US453892A - parkhurst - Google Patents

Description

(No Model.) 2 Sheets-Sheet I.

' J. H. PARKHURST.

ENV-ELOPE.

Patented June' 9, 1891.

mncmse (VNO Model.) 2 Sheets-Sheet 2. J. H. PARKHURST.

BNVBLOPE.

No. 453,892. Patented June 9, 1891.

. leted by the postal clerk.

UNITED STATES ATnNT Fries.

ENVELOPE.

SPECIFICATION forming part of Letters Patent No. 453,892, dated June 9, 1891.

Application led December 19, 1.890. Serial No. 375,282. (No model.)

To @ZZ whom t may concern.-

Be it known that I, JOHN H. PARKHURsT, a citizen of the United States, residing at Tashington city,in the District of Columbia, have inventedcertainnewandusefullmprovements in Envelopes; and I do hereby declare the following to be a full, clear, and eXact description of the invention, such as will enable others skilled in the art to which 'it appertains to make and use the same.

My invention relates to an improvementin the envelope patented to me November 18, 1890, the Letters Patent therefor being numbered 440,650; and the nature of the same will be fully understood from the following description and claims, in connection with the accompanying drawings, in Which- Figure l is a plan View of the rectangular strip of paper as cut and gummed, from which the envelope is made. Fig. 2 is a similar View of the same after one fold has been made. Fig. 3 is a similar view of the same after the secondfold. Fig. 4 is a similar view after the third fold and after the edges of the envelope are stitched, this view illustrating the envelope as formed with a package receptacle or chamber and a pocket and ready for delivery to the post-ofce for use.Y Fig. 42% is a section of the envelope, as shown in Fig. 4, on the line Fig. 5 is a plan of the envelope as it appears after the sealing-Hap has been eye- Fig. 0 is a similar vieW to Fig. 5, showing the opposite side of the envelope; and Fig. 7 a like view7 with the eyelets omitted and it being stitched at the end. Figs. 8, 9, 10, 11, l2, and 13 shoW the envelope represented in Fig. 4 as made from a strip provided with side-sustaining iiaps or wings .which fold under the sealing-flap proper in the manner illustrated in Figs. 11 and 12.

The strip of paperA (shown in Fig. l) is of rectangular form and gummed at CL and a', and it may also be gummed at the edges. To make the envelope from this strip of paper, aportion of the paper is folded on the line a3 over upon an intermediate portion of the strip of paper. .At this stage a slot ai is made through the doubled portion of the strip, and this done a little more than one-half of this slitted portion'is folded back on the line c4, as indicated in Fig. 3, thus forming a narronT sealing-flap portion h, which extends beyond the fold a3, as plainly indicated in Fig. 45%, the extension serving for forming a flap, which servesl with the eyelet for sealing both the chamber and pocket of the envelope When the envelope is ready for being mailed. The fold illustrated in Fig. 3. forms apooket M for the various uses set forth in my aforesaid Letters Patent and need not be more particularly de- 6e scribed here. After the pockethas been thus formed the portion a5 of the strip of paper is folded on the line a over upon the portions a7 and as, for the purpose of forming the letter receptacle or chamber n, as illustrated 1n 65 Figs. 4 and 42%, and thereupon the envelope is stitched through its edges, as indicated at c, which operation completes the envelope.

I contemplate applying on the surfaces of the folded portions of the strip of paper a 7o light cotton or other .tiexible re-enforcing fabric, as illustrated at d in Fig. 3. The sealingflap b is secured by the gum at a', the ap being folded over, as illustrated in Fig. 5, and further safety secured by eyeleting at f. Entrance into the pocket after the envelope has been eyeleted is facilitated by the slit a2, and to insure cutting ona straight line on either side of this slit to the edges of the envelope fine perforations, as indicated at g, may be 8o provided. By this provision for getting into the pocket without breaking the eyeleted seal of the envelope great safety as Well as convenience is afforded in getting at the cards or other indices relating to the con tents of the 8 5 eyelet-sealed envelope.

The envelope described may be strengthened by making it with side Wings A', and the said wings,if used, may be folded as illustrated in Fig. 11 and covered by the portion 9o (t5. In all other respects the envelope shown by the figures running from 8 to 13 will be the same as the envelope hereinbefore described.

By my invention cheapness in the manufacture of the envelope is secured, and at the same time it is impossible when the safetystitching and eyeleting provisions are adapted to get at the valuable contents of the envelope by steaming or moistening the edges roo and sealing-hap, and at the same time all necessity for opening the sea.lingilap,which,oon

jointly with the eyelets, seals both the envelope-chamber n and the pocket m., in order to get access to the indicating cards orlabels 1n the pocket is avoided, and thus a great need in the postal service is supplied.

Vhat I claim as my invention isl. The within-described postal envelope, formed with a package-receiving chamber and with a pocket made from a strip of paper or other fabric, said strip oii paper being folded on the lines as, a4, and d and forming' a scal- 1ng-ilap l), the strip of paper being;` `:rumlned at d and the meeting surfaces of the folded portions being united iu any suitable man- 11er, preferably by stitching, andthe chamber and pocket sealed in any suitable manner, preferably bythe Iiap I) and eyelets, substantially as described.

2. The within-described envelope, formed with a rceeiving-ehamber and a pocket, said chamber being' sealed by the llap l and both the pocket and chamber secured by eyelets, and the Said envelope provided with a slit (1,2 out of line with the means employed forsealine the Ilap, substantially asdescribed.

23. A postal envelope formed of a strip of paper folded. as ata and secured at its edges by stitching through the folded paper, substantially as described.

l. An envelope formed of a strip of paper which is folded on lines a, (0*, and a and stitched at its long parallel edges, substantially as described.

In testimony whereof I hereunto afiix my signature in presence of two witnesses.

.TouN u. iuminnus'r.

Witnesses:

Il'. B. ZEVELY, Il. J. FTNLEY.

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