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| Spread (ls)
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Maximum distance between two vertical planes tangent to a specified envelope and perpendicular to a plane through the core center. The spread are generally referred to the envelope corresponding to 0.25 m/s for zero supply temperature differential (i.e., under isothermal conditions). |
| Spread footing
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Wide based foundation footing used to spread the load of a structure over a wider area when the foundation is on weak soil. |
| Spreader
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Similar to a riving knife, spreaders are found on table and radial saws. Spreaders keep the kerf from closing and pinching the blade during cuts and help prevent kickback. |
| Spreader bar
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Stiff bar that is used to separate the rigging of a crane hook that is attached at different places to the large object being lifted. By doing so, the object can be held vertically even when being lifted by a single hook. |
| Spreader box
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The paving machine, which spreads asphalt, when it is fixed onto the back of a truck. |
| Spreader stocker
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A type of furnace in which fuel is spread, automatically or mechanically, across the furnace grate. |
| Spreading agreement
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An agreement that extends the collateral of a loan to include several properties. |
| Spreading rate
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The area to which a paint can be spread; usually expressed as square feet per gallon. |
| Sprig
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(1) Small dowel stick used to attach two pieces of wood together. (2) A finishing nail without a head. |
| Spring
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A coil of wire that returns to its original form whenever it is forced out of shape. Springs can be used to absorb shocks and are found in watches, garage doors, etc. |
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