Improvements in Portfolios for Holding Engravings, Plans, Maps, and the like.
Year: 1895

page_text: PROVISIONAL SPECIFICATION.
Improvements in Portfolios for Holding Engravings, Plans, Maps,
and the like.
I, ARTHUR PASS, of 70 High Street, Barnstaple, in the County of Devon,
Artists' Colourman, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in portfolios for holding engravings,
plans, maps and the like, and has for its object to provide a portfolio of which the
containing capacity may be adjusted or varied at will to suit the thickness of the
articles placed therein, so that the said portfolio will hold and keep flat articles
ranging in thickness from that of a single sheet of paper to several inches, according
to the size of the portfolio.
According to my invention, the portfolio consists of two rigid leaves connected
with a base board, one leaf being preferably fixed thereto whilst the other leaf is
hinged to slides fitting freely within grooves formed in the said base board. The
containing capacity of the portfolio can thus be readily varied at will by sliding
the hinged leaf towards or away from the other leaf, said hinged leaf being
retained in the desired position by means of thumb screws arranged to clamp the
above mentioned slides. The said leaves would be provided with the usual hinged
legs for supporting the portfolio when opened.
Dated this 6th day of December 1895.
E. P. ALEXANDER & SON,
Chartered Patent Agents,
19 Southampton Buildings, Chancery Lane, London, W.C.. Agents
Improvements in Portfolios for Holding Engravings, Plans, Maps,
and the like.
I, ARTHUR PASS, of 70, High Street, Barnstaple, in the County of Devon,
Artists' Colourman, do hereby declare the nature of this invention and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement :-
This invention relates to improvements in portfolios for holding engravings,
plans, maps and the like, and has for its object to provide a portfolio of which the
containing capacity may be adjusted or regulated at will so as to suit the thickness
of the articles placed therein, so that the portfolio will hold and keep flat articles
ranging in thickness from that of a single sheet of paper to several inches, according
to the size of the portfolio.
A portfolio constructed according to my invention comprises a baseboard, a fixed
back leaf and a front leaf working on hinges or pivots placed at or near its lower
edge, the said hinges or pivots being so constructed and arranged, as hereinafter
fully described, that they may be moved towards or away from the back leaf and
secured in the desired position.

page_text: "
I will now fully describe my invention and the manner of performing the same
having reference to the accompanying drawings in which similar letters refer to
corresponding parts in all the figures, and wherein :-
Figs. 1 and 2 are perspective views shewing a portfolio constructed according to
my invention in its open and closed positions respectively.
Fig. 3 is, a sectional plan and Fig. 4 is a front elevation of the portfolio
represented in Figs. 1 and 2.
Figs. 5, 6, and 7 are details illustrating slight constructional modifications.
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a is the baseboard of the portfolio and b is the back leaf rigidly secured thereto.
cis the front Jeaf, the lower edge of which is connected by the hinges d with the
slides e which slide freely in the grooved pieces fextending across the baseboard a.
The hinges d can thus be moved towards or away from the back leaf b and the
containing capacity of the portfolio thereby regulated at will. g g are clamping
screws passing upwards through the baseboard a and grooved pieces f and bearing
upon the slides e. By means of these clamping screws g the slides e are locked and 1
the adjustable hinged front leaf c is retained in the desired position. hh are the
sides of the portfolio and i is a hinged top or lid whereby all dust and dirt are
excluded from the interior. k k are the usual hinged legs for supporting the
portfolio when open.
Fig. 5 shews a slightly modified arrangement for adjusting the hinges of the
front leaf c towards or away from the back leaf b. el is a plate having a dependent
lug which enters a slot m in the baseboard a. n is a screw spindle extending
along the slot m'and passing through a hole in the lug which is internally
threaded for its reception. The hinge d of the front leaf is secured to the plate e l
and the latter is adjusted towards or away from the back leaf b by turning the
milled head' n 1 which terminates the spindle n.
In the modification Fig. 6 the plate e 1 to which the hinge of the front leaf c is
to be secured has a dependent threaded stem o which extends downwards through
the slot m and is provided with the nut o 1. By loosening this nut the plate e 1;
may be adjusted to the desired position and secured by tightening up, the
said nut.
J
In the modification Fig. 7 the front leaf c is hinged to a strip c 1. In each
side of the portfolio a transverse slot m'l is formed through which passes freely
a screw o2 which enters the end of the strip cl.. The bolts o2 are loosened, the
strip c'moved towards or away from the back leaf as required and fixed in
position by tightening up the said bolts.
By a slight modification of the arrangement last described the hinges d and
strip c 1 may be dispensed with and the bolts o 2 may enter the sides of the leaf c
and serve also as pivots for the latter to turn upon.
If desired, as an equivalent of the arrangement illustrated in Figs. 3 and 4, a
loose baseboard might be placed upon the fixed baseboard a so as to be free to
slide transversely thereon and the hinges d may be secured to this loose baseboard,
which would be fixed in the desired position by means of clamping screws passed
through transverse slots in the fixed baseboard. A slot would be provided in the back
leaf d to permit the loose baseboard to project therethrough after the manner of
the slides e in Fig. 3 when the portfolio is adjusted to its smallest capacity.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:
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1. A portfolio comprising a baseboard, a fixed back leaf, a hinged or pivotted
front leaf, means whereby the hinges or pivots of the front leaf may be adjusted
towards or away from the back leaf for the purpose of regulating the containing
capacity of the portfolio, and means for retaining the frout leaf in the desired
position substantially as described.
2. In a portfolio the combination of a baseboard, a fixed back leaf, a front leaf
working on hinges at its lower edge, plates or a slide or slides movable transversely

page_text: of the baseboard and carrying said hinges, and means for retaining said plates or
slides in the position to which they are adjusted, substantially as and for the
purpose specified.
3. In combination with a portfolio comprising a baseboard, a back leaf fixed
thereto and an adjustable hinged or pivotted front leaf, the means for adjusting
and locking in position the said front leaf, substantially as described and as illustrated
in Figs. 3, 4, 5, 6 and 7.
Dated this 5th day of September 1896.
E. P. ALEXANDER & SON,
Chartered Patent Agents,
19, Southampton Buildings, Chancery Lane, London, W.C., Agents.