1891 Print Wire-Cable Hoisting Apparatus Quarry Brandywine Granite MAB1

This is an original 1891 halftone print of the Wire-cable hoisting and conveying apparatus at the quarries of the Brandywine Granite Company in Wilmington, Delaware. The most interesting feature of the Wilmington quarries is the wire cable hoisting and conveying apparatus. There are three of these conveyers reaching from one side of the river to the other, a distance of about 1,200 feet. The stone is quarried from both sides of the river. Blocks of granite weighing ten tons are lifted by one man operating a hoisting engine, and by him transferred across the river and deposited upon a car. The conveyer is a steel wire rope two inches in diameter, anchored and resting upon "A" frame braces at each end. The cable may be either level or inclined as desired. The carriage travels either way on the cable, being propelled by means of an endless rope operated by a hoisting engine. This endless rope is sustained by carriers to prevent its sagging. By means of this rope the carriage may be stopped and held at any point on the cable while the stone is being hoisted or lowered. The hoisting and conveying may be carried on either separately or together, in the latter case effecting a great saving in time. The reach of one of these conveyers extends at an angle of 45 degrees form the cable, by means of which stone can be dragged until it is suspended.

CONDITION

This 120+ year old Item is rated Very Fine ++. Light aging throughout. No creases. No natural defects. No surface rub. No tears. No water damage. Please note that there is printing on the reverse. Also there is bleed through showing as well.

• Product Type: Original Halftone Print; Black / White
• Grade: Very Fine ++
• Dimensions: Approximately 8 x 4.75 inches; 20 x 12 cm
• Authentication: Serial-Numbered Certificate of Authenticity w/ Full Provenance
• Protection: Packaged in a custom archival sleeve with an acid-free black board (great for display, gift-giving, and preservation)

Keywords specific to this image: vintage machine

MAB1A1C91