What is "warping mill"

Warping \Warp"ing\, n.

1. The act or process of one who, or that which, warps.

2. The art or occupation of preparing warp or webs for the weaver.
   --Craig.

   Warping bank, a bank of earth raised round a field to retain water let in for the purpose of enriching land.
   --Craig.

   Warping hook, a hook used by rope makers for hanging the yarn on, when warping it into hauls for tarring.

   Warping mill, a machine for warping yarn.

   Warping penny, money, varying according to the length of the thread, paid to the weaver by the spinner on laying the warp. [Prov. Eng.]
   --Wright.

   Warping post, a strong post used in warping rope-yarn.