Tarpaulin

The cover is a term used by sailors language for an impregnated tissue as well as for water resistant covers and protective covers from such tissue.

Linguistic

Previously was the word Presenning. It comes from Dutch from Presenning and goes over french préceinte " wrapping " on Old French proceindre "including" back, with Latin praecingere has acted " with something surrounded ."

There are several plural forms: the covers and tarpaulins, tarpaulins rarer.

Properties of the tissue

The impregnation was in earlier centuries by tars and the use of multiple layers of fabric reaches (hence the term " Teerjacke " for sailor ), and later by coating with rubber. Today, plastics are used, such as PVC, acrylic or polyester. Acrylic fabrics usually have on the inside of the fabric an acrylate or polyurethane coating, so that the fabric is waterproof. Modern fabrics keep a water column of 800-1700 mm stand.

Use

Covers on boats and ships

A tonneau cover can cover an entire boat (whole or Boatcovers ) or only parts of it. For example, protects a Boom cover only the harness and it folded sail.

On seagoing vessels, for example, the cover of hatches were covered with tarpaulins. As long as the ship went under the coast (or on channel navigation, see photo ), they confined themselves usually with two layers of tarpaulin, traveling by sea three layers were superimposed. The covers were then laterally under the slats Schalk " smashed " and verschalkt with large wooden wedges between Schalkklampen and Lukenkumming out. Over the width of the hatch away the covers with closure slats ( crossbars ) were secured against blowing away in a storm. On larger vessels the batten was primarily the task of the ship carpenter, on smaller work the deck crew. With increasing incorporation of steel hatch covers ( MacGregor and other patents ) were used less and less covers for hatch covers from the 1950s.

Covers for convertibles

A cover (as opposed to the top or roof) a cover that is installed below the roof line (on the "belt or belt line " ), and thus, in use, a vehicle does not stay in place, but must be removed for vehicle use. Even the cover of the open convertible top is called the cover. It is needed in order to avoid contamination, fluttering movements or vibrations of the top. They must often be specially bred or unbuttoned to the folded back convertible top.

Examples of current convertibles, the need for a tonneau cover:

• VW New Beetle Convertible
• Chrysler PT Cruiser Convertible
• BMW Z8