A roof constructed of flat plates, usually of reinforced concrete, joined at various angles.


Related Terms

PLATE VIBRATOR

A mechanically operated tamper fitted with a flat base.

PLATEN

1.A flat plate against which something rests or is pressed. 2. The rubber-covered roller of a typewriter against which paper is pressed when struck by the typebars. 2. A flat surface for exchanging heat in a boiler or heat exchanger which may have extended heat transfer surfaces.

PADDLE

Any of various implements consisting of a shaft with a broad, flat blade or bladelike part at one or both ends.

ORTHOTROPIC DECK

A bridge deck constructed typically of flat steel plate and longitudinal and transverse ribs; functions in carrying traffic and acting as top flanges of floor beams.

O RING

A flat ring made from synthetic rubber, used as an airtight seal or a seal against high pressures.

NAILHEAD

Flat protuberance at the end of a nail opposite the point.

MACHINE BOLT

A heavy-weight bolt with a square, hexagonal, or flat head used in the automotive, aircraft, and machinery fields.

LEAF SPRING

A beam of cantilever design, firmly anchored at one end and with a large deflection under a load. Also known as flat spring.

LAMINATED SPRING

A flat or curved spring made of thin superimposed plates and forming a cantilever or beam of uniform strength.

KEYWAY

1. An opening in a lock for passage of a flat metal key. 2. The pocket in the driven element to provide a driving surface for the key. 3. A groove or channel for a key in any mechanical part. Also known as key seat.

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