Subject screw clamp

Frequently, a product becomes loaded when it is subjected to a defined deflection. The actual load then is a result of the structural reaction of the product to the applied strain. Unlike directly applied loads, strain-induced loads are dependent on the modulus of elasticity and, with TPs, will generally decrease in magnitude over time. Many assembly and thermal stresses could be the result of strain-induced loads. They include metal insert press fits in the plastic and clamping or screw attachments. 

A similar idea has been made the subject of a patent by Holoubek Eng. Pat. 24,440, 1904, Pig. 20). The soap is run into frames or moulds having open sides, which are closed by l)eing clamped with screws and pressure plates between cooling tubes through which water circulates. 

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