IMPROVEMENTS IN THE MANUFACTURE OF PAPER BOXES AND SIMILAR ARTICLES AND IN APPARATUS FOR THE SAME
Year: 1876

page_text: PROVISIONAL SPECIFICATION left by Henry John Cubitt Keymer at the
Office of the Commissioners of Patents on the 15th December 1876.
HENRY JOHN CUBITT KEYMER, of Norwich, in the County of Norfolk, Engineer.
"IMPROVEMENTS IN THE MANUFACTURE OF PAPER BOXES AND SIMILAR ARTICLES
AND IN APPARATUS FOR THE SAME."
My Invention has for its object the manufacture of boxes from widths or strips
of paper or other suitable material of such forms or shapes as to admit of the sides
and ends of each box being formed out of one side or portion of the strip, and the
bottom out of the other side or portion thereof, by creasing, folding, and pasting or
cementing the said respective portions of the strip as required by means of the
apparatus or mechanism herein-after described. For this purpose the widths or
strips are or may be made by cutting a wide roll into as many widths, strips, or
narrow rolls as can be cut out thereof by means of circular revolving knives of the
required form, and the edges of such knives working or revolving one into the
other, such lesser rolls, strips, or widths being cut on one side into the forms or
shapes required to form the bottom of the box, the other side or portion of the strips
forming the sides and ends thereof. The said sides or portions may be cut so as to
form the bottom of the box by means of either two or four folded flaps or both
combined.
When cards or boards are used they can be cut in the same manner as abovo
stated, or by means of inachines in which vertical knives are driven through several
thicknesses at once. The knife bar of such machine should be of the required form,
or have blocks fitted to it carrying knives adapted to cut the card to the required
width, and also to leave the requisite projecting piece or pieces on the one side or
edge of each by dividing the strip so as to cut the said side or edge of one out of the
other strip.
The lesser widths or strips when cut and formed in the manner above stated, or
in any other convenient manner, are fed into a machine in which they are creased,
folded, pasted, or cemented, and made into boxes as required.
The main working parts of the said machine consist of feeding apparatus for
carrying the strips forward between a pair of rollers, in the periphery of one of which
rollers are inserted knives at suitable intervals, and on the top of such roller is a
circular knife, by means of which knives the strips are cut or creased as required for
bending or folding.

page_text: The strips are guided forward by a second pair of rollers to a horizontal wheel, on
which are carried twelve or other suitable number of revolving blocks at equal
distances apart, and corresponding in size with the box required to be made. These
blocks are heated by steam, and the wheel is caused to travel in one direction
intermittently, by which means the blocks are moved into the different positions
required for effecting the different operations of folding and closing.
When the block is in its first position a piece of paper is laid on the top of it,
with its upper side covered with paste or cement; this is before the blocks reaches
the point where the strip is fed in.
At the second position of the block a single thickness of card or roll is wound
thereon, with the top edge adapted to fold over and form the bottom of the box,
such bottom to be folded down upon the said piece of pasted paper.
At the third position of the block, if an extra thickness is required for the bottom
of the box as well as the sides and ends, a strip with the side or edge formed
differently from that employed at the first position may be used, by which the
joints at the bottom will be covered. The strip as it is wound on the block in the
two last-named positions is nipped by a gripper which revolves with the block, and
the angular pieces of card are pressed by a finger plate connected with the gripper,
being thereby pasted down by the loose piece of paper on the block, and as soon as
the block has made three-fourths of a revolution the gripper is lifted on its axis,
and allows the block to pass forward with a card or strip wound upon it.
At the fourth position of the block a second arrangement for pasting is employed,
with a piece of paper pasted on the under side, and used to cover the outside of the
bottom of the box.
At the fifth position are used a pair of paste rollers and the gripper arrangement
before named for pasting and winding on the box a finishing printed paper.
From positions five to ten the box is pressed by means of a weight, and dried by
the steam heated block.
At position eleven the boxes are taken off the blocks in a finished state.
When the boxes are made from separato strips of paper, boards, cards, or of any
suitable material in a dry or semi-dry state, an endless feeding band with carriers is
employed to convey them into the machine, but when they are made from rolls this
arrangement is not required.
The arrangement for pasting and gripping, as at position five, may also be used
for folding the edges of pieces of card of the ordinary form for making boxes.
The machine and its connections are arranged so as to be driven from one shaft
and by the same belt, the gearing for which is adapted to make the several parts
work in relative times, as required.