Improvements in Machinery for the Manufacture of Wire Covered Hose Piping.
Year: 1893

page_text: Date of Application, 13th Mar., 1893
Complete Specification Left, 13th Dec., 1893-Accepted, 27th Jan., 1894
PROVISIONAL SPECIFICATION.
Improvements in Machinery for the Manufacture of Wire Covered
Hose Piping.
I GEORGE GARNER of Clayton Foundry Clayton near Manchester in the County
of Lancaster Engineer do hereby declare the nature of this invention to be as
follows:-
My said invention relates to improvements in the manufacture of hose piping
formed for example of india rubber or the like materials and covered with an
armour or external protecting coil of wire.
According to one method of covering hose piping with such a coil as at present
practised the hose is passed longitudinally through a hollow cylindrical die having
a spiral groove in its interior. By means of a pair of feed rolls the wire is forced
tangentially into the said hollow die in such a manner that it follows the con-
volutions of the said spiral groove and is thereby formed into a coil embracing and
partly bedding into the hose piping which is passed through the die.
As heretofore constructed it has been necessary in such machines to use means
for rotating the hose pipe in the die or while not rotating the hose pipe to rotate
the die itself while the hose pipe is being passed longitudinally through.
According to my said invention I use two or more pairs of feed rolls for
gripping and feeding forward the wire in combination with the hollow cylindrical die
hereinbefore referred to. By this means a more powerful grip on the wire is obtained
than is possible by the use of a single pair of feed rolls and thicker wire may be
manipulated. The most important advantage however which I gain by my said
invention is that I am enabled to force the wire into the internal spiral of the
cylindrical die with such an amount of pressure as to overcome the friction of the
hose piping on the internal surface of the cylindrical die and to cause it to rotate
as it is covered by the coil without using any special mechanism for effecting that
purpose.
Dated this 10th day of March 1893.
EDWARD TURNER WHITELOW,
70, Deansgate, Manchester, Agent for the Applicant.
Improvements in Machinery_for the Manufacture of Wire Covered
Hose Piping.
I GEORGE GARNER of Clayton Foundry, Clayton, near Manchester, in the
County of Lancaster, Engineer, 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 said invention relates chiefly to improvements in the manufacture of hose
piping formed for example of indiarubber or the like materials and covered with an
armour or external protecting coil of wire.
According to one method of covering hose piping with such a coil as at present
LD

page_text: practised the hose is passed longitudinally through a hollow cylindrical die having
a spiral groove in its interior. By means of a pair of feed rolls the wire is forced
tangentially into the said hollow die in such a manner that it follows the con-
volutions of the said spiral groove and is thereby formed into a coil embracing and
partly bedding itself into the hose piping which is passed through the die.
As heretofore constructed it has been necessary in such machines either to
provide means for rotating the hose pipe in the die or in case the hose pipe is
not rotated to rotate the die itself while the hose pipe is being passed longi-
tudinally through.
According to my said invention I use two or more pairs of feed rolls for
gripping and feeding forward the wire in combination with the hollow cylindrical
die hereinbefore referred to, the said feed rolls are geared together in order that
they may rotate at the same speed.
By this means a more powerful grip on the wire is obtained than is possible
by the use of a single pair of feed rolls and thicker wire may be manipulated
and the wire is forced into the cylindrical die with sufficient pressure to overcome
the friction of the hose piping on the internal surface of the cylindrical die and
to cause it to rotate without using any special mechanism for effecting such
rotation.
The accompanying drawing illustrates a coiling machine made in accordance with
my said invention. In the said drawing Figure 1 is an elevation partly in section,
In the said
Figure 2 is a plan partly in section and Figure 3 is an end elevation.
figures a is the coiling die carrier mounted on pillars a¹ a² and provided with
clamping screws a³ for securing it at such a height as that the wire may be fed to
the internal surface of the die. By means of the set screw at the die holder is
raised or lowered so that whatever size of coil may be formed the wire may enter
tangentially thereto. Grooved dies of various diameters and having grooves of
various pitches are inserted in the said die carrier.
с
In the example illustrated two pairs of feed rolls 661 are used. The pairs of
feed rolls are geared together by the spur wheels c c and the pinion c³. The latter
is mounted on the same shaft as the spur wheel which is driven from the pinion c
on the driving shaft c°. The latter carries the driving cone c'. The top and
bottom feed rolls of each pair are geared together by the pairs of toothed
wheels 66 secured to the axles of the feed rolls which are carried in bearings
mounted on the pillars. The lower bearings rest on bushes or shoulders on the
pillars The upper bearings are separated from the lower bearings by spiral
springs which continually tend to lift the bearings carrying the upper feed rolls.
Set screws provided with hand wheels or other convenient means for rotating
them are used for setting and securing the upper feed rolls in their proper position
to suit the section of wire being operated on.
The dotted line d indicates the course of the wire being operated on.
A suitable die having been inserted in the die holder a the end of the hose pipe
to be covered is inserted in the die and the wire d is pushed in the die where it
follows the spiral groove and embraces the hose pipe being partly embedded
therein. Where two or more pairs of feed rolls are used the wire is pushed so
forcibly that it overcomes the friction of the hose pipe against the interior of the
die and causing it to rotate takes it along through the die.
To form spiral springs or coils of any desired length the wire is fed to the empty
die in the usual manner but owing to two or more feed rolls being employed wire
or rod of much greater thickness can be coiled than has heretofore been possible.
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-
I. The machine for covering hose piping or coiling wire as set forth and shown
in the accompanying drawings.

page_text: II. The combination with a die to which the wire is fed tangentially of two
or more pairs of feed rolls as and for the purpose set forth.
Dated this Twelfth day of December 1893.
E. T. WHITELOW, A.M. Inst. C.E.,
70, Deansgate, Manchester, Agent for the Applicant.