US586115A - Envelop - Google Patents

Description

(No Model.) i 2 Sheets-Sheet 1. B. G. BUTTON.

ENVELOP.

v NG- 586,115. Patented July 13, 1897.v

' (No` Model.) 2 Sheets-Sheet 2.

. B. G. BUTTON.

BNVBLOP.

No. 586,115. Patented July 13, 1897.

UNITED STATES PATENT OFFICE.

BENJAMIN GRAVES BUTTON, OF AURORA, ILLINOIS.

ENVELOP.

SPECIFICATION forming part of Letters Patent No. 586,115, dated July 13, 1897.

Application filed April 15, 1896. Serial No. 587,712. (No model.)

To @ZZ whom t may concer-n:

Beit known that I, BENJAMIN GEAvEs BUT- l TON, a citizen of the United States, residing at Aurora, in the county of Kane and State of Illinois, have invented a new and useful Envelop, of which the following is a specilication.

My invention relates to envelops, and has for its object to provide means for securing the same in all of its parts against tampering, the same being adapted to be fastened with facility.

Further objects and advantages of this invention will appear in the following description and the novel features thereof will be particularly pointed out in the appended claims.

1n the drawings, Figure l is a View of an envelop constructed in accordance with my invention. Fig. 2 is a perspective view showing the top or covering flap released and raised. Fig. 3 is a view showing the bottom flap folded outwardly from the end iiaps to illustrate the manner of threading the fastening-strip therethrough. Fig. 4 is a View of a slightly-modified form of the envelop with the bottom flap folded outwardly to illustrate the manner of arranging the fastening-strip.

Similar numerals of reference indicate cor-- the bottom flap in alinement, respectively,

with the inner slits or openings 5, and thus the portion of the strip between the slits 7 is exposed at the outer side of the bottom flap 2 and the portions of the strip between the slits 5 and 6 are arranged within the envelop or between the planes of the end flaps and the body portion of the envelop and are shown in dotted lines in Figs. 2 and 3.

When the fastening-strip is drawn taut after threading through the openings 5, 6, and

7, as above described, the envelop is arrangedas shown in Fig. 2, and when it is desired to close the same the top or covering flap 1 is folded over the bottom and end flaps and the end portions of the strip are carried over the extremities of the top flap and are threaded through the contiguous parallel slits or openings 8, formed in pairs near the ends of said flap. The extremities of the fastening-strip are adapted to be overlapped at the center of the top iiap, as illustrated in Fig. l, and secured by means of a seal, which may or may not extend through the body of the envelop, as desired.

It will be seen that the fastening-strip extends through each iiap of the envelop at two or more points, andinasmuch as the strip is continuous it may be manufactured at a small cost and separate from the body portion of the envelop.

v In themodified construction illustrated in Fig. 4 the fastening-strip 4, instead of being threaded through slits or openings in the inner ends of the end liaps and through the center of the bottom iiap, is preferably secured by means of pasteor adhesive material to the inner surface of the body portion of the blank, as indicated. The sides of the strip are extended through slits 6a near the outer ends of the end flaps and through corresponding registering slits 7EL near the extremities of the bottom flap. The extremities of the strip are engaged with the top or covering flap in the manner described in lconnection with the form of envelop illustrated in Figs. l to 3. In this, as in the preferred form of the envelop, the fastening-strip ex` tends through each of the flaps of the envelop, and an important advantage of this construction resides in the fact that the strip extends around the contents of the envelop and thus materially strengthens the envelop.

A cross-sectionally flat fastening-strip may be made of the requisite strength with. the minimum thickness, thus adapting the parallel slits,through which said strip is threaded, to be arranged with their extremities in common planes, whereby the front and rear sides of the strip may occupy positions with their corresponding (upper and lower) edges in common transverse planes without adding objectionably to the thickness of the pack= IOO age, and this arrangement of the strip is desirable in that it simplifies the application of the strip, enables it to be constructed of the minimum length, and avoids the risk of tearing out the slits or openings through which it extends.

An important feature of the construction above described resides in the fact that the fastening-strip in both forms of the envelop which are illustrated in the drawings engages the end and bottom flaps of the receptacle, its engagement withl the end Iiaps being at points beyond the terminal edges of the covering-lap, and then passes inwardly over said terminal edges of the covering-flap to hold said edges in contact with the end iiaps and prevent the same from being turned up. Said fastening-strip also engages the covering-Hap at intermediate points by passing through L vided near its center with slits oropenings 7 twin contiguous slits therein, and has itsextremities overlapped at the center of the covering-lap and in contact with its outer-surface and secured by a suitable seal.

Various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the spirit or sacricing any of the advantages ofv this invention.

Having described my invention, what I claim isl. An envelop having overlappin g top, bottom and end iiaps provided with openings, and a fastening-strip threaded through open,- ings in the end and bottom Iiaps, its points of engagement with the end flaps being beyond the terminal edges of the top ap, passing inwardly over Said terminal edges of the j top flap, engaging intermediate openings in thev top ap, and having its extremities overy with inner and outer slits or openings, abottom lap provided with slits or openings regl isteri-ng with the inner slits of the end iiaps, a top iiap adapted to fold over said end and bottom iiaps, and a fastening-strip threaded at its looped center through the registering slits or openings in the bottom and end aps, extending outwardly upon opposite sides of its center and through the outer slits of the end flaps, and folded inwardly and engaged at its extremities with the top flap, substantially as specied.

3. An envelop having abottom lapproend flaps provided with inner and outer slits or openings 5 and 6, the former of which register with the slits 7, a top flap provided with twin parallel slits 8, and a fastening-strip threaded through the slits 5, 6 and 7, passing around the ends of the top flap, threaded through the twin slits 8, and terminally secured to the exterior surface of the top flap, substantially as specified.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

BENJAMIN GRAVES BUTTON.

Vitnesses:

NATHAN C. SIMMONS, WM. C. Esrnn.

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