umberilla2

Raw Materials

Materials used to manufacture umbrellas have, of course, improved through the years. One of the most important innovations came in the early 1850s, when Samuel Fox conceived the idea of using "U" shaped steel rods for the ribs and stretchers to make a lighter, stronger frame. Previously, English umbrellas had been made from either cane or whalebone; whalebone umbrellas especially were bulky and awkward. Rounded ribs and stretchers are frequently seen today only on parasols and patio umbrellas. Advancements in metal-producing technology have made rounded metal ribs and stretchers more feasible, however, and some manufacturers produce umbrellas with these components. Modern rain umbrellas are made with fabrics (nylon, most commonly) that can withstand a drenching rain, dry quickly, fold easily, and are available in a variety of colors and designs.

The Manufacturing
Process

Modern umbrellas are made by a hand-assembly process that, except for a few critical areas, can be done by semi-skilled workers. Choices of materials and quality control occur throughout the manufacturing process. Although a well-made umbrella need not be expensive, almost every purchasing decision impacts directly upon the quality of the final product.

Collapsible rain umbrellas that telescope into a length of about a foot are the most recent innovations in umbrellas. Though mechanically more complicated than stick umbrellas, they share the same basic technology. Among the differences between a stick umbrella and a collapsible umbrella is that the collapsible uses a two piece shaft that telescopes into itself, and an extra set of runners along the top of the umbrella. This section will focus on the manufacture of a stick umbrella.