US1052322A - Envelop. - Google Patents

Description

W. F. CROWELL.

ENVELOP.

APPLICATION FILED MAR. 28, 1912.

Patented Feb. 4, 1913.

3 SHEETSSHEET 1.

I WITNESSES l? INVENTOR Z WZZz'amZ a'owell ATTORNEYS W. F. GROWELL.

ENVBLOP.

APPLICATION FILED MAR. 28, 1912.

1,052,322. Patented Feb. 4, 1913.

3 SHEETS-SHEET 2.

WITH/E8858 INVENTOR ATTORNEYS ENVELOP.

7 Specification of Letters Patent.

Patented Feb. 4, 1913.

" Application filed March 28, 1912. Serial No. 686,823.

To all whomvit may concern:

ing paper material in the manufacture ofthe envelop, dispensing with the use of special dies to form the blanks, and allowing the formation of envelops of different 7 sizes from a sheet of the same width.

For the purpose mentioned use is made of a blank formed of a strip of paper or other envelop material of a uniform width and provided with means to form foldable sections adapted to be fastened together so as to produce a sectional front and a sectional back.

A practical embodiment of the invention is. represented in the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding .partsin all the views.

Figure 1 is a plan view of a blank for forming .the envelop; Figs. 2 and 3 are like views of the same showing the successive steps in folding the sections; Fig. 4 is a front face view of the envelop with the sealing flap in open position; Fig. 5 is a rear view of the same; Fig. 6 is a like view of the envelop after being sealed; Fig. 7 is an enlarged cross section of the same on the line77 of Fig. 5; Fig. 8 is a plan view of a modified form of a blank for forming an envelop Without the sealing flap; Fig. 9 is a like view of the same partly folded; Fig.-

10 is a face view of the envelop formed from the blank shown .in Figs. 8 and 9; Fig. 11

is an enlarged cross section of the same on the line 11-11 of Fig. 10; Fig. 12 is a perspective view of one of the lower corners o the envelop prior to folding the parts into final position; Fig. 13 is a cross section of the same on the line 1313 of Fig. 10; Figs. 14, 15 and 16- are plan views of blank strips from which the blanks are cut for making envelops of different forms; and Figs-17, 18

and 19 are rear face views of the envelops produced from the blanks shown in the corresponding Figs. 14, 15 and 16.

The envelop is formed from a blank A of uniform width and folded along the lines or creases or scores B- arranged to form triangular sections C, D, E, F and G, of which the section C forms the sealing flap and the sections D and F form the front of the .en- 'velop while the sections E and G form the back of the envelop on folding. the parts as indicated in Figs. 2 and 3. In order to permit convenient folding along the lines B indicated and to provide overlapping edges the top and bottom edges of the blank A are pgovided with notches H, H, and a similar 11 tch H is arranged in the bottom edge of the blank A at the points indicated in Fig. 1 and the lower corners are cut ofi as shown at H and H. The sealing flap C is provided with gummed'margins I and the section F is provided with; a gummed margin I, and a similar gummed margin I is formed on the section G, so that when the parts are folded the section F overlies the section D and is fastened thereto by thebe sealed by the sealing flap C in the usual manner.

The blanks A are cut from a continuous strip of paper and the creases may be differently arranged, as will be readily understood by reference to Figs. 14, 15 and 16, to form envelops of different shapes and sizes (see Figs. 17, 18 and 19 without varying the width of the strip mm which the blanks are cut. It is understood that in either case the envelops are formed in the mannzer above described in reference to Figs. 1 to In the modified form shown in Figs. 8 to 13, use is made of a blank A of uniform width throughout its length, and the blank is provided with creases B to divide the blank into sections J, K, L and N, which when folded form an envelop having a se'c-- tional front and a sectional back, the secf tional front-consisting of the sections N and K, and the sectional back consisting of the sections L and J. The section N is .provided with a gummed margin 0 for fastening the overlapping edges of the sections K and N together, and, the section J is provided with a gummed margin G for fastening the overlapping edges J and L together, as plainly mdicated in the drawings. In this case, the sealing flap previously escribed in reference to Figs. 1 to 7 is dispensed with and the envelop is openat the to instead of providing the blank A with notches, the innercorners of the envelop may have the portions K and L of the sections K and L doubled up, as plainly indicated in Figs. 10, 12 and 13, so as to provide strong reinforced corners.

, From the foregoing it will be seen that in either form of'the envelop the front and the back of the-envelop are made in sections fastened together, and the envelop is pro duced from blanks cut from strips of paper I of uniform width without wastlng any of the paper material- It its understood that in practice 7 the blank is folded in the manner described by a suitably constructed folded machine.

Having thus described my invention, I claim as new and desire to secure by LettersPatent:

1. An envelop, comprising a front made i of sections fastened together along overlapping diagonal edges, and a back made of sections fastened together along overlapping diagonal edges.

2. An envelo com rising a front made of two sections astene together along overlapping diagonal edges, a back. made of two sections fastened together along overlapping diagonal edges,,-and a sealing flap integral with one of the front sections.

3. An envelop formed from a rectangular sheet of paper and comprising a front having two triangular sections fastened together along overlapping diagonal edges, and aback having two triangular sections integral with the said front sections and fastened together alongoverlapping diagonal edges.

4;. An envelop formed from a rectangular sheet of paper and comprising a front having two triangular sections fastened together along overlapping diagonal edges; a back having two triangular sections integral with the said front sections and fastened together along overlapping diagonal edges,

1 and a sealing flap'integral with one of the

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