Improvements in Apparatus for Armouring India-rubber Hose and the like.
Year: 1894

page_text: Date of Application, 14th Apr., 1894
Complete Specification Left, 22nd Dec., 1894-Accepted, 16th Feb., 1895
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Armouring India-rubber Hose
and the like.
I, HENRY DANIEL CRISP, of The Hawthorn, Chadwell Heath, in the County
of Essex, Gentleman, do hereby declare the nature of this invention to be as
follows:-
My invention relates to improved apparatus for applying a spiral protecting
wire or armour to india-rubber and other flexible hose.
In carrying out the said invention I force the wire around the hose into a hollow
rotating mandrel or die through which the hose passes the said die being perfectly
smooth on its interior surface and being caused to rotate at the same velocity as
the wire is forced into same, thus avoiding friction between the two..
The wire when being forced into the rotating die is guided by a metal plate of
the required shape to give the wire the required pitch and I sometimes employ in
conjunction with the plate rolls.
I may in certain cases use more than one forcing apparatus arranged around the
said rotating die, and thus use more than one wire for the purpose of armouring
the hose.
For supporting the hose during the process of armouring, I employ two or more
rotating rolls or cylinders, one set to support the hose before being armoured and
the other set to support the hose after the armour is on and as it issues from the
said hollow rotating die or mandrel, the said rolls or cylinders being caused to
rotate at the required speed by any suitable means. To keep the hose out straight
and in contact with the supporting rolls or cylinders it may be filled with, say,
compressed air or water, or I may employ an iron or other rod of an easy fit,
inside the hose with the object of keeping the hose out straight and in contact with
the said rolls.
With large and heavy hose such as suction hose I may use an endless band
passing tightly around the hose, and in contact with the supporting rolls with the
object of driving the hose round or causing it to rotate, and thus assist in the
operation of coiling the wire.
In cases where space will not allow of supporting the hose out in a straight line
to its full length, the said hose may be coiled on reels or cylinders, such reels or
cylinders being mounted in revolving frames supported on hollow trunnions, the
hose passing from one reel through the trunnions to the rotating mandrel or die and
being again coiled up after armouring on the opposite side of the die on the other
roll which is caused to rotate so as to coil up the hose as it passes from the
armouring die.
Dated this 14th day of Anril 1894.

page_text: COMPLETE
SPECIFICATION.
Improvements in Apparatus for Armouring India-rubber Hose
and the like.
'
I, HENRY DANIEL CRISP, of The Hawthorn, Chadwell Heath, in the County
of Essex, Gentleman, 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:―
My invention relates to improved apparatus for applying a spiral protecting
wire or armour to india-rubber and other flexible hose.
In carrying out the said invention 1 force the wire around the hose into a hollow
rotating mandrel or die through which the hose passes the said die being perfectly
smooth on its interior surface and caused to rotate at the same velocity as the wire
is forced into same, thus avoiding friction between the two.
The wire when being forced into the rotating die is guided by a metal plate of
the required shape to give the wire the required pitch and I sometimes employ in
conjunction with the guide-plate rolls.
I may in certain cases use more than one forcing apparatus arranged around the
said rotating die, and thus use more than one wire for the purpose of armouring
the hose.
For supporting the hose during the process of armouring, I employ two or more
rotating rolls or cylinders, one set to support the hose before being arinoured and
the other set to support the hose after the armour is on and as it issues from the
said hollow rotating die or mandrel, the said rolls or cylinders being caused to
rotate at the required speed by any suitable means. To keep the hose out straight
and in contact with the supporting rolls or cylinders it may be filled with, say,
compressed air or water; or I may employ an iron or other rod of an easy fit
inside the hose with the object of keeping the hose out straight and in contact with
the said rolls.
With large and heavy hose such as suction hose I may usé an endless band
passing tightly around the hose, and in contact with the supporting rolls with the
object of driving the hose round or causing it to rotate, and thus assist in the
operation of coiling the wire.
To enable iny invention to be fully understood I will describe the same by
reference to the accompanying drawings, in which :-
Figure 1 is a sectional side elevation of a machine or apparatus constructed
according to the invention for armouring india-rubber hose or the like by means of
a single wire :
Figure 2 is a plan of the same; and,
Figure 3 is a section on the line 3-3, Figure 1, looking in the direction of the
arrow 1:
Figure 4 is a section on the same line looking in the direction of the arrow 2:
Figure 5 is also a section on the line 3-3, Figure 1, shewing the upper part of
the machine drawn to an enlarged scale; and,
Figure 6 is a sectional plan of Figure 5:
Figures 7, 8 and 9 are respectively an elevation, a plan and a horizontal section
of a detail:
Figure 10 is a vertical section of the apparatus adapted for armouring hose by
means of three wires ; and,
Figure 11 is an end view of the same:
Figure 12 is a view of a portion of the upper part of the machine drawn to an
enlarged scale; and,
Figure 13 is a section on the line 13-13, Figure 12.
Similar letters of reference indicate corresponding parts in the several figures.

page_text: a is the framing of the machine, and b is a bracket mounted thereon and
supporting the metal plate c for guiding the wire, the said metal plate being formed
with a hole therethrough having a trumpet mouth, as shewn most clearly in
Figures 6 and 9, and provided with a tubular guide (Figures 5 and 7) for the
wire and with a spiral face c' (Figures 6, 8 and 9) against which the wire presses
as it is forced through the guide tube d.
e is the hollow rotating mandrel or die which operates in conjunction with the
guide-plate c, the said mandrel rotating at a speed corresponding with that at which
the wire is fed into the guide-plate so as to prevent friction between the wire and
the interior of the said hollow mandrel.
fare feed-rollers which, as shewn in Figures 1 and 6, are grooved to receive
the wire in the nanner shewn in Figure 5 and force the same forwards into the
die e.
These feed-rollers ff are mounted upon two shafts 9,9 carried in n
headstock h, the said shafts being geared together by the gear-wheels h', h¹ in order
that they shall rotate at the same speed, and driven from the driving shaft i (having
fast and loose pulleys 20,10 thereon) through the medium of the pinion, the gear-
wheel, the second motion shaft, the gear-wheel mounted thereon, the
gear-wheel mounted upon an independent shaft and another gear-wheel
the shaft g of one of the feed-rollers.
upon
through
Rotation is imparted to the rotating mandrel e from the gear-wheel
the medium of the pinion j mounted on the shaft j, a wheel also mounted upon
the said shaft, a wheel mounted upon one end of a shaft carried in a bearing
and having at its other end a wheel imparting motion to the train of wheels ‚³‚³
the last of which is mounted or formed upon the end of a sleeve & mounted in the
framing and keyed or otherwise connected to the exterior of the rotating mandrele,
as shewn in Figure 1.
1. are rollers designed to support the length of hose being armoured in a
horizontal position during the operation of armouring, the said rollers, being
carried in the standards m, m'. n is a third roller which bears by its own weight
upon the tube being armoured and serves to hold the latter in contact with the
rollers 1, ', the said roller n being carried at its ends in slotted bearings o, o
in the standards m, m' and having its journals connected to levers p to permit
of raising the said roller a off the hose so as to allow of readily introducing a
fresh length of hose to be armoured. The said rollers 1, 2 and are driven by
means of an endless band which is arranged in the following manner, that is
to say, after passing over the top of the roller it passes down and beneath a
guide-roller r, thence over the roller l, thence around a guide-roller r, thence
under and around the roller n, thence over another guide-roller, thence down
and under another guide-roller and back to the roller.l. The band is driven
from the second motion shaft through the medium of the belt pulleys, the
belt and the belt pulley which is mounted upon the shaft carrying the guide-
roller r.
On the opposite side of the machine to that upon which the rollers 4, and n are
situated are arranged other rollers t, t on to which the armoured hose is delivered
as it passes through the rotating die or mandrel e, the said rollers t,t being
mounted in bearings on standards and being driven from the wheel through
the medium of the gear-wheel fixed or formed upon the elongated boss of the
said wheel and engaging with a wheel ' which is in gear with two pinions o³, 08
on the ends of the rollers t, t, as shewn in Figures 1 and 4.
to is an inclined table upon which several lengths of hose to be armoured can be
placed and which can be allowed one at a time to roll onto the rollers l, l' into
position for passing into the rotating die or mandrel as herein before described.
When two or more wires are to be applied I provide around the guide-plate ca
number of tubular guides d corresponding to the number of wires to be applied.
This arrangement is shewn in Figures 10, 11, 12 and 13 wherein I have shewn the
arrangement of three tubular guides d with three sets of feeding rollers f,f which
are connected by suitable gearing with the driving shaft i. In this arrangement

page_text: only one of the wires comes into contact with the guide-plate, the other wires being
guided by contact with the wire previously laid in a manner which will be readily
understood by reference to Figure 13 of the drawings.
It will be obvious that to enable a machine to armour hose of different diameters
it will be necessary to vary the speed of rotation of the hollow die or mandrel
relatively with that of the feed-rollers so as to get in all cases the same surface
speed. To enable this change of gearing to be readily effected I mount some of
the gearing on a pivotted plate similar to the tangent plate used for carrying the
screw-cutting wheels of a lathe, such plate being represented at .r, Figures 1, 2, 3
and in Figure 11. This plate as shewn in Figures 1, 2 and 3 is pivotted upon the
stud upon which the double gear-wheel and is mounted. By changing the
gear-wheel and moving the plate to bring the gear-wheel into engagement
with the said wheel it is obvious that the speed may be altered as required.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
-:
1. In an apparatus for armouring india-rubber hose the combination with a
guide-plate having a spiral face of a revolving hollow die or mandrel adapted to
allow the hose to be armoured to pass therethrough and designed to be driven at a
speed corresponding with that at which the armouring wire is fed into the die or
mandrel so that there shall be no relative movement between the wire and the
inner surface of the said die, substantially as described.
2. The manufacture and use of the improved apparatus for armouring hose
hereinbefore described and illustrated in Figures 1 to 9 of the accompanying
drawings.
3. The modification of my invention substantially as described with reference to
Figures 10 to 13 of the accompanying drawings for enabling two or more armouring
wires to be applied simultaneously, substantially as described.
Dated this 22nd day of December 1894.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.