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
The paving machine, which spreads asphalt, when it is fixed onto the back of a truck.
Spreader stocker
A type of furnace in which fuel is spread, automatically or mechanically, across the furnace grate.
Spreading agreement
An agreement that extends the collateral of a loan to include several properties.
Spreading rate
The area to which a paint can be spread; usually expressed as square feet per gallon.
Sprig
(1) Small dowel stick used to attach two pieces of wood together. (2) A finishing nail without a head.
Spring
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.
Spring clamp
Spring clamps provide fast application of lighter pressure for hobbyists and home craftsmen. The spring is encased for safety. Available with openings of 1, 2 and 3 inches.
Spring steel
Heat treated iron and carbon alloys are used to make springs. Chrome-vanadium or silicon manganese steel is used to make large springs, which smaller springs are made from carbon steel.
Spring-action blade guard
A spring-action blade guard helps hold down the workpiece while providing a clear view of the cutting line.
