IMPROVEMENTS IN BOX DRAWERS OR CASES FOR FILING PAPERS AND DOCUMENTS
Year: 1877

page_text: PROVISIONAL SPECIFICATION left by Alexander Melville Clark at the
Office of the Commissioners of Patents on the 4th July 1877. A communi-
cation from abroad by Charles Channey Chamberlain, of the City, County, and
State of New York, United States of America.
"
ALEXANDER MELVILLE CLARK, of 53, Chancery Lane, in the County of Mid-
dlesex, Patent Agent.
IMPROVEMENTS IN BOX DRAWERS OR CASES FOR FILING
PAPERS AND DOCUMENTS." [A cominunication from abroad by Charles. Channey
Chamberlain, of the City, County, and State of New York, United States of
America.]
Figure 1 of the accompanying Drawing is a diagram showing the manner in
which the material is cut, and creased, and prepared for folding, &c.
Figure 2 is a perspective view of the outer case, envelope, or box drawer, as
folded and fastened together complete.
Figure 3 is a perspective view of the inner envelope, case, or box draw, folded
and fastened together complete, with a drawer ring or handle inserted in and through
the front end thereof, and the inner tin or metal stiffening lining, a ring being one
of the forms of handle used for opening the combined case, envelope, or drawer.
Figure 4 is a perspective view of the metallic backing plate with flanged
ends.
According to this Invention the cases or files are cut in a rectangular form
from the material, as shown in Figure 1, by knife or saw, according to the black
lines, all at once, or in one operation, and prepared by creasing the same in two
parallel lines indented or creased into the material according to the size and form
thereof, to facilitate easy and correct folding, such folding being assisted by a slight
cut into the centre, or on the sides of the creases to relieve the rigidity of the
material. These creases determine the length and thickness of the cases, the cross
line at right angles with the said parallel lines making the height and breadth of
the case, thus leaving one end of the same open. A piece of tin A is then secured
upon the back of the part A¹, forming the closed end, and in front of the flaps C,
both of the inner and drawer case, and of the outer or enveloping case, this piece of
metal corresponding in size with such ends, and being of sufficient size to extend at
the sides thereof to turn over the side edges and bend upon the material as at x,
ו…..

page_text: Figure 4, to secure the same in its position, both to strengthen and stiffen such
ends, and to furnish a secure hold for the handle, button, or ring to draw the
same out.
..
In folding, after inserting the plate of tin, the whole in a single sheet is folded
into shape as described, and the sides B securely glued or fastened together, the
material being double on the sides, and treble at the back of the outer case, affording
stiffness and strength with great durability.
The two cases are cut, creased, and folded in like form and manner, except that
the inner case is cut away on the top part D so as to expose freely the back part of
the interior and part of the length of any contents thereof, both for convenience of
filing and examining such contents; or the top part D may be cut through along
its side edges for half its length, more or less, and creased crosswise at the ends of
said cuts, forming a flap d¹, which may be turned back for convenience in inserting
and removing the papers, and may be secured at its inner end when the file is filled
by a loop attached to the end of the bottom of the file.
The inner case being inserted into the other case, completes the box case or
envelope, the said cases, either the inner case separately, or the two in combination,
to be also used together with any other receptacle, vault, or pigeon hole, or other
place for the keeping of articles, documents, or papers thus inclosed or filed.