BLACK ROCK ROPE MANUFACTORY.--The extensive Ropewalk of Messrs. DURFE & CO., which has been building for the last three months, has at length been completed and gone into vigorous operation. This establishment we believe is surpassed by few, if any, of the kind in the United States.--The main building is 660 feet in length, terminating at one extremity in an apartment 60 by 30, and at the other in a building 28 feet square. Extending from end to end is a railway upon which is arranged a number of moveable jacks, to which horses are attached, that draw out while they twist together the threads of the cordage. The manufactory furnishes constant employment for forty or fifty men and boys, who, aided by the machinery, are able daily to transform a ton of hemp from its raw state to ropes of the best quality.
The encouragement with which the proprietors have already met has been so great, that it is found necessary thus early to enlarge the establishment in order to meet the demands of the market. Arrangements have accordingly been made to double the width of the walk, and erect another additional building, 50 feet by 20, for the operations of taring.
Capitalists at a distance, whose attention to so great an extent has been recently drawn to the inducements here offered for engaging in manufacturing operations, and to the unlimited facilities here presented for building up and sustaining a manufacturing and commercial town, have an additional assurance, in the success of this establishment, that their confidence has not been misplaced, and that their liberal investments here will yield them an ample return.