US532206A - klaber - Google Patents

Description

(No Model); v

A; D. KLABER.

ENVELOPE.

No 532,206. Patented Jan. 8, 1895.

' siding at Brooklyn, in the county of Kings,

U lT- D 1 TATES P T F QE AUGUSTUS. D. KL'ABER, orssooigLrmwAssienon TO THE NEOSTYLE COMPANY, OF NEW YORK, N. Y.

-ENVEl OPE.

SPECIFICATION forming part of Letters Patent No. 532,206, dated January 8, 1895.

' Application fi March 7,1894. Serial No. 502,609. (No model.)

To all whom, it mag concern:

Be it known that I, AUGUSTUS D. KLABER, a subject of the Queen of Great Britain, re-

State of New York, have invented a certain new and useful Improvement in Envelopes, of which the following is a specification.

My invention relates to an improvement in envelopes and consists essentially in an envelope whose edges are folded in the ordinary manner so that when a portion of the top flap has been secured upon the bottom flap and one of-the side flaps the article will have the appearance of the ordinary sealed envelope,

yet will be capable of being opened without tearing or cutting. This is especially desir able in envelopes designed to inclose matter for transmission through the mail. As is well known, the rate of postage upon sealed communications is considerably in excess -of that upon open communications wherein an envelope is used having a flap which may be opened at will. A great objection to the latter is that ordinarily it has the-conventional appearance of an envelope designed to contain printed advertising matter and such communications are frequently thrown aside as undeserving of consideration. A further objection is that they are liable to become opened during transmission through the mail. While this objection is not common to all envelopes of this kind, it is always present in those capable of manufacture at small expense. Thus, envelopes having an inadhesive flap have been used but it has been found necessary to detachably secure the flap in place by means of a metallic clasp or a string passingaround a disk. These forms can be produced only at considerable expense and are still objectionable inasmuch as they have not the appearance of a sealed envelope which, as has been shown, is desirable.

The object of the present invention, therefore, is to produce an envelope at very small cost, which may be readily opened, which shall closely resemble the ordinary sealed envelope in appearance and which shall securely inclose the matter placed within it.

In the drawings, Figure 1 is a view of an envelope blank ready to be folded. Fig. 2 is a similar view, the bottom flap and one side flap being folded and secured in position and theenvelope being ready to receive its contents. Fig. 3 is a similar view showing the envelope closed and ready for mailing.

Referring to the drawings, in which similar letters of reference denote corresponding parts, A designates a sheet of paper provided with a top flap B, a bottom flap C and side These sheets may be cut and folded in large quantities by machinery in the customary manner. As here shown, the flaps B, O, E, are approximately pointed at their free ends. This, however, is entirely a matter of taste and the form may be varied in any suitable respect. The flap D may be of any desired form. It should, however, be

sufficiently large to cover the space between the edges of the top and bottom flaps left open by their pointed form.

'In an ordinary envelope, it is customary to provide both the top and bottom flaps with mucilage in order that the latter will hold the side flaps in position and that after the inclosure the former may be moistened and secured upon all three. In the present invention, however, but one side of each of the top and bottom flaps is provided with an adhesive substance, as shown at b c. This'substance is preferably applied during the manufacture of the envelope and the flap E is folded upon the sheet and secured by the folding up of the bottom flap C as shown in Fig. 2. The flap D is folded in a manner similar to the folding of flap E but is not gummed. Its edge is turned in beneath the edge of the flap 0. The envelope is now ready for the market. When it is desired to use the envelope, the inclosure is placed within it in the usual manner, the mucilage or other adhesive substance I) is moistened and the top flap folded in position and secured, as shown in Fig. 3. It is difficult now to distinguish the envelope from placed upon the outside of the side flap E en-- tirely and none placed upon the top or botsubstantially as described. tom flap. This is whollya matter of conven- This specification signed and witnessed this ience. 6th day of March, 1894. 5 I claim- An envelope having a top flap, a bottom Witnesses: flap and two side flaps, said top and bottom flaps being provided with an adhesive sub- AUGUSTUS D. KLABER.

S. 0. EDMONDS,

W. PELZER.

stance on oneside of their inner surface only,

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