Seamless Boxes, to be made from Wood Pulp, Straw Pulp and all Paper-fibres.
Year: 1896

page_text: Date of Application, 17th Dec., 1896
Complete Specification Left, 17th Sept., 1897-Accepted, 4th Dec., 1897.
PROVISIONAL SPECIFICATION.
Seamless Boxes, to be made from Wood Pulp, Straw Pulp and all
Paper-fibres.
RICHARD LOUIS WRANGHAM ATKINSON Merchant 3 Garden St. Withy' Grove
Manchester, and WILLIAM HENRY ALDRED Architect of 87 Mosley St. Manchester
do hereby declare the nature of this invention to be as follows:
Seamless boxes, to be made from wood-pulp straw pulp and all paper fibres, by
process which consists of molding the pulp into various shaped and sized boxes
by means of molds into which the pulp is run and then pressed into shape by a
hollow copper or steel block, into which steam is injected for the purpose of dry-
ing the pulp. The shaped box is then taken out of the mold still-adhering to the
block and subjected to heat & friction for the purpose of highly finishing the
surface; or left rough. The lid and body of box being made by the same
process.
Boxes to be made in all colours.
RICHARD L. W. ATKINSON.
WILLIAM H. ALDRED.
Seamless Boxes to be made from Wood Pulp, Straw Pulp and all
Paper-fibres.
RICHARD LOUIS WRANGHAM ATKINSON Merchant. 3 Garden Street. Withy Grove
Manchester WILLIAM HENRY ALDRED Architect 87 Mosley Street Manchester
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:-
The making of seamless boxes from wood pulp, straw pulp and all paper fibres,
and a machine for making same as herein described.
The machine consists of a table A, moving upwards and downwards between
guides the table A in this case is circular, but can be made square oblong oval or
any other shape, and has a channel B. running round the same, formed by a rim,
the object of this channel being to carry off the surplus water from the pulp
during the process of making the boxes, in the bottom of this channel there are
two perforations with nipples C downwards, to which india rubber tubing is
attached for the purpose of carrying the surplus water to any position desired.
Above the table A and let into it is what we call an outside mould D, this mould

page_text: can be made of copper brass or any other suitable material attached to it are two
hinges and handles E by which this mould can be lifted when required, the sides
of this mould are perforated F to a certain level Inside this outside mould 1)
there is what we call an inside mould G, less in size leaving a space between the
two moulds for the pulp to fill this inside mould G carries part of a cone or other
suitable female joint H. The vertical standards, I, I, shewn, carry screwed to
them the pillars K K, these pillars carrying a crosshead L on top, this crosshead
has in its centre a smoothed bored hole through which runs a hollow threaded
spindle M, this spindle carrying on top the casing N and at its end the male steam
joint. O fitting into the female joint H the casing N carries on the top a
mometr tube P which reaches into the inside of casing N so as to indicate tho
temperature of the steam, the side of casing N carries the steam cock N¹, the
nuts R, on top and bottom of crosshead L and on the spindle M are made to take
the thrust and at the same time to regulate the height of the bottom of the inside
mould G from the bottom of the outside mould 1) and thus regulating the various
thicknesses of pulp required the pin S fastened on one side into the spindle M,
the pin carrying on the outside a pointer working in the slot T, worked into the
crosshead L, it indicates by means of a scale U, the exact distance between the
bottoms of the inside and outside moulds. The inale joint O'carries two pins V
one on each side and upon which the fork W and the lever 2 is hinged, the
fork W carries a slot nearly concentric with the pins V, this slot catches the pin X
which is fastened to H, the pin Z is a stop fastened to O, to keep the fork in its
proper position. The lever 2 carries a weight 3 also a pin 4 which carries a rod 5
this rod ending in 'a slot 6, working on a pin 7 the latter being fastened to a lever 8
and this lever 8 is attached to the centre plug of the steam cock N', the slot G
allows the lever 8 to work upwards and downwards in the slot, thus opening and
shutting the steam cock without, if it is desired, interfering with the fork W and
the lever 2. The standards II are bound by the top frame 9, and the bottom.
plate 10, the guides 11. are one with the talle A, working in the guide bars 12,
the up and down movement of this table is worked by means of a vertical toothed
rack 13, fastened on its top end to the table A, the bottom part of the rack work-
ing into a toothed segment 14, the same working on a pin 15, carried in bearings 16,
at the end of this pin and fixed to it is a lever 17 having a bent handle 18 and an
adjustable weight 19, to balance weight of table and moulds and to keep lever in
position; there is a friction roller 20 against the back of the rack. On the right
side of lever 17 is a special apparatus 21, to fix the stroke of the lever acting on
the length of the table movement, this apparatus consists of a scaled sextant 21
the whole of which is fastened to the bed-plate 10, the sextant carries on one side
and in one with it a fixed stop 22 and on the opposite side a moveable stop 23, this
moveable stop 23 we purpose making in two parts one part being a solid casting
pastly encasing the sextant 21, the other part being a loose plate 42, these two
parts being kept together by means of two bolts 40 one on the outer side and one
on the inner side of the sextant 21, by loosening the nuts on bolts 40 the stop 23
as a whole can be moved to any position on the sextant and held in its position by
means of tightening the nuts on bolts 40, by turning the lever 17 from the stop 22
towards the stop 23 the table 9 is moved downwards and the object.of the moveable
stop 23 is to define the distance the table is to move downwards; by bringing back
the lever 17 to the stop 22, the table 9 is raised again to its original height or
position. The scale 24 shows the exact length of the stroke of the table, the
pin 25 fastened to one of the guides 11, and working in a slot 26, on the standard I
serves to prevent the table from turning round The dotted line 27, denotes the
lowest position of the table A, and the dotted line 28, denotes the position of
lever 17, when the table is in its lowest position.
The process of making the boxes is as follows the outside mould is filled with
pulp up to the level of the perforations, and having let down the table by turning
lever 17 to position 28, the mould after being filled as above, is placed in its
position on the table, the lever 17, is then brought back to its original position

page_text: and the table rising presses the pulp contained in the outside mould against the
inside mould, which has been in the mean time heated by means of steam let in
through opening 29 of the steam cock, thus forcing the pulp to fill the space
between the inside and outside moulds, the surplus water being carried away
through the perforations and thence by the channel and the india rubber tubing
to the desired position. After the pulp has been thus pressed into the form of a
box and to a certain extent dried by the steam passing through the tube M to and
heating the inside mould G. The moulds are then taken off the table and the
pulp allowed to dry, other moulds being substituted and the process repeated; by
raising lever 2 to position 30, lever 8 is raised to position 31, and when the fresh
mould is placed in its position on table 9, lever 2 is brought back to its original
position and slot 6 on rod 5 sliding down pin 7 on lever S, leaves lever 8 still in
position 31, which is the angle at which the steam cock is closed, the attendant
can thus open the steam cock by pulling down lever 8 from position 31 to its
original position, this arrangement makes it impossible to remove the moulds
without closing the steam cock, and at the same time giving to the attendant
power to re-open the steam cock after the moulds have been replaced. After the
pulp in the moulds has sufficiently dried the outside mould is taken off and the
box now formed, and adhering to the inside mould is taken and finished by means
of friction & heat The machine can be made of any suitable material in all sizes,
with one spindle as shewn or with two or more if found desirable in the making
of larger boxes and can be so constructed so that boxes of any shape or height can
be made. This machine can be worked either by hand as shewn on our drawings
or by any other suitable mechanical contrivance such as wheel-gearing, hydraulic
force &c. &c.
The drawings consist of two sheets Nos. 1 and 2.
Sheet No. 1. Fig. 1. Front view of the machine. Fig. 2. Side view of the
machine. Fig. 3. Plan of same.
Sheet No. 2. Fig. 4. Sectional view of the fork shewing method of attaching
fork to the male & female joints. Fig. 5. Vertical section of the top working parts
of the machine shewing the moulds and steam apparatus. Fig. 6. View of moulds
and self acting attaching arrangement of inside moulds to steam spindle M.
Fig. 7. Plan of table and plan of moulds in section.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is,
The making of seamless boxes from wood pulp, straw pulp and all paper fibres,
and the construction and use of a complete machine by which they are made.
Dated this Sixteenth day of September Eighteen hundred and ninety seven.