expansion rollers

expansion rollers

[ik′span·shən ‚rō·lərz]
(civil engineering)
Rollers fitted to one support of a bridge or truss to allow for thermal expansion and contraction.
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References in periodicals archive ?
The Spreader Rubber Roller, the ITMA news, can replace slatted expansion rollers and spreader rollers with elastic cords, especially when the customer needs to iron wrinkles but there is low pressure applied on the fabric.
This roller can replace slatted expansion rollers and spreader rollers with elastic cords, especially when the customer needs to iron wrinkles but there is low pressure applied on the fabric.