US1511886A - Safety envelope and blank for making the same - Google Patents

Description

Oct'. 154, 1924.

PM-ENT; orFica.

inentingen L. nlnet-traen, vor BROOKLYN, nsw-vonk,

Saarl-Y www@ AND 13T-Antros Meme Be it known that 1,

citizen of the United States, re' siding at Brooklyn, in the county of.

MAN,

Applies-titane@ retmary 1e, 1923.

concern MoRTrMnn L'. Hmonkings and State of NewYork, haveinvented new and useful Improvements in Safety Envelopes and Blanks fo which the following is Making the Same, of

a specification.y

This invention relates to envelopes.

More particularly,

the invention relates to envelopes of the kind disclosed in United States Letters Patent Nos.` 598,290, 641,291,

717,993, 780,883, and 1,351,851, granted to Some of the objects of the tion are: to improve envelopes of the kind mentioned by simplifying the same without sacrificing of the factor of safety hitherto attained; to produce a blank for making a safety envelope which is of su-ch form and construction as to facilitate the formation of an envelope in Vthe despatchV of a letter; to p-roduce absolute proof again ful disregard of the an envelope which is st persons having a willrights of another; and

with these and other objects in view the invention resides in of forming an envelope,

the particular manner the overlapping relation of parts and the functions of features thereof hereinafter lustrated in the accompanying which Figure 1 is a view of the envelope-blank fully described and ildrawing, in

of the present invention.

Figure 2 is a view showing two of the back folds folded over.`

Figure 3 is a view showing the formed envelope opened.

Referring now more particularly to the several views of the drawing, cially Figure 1, it Will be blank is made first, from which the envelope V blank 10 hasall ently described, envelope.

and espeapparent that a as the blank 10, 11 is made. The

such

the attributes, to be presfor the making of a safety The blank 10' is made from a single piece of material of any kind, and 1n fact is stamped out vide a front fo-ld 12,

front fold 12, and 15 on the front embodies a partly of the material to proa seal flap 13 on the ' back folds 14, 14, and

fold. The front fold 12 severed portion 16 by virtue of the perforations 17 and 18, Whereas, the seal flap severed portion 19 13 embodies a partly lby virtue of the perfold and the seal flap'lv present invene7, 27, and es.

THE' SAME.

Sieriall No. 6-1-9 ,477.

v14. IThe back fold 15 is at the side of the front fold opposite the seal flap. The fold 15 has a line of perforationsv 23 and a line of perforations 24, thusv providing the fold 15 with perforations ralong the free edges thereof.y The marginal :portion of the seal flap between the perforations thereof and its free edges is ginnmed as at 25. The

marginal portions of the backfold 15 between the perforations jacent free edges are gummed as at 26. rl`he back folds 14, 14, and 15-are folded overl the front fold respectively on the fold lines To form anenvelope the back folds 14, 14, are first folded over the front fold 12, and then the back fold 15 is folded over the back folds 14,14, and that of course is done after the gummed portions 26 have been moistened.

substantially mid-Way of the gummed vportions 26 longitudinally seal flap 13 is brought 'nto sealing relation with portions of the back folds inthe despatch of a letter after the moistening of the gummed portion 25, ythe perforations 21 of the back folds 14, 14, will lie substantially mid-way of the gummed portion 25. v

It will now be manifest that, due to the overlapping relation of the several folds and the disposition of the perforations therein, it will bel Well night impossible to steam the seams without permanent destruction of por.- tions of the folds at the points steamed; that pointed instruments willo-nly pick up .the portions at the seams because of the perforation's; `and that the addressee byv moistening the perforations portion 16 or the portion 19 to roll the same as'shown in Figure 3 for the opening of the envelope. y. 1 What is claimed is: n 1. A blank for making a safety envelope comprising a front fold, back folds, a seal thereof and the ad- 17 may thumb the Y Under the relation of the back l folds the lines of perforations 22 Will vlie thereof. When the y formed to eifect an entry Hap, a partly severed portion embodied loy the fro-nt fold and the seal flap, the marginal portion of said seal flap being gummed, and each of said hack folds provided With a plurality of free marginal edges and having perforations along said edges.

2. A blank for making a safety envelope comprising a front fold, yback folds, each of which is provided With a plurality of free marginal edges and having perforations along said edges, one back yfold at each end of the front fold and at one side of iap at one side of severed portion in the seal iap, the severed portions being the front fold7 a partly the front fold, a seal the front fold and inl adjoined, and the seal flap having a .marginal gummed portion. l

8. An envelope Comprising afront fold,

bank folds each of which is provided with a plurality of free marginal edges and having perforations along `said edges and portions of one yback fold loverlapping portions respectively of the other haelt folds, and

a seal Hap on the front fold having-,marginal MORTIMER L. HINCHMAN.

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