Improvements in the Manufacture of Resilient Material for Packing Purposes, and Apparatus therefor.
Year: 1893

page_text: Date of Application, 4th May, 1893
Complete Specification Left, 3rd Feb., 1894-Accepted, 3rd Mar., 1894
DE MUITIVATION.
Improvements in the Manufacture of Resilient Material for Packing
Purposes, and Apparatus therefor.
We, JOHN MARDON and HEZEKIAH ROGERS both of Avonside Paper Mills,
Bristol, Paper Manufacturers do hereby declare the nature of this invention to be
as follows:-
Our invention relates to that description of resilient packing material wherein a
sheet of corrugated or embossed paper or the like is cemented on to a flat sheet of
paper or other fabric. Our present improvements have for their object, firstly to
prevent the paper, after having been corrugated or embossed, from flattening or
spreading before it is cemented on to the flat sheet, and secondly to enable two.
such corrugated sheets to be simultaneously cemented on to two flat sheets, thus
doing double the amount of work at the same time in one machine.
For these purposes, according to one arrangement for making a single sheet of
resilient material, we provide two corrugated rollers gearing with each other, the
one roller having one or more circular grooves cut right through its teeth. As
the paper to be corrugated is passed from a reel between the corrugated rollers, a
thin filament such as string, thread, wire or tape is passed from another reel into the
groove of the one roller and passes round on the other roller together with the
corrugated paper to the point where the flat sheet of material coated with cement
is applied thereto, the filament being thus cemented in between the flat and the
corrugated sheets. By this means the filament in pressing upon the tops of the
corrugations of the paper, keeps this tight upon the corrugated roller and thereby
prevents the corrugations from flattening or spreading before the flat sheet is applied
thereto.
For applying such flat sheet, we prefer to employ an endless felt which is drawn
tightly round the greater part of the corrugated roller by means of guide rollers,
the flat sheet being made to pass in between such felt and the corrugated paper on
the roller, so as to be tightly pressed upon and cemented to the corrugated sheet
by the pressure of the felt. The corrugated roller is by preference made hollow
and heated internally so as to dry the cement before the paper passes away from
the roller.
When making two sheets of resilient material in the same machine, we simply
pass two sheets of paper together between the corrugated rollers instead of only
one, retaining the same by the filaments as before, and after a flat sheet has been
cemented to the outer corrugated sheet as before described, we apply a second flat
sheet to the inner corrugated sheet as this leaves the corrugated roller, and the two
sheets are then passed through a heated press, on passing out of which they are
separated out and wound up on separate reels, or they may be both wound together
on one reel.
According to another modification for making two sheets at once, we groove
both the corrugated rollers and we pass two sheets of paper together with two
filaments through the rollers, and on issuing from these rollers, the two corrugated
sheets confined by the two filaments, have two cemented sheets applied to them by
means of guide rollers, the combined sheets being then passed through a heated
press and then separated as before described. In this construction of the machine
we also in some cases may dispense with the filaments.
By the above described insertion of filaments in the resilient material, this will
e considerably strengthened.

page_text: According to another modification, instead of retaining the filament in the
material, we only let a wire or wires extend from a fixed point partly round the
corrugated roller so as to retain the corrugated paper thereon till the flat sheet is
applied thereto by the felt, after which the combined corrugated and flat sheets
are drawn off the wire on their further passage round the corrugated roller.
Although we prefer to carry the filaments through a groove or grooves in the
corrugated rollers, we may in some cases bring the filament over a small roller
close to the point where the paper leaves the corrugations, or we may apply a
shield with or without rollers against the corrugated paper in the space between
the point where the one corrugated roller leaves it and the point where the flat
sheet is applied thereto.
Dated this 4th day of May 1893
ABEL & IMRAY,
Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Resilient Material for Packing
Purposes, and Apparatus therefor.
We, JOHN MARDON and HEZEKIAH Rogers, both of Avonside Paper Mills,
Bristol, Manufacturers, 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 :-
Our invention relates to that description of resilient packing material wherein a
sheet of corrugated or embossed paper or the like is cemented on to a flat sheet of
paper or other fabric.
Our present invention has for its object to strengthen such fabric and at the
same time to facilitate its more rapid manufacture by preventing the paper after
having been corrugated or embossed by passing between two corrugating or
embossing rollers or cylinders from flattening or spreading before it is cemented
on to the flat sheet, and it consists mainly in passing one or more threads, tapes,
or thin wires over the surface of the corrugated sheet as it enters between the
corrugated rollers, so as, when it leaves the one corrugating roller, to hold it down
on the second roller until the flat sheet coated with cementitious matter is applied
thereto, such sheet being thereby made to enclose the thread or threads between it
and the corrugated sheet, so as to permanently form part of and strengthen the
resilient packing material produced.
On the accompanying drawing is shewn by way of example the construction of
"machine which we prefer to employ for carrying out our invention.
Fig. 1 shews a side view of the machine and Fig. 2 a part end view thereof.
The framing A carries firstly a cylinder B preferably of large diameter and
heated internally by steam, hot air or other suitable means; the periphery is
formed with rounded teeth or corrugations, with which engage the corresponding
teeth or corrugations of a smaller cylinder or roller C, the extent of the engage-
ment being regulated by screws D acting on the sliding bearings of the cylinder.
From a reel or drum E' the sheet of paper E to be corrugated passes first over a
guide roller F and then between the corrugated cylinder B and roller C so as to
be pressed thereby into a corrugated form. From a second drum or reel G'a
second sheet of paper G is passed firstly over rollers H dipping into a trough I
containing liquid cement, whereby the one side of the sheet is coated with the
cement, and secondly it passes over guide rollers J to the corrugated cylinder B
where it has its cemented surface applied to the outer surface of the corrugated
sheet E on such roller, so as to adhere thereto.
Upon a rack K are arranged balls of twine L or other filament, corresponding in
number to the number of threads to be combined with the resilient material, five

page_text: such being shewn in the drawing, and from these balls the threads L are led first
over or through a suitable frictional device, such as a pair of nipping rollers M in
order to maintain the requisite tension thereon, after which the threads pass into
correspondingly formed circular grooves N N cut through the teeth of the roller C,
in which they are carried round so as to pass between B and C at the back of the
corrugated sheet E. Thus on issuing from between the rollers, the corrugated
sheet will have the thread or threads L pressing upon its outer face, holding it
down in the corrugations of the cylinder B, until the flat sheet G is brought in
contact therewith by the guide rollers, which sheet consequently at the same time
secures the thread or threads between it and the corrugated sheet.
The sheet G is pressed against the corrugated sheet by an endless blanket P
which passes partly round the cylinder B against which it is tightly stretched by
adjustable guide rollers QQ and a weighted roller R. The cylinder B being
heated as before described, the cement on the sheet G will become effectually
dried as the combined sheets pass round in close contact therewith, so that by the
time they pass away from it at the point ✗, the corrugated sheet will be firmly
secured to the flat sheet together with the threads, and the resulting resilient
material is then wound up on a reel S. The corrugating cylinder and roller are
driven by any suitable arrangement of gearing, not shewn.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. An improved manufacture of resilient packing material wherein there is
combined with a sheet of corrugated or embossed paper or other suitable fabric
and a sheet of flat paper cemented thereto, a thread or threads tapes filaments or
wires secured between the two sheets substantially as described.
2. In the manufacture of resilient material produced by passing a sheet of paper
between a pair of corrugated or embossed rollers and cementing the corrugated or
embossed sheet to the flat sheet, the method of passing one or more threads,
filaments tapes or wires between the two sheets so as to be permanently combined
therewith, such threads or filaments being passed through grooves in the one
corrugating roller at the back of the corrugated sheet and thereby serving at the
same time to hold this sheet on to the second corrugated roller until the cemented
flat sheet is applied thereto, substantially as described.
3. The combination with apparatus for producing resilient material such as is
referred to in the preceding claims, of means whereby one or more threads filaments
tapes or wires are led through grooves in the one corrugating or embossing cylinder
on to the back of the corrugated sheet so as to be permanently combined with this
and the cemented flat sheet applied thereto, and at the same time to hold the
corrugated sheet on the roller until it is covered by the cemented sheet substantially
as described.
Dated this 2nd dan of Wohuone 1801
ABEL & IMRAY,
Agents for the Applicants.