US 1692219 A
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Nov.- 20, 1928.
L. MEDVECZKY ENVELOPE AND OTHER ARTICLE OF PAPER Filed Nov. 17, 1926 a grade of perfection Patented Nov. 20, 1928.
UNITED STATES PATENT OFFICE.
LADISLAW HE'DVECZXY, 0F BAIOSHEGY, HUNGARY.
ENVELOPE D 'IEEB .ARTICLE OF PAPER.
Application lbd November 17, 1926, Serial No 148 960,
vMy invention relates to envelopes and other articles of paper having sealing edoes, such as Wrappers for packets, sealing lab The obj ect of the invention is to prevent surreptitious opening or'unfastening.
It has been proposed to provide the sealing edges of envelopes with perforations, incisions or indentations with a view to increase the tenacity of adherence and to get visible traces of a surreptitious opening. The insuficient sa-eness thus obtained is increased to by the improvement whlch is my invention and consists in providing the sealing edges with incisions so formed as to result in a plurality of strips entirely separated'from the body of the envelope or other article and temporarily cohering to a margin the incisions but will be after the strips resulting removed or severed from the. lncisrons that the incised edge sealed down will contain a plurality of Astr1 s independent of one another as well as of t e body of the envelope or other article.y
These entirely -independent strips, which make the characteristic feature of my invention, aiord'such a grade o fl safeness against surreptitious opening as was, hitherto, unattained.
.The invention is illustrated, by way of example, in the accompanying drawings in central-field, or with the intact body Fig. 1 represents the blank of an envelope made in accordance with the invention;
Fig. 2 shows the asame and with the closing flap open; l Fig. 3- shows the b ack of the closedenve- -ope.
The blank as shown in Fig. 1 consists of the central field a-b-C-d, the back ilap -ed to be oldedupon the former, the side aps a-g-lff-c and b'-fi-c-d, and the closing ap'L-m-b--a In cutting out the blank, or in a subsequent punching operation, I providethe side flaps and the closing flap with incisions so formed as to divide the said naps, or such portions-thereof as will be sealed down, into two sorts of narrow strips?? theide edges 6 of the a s as well longitudinal margin 9 on eac -iiap bem left intact: The strips 7 remain integral wit the n rtions o'f the 'flaps inside the incisions, w ile the stri s 8 are entirely separated from the body lofjt ve envelope, temporarily cohering, 110W-,
margins ter the strips 7 and 8 have stuck fast. As
which is left intact outside blank foldedfor use and 8 projecting between each other, 'I
from said body portion a and in Hungary November 21, 1925.
to the margin 9 which is connected through the intact side edges 6 with the body of the envelope. In the drawings, the strips 8 separated :from the body of the envelope but temporarily held together by the margins 9 are distinguished by shading. f Gum is applied to such portions of the back flap as will be covered by the incised portions of the side iiaps and the closing flap, respectively, in folding and closing the envelope. Prior to sealing down the side flaps, their 9 are turned down to be severed afever,
an article of trade, the envelope carries the turned down margin 9 on the closing flap only,'preferably in the width of the incised portion of the closing iiap in order to serve as a protective cover for the strips 7 and 8 vhen they are stroked in closing the enveope.
In anfattempt to open the closed envelope by loosening or unfastening the strips 7, it is inevitable to loose or unfasten also the independent strips 8 which curl under the iniiuence of the heat and moisture applied or, at least, get out of place so that no eort or precaution can accomplish to get the unfas'- dence of the misdeed.
vFor the sake of simplicity, I have illustrated the strips as of equal form and length, but the 1nc1s1ons can with undulating or branched' strip ferent length, always, however 1n such a manner that the margin 9 having been severed many preferably filling in the spaces between other strips which cohere to the body of the envelope.
It will be understood that m invention is not limited to envelopes and t e be Aequally applied for the safe sealing of packets, boxes or other receptacles, the sealing ed es of the covering or, if se aate sealing la ls are used, the edges o the latter bein divided in accordancewith myinven.- tion into strips such as 7 and 8 inside a marginI such as 9 which will be severed after the strips have stuck fast.
1. An article of paper consisting of a body ortion havingsealing incised borders and mtact margins outside lsaid incised borders, the incisions being so formed as to separate lurality of strilps temporarily` connected wi one another be made after various desiis' s of 'fnarrova strips remain .isolated same may said margins but becoming independent of one another when said margins are cut olf.
2. An article of paper consisting of a body portion, divided sealing borders, and intact margins outside the latter, said divided borders comprising a plurality of strips separated from said body portion and temporarily connected with one another by said margins but becomingindependent of one another when said margins are cut off.
3. An article of paper comprising a bod portion, sealing borders divided into two sets of strips, and intact margins outside.
said divided borders, said ystrips cohering one set to said body portion and the other set to said margins, the individual strips 'of the latter set becoming entirely independent when said margins are cut o.
4. An article of'paper comprising a body portion, sealing borders divided into two sets of strips, and intact margins outside saiddivided borders, said strips cohering one'set to said body portion and the other set to said margins, the individual strips of the latter set becoming entirely independent when said margins are out oi, and the strips of one set filling in the spaces between the strips of the other set.
5. An envelope consisting of a central field, aback flap folded upon said central field, two side flaps having divided edges stuck on said back flap and comprising a plurality of entirely independent strips, and a yclosing flap provided with incisions inside an intact margin, said incisions forming a plurality of strips cohering to said margin but separated from the other portions of said closing flap.'
In testimony whereof I hereunto aflix my signature.