AN IMPROVED AD- VERTISING ENVELOPE, AND COMBINED LETTER PAPER
Year: 1873

page_text: LETTERS PATENT to Jean Baptiste Delavault, of No. 82, Boulevard
Sébastopol, Paris, France, for the Invention of "AN IMPROVED AD-
VERTISING ENVELOPE, AND COMBINED LETTER PAPER."
Sealed the 19th May 1874, and dated the 4th December 1873.
PROVISIONAL SPECIFICATION left by the said Jean Baptiste Delavault
at the Office of the Commissioners of Patents, with his Petition,
on the 4th December 1873.
+
I, JEAN BAPTISTE DELAVAULT, of No. 82, Boulevard Sébastopol,
Paris, France, do hereby declare the nature of the said Invention for
"AN IMPROVED ADVERTISING ENVELOPE AND COMBINED LETTER PAPER," to be as
follows :--
The object of this Invention is to combine in one single piece both.
the envelope and the letter paper to prevent clandestine opening or.
withdrawl of the contents. This is effected by cutting the paper in a :
peculiar form, the folds being so arranged that when closed there is no
perceptible change in the external appearance..
:

page_text: The interior of the envelope may be employed for advertising purposes
by having small tablets or squares printed thereon, each one to contain
an advertisement.
The correspondence sheet may be of any desired size in accordance
with that of the envelope, the folding being readily arranged for the
purpose.
The accompanying Drawing shows an envelope embodying my In-
vention.
A is the correspondence sheet when the envelope is seen unfolded;
B, C, D, E, are the advertising squares; F, G, and H are the usual
flaps.
The sheet A. may be three and four times as large as that represented
in the Drawing, which is supposed to be an ordinary sheet of note
paper, and the reverse side may be employed for advertising; or both
the envelope and paper may be blank, as desired. a, a, is the gummed 1
side, the dotted lines represent the folds.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Jean Baptiste Delavault in the Great Seal Patent
Office on the 21st May 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JEAN
BAPTISTE DELAVAULT, of No. 82, Boulevard Sébastopol, Paris, France,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fourth day of December, in the year
of our Lord One thousand eight hundred and seventy-three, in the
thirty-sixth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Jean Baptiste Delavault,
Her special licence that I, the said Jean Baptiste Delavault, máy
executors, administrators, and assigns, or such others as I, the said
Jean Baptiste Delavault, my executors, administrators, and assigns,
should at any time agree with, and no others, from time to time and
at all times thereafter during the term therein expressed, should and
lawfully might make, use, exercise, and vend, within the United King-

page_text: dom of Great Britain and Ireland, the Channel Islands, and Isle of
Man, an Invention for "AN IMPROVED ADVERTISING ENVELOPE AND COMBINED
LETTER PAPER," upon the condition (amongst others) that I, the said
Jean Baptiste Delavault, my executors or administrators, by an instru-
ment in writing under my, or their, or one of their hands and seals,
should particularly describe and ascertain the nature of the said In-
vention, and in what manner the same was to be performed, and cause
the same to be filed in the Great Seal Patent Office within six calendar
months next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Jean Baptiste Delavault, do hereby
declare the nature of my said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement :-
The features of novelty in this Invention consist in the combination
of an envelope and sheet of letter paper cut in one piece, the advan-
tages of the system being the security of the correspondence from
clandestine opening or accidental loss of the contents, whilst at the
same time from the peculiar formation and folding of the envelope
the interior is available for advertising purposes.
Fig. 1 represents a plan of an envelope embodying my Invention,
the dotted lines indicating the folds; one of the sides a is gummed.
E is the envelope; F, the sheet of letter paper for the correspondence,
whilst the letters A, B, C, D, H, I, J, are printed spaces to be occupied
by advertisements; Fig. 2 represents a back view of the same; and
Figs. 3 and 4 show the envelope closed; K, L, M, N, O, P, are the
advertising spaces. The form and dimensions of the envelope would
naturally vary, and the size of the sheets would be in proportion thereto,
and folding several times, as shown by Fig. 5; and in order to prevent
the possibility of the correspondence being overlooked by the supposition
on opening the envelope that it was merely advertisement, the letter
sheet is so arranged, cut, and folded that immediately on opening the
envelope a part of the written correspondence is visible; this will be
apparent on reference to Fig. 5. E represents the envelope; F, the
sheet of letter paper, which when written on the side A, B, folds from
A to A', and the side D, C, folds to C, C¹, leaving a space H, K, between
the two extremities of the sheet showing the writing. By this system
of manufacture all available space can be employed for advertisement,
whilst the ordinary correspondence is not interfered with.

page_text: Although specially constructed as described for both correspondence
and advertisement, I may dispense with the advertising, making the
envelope of plain paper; but in both cases one of the essential features.
of the Invention is the security of the contents from removal, with .
the advantage that the paper and envelope being in one piece the stamp
or post mark is retained with the letter as a record of date of postage, .
and place of departure of the letter.
Having thus described my Invention, what I claim is, the combined
envelope and letter sheet, the latter being folded in two or more folds,
as required, the available space being employed for advertising purposes, 1
in the manner illustrated by the accompanying Drawings..
In witness whereof, I, the said Jean Baptiste Delavault, have here-
unto set my hand and seal, this Nineteenth day of May, in
the year of our Lord One thousand eight hundred and seventy-
four.
1
J. B. DELAVAULT. (L.S.)
E. HÉBRÉ.