Improvements in Knock-down Boxes and Covers.
Year: 1893

page_text: Date of Application, 8th Sept., 1893-Accepted, 14th Oct., 1893
COMPLETE SPECIFICATION.
Improvements in Knock-down Boxes and Covers.
I, JOSEPH TAYLOR CRAW, of No. 33 Ege Avenue, in Jersey City, County of
Hudson, State of New Jersey, United States of America, Box Manufacturer, do
hereby declare the nature of my invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:-
box.
The invention relates to knock-down boxes and covers of the kind known as
double telescope boxes and covers, that is to say, a box whereon the cover fits with
telescoping action. The box is termed double because the blank of which it is
formed is so cut and scored that there are formed side and end flaps which turn
down in clear to the bottom, thereby doubling the sides and ends, and showing the
same color and finish on the inside as on the outside; and also the bottom of the box
is formed double, the inside flap showing the same color and finish as the rest of the
The same construction is used with the cover, and thus I produce a double
box and cover, every part of which is of a uniform color, finish and handsome
appearance, whereas heretofore, the inside and bottom of the boxes have exhibited
the back of the board, which is of inferior color and finish from the front. By
my method of doubling the thickness of the bottom, which I effect by giving a very
tight fit to the inner thickness of board, I give much additional stiffness to the
bottom of the box (or top of the cover) where stiffness is most needed, and can
therefore use lighter board for the sides and ends, thereby saving in the weight of
board and cost of box.
My invention also relates to methods of construction such that the several flaps
of the box and cover shall interact upon each other as clamps and thereby be able
to hold the completed box in shape.
Referring to the drawings which accompany the Specification to aid the
description,
Fig. 1 is a longitudinal elevation of the box and cover complete.
Fig. 2 is perspective, partly broken, of the box, without the cover. This view
clearly shows the relative positions of the several flaps in the box after folding.
Fig. 3 is a vertical cross-section on the line X-X of Fig. 2.
Fig. 4 is a longitudinal vertical section on the line Y-Y of Fig. 2.
Fig. 5 is a plan view on a much smaller scale of the blank out of which the box
is made, and showing the various scores, cuts and flaps ready for folding.
Fig. 6 is a plan view of the inside bottom clamp on the same scale as Fig. 5.
Fig. 7 is a plan view of the blank out of which the cover is made, and showing
the various scores and cuts ready for folding.
Fig. 8 is a plan view of the inside cover clamp.
Figs. 7 and 8 are on the same scale as Figs. 5 and 6.
Fig. 9 is a perspective view on a scale between Figs. 2 and 5 of the box partly
folded.
Fig. 10 is a horizontal section as on the line Z-Z of Fig. 2, but on the scale of
Fig. 9.
Fig. 11 is a plan view of a modified blank, wherein the bottom clamp is in the
same piece with the rest of the box, and
Fig. 12 is a vertical cross-section of the box, made of this blank. The scale is
the same as Fig. 2.
Fig. 13 is a plan view of a modified blank wherein the inside bottom clamp is in
two pieces, each piece being connected with one side flap, and Fig. 14 is a vertical
cross-section (on the scale of Fig. 2) of a box made of such blank.
Referring to Figs. 1 to 10 inclusive, a blank A, of paper board is cut on the
Price &dl

page_text: external boundary lines 1; 2, 2; 3, 3; 4, 4; 5, 5; 6, 6; 7, 7; 8, 8; 9, 9.; 10, 10;
11 is also cut on the internal lines 12, 12; 13, 13; and scored on the lines 14, 15,
. 16, 16; 17, 17; 18, 18; 19, 19; 20 and 21. Thereafter an attendant plucks away
the waste parts so as to leave the outline as described, separates the flaps on the
aforesaid cuts, 12, 12, 13, 13, and "breaks" the aforesaid score lines, 14; 15; 16, 16;
17, 17; 18, 18; 19, 19; 20 and 21. Thus there is produced a blank having the
rectangular. bottom flap, a; end flaps, b; '; turn down end flaps, c, c¹; inside end
flaps, d, d', and e, el; side flaps, ff, and turn down side flaps, g, g'. Said inside
end flaps, d, d, e, e', are each attached to one of the side flaps and are one-half as
long as the box is wide on the inside. Said turn down side flaps g, and 7', are each a
very little shorter at each end than the side flaps, ff, the difference at each end being
the thickness of the board. The breadth of the end flaps 6 and b, being equal each to
each, exceeds the breadth of the side flaps, ff, (which also are equal each to each)
by about the thickness of the board, and the breadth of the turn down end flaps, c, c,
(being equal each to each) exceeds the breadth of said flaps, f, f, by perhaps half as
much. Said blank is then folded, first turning up the side flaps, f¹, then folding
in the inside end flaps d, d', e, e', as in Fig. 9; folding down and in the turn down
side flaps, g, g', clear to the bottom of the box, next folding up the end flaps, b, b,
then folding the turn down end flaps, c, c¹ down inside of the flaps, d, d, e, e',
respectively, the said flaps, c, c', turning over the flaps, d, d', e, e', because of the
end flaps, b,, being a little wider (or higher) than the side flaps, ƒ, ƒ³.
When so turned down in, said flaps, c, c', are pushed back and crowded between
the edges, 5, 5, and 7, 7 respectively of the flaps, g, 9', and the flaps, d, d', e, e¹,
respectively, and are here held by the clamping action of the said flaps, g, gl. Also,
said flaps, c, c', being each a little higher, (or wider) than the flaps, b, b, bind on
the bottom, a.
Finally the inside bottom clamp, i, which may be made of heavier
board, and is of a size to fit tightly within the box all around, and has the upper
side of the same color and finish as the outside of the box, is put in and tightly
clamps the turn down end and side flaps all around, and stiffens the bottom of
the box.
The cover is formed of a blank, B, with relatively the same cuts and scores as the
box, and in Figs. 7 and 8 the same letters and figures are applied to similar parts
as in the foregoing figures. But as will be understood, the cover will be made a
little larger in plan than the box so as to telescope over the same. Holes j,j, are
punched in said blank, B, being so positioned as to be intersected by the lines, 17, 17,
so that when the blank is folded to form the cover, said holes j, j', become semi-
circular thumb notches, in each side of the cover, as seen in Fig. 1. After the
various flaps of the cover are folded, as described for the box, the inside cover
clamp, i, Fig. 8, is inserted, thereby clamping the sides and ends of the cover all
around, and also giving to the cover inside the same color and finish as it has
outside.
In Fig. 11 is shown a blank wherein the doubling piece for the bottom, i¹, is
formed integral with one of the side flaps, (9'), the line 6 being now a score line.
In all other respects the blank is similar to that herein before described. The
manner of folding in the said piece i¹, will be evident from Fig. 12.
In Fig. 13 a blank is shown wherein the doubling piece is formed in two
halves,, each being one-half of the end of the box and integral with one of the
flaps, g, g, and both of the lines 6, 6, being now score lines.
Fig. 14 shows how said pieces, i,, are folded in.
blank is similar to that hereinbefore described.
In all other respects the
Evidently the cover as well as the box can be made of blanks like those shown in
Figs. 11, 12, 13 and 14.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
desire to claim is:
1. A knock-down box and cover, each having side and end flaps adapted to turn

page_text: down inside the box and cover and extending to the bottoms of the same, and
a double bottom adapted to clamp said side and end flaps, substantially as
described.
2. A telescoping box and cover, each having turn-in-side and end flaps and an
inside clamp piece of the same finish as said side and end flaps and adapted to clamp
the same, substantially as described.
3. In blanks for knock-down box covers the combination with side flaps and turn-
in-side flaps of holes situated to be bisected by the scores between the said side
flaps and turn-in-side flaps and so that when the last named flaps are turned in the
halves of said holes will register and form thumb notches in the sides of the cover,
substantially as described."
4. A telescoping box and cover having side flaps, turn-in-side flaps shorter than
said side flaps, end flaps, inside end flaps narrower than said end flaps, turn-in-end
flaps wider than said end flaps, and an inside clamp piece adapted to clamp said
turn-in side and end flaps, substantially as described.
5. A knock-down box having turn-in side and end flaps, extending to the bottom of
the box and showing within the same finish as the exterior of the box, and also having
a separate bottom adapted to be inserted within the box and clamp said turn-in
flaps and showing the same finish as the exterior of the box, substantially as
described.
6. A knock-down box cover having turn-in side and end flaps extending to the
bottom of the cover, and showing the same finish within as the exterior of the cover,
and also having a double bottom adapted to be inserted in the cover and clamp said
turn-in Haps and showing within the same finish as the exterior of the cover,
substantially as described.
Dated this 7th day of September 1893
DAY, DAVIES & HUNT,
321, High Holborn, London, W.C., Agents for the Applicant.