Improvements in the Manufacture of Waterproof Boxes
Year: 1895

page_text: Date of Application 4th May 189-Accepted, 8th June, 1895
Improvements in the Manufacture of Waterproof Boxes
I WILLIAM TIGGIN of Dickinson Street Silford in the County of Lancaster,
Box Mnufacturer do hereby declare the nature of this invention and in what
manner the same is to be performed to be particularly de.cubed and ascert uned
in and by th following stitement
My said invention relates to improvements in the manufacture of cylindrical
waterproof boxe
In order to more clearly explain my said invention I append a sheet of drawings
to which reference is hereinafter made
Figs 1 and 2 are sections of boxe to which my said invention relates
In Fig 1
the body of the box is a cylindrical tube a closed at the bottom by a dished end b
secured to the part a by water proof cement The box is closed by a loose lid
Similar to the dished ena
In Fig 2 the body is thickened by an outer jacket in order to produce flush
Joints where the ends overlap the body
According to my said invention I mile such boxes from paper treated in the
following mannei I take plan piper and coat one surface thereof with such
waterproof material is after drying will soften ind become dhe ive under the
action of beat
A suitable material is I find pitch made from cotton seed oil
The aid material is applied by a spreading machine such as is commonly used in
the manufacture of coated papers as will be well understood and allowed to become
perfectly div
To form the ends of the boxes I take a sheet of plain paper and super pose thereon
one or more sheet of dry pipe coated as herembefore set forth ind subject the
whole to the action of heat and pressure by passing the combined layers through
heated pressine rolleis or over a heated table or through a heated chamber to
soften the coating and then through a pur of pressure roller
The same end may
pressing them in a
be obtained by subjecting the layer to the action of heat and
press or by the use of a press havin_ heated pres- plates
A thick waterproof paper or cardboard is thus produced from which the lids or
ends are cut and dished in the well 1 nown manner by means of press having a
plunger and a heated hollow die
The
The cylindrical part or body of the box I produce by rolling paper coated as
herein before described round a mandrel shile subjecting the coated paper to the
simultaneous action of heat and pressure For this purpose I prefer to use the
machine illustrated in Fig 3 in which d is the framework e is the main driving
shaft is a hollow cylinder heated by steam gas or otherwise g is a mandrel on
which the box body is formed Toothed gearing wheels indicated by dotted lines
at g g g impart 1otary motion to the heated cylinder and the mandrel
Journal of the mindrel g is carried by a weighted lever by which it is pressed into
contact with the heated cylinder / In making a box body I first pass a sheet of
plain paper of sufficient length to form the lining of the box between the weighted
maudrel g and the heated cvlinder in the direction indicated by the arrow),
after
passing under the mandrel g the paper meets the guide k and being deflected upwards
laps 1ound the mandrel q Thereupon a strip of coated paper (the width of which
coi responds to the length of the body a) is passed through in a similar way and
becoming heated and adhesive in its passage it adheres to the lining sheet and laps

page_text: round the mandrel in one or more layers The length of the strip of coated paper
depends on the number of layers it is desired to have in the thickness of the
body a
To form the kind of box illustrated in Fig 2 a second strip of narrower coated
paper is lapped round the mandrel in a similar manner The mandrel is then raised
by lifting the weighted lever h and the tubular body is slid longitudinally off the
mandrel
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed i declare that what
Ilaim is
-
1 The manufacture of the lids and ends of cylindrical waterproof boxes by
first coating paper with such waterproof material as when dry will soften and become
adhesive, super posing one or more such dry coated sheets on plain paper subjecting
the pile to heat and pressure cutting the board thus produced into discs and cupping
them in a press by means of a plunger and heated die substantially as set forth
2 The manufacture of the bodies of waterproof boxes by lapping paper coated
with such material as when diy will soften and become adhesive about a mandrel
while subjecting it to the simultaneous action of heat and pressure substantially as
set forth
3 A box having a tubular body and dished ends produced by the action of heat
and pressure on layers of paper coated with such waterproof materials as soften
and become adhesive under the action of heat substantially in the manner and for
the purpose set forth
Dated 3rd ty of May 1895
ET WHILELOW, A M Inst CE,
70, Deansgate, Manchester, Agent for the Applicant