When created prior to 1895, Acme screw threads were intended to replace square threads and a variety of threads of other forms used chiefly for the purpose of traversing on machines, tools, etc . Acme screw threads are now extensively used for a variety of purposes.
2.
When created prior to 1895, Acme screw threads were intended to replace square threads and a variety of threads of other forms used chiefly for the purpose of traversing on machines, tools, etc . Acme screw threads are now extensively used for a variety of purposes.
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