An envelope is a common packaging item, usually made of thin flat material. It is designed to contain a flat object, such as a letter or card.

Traditional envelopes are made from sheets of paper cut to one of three shapes: a rhombus, a short-arm cross, or a kite. These shapes allow for the creation of the envelope structure by folding the sheet sides around a central rectangular area. In this manner, a rectangle-faced enclosure is formed with an arrangement of four flaps on the reverse side.

Read more about EnvelopeOverview, Manufacture, Mailers

Other articles related to "envelope, envelopes":

Envelope - Mailers - Padded Mailers
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... The prototype was built in 1915 by using the envelope from the No ... The envelope was composed of rubber-proofed fabric that was also doped to hold the gas and resist the effects of weather, and had a distinctive trilobe shape in which the two ... The trilobe envelope allowed the gondola to be hung closer to the envelope, reducing the overall height of the aircraft and slightly reducing head resistance ...
Lebaudy Patrie - Design - Overview
... of the Patrie, like those of its predecessor, were the envelope (or "gas-bag"), a nickel-steel frame or keel, and a gondola suspended from the frame on steel cables ... Contained within the envelope was a ballonet, the function of which was to ensure that sufficient gas pressure was maintained in the envelope at all times ... Between the frame and the envelope and linking the two was a small hemp net ...
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... The envelope of the experimental prototype had a volume of 20,500 cu ft (580 m3), but production models used a 60,000 cu ft (1,700 m3) envelope of similar shape that provided a ... Each of the SS versions used similar envelopes that were composed of four layers two of rubber-proofed fabric with a layer of rubber between them, and a further rubber ... to it to protect it from the elements and to render the envelope completely gastight ...

Famous quotes containing the word envelope:

    Life is not a series of gig lamps symmetrically arranged; life is a luminous halo, a semi-transparent envelope surrounding us from the beginning of consciousness to the end.
    Virginia Woolf (1882–1941)

    ... all my letters are read. I like that. I usually put something in there that I would like the staff to see. If some of the staff are lazy and choose not to read the mail, I usually write on the envelope “Legal Mail.” This way it will surely be read. It’s important that we educate everybody as we go along.
    Jean Gump, U.S. pacifist. As quoted in The Great Divide, book 2, section 10, by Studs Terkel (1988)

    Geroge Peatty: I’m gonna have it, Sherry. Hundreds of thousands, maybe a half million.
    Sherry Peatty: Of course you are, darling. Did you put the right address on the envelope when you sent it to the North Pole?
    Stanley Kubrick (b. 1928)