Hat Manuf. [? f. LOCK sb.1 + -ING1.] (See quot.)

1

1900.  Ann. Rep. Insp. Factories for 1898, II. 167. Locking…. This is the last stage before the fur passes to the felt hat manufacturer—the trays of shaven fur … are taken to women who remove the outer edges, leaving only the fur of the back which they compact by pressing it in the hand and place it in a bag.

2