoal. See COAL.

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