US 1734642 A
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Nov. 5, 1929. O J. OLM
ENVELOPE AND PORTFOLIO Filed July 19. 1926 2 Sheets-Sheet 1 INVE IVTOP? SCAR J.OLM,'
NOV. 5, 1929. I O J, OLM 1,734,642
ENVELOPE AND PORTFOLIO Filed July 19, 1926 2 Sheets-Sheet 2 FIG. 5
Patented Nov. 5, 1929 UNITED STATES gATENT OFFICE OSCAR J'. OLM, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR T QUALITY PARK EN- VELOPE COMPANY, OF ST. PAUL, MINNESOTA, A CORPORATION OF MINNESOTA ENVELOPE AND PORTFOLIO Application filed July 19,
type of construction where heavy kraft paper is used or wherein the body of the same ismade of a particular paper, having a wear resisting material and is adapted to be used for filing records or where the envelopes are used for a long period of time and are adapted to form an enclosure to protect the papers and articles therein.
A feature of the invention resides. in a rethe upper folding edge of the same.
inforcing means extending over the folding lines or edges of the envelope or portfolio so that the heavy material from which the same are formed will not crack away and 20 break with'constant use and the folding back and forth along a particular line.
I accomplish my invention in a very simple, yet highly effective manner by extending the lining of the envelope, portfolio or file beyorlid n this manner, a double reinforcement is pro vided which prevents the files from cracking or brealdng off along the folding line.
These features, together with other de- 3 tails of construction of my invention will be more clearly set forth in the specification and claims.
In the drawings forming part of this specification:
Figure 1 is a perspective view of an envelope or file as it would appear in use, carrying out my invention formed therein.
Figure 2 is an enlarged perspective detail of a portion of my envelope, file or portfolio wherein the structure is clearly illustrated.
Figure 3 is also an enlarged detail of my invention showing the parts in a partially open position.
Figure 4 is an enlar ed vlew of a partlcular form of file envelope aving large upwardly extending flaps with my invention carried out therein.
Figure 5 is an enlar ed detail of the file envelope illustrated in igure 4. r
In the drawings, my envelope, portfolio or 1926. Serial No. 123,339.
file envelope is designed to provide a closure A and is particularly adapted to the style of closure wherein the sides 10 and 11 are made of heavy kraft paper or paper material hav; mg a considerable wear-resisting nature.
Files, envelopes and portfolios of this nature are used to keep papers and other articles in and they are also used very extensively so they must be made to withstand the wear and constant use. l
In the form of myxfile, envelope or portfolio illustrated in Figure 1, the ends and bottom are formed with a folded cloth construction to provide a bellows-like wall 12 which permits for expansion of the envelope, file portfolio or wallet A to receive articles to be held in the same and to permit the same to expand readily as the contents of the envelope or wallet is increased.
These folding walls 12 also permit the envelopes A to be used conveniently with only a small number of articles in the same and the shape of the walls tends to form grooves into which the papers can slide and be held.
In the use of these wallets or envelopes A, it is preferred to make the walls 12 of cloth and the ends 13 of the same are adapted to be secured by means of the liner 14 which is securely pasted to the inside of the wall 10 and the liner 15 which is securely pasted to the back wall 11. 7
My invention particularly includes the exextends along the upper edge of the envelope or wallet A and which connects the closing flap B of the envelope A with the wall 11.
In fact, the closing flap-B is an integral part with the wall 11 and it is adapted to be scored along the line 17 and also the line 18 which extends in parallel relation to the score line 17.
The score line 17 of the wallets or envelopes A is positioned directly at the upper edge of the same. As the flap B is used, the folding of the same back and forth has a tendency to break ofl' the flap along the score line 17. By means of my extension flap'16, which is an integral part with the lining 15 of the portfolio or envelope and wallet A, the flap B is reinforced along the score line 17 and along each of the score lines 18 so that the life of my envelope or file A is greatly extended and in fact, I have found that the increased value of the holder A, by reason of the'long wear-' ing quality of'the same, due to the extension 16, is to such an extent as not to be compared with the old construction where the flap 16 isnot used.
It will be readily apparenhthat in using the portfolios or envelopes A, the flap B is opened and closed many times and heretofore the flaps would break off along the score line 17, or particularly owing tothe stiffness and firmness of the qualityuof the paper used and; required in articles of. this "However, now, with my reinforced flap and extension ortion 16, which is adapted'rto practically orm an integral part with the closure flap B, flap B is reinforced at the point where it w 1 receives the most wear and thereby increases the life and 'use of thewhole envelope or wallet and file A.
In Fi res ii-and 5-, I have illustratedthe I file enve ope A which is of the same general construction as the envelope and wallet A illustrated in the other figures, excepting that this file is provided with two upwardly extending integral flaps 19 and 20. Flaps 19 and 20' extend from, and are an inte a1 part of the sides 21 and22 which are similar to the sides 10 and 11, hereinto before described.
In this form of m invention which provides an ex audible e A, the flap 20 forms the front ap and is secured along the line 23, while the lining which holds the edge of the wall 12 is formed with the extension 24,
adapted to extend u over the point of scor-.
in on the line 23 an thereby providing a rein orcin means on the inside of the envelope or file, w ich prevents the breaking oif of the flaps 20, even though it is used very extensively.
' In this form of the invention, the flap 20 is folded down or pulled forward to open the file and the stiffness of the body of the file causes the flap to fold sharply along the score line23.
It is to be considered that the sides 10 and 11 and 21 and 22 of my enclosure A are formed of comparatively "stiif, rigid paper having a long wearing nature. In making my enclosure A, I- prefer to have the reinforcing 2 lining suchas 15 carr ing the flap 16 and the portion having the 4 ap or member 24 with the grain of the same extending in an o posite direction to the grain ofthe outer si e wall and closure fla to which these parts are secured. In ot or words, it is desirable to have the grain of these materials run in just the opposite direction to each other so that one may reinforce the other and thus, the reinforcing flaps 16 and 24 are adapted to strengthen the side or closure flap of the container A so that the same will noteasily break off along the score lines 17 and 23. In fact,
when the grain is run in this manner it 1s the score line without considerable"- does not give the firmness and rigidity to the structure to say nothing of the more expensive construction if a textile material is used to reinforce the closure flap.
By means of my reinforcing member within the file and extending up over the score line 23,,the flap 20 is reinforced to the extent of f lpreventing'it from breaking off "along the score line 23 and also to give it more rigidity and firmness in use.
I The simplicity of the invention is apparent and the principal feature as has been set forth is in providing the reinforcing flaps or por- ,I
folios or wallets will be. reinforced at a oint Where they have been found to break 0 very easily after they have been used for some time.
While this feature may appear of an extremely simple nature, yet it-is that important as to have clearly been found more practical and advisable to make these envelopes and articles with thisreinforcing means which are tions 16 and 24 so that the envelopes and port- I much to be preferred over the former con- A struction.
These files are made strong and of very good material, therefore, the body of the same Will stand long, hard wear. It is then apparent that if the flaps for the same are not made in a manner to wear in proportion to the body. of the receptacle A, a considerable loss would be the result if the containers A must be discarded when the flaps are broken away, and these are the facts in regard to thiscontainer, therefore, the importance of my reinforcing means at the scoring and. bending point of the containers, is highlyv important.-
In accordance with the patent statutes, I have described the principles of operation of my container, and while I have illustrated a particular formation and construction in the drawings, I desire to have it understood that these illustrations are only suggestive of.a' means of carryin out my invention. I desire to have it un erstood that the container may be carried out by other means and within the scope of the following claims.
1. An expandible wallet envelope and file having a body portion formed of stifi paper, end and bottom folding walls formed of cloth, a closure flap extending from one of the side walls of said envelplpe, a scoring line along the upper edge of sai envelope to permit the closure flap to be opened easily, a
I bellowed-like end and bottom portion to permit the side walls to move in comparatively parallel relation to each other in the expansion of the container, a closure member extending integral from one of the side Walls, a scoring extending through said closure to permit bending of the same and a reinforcing lining portion extending over the scoring of said closure with the grain of the lining extending in an opposite direction to the grain of the closure and side wall to reinforce the same and prevent breaking on the scoring.
' OSCAR J. OLM.