Improvements in the Manufacture of Cardboard Boxes.
Year: 1899

page_text: Date of Application, 7th Apr., 1899
Improvements in the Manufacture of Cardboard Boxes.
I, JOHN EDWARD THORNTON, of Rokeby, Oldfield Road, Altrincham, in the
County of Chester, Manufacturer, do hereby declare the nature of this invention
to be as follows:-
Card board boxes of the non-collapsible type are now most commonly made by
stamping out the bottom sides and ends from a single piece of material by cutting
away the corner pieces and then forming the corners of the boxes where the
edges abut by strengthening strips of material pasted glued or otherwise attached
thereto or by metallic clips or the like.
I find a very strong and durable corner may be made to the box in an entirely
different way by cutting the edges of the card board destined to form the
corners with a number of projections and spaces of dove tail or other approximate
or similar shape and bending over the material for both sides where the corners
join so that the projection on one enters the space of the other the two corner
pieces being in the same plane and fitting into each other.
The box may be of any shape or size and at each edge of the blank from which
the corner piece is cut out a number of projections and notches are formed of
dove tail or other similar shape. The inner side of the projections are scored
bent creased or otherwise treated to cause them to bend so that when brought
together the two sets of projections lie in the same plane and one dove tail pro-
jection lies in the corresponding notch. The dovetail of the end locks into the
dovetail of the side and vice versa. The angle or corner prevents the two being
readily pulled out of contact but cement gum glue mucillage or other adhesive
material may be applied to the edges to give additional strength. ir found desir-
able strips of paper or other material may be applied over the joints so formed.
It will be obvious that in addition to or instead of forming the corners between
the sides and ends of the box in this way the bottom and sides may be made sepa-
rate from the bottom and attached to the bottom in the way described.
1000

page_text: and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:-
Card board boxes of the non-collapsible type are now most commonly made by
stamping out the bottom sides and ends from a single piece of material by cutting
away the corner pieces and then forming the corners of the boxes where the
edges abut by strengthening strips of material pasted glued or otherwise attached
thereto or by metallic clips or the like.
I find a very strong and durable corner may be made to the box in an entirely
different way by cutting the edges of the card board destined to form the corners
with a number of flat projections and recesses of interlocking dovetail or other
approximate or similar shape and bending over the material for both sides where
the corners join so that the projection on one enters the space of the other the
two corner pieces being in the same plane and fitting into each other.
The invention will be fully described with reference to the accompanying draw-
ings in which several forms of box constructed in accordance with the invention
are illustrated as examples.
Fig. 1. Is a perspective view of box.
Fig. 2. Is a perspective view of box showing modified form of joint.
Fig. 3. Is a perspective view of box turned bottom upwards showing jointing
round the bottom edges.
Fig. 4. Is an extended blank of box shown in Fig. 1.
Fig. 5. Is an extended blank of box shown in Fig. 2.
Fig. 6. Is an extended blank of sides and ends of box shown in Fig. 3.
Fig. 7. Is a blank for bottom of box shown in Fig. 3.
Fig. 8. Is an extended blank of sides and ends of box with modified form of
joints.
Fig. 9. Is a blank for bottom of box shown in Fig. 8.
The box a is rectangular shape and may be of any size the parts being jointed
together either at the vertical edges or around the bottom.
Along the edges that are to be jointed together are formed a number of re-
cesses or notches c and projections d alternating with each other of such a shape
as to interlock one into the other the projection d being wider at its extremity
and the space or notch narrower.
The projections on their inner side are scored bent or creased along the
lines y to cause them to bend at right angles about the centre so that when
the edges are brought together the end of the projections d fit into the corre-
sponding recesses or notches c and interlock or dovetail therewith.
The projections d on the end interlock or dovetail with the spaces or notches c
on the sides and the projections d of the sides interlock or dovetail with the re-
cesses or notches c on the ends.
The angle formed at the edge or corner on the line a-y prevents the inter-
locking parts being pulled asunder but they may be further secured by glue gum
mucillage cement or other adhesive material applied to the edges to give addi-
tional strength.
The boxes a may be shaped by cutting away the corner pieces and jointing the
corners as in Figs. 124 & 5 or the bottom and sides may be made separately and
jointed along the bottom edge as in Figs. 3, 6, 7, 8 & 9.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is:-
-
1. The method of jointing the edges or corners of cardboard boxes by forming
flat interlocking or dovetail projections and recesses in the edges bending such
projections at right angles and engaging the projection on one side with the cor-
responding recess on the other substantially as described.
2. A cardboard box constructed with interlocking or dovetail projections and

page_text: recesses alternating around the edges to be jointed together which when brought
together engage one with the other substantially as and for the purpose described.
3. Cardboard boxes constructed substantially as described and shown.
Dated this 3rd day of January 1900.
WM. P. THOMPSON & Co.,
6, Bank Street, Manchester, Patent Agents.