Improvements in or in connection with the Manufacture of Linoleum, Cork Carpets, and the like Fabrics, and in Apparatus or Machinery therefor.
Year: 1896

page_text: Date of Application, 25th Mar., 1896
Complete Specification Left, 28th Dec., 1896-Accepted, 13th Mar., 1397
PROVISIONAL SPECIFICATION.
Improvements in or in connection with the Manufacture of
Linoleum, Cork Carpets, and the like Fabrics, and in
Apparatus or Machinery therefor.
We JOHN INGLEBY of 12 Bainbrigge Road Headingley Leeds in the County of
York Civil Engineer and EDWARD OSTLERE of the Forth Works Kirkcaldy N.B.
Linoleum Manufacturer do hereby declare the nature of this invention to be as
follows:-
Our invention refers more particularly to improvements in or in connection with
the manufacture of linoleum, cork carpets and the like fabrics, (hereinafter for the
sake of brevity referred to as linoleum), and in apparatus or machinery therefor,
set forth in the Specifications of Letters Patent No. 18469 of 1894 and No. 12433
of 1895; but part of our present improvements are more or less applicable to other
processes and machinery for the manufacture of linoleum than those set forth in the
said specifications.
1. Our invention in the first place comprises the use in combination with flat bed
and rotary machines, referred to in said specifications, of an endless apron pressing
device, to effect either a preliminary compression of the fabric material in the
moulds to adhesion with a subsequent compression by a press device or rollers to
consolidation, or a complete compression in the first instance to consolidation. In
the case of flat bed machines, the endless apron is supported and driven by suitable
rollers; so that over a portion of the traverse of the apron, the apron moves
along in the same direction and at the same speed as the fabric material in the
moulds immediately beneath the apron; the apron at the commencing end of this
portion of the traverse being very slightly above the level of the surface of the
uncompressed fabric material; whilst as it traverses along, it gradually approaches
and compresses the material; until when the apron reaches the end of this portion
of its traverse, its level is the same as that intended for and to which it has by
compression reduced the upper surface of the compressed fabric the webs being
correspondingly withdrawn by an inclined groove or rail. In the case of a rotary
machine, this portion of the traverse of the endless apron is a curve of approxi
mately the same radius as that of the mould cylinder, but slightly eccentric to the
latter.
The back of the apron over this portion of the traverse is or may be supported
by rollers or a back plate. A tightening roller in adjustable bearings is provided
to regulate the tension of the band. It will be understood, that this apron pressing
device takes the place of the press lettered C in the drawings accompanying the
above mentioned specifications.
The advantages obtained by this apron pressing device are, that in the case of
flat bed machines the motion of the moulds and charging devices may be continuous
instead of being intermittent; whilst in the case of the rotary machine, described in
Specification No. 12433 of 1995, the use of the heavy oscillating levers and press
connections is dispensed with. The friction of the apron against the upper surface
of the fabric material, or canvas covering the fabric material, avoids the tendency
to distort the pattern, which accompanies the use of rollers for compression.
The endless apron may be made of rubber, canvas, leather or other suitable
flexible material.
· In the second place our invention refers to A new manufacture of
and

page_text: machinery for making inlaid linoleum and linoleum having a surface pattern of
coloured material on a base fabric or material. This consists in moulding the
material to form the pattern by means of rectangular moulds, having two vertical
sides, and provided. with removable pattern grids placed in them; and charging
the compartments of the grids by means of cylindrical stencils, placed above and
in contact with the top of the grids, and rotating with a surface speed equal to the
speed of the forward movement of the grid moulds. The moulds are formed in
short lengths, and joined together capable of sliding on a bed; and the pattern
grids are laid on the mould plates, either directly, or with an intervening canvas or
other backing, where it is intended to produce (through) inlaid linoleum. The
depth of the pattern grids may vary as in some cases we propose to use very deep
pattern grids, so that a fabric is produced of such a thickness, that it may after-
wards be split into several thinner sheets; which may or may not be afterwards
provided with a canvas backing.
The pattern grids may or may not be provided with vertical sides and ends.
The internal vertical webs or fences are shaped so as to correspond to the outlines
of the pattern to be produced, or may divide the mould into numerous compartiments
of uniform size and shape, or sizes and shapes, as set forth in the Specification of
Letters Patent No. 12433 of 1895. To facilitate the withdrawal of the grid
mould without disturbing the deposited material, the webs may be made much
thinner at the bottom than at the top; and in addition if found desirable, we
propose to fit a vibrating hammer or hammers or mechanism acting in a similar
manner, so as to impart a light vibration or tremor to the grid mould as it is being
raised, and thereby to cause any particles of linoleum material which may adhere
to the ribs to fall off.
As, where the webs or ribs are formed taper, the openings at the top being
smaller than at the bottom, are smaller than the spaces in the pattern, the
openings in the stencil cylinders are then made smaller than the corresponding
spaces of the pattern.
Where it is desired to produce geometrical patterns, the internal ribs may be
formed of, and by the combination of, a number of short tubes of equal length; the
tubes being of a geometrical section or sections; for example, square, rectangular,
triangular, circular and semicircular. Such tubes can be combined together in a
variety of ways to form various patterns or mosaic designs; the tubes being
held together by being tightly clamped between the sides of the mould frame, and
soldered, or otherwise fixed in position.
Also we propose to form a grid mould by taking a number of such tubes all of
one uniform small section, (for example say a right angle triangle inch on the
sides), and secure them together within the mould frame as above described.
With such a grid mould, it will be evident that by merely using stencils or other
equivalent distributing device of different designs, and charging the tubes in
suitable groups at a time, different designs can be produced from the same
mould.
3. In the third place our invention refers to the use and construction of
cylindrical stencils for the distribution of the material variously coloured in proper
position on a base fabric or base material; or so as to fill moulds such as are above
described; or more particularly retractile web moulds, such as are referred to
in the Specifications of Letters Patent No. 18469 of 1894 and No. 12433
of 1895.
a. In our present invention the stencil cylinder is formed as a thin hollow
cylinder. The walls of the cylinder are perforated, forming numerous openings;
which generally in any one cylinder correspond with, but not necessarily of the
exact size and shape as the spaces of the pattern all of the one or other colour.
Where used for charging compartment moulds, the openings may be less in size
than and correspond only roughly with, the shape of the corresponding spaces in

page_text: the pattern. The number of stencil cylinders employed will vary with the number
of colours in the pattern, and may be the same or less or more.
The cylinder is placed transversely across the bed of the linoleum machine, with
the under surface of the cylinder touching or almost touching the top edges of the
webs of the moulds. The cylinder is preferably provided at each end with a stiff
rim, hereinafter referred to as the end rims. These rims are each provided with a
circular projection or a recess, fitting in or on a corresponding recess or projection
on or in a bearing or frame of the machine. For the sake of distinction, such
bearing or frame ie bereinafter called the bearing frame. In this manner the
stencil cylinder is carried capable of being rotated, but incapable of end
movement.
Or the end rims may be provided with grooves or recesses, in which fit the ends
of antifriction rollers carried by the bearing frame, or vice versa. Or the stencil
cylinder may be carried by antifriction rollers extending more or less the full
length of the cylinder, and placed on each side of the lower half of the cylinder;
leaving the bottom clear, so as to come in contact with the top of the moulds.
The rotation of the cylinder may be effected by means of a toothed wheel or
wheels, attached to the end rim or rims, or to other connection to the stencil
cylinder; the said wheel or wheels gearing with a rack or racks on the side or
sides of the mould frames, or other part carrying the mould or mould frames; the
rotation being such, that the surface speed of the stencil cylinder is exactly the
same as that of the movement of the moulds beneath it. For this reason the point
of contact of the pitch lines of the wheel and rack should be in line with the line of
contact of the stencil cylinder and the top of the mould. Should it be considered
necessary or desirable, in order to preserve an even flow of the material in the
interior of the stencil cylinder, that the cylinder should he continued undiminished
in diameter past or to the outside of the bearing frame, the above mentioned
condition as to the position of the point of contact of the pitch lines cannot be
fulfilled. We propose to overcome this objection either by driving the cylinder
from the opposite end only, or by introducing a couple of pinions on an inter-
mediate shaft between the toothed wheel and the rack; the diameters of the
pinions varying in the proportion which the outside diameter of the stencil cylinder
bears to the diameter of the toothed driving wheel attached to it.
We may however form the outlet or both ends of the stencil cylinder beyond
the perforations conical, such that the incline will readily permit the internal blade
worm to force the surplus material up such incline out of the cylinder; or an
internal screw blade may be attached to this conical part to effect the same
purpose. This coneing of the end or ends of the cylinder permits of a toothed
driving wheel being affixed to the cylinder of the same diameter as the cylinder,
60 as to gear directly with the rack.
The stencil eylinder may also be rotated by means of vertical taper pins
attached to the sides of the mould frame, or the carrying plates; the said pins
engaging with holes in the end or ends of the stencil cylinder; or vice versa.
b. In order to obtain a free and regular feed or passage of the fabric material
through the perforations of the stencil cylinder, when the perforations come about
the line of contact of the stencil cylinders and the top of the moulds, we cause the
fabric material to be fed in a stream in a transverse direction, (i.e. at right angles
to the motion of the moulds), over or along a slit placed on the upper (i.e. inner)
surface of the cylinder stencil plates about or close to the said line of contact.
This we effect in the following manner.
In the lower part of the stencil cylinder is provided a worm conveyor, driven by
any suitable or convenient means. This conveyor is placed within a trough of
convenient shape, which touches or almost touches the interior surface of the
stencil cylinder along two sides of a longitudinal slit formed in the bottom of the
trough; said slit being immediately above the line of contact of the stencil
cylinder and the upper surface of the moulds. The front edge of the slit may, be
undercut to facilitate the passage or fall of the fabric material through the same.

page_text: The back edge however is preferably knife shaped. The lower half of the stencil
cylinder may be covered on both sides by a closely fitting shield, to prevent
the accidental or inopportune passage of any linoleum material through the
perforations of the stencil cylinder. Provision may be made for adjusting the
width of the longitudinal slit.
c. In order to ensure a uniform feed or depth of the stream of material flowing
along the slit, by counteracting the tendency, where only one conveyor is used, of
the material to heap itself up at the commencing end of the worm conveyor, we
provide the following means.
In the upper part of the stencil cylinder, and with its axis slightly on that side
of the cylinder corresponding with the descending side of the above mentioned
worm conveyor, is placed a second worm conveyor, the lower half of which fits
loosely within a trough, conveniently semicircular or V shaped in cross section.
The entering end of this trough communicates with the lower part of a hopper,
fixed outside the bearing frame. The opposite end of the trough stops somewhat
short of the end of the stencil cylinder. The trough is provided with openings on
its underside, which can be more or less closed by means of short slides, adjustable
from the exterior by rods or other convenient means. Or the trough may be made
in two side portions, which leave a long narrow V or tapering slit between their
lower edges, the two portions being arranged capable of being moved nearer
together or further apart, so as to regulate the fall of the material to the lower
conveyor. The fabric material is fed to the stencil cylinder from the hopper, and
is carried forwards to the opposite end of the cylinder by the top conveyor, where
it falls to the lower trough, and is traversed back over the above mentioned slit by
the lower conveyor; the greater part in its passage falling through the stencil
openings. By means of the adjustable openings or tapering slit in the underside
of the top trough, the fabric material is arranged to cover the slit in the lower
trough over its whole length to a uniform depth, whilst constantly moving in the
length or direction of aud over the slit, thus ensuring a regular and uniform filling
of the moulds, the device being in fact a compensating arrangement for the
variation in the flow of the material due to the varied sizes groupings of the
and
openings in the stencil cylinder.
Dated this 22nd day of Mouch 1906
or
J. CLARK JEFFERSON,
30 Park Row, Leeds, Agent for Applicants.
COMPLETE SPECIFICATION.
Improvements in or in connection with the Manufacture of
Linoleum, Cork Carpets, and the like Fabrics, and in
Apparatus or Machinery therefor,
We JOHN INGLEBY of 12 Bainbrigge Road Headingley Leeds in the County
of York Civil Engineer, and EDWARD OSTLERE of the Forth Works Kirkcaldy N.B.
Linoleum Manufacturer 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 refers more particularly to improvements in or in connection
with the manufacture of linoleum, cork carpets and the like fabrics, (hereinafter
for the sake of brevity referred to as linoleum), and in apparatus or machinery
therefor, set forth in the Specifications of Letters Patent No. 18469 of 1894, and
No. 12433 of 1895; but part of our present improvements are more or less
applicable to other processes and machinery for the manufacture of linoleum.

page_text: 1. Our invention in the first place comprises the use in combination with flat
bed- and rotary machines referred to in said specifications of an endless apron
pressing device, to effect either a preliminary compression of the fabric material
in the moulds to adhesion with a subsequent compression by a second pressing
apparatus to consolidation, or a complete compression in the first instance to
consolidation. In the case of flat bed machines the endless apron is supported
and driven by suitable rollers, so that over a portion of the travel of the apron,
the apron moves along in the same direction and at the same speed as the fabric
material in the moulds immediately beneath the apron; the apron at the
commencing end of this portion of the traverse being very slightly above the level
of the surface of the uncompressed fabric material; whilst as it traverses along,
it gradually approaches and compresses the material, until when the apron reaches
the end of this portion of its traverse, its level is the same as, that intended for
and to which it has by compression reduced the upper surface of the compressed
fabric material; the webs being correspondingly withdrawn by suitable mechanism,
simultaneously with, or prior to the compression. In the case of a rotary machine
this portion of the traverse of the apron is a curve of approximately the same
radius as that of the mould cylinder, but slightly eccentric to the latter.
The back of the apron over this portion of the traverse is or may be supported
by rollers or a back plate. A tightening roller in adjustable bearings is provided
to regulate the tension of the band. It will be understood, that this apron pressing
device takes the place of the press lettered C in the drawings accompanying the
above mentioned specifications.
The advantages obtained by this apron pressing device are, in the ease of flat
bed machines that the motion of the moulds and charging devices may be
continuous instead of intermittent; and in the case of the rotary machine described
in Specification No. 12433 of 1895 that the use of the heavy oscillating levers and
press connections is dispersed with. The frictional resistance of the apron against
the upper surface of the fabric material, or canvas covering the same, avoids
the tendency to distort the pattern, which accompanies the use of rollers for
compression.
The endless apron may be made of rubber, canvas, leather, sheet metal or other.
suitable flexible material; and may be employed for compression of the fabric
material to adhesion or consolidation in linoleum machinery other than that
referred to in the before mentioned specifications.
2. In the second place our invention refers to the construction of moulds which
are subdivided into numerous uniforın sized and shaped cells or compartments, and
which is specially applicable for the production of geometrical patterns. This
consists in forming the retractile webs by the assemblage or combination side by
side of a number of short tubes of equal length; the tubes being of a geometrical
section or sections, for example square, rectangular, triangular or circular. Such
tubes can be combined together by being tightly clamped between the sides of the
mould frame, soldered or otherwise secured to each other. The tubes in any
one mould may be all of only one or of more sections.
We also propose to form removable grid moulds by taking a number of such
tubes all of one uniform section; for example, say a right angled triangle one
inch on the sides, and to secure them together within the mould frame as just above
described. With such retractile or grid moulds, it will be evident that by merely
using stencils or other. equivalent distributing device of different designs, and
charging the tubes or cells through the same, different designs can be produced
from the same mould or moulds. To facilitate the removal of the grid moulds
without disturbing the fabric material, the webs formed by the tubes may be made
to taper, i.e. become narrower towards the bottom by stamping or filing.
3. In the third place our invention refers to the use and construction of
cylindrical stencils for the distribution of the material variously coloured, so as to
fill the moulds in proper position on a base fabric or base material, or such as are

page_text: above described or more particularly retractile web moulds such as are referred to
in the Specifications of Letters Patent No. 18469 of 1894 and No. 12433 of 1895.
a. In our present invention the stencil cylinder is formed as a thin hollow
-cylinder. The walls of the cylinder are perforated with numerous openings,
which in any one cylinder correspond generally with, but not necessarily of the
exact or even approximate size and shape of the spaces of the pattern all of
the one or other colour. Where used for charging compartiment moulds, the
openings may be less in size, and may correspond only roughly in shape with
the corresponding spaces in the pattern. For example round holes may be made
in the stencils for charging square or other shaped compartments.
The cylinder is placed transversely across the bed of the linoleum machine, with
the under surface of the cylinder touching or almost touching the top edges of the
webs of the moulds. The cylinder is provided at each end with a stiff rim,
hereinafter referred to as the end rims. The rims are each provided with a
-circular projection or recess, fitting in or on a corresponding recess or projection
-on or in a bearing or frame which carries the charging apparatus; ie. the
cylindrical stencil; so that it can be rotated, but is incapable of end movement.
Or the end rims or the stencil cylinder may be carried by antifriction rollers
of suitable length, mounted in bearings in the bearing frame, and placed on each
side of the lower half of the cylinder, but leaving the bottom clear so as to
-come close to the top of the mould webs.
The rotation of the cylinder may be effected by means of a toothed wheel or
wheels, attached to the end rim or rims or other connection of the stencil cylinder;
the said wheel or wheels being geared with a rack or racks on the side or sides of
the mould frames or other part carrying the moulds. The rotation must be such,
that the surface speed of the stencil cylinder is exactly the same as the speed of
the moulds beneath it. For this reason the point of contact of the pitch lines of
the aforesaid wheel aud rack should be in line with the line of contact of the
stencil cylinder and the top of the mould webs. Should it be considered necessary
--or desirable in order to preserve an even flow of material in the lower part of the
stencil cylinder, that the cylinder should be continued undiminished in diameter
past or to the outside of the bearing frame, the above mentioned condition as to
the position of the point of contact of the pitch lines cannot be fulfilled. We
propose to overcome this difficulty either by driving the cylinder from the opposite
end only, or by introducing a couple of pinions on an intermediate shaft or stud,
with diameters varying in the proportion which the outside diameter of the stencil
cylinder bears to the diameter of the toothed driving wheel attached to it.
We may however form the end or ends of the stencil cylinder beyond the
perforations conical, so as to permit of a toothed driving wheel with a pitch
diameter equal to the diameter of the stencil cylinder being attached to the
latter in such a position that it can be geared directly with the rack; the worm
conveyor hereafter mentioned being continued through this portion and tapered
if necessary to carry off the surplus material. Or other conveying mechanism may
be adopted.
b. In order to obtain a free and regular feed of the fabric material through the
perforations of the stencil eylinder when the perforations come about the line of
contact of the stencil cylinders and the top of the webs, we cause the fabric
material to be fed in a stream in a transverse direction, (i.e. at right angles to the
motion of the moulds) over or along a slit placed over the inner surface of the
-cylinder stencil plates about or close to the said line of contact. This we effect in
the following manner.
In the lower part of the stencil cylinder is provided a worm conveyor, carried in
bearings on the bearing frames and driven by any suitable or convenient meaus.
This conveyor is placed within a trough or between shields forming a trough,
which touches or almost touches the interior of the cylinder along two sides of a
slit formed in the bottom of the trough parallel to and at or near the before
mentioned line of contact. The front edge of the slit may be undercut to

page_text: facilitate the passage of the linoleum material through the same. The back edge-
is preferably knife shaped, to prevent any material being carried by the cylinder
past the slit and then dropping inopportunely into the moulds. The sides of the
trough or shield are carried upwards sufficiently far to prevent inopportune passage
of the material through the perforations of the cylinder.
c. In order to avoid irregular feed of the material, due to the tendency where.
only one conveyor is used, of the material to become heaped up to a greater depth
at the commencing end, we provide means for feeding the conveyor at other parts
of its length besides at the commencement.
In the upper part of the stencil cylinder we provide a second worm conveyor,
carried and driven in a similar manner to the first, and preferably with its axis
slightly towards that side of the cylinder corresponding to the descending side of
the lower conveyor. The upper conveyor likewise works in a trough. casing or
tube, hereinafter termed the trough. The entering end of this trough com-
municates with the lower part of the feeding hopper, conveniently fixed to the
outside of the bearing frame. The opposite end of the trough stops short of the
opposite end of the cylinder, or is provided with a large aperture. The trough or
casing is provided at intervals with openings on its underside, which can be more
or less closed by means of short slides adjustable from the exterior of the cylinder.
by rods or other couvenient means. The fabric material is fed to the stencil
cylinder from the bopper, and is carried forward to the opposite end of the stencil
cylinder by the upper conveyor; where it falls to the trough of the lower
conveyor, and is traversed back over the above mentioned slit by the lower
conveyor; the greater part in its passage falling through the stencil openings..
By means of the adjustable openings in the underside of the top trough, the fabric-
material is arranged to cover the slit in the lower trough over its whole length to.
a uniform depth, whilst constantly moving in the length or direction of and over
the slit, ensuring a regular and uniform filling of the moulds; the device being in.
fact a compensating arrangement for the variation in the flow of the material due
to the varied sizes groupings of the openings in the stencil cylinder. This.
arrangement of two conveyors as will be evident may be employed for feeding
through flat stencils, the side shields of the lower conveyor corresponding to the
sides of the charging trough above the Hat stencils.
And in order that our invention and the manner in which the same is to be-
performed may be more readily and clearly understood, we have annexed hereto.
the accompanying sheets of drawings.
The endless apron pressing device is illustrated in Fig. I as applied to a flat bed.
machine, and in Fig. 2 as applied to a rotary machine.
In both figures the same reference letter is used to indicate the same or
corresponding part.
A indicates the mould, which is provided with core pieces and retractile webs
(not shewn in detail) as described in the Specifications of Letters Patents No. 18469.
of 1894 and No. 12433 of 1895; or the mould may have a solid bottom, on which
the coloured design has been moulded in loose removable pattern grids, which are
removed before reaching the apron pressing device. In the former case the
retractile webs may be drawn down either before or during the pressing operation
by any of the means mentioned in the aforesaid specifications. B is the bed upon
which the moulds A are supported and carried. a is the endless band or apron,.
carried by means of the rollers b and c, and kept tight by the tightening roller d.
The apron a is moved in the direction indicated by the arrow, (an arrow also.
indicating the direction of the travel of the moulds), by the rotation of one or both
of the rollers baud c; which are driven by any convenient gear from the
mechanism giving motion to the moulds, or from the moulds themselves; e.g. a
rack on the sides of the moulds gearing with toothed wheels on the shaft of one or
both of the rollers b and c. The tightening roller d may be pressed against the
apron or band a by any convenient means, e.g. springs fitted to the bearings of the

page_text: axle of the roller d. The roller b is carried at such a height, that the lower side
of the apron or hand a on its underside is elightly above the level of the top of the
uncompressed material C in the moulds; whilst the roller e is supported at such a
height, that the lower side of the apron or bend a on its underside is at the level
of the top of the compressed linoleum material C. A metal backing e Fig. 1, or
supporting rollers f, indicated in Fig. 1 by dotted circles, may be provided for
keeping the band or apron a up to its work if found desirable.
This device may be employed either to compress the linoleum material to
consolidation, ar merely to compress it to adhesion; the subsequent compression
to consolidation being effected in a separate press.
The construction of moulds where the retractile webs are formed by the assemblage
of a number of short tubes of equal length is illustrated in Figs. 7 and 8 in
sectional elevation and in plan for the case where the 'cumpartments or cells are
square in section; and in plan in Fig. 9 where the compartments or cells are
triangular in section. Fig. 10 is an isometrical view of a web section, inverted,
and broken away at one of the corners to shew the subdivisions of the section,
(corresponding to Figs. 7 and 8).
The bed plate a of the mould is completely covered by a number of foundation
plates, of uniform size and shape; which are secured in position by screws
inserted from the underside of the bed plate. d are core pieces, which may
comprise a number of sub-cores, as shewn more clearly in Fig. 11, or they may be
separate and independent as illustrated in Fig. 12. The cores or core pieces d'are
made taper in the shanks, and provided with a conical or cylindrical end e fitting
tightly in holes formed for them in the foundation plate b. Other methods of
securing the cores to the foundation plate may however be used. When arranged
groupwise as shewn in Fig. 11, the core piece is cast with vertical slits by means
of the core bars shewn in Fig. 13. After being cast, the top of the core piece is
sawn through to the slits f, the width of the saw cuts g being just sufficient to
permit of the retractile welis moving without undue friction. The retractile websi
are formed by the assemblage of a number of tubes h, Fig. 10, square in section
and of equal length. Each of these tubes & is subdivided in its upper half by an
assemblage of small tubes i, of half or about half the length of the larger tubes h,
forming a web section, in plan of the same size as one of the foundation plates b.
Instead of making both the larger and the smaller divisions of the web section of
Lubes, the walls of the one or the other may be made of crorsing and interlocked
strips of metal; the strips running in one direction having alits to half their depth
in the top half, those crossing them having the slits in the lower half, na shewn in
Fig. 14.1 A pusher pin' or pins is attached at the under edge of some of the
webs, and holes are provided in the foundation plate for the pusher pin to be passed
through and attached at its lower end to the cross bar or plate k corresponding to
the cross bars lettered in Specifications Nos. 18469 of 1894 and 12433 of 1895.
Figs. 12 and 15 are respectively a core piece and web tube of triangular section,
and correspond to Figa. 9 and 8 in the drawings of Specification No. 12433
of 1895.
In the case of pattern grid moulds, the tubes are merely soldered or clamped
together in a frame.
Our improved cylindrical stencil filling device is illustrated in end elevation
in Fig. 3, in longitudinal section (one end) in Fig. 4, and in cross section in Fig. 5.
Fig. 6 illustrates the modification where the stencil eylinder is driven direct from
the mould rack.
g indicates the stencil cylinder, provided with openings A, and carried by the end
rim or ring i. One side of this ring fits in the groove or recess of the fixed bearing
frame j. As shewn most distinctly in Fig. 5 this cylinder g is carried at such a
height, that it just clears or touches the tops of the vertical webs of the moulds,
(in the case where the webs are retractile, when these are set up). In place of
carrying the cylinder 9 by end rings or bearings, the cylinder may be carried on
antifriction rollers as indicated by dotted circles in Fig. 5, extending more or less

page_text: the full length of the cylinder. The cylinder is driven at the same surface speed
ae the moulds by means of teeth on the rim i gearing (directly as shewn in Fig. 6)
with the rack m attached to the mould bed or frame n; the end of the cylinder
(g Fig. 6) being formed conical to permit this direct driving. Or where the
cylinder is not coned at the ends, a pair of pinions o are provided on the short
shaft or stud p, the diameters of the pinions being in the same ratio as the
diameters of the stencil cylinder and the toothed wheel attached to it; an
intermediate wheel 7 being required to obtain the proper direction of the rotation
of the cylinder.
In the upper part of the cylinder is provided a worm conveyor r, and a trough
the end of the conveyor shaft and the trough being carried from the hearing
frame j, as also the hopper t; from which latter the linoleum material is delivered
to the trough and conveyor r. In the lower part of the cylinder g is provided
the lower conveyor i, the ends of the conveyor shaft a being carried in bearings
formed on.or attached to the bearing frames j. On both sides of the conveyor are
provided shields e and te, forming a trough, and to prevent the passage of linoleum
material through the openings of the stencil cylinder except when the openings
are immediately beneath the long slit formed by the two lower ends of the shields
and . The back shield to is bent round the conveyor some distance, and its lower
end is provided with a flexible or elastic blade or knife edge; which presses
against the interior of the cylinder in such a manner as to scrape off any linoleum
material which has attached itself to the cylinder and which would be liable to
drop inopportunely through the stencil openings; the curved portion of the shield
serving to throw back the material to the front side of the conveyor.
In order to compensate for the variation in the flow of the material through the
openings of the stengil cylinder due to the variations in the size or grouping of
the openings, and to avoid heaping up of the material at the commenting end of
the conveyor w, the trough of the upper conveyor is provided with one or more
openings on the underside, which are provided with shutters y, adjustable from
the exterior by rods z or other means, so as to permit of part of the material from
the upper troughs to be fed to the lower conveyor w. The linoleum material is
traversed along the upper trough in the direction indicated by the arrow, and the
material which does not fall through the openings e on reaching the opposite end
of the cylinder a falls to the bottom of the cylinder between the shields v and 10
and is traversed back by the conveyor u; the surplus escaping down the shoot 1,
whence it is returned by any convenient means to the hopper t.
The opposite direction of the flow of the two streams of linoleum material is not
essential to produce a uniform and regular filling of the moulds. Both streams
may be fed with a surplus of material from the saine end and traversed in the same
direction.
Instead of the trough and shields and w, one or both of them may be replaced
by a pipe enclosing the conveyor and provided with openings or a slit; the
shutters (y) may then be replaced by cylindrical sleeves inside or outside the pipe,
having an opening in each, which is brought opposite or away from the opening (a)
in the pipe by a rotary motion; or if the sleeves have no openings, the opening.
may be opened and closed by a longitudinal movement of the sleeves.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. In linoleum machinery in which inlaid linoleum is moulded in moulds formed by
retractile webs or loose removable grids the use of an endless apron or band
pressing device substantially as herein set forth and illustrated in Figs. 1 and 2
for the purpose of compressing the linoleum material to adhesion or
consolidation.
2. In linoleum machinery in which inlaid or through linoleum is moulded in
moulds formed by retractile webs the construction of said webs by the assemblage
B

page_text: of a number of short tubes of uniform length or lengths and section or sections,
substantially as herein set forth and illustrated.
3. In linoleum machinery in which inlaid or through linoleum is moulded in
loose removable pattern grid moulds the construction of said moulds by the
assemblage of a number of short tubes of uniform length and section or sections.
4. In linoleum machinery in which inlaid or through linoleum is moulded in
retractile web moulds, the construction of said moulds substantially as herein set
forth and illustrated in Figs. 7 to 15. of the accompanying drawings.
5. Apparatus for automatically charging the compartment moulds of linoleum
machinery through stencils characterized by the use of two troughs or casings in
the lower of which a stream of linoleum material is traversed over a slit above the
stencil at right angles to the direction of the motion of the moulds, and in the
upper trough traversing the material in a parallel but preferably opposite direction,
this trough being provided with adjustable openings through which part of the
material is fed to the lower stream substantially as and for the purposes herein set
forth.
6. Apparatus for automatically charging the compartment moulds of linoleum
machinery characterized by the use of a trough in which a stream of linoleum
material is traversed over a slit above the stencil at right angles to the direction of
the motion of the moulds substantially as and for the purpose herein set forth.
7. The method of driving the cylindrical stencils of linoleum machinery
substantially as herein set forth and illustrated in Figs. 3 and 4 of the accompanying
drawings.
8. The construction of the cylindrical stencils of linoleum machinery with
conical driving ends substantially as and for the purpose herein set forth and
illustrated in Fig. 6.
9. Our improved cylindrical stencil charging apparatus for linoleum machinery
substantially as herein set forth and illustrated in Figs. 3 to 6.
Dated this 23rd day of December 1896
J. CLARK JEFFERSON,
30 Park Row, Leeds, Agent for Applicants.