IMPROVE- MENTS IN MACHINERY OR APPARATUS FOR MANUFACTURING INDIA-RUBBER TUBING
Year: 1867

page_text: LETTERS PATENT to Milton Hamer, of Manchester, in the County of
Lancaster, India-rubber Manufacturer, for the Invention of "IMPROVE-
MENTS IN MACHINERY OR APPARATUS FOR MANUFACTURING INDIA-RUBBER
TUBING."
PROVISIONAL SPECIFICATION left by the said Milton Hamer at the
Office of the Commissioners of Patents, with his Petition, on the
28th September 1867.
J, MILTON ПAMER, of Manchester, in the County of Lancaster, India-rubber
Manufacturer, do hereby declaro the nature of the said Invention for "IMPROVE-
MENTS IN MACHINERY OR APPARATUS FOR MANUFACTURING INDIA-RUBBER TUBING,"
to be as follows:-
My Invention consists in manufacturing india-rubber tubing by drawing
strips of the material through a trumpet-formed orifice, whereby the edges of
the said strips are brought together. The strip of material passes through
guides to the trumpet, and when bent round is conducted by tension rollers
from which it may be delivered to a drum, or allowed to gather in a coil.
When the tube is to be formed on wire I employ a trumpet-shaped or other
guide above the strip of india-rubber, and which conducts the said wire to the

page_text: strip, and the two then pass onward through guides to the first-inentioned
trumpet by which the turning of the strip is effected as above described. The
strips are cemented or heated as usual.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Milton Hamer in the Great Seal Patent Office on the
28th March 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, MILTON
HAMER, of Manchester, in the County of Lancaster, India-rubber Manu-
facturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-eighth day of September, in the year of our Lord
One thousand eight hundred and sixty-seven, in the thirty-first year of Her
reign, did, for Herself, Her beirs and successors, give and grant unto me, the
said Milton Hamer, Her special license that I, the said Milton Hamer, my
executors, administrators, and assigns, or such others as I, the said Milton
Hamer, my executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times thereafter during the
term therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN MACHINERY
OR APPARATUS FOR MANUFACTURING INDIA-RUBBER TUBING," upon the condition,
amongst others, that I, the said Milton Hamer, by an instrument in writing
under my hand and seal, should particularly describe and ascertain the nature
of the said Invention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said Milton Hamer, do hereby declare the
nature of my said Invention, and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following state-
ment and accompanying Drawings, that is to sny :-
My Invention consists in manufacturing india-rubber tubing by drawing
strips of the material through a trupi pet-formed orifice, whereby the edges
of the said strips are brought together; in the accompanying Drawing I have
represented suitable arrangements by which my Invention may be carried
into effect.

page_text: Figure 1 is a side view of the machine; Fig. 2 an end view, and there aro
also detached views of certain parts which will hereafter be referred to.
For the sake of convenience I will in the first place describe the machine
as applied to making india-rubber tubes which are formed upon coiled wire.
The machine is placed upon one end of a long table a such as is used for
making india-rubber tubes by hand in the ordinary manner. Upon the
bed 6 of the machine is frame c which carries a sliding piece d, the position
of which may be regulated vertically by a set screw e, and in this sliding
piece is mounted a roller f; the frame c also carries another sliding piece 9
which can be elevated or depressed and confined in any desired position by
a screw h. The piece 9 is furnished at top with a circular aperture i and
beneath it there are two transverse slits j, k, corresponding or nearly so to
the width of the strip of material which is to be niade into the required tube.
At is another frame which carries a block m capable of being raised or
lowered and of being held by a screw n; this block is shown detached at
Fig. 3, and is formed with a trumpet-shaped orifice o. Upon the frame
is also another sliding piece p provided with two curved slits q, r, also a
circular guide s, and capable of being adjusted upward or downward by a
screw t At u is a frame carrying a shaft, on which there are fast and loose
pullies v driven from any convenient source, and upon the same shaft is a
roller w, the periphery of which runs a little clear of a grooved pulley x, and
between which two surfaces the manufactured tube passes as will hereafter
be described; upon the shaft y is also a pulley
drives another pulley 1, on the axis of which
being in the same vertical plane as the pulley x.
view of the guide piece p, and Fig. 4 is a detached view of the guide g.
The operation is as follows:-The strip of india-rubber intended to form
the tube is placed as usual upon the table a, and the cement is applied in the
ordinary manner. A drum 3 is adapted to bearings carried by the table,
and on this drum a coil of tape is wound of about the same width as the
strip of india-rubber. The end of
together with the india-rubber
is passed over the roller ƒ through the slits j, k, through the other slits q, r,
and trumpet-shaped orifice o. By these means the india-rubber will have
been supported by the tape and will have been partially bent round by
passing through the slit q; at the same time the coiled wire drawn from auy
convenient source is passed through the orifices i, s, so as to accompany the
two strips, and the three are then drawn together through the trumpet-
shaped orifice o, by which means the india-rubber will be bent round upon
the enclosed wire, and so that the edges meet each other and become
this tape
which by means of a band
is a drum 2, the said drum
Fig. 8 includes a detached

page_text: cemented together as usual. A short length of tubing thus formed is drawn
forward along the periphery of the pulley x until it arrives in contact with
the pulley w, which then presses upon the tube, and the process which has
hitherto been conducted by hand becomes self-acting, the friction of the
pulley w drawing the pulley and delivering the tube into any conveniently
placed receptacle. Hitherto it has been explained that the supporting tape
accompanies the india-rubber tube, but when by the operation above described
a short length of the same has been conducted to the bite of the pulleys w, a,
the attendant separates the tape from the tube and conducts it around the
pulley w, and from thence to the drum 2 upon which it is wound, the india-
rubber tube passing off by itself as above mentioned; the band which drives
the pulley 1 is of such tension that it will slip if the tape is not delivered in
proportion to the surface motion of the drum 2. When the desired length
of tube has been produced the drum 2 with its tape is removed and placed
in the position of the other drum 3 which being now empty is adapted as
at 2; the course of the tape is shewn by the red line, the wire by the dotted
lines A, and the india-rubber by the blue line. In the above description
reference has been made to the production of tubes which enclose coiled wire.
If it be not intended to use the said wire the operation will be precisely the
same excepting that the guides i, s, will not be required; it will be observed
that the material bent into a tube passes upward from the trumpet-shaped
guide to the pulley a, its upper edge therefore is caused to bear against the
edge of the said guide, and the tension thereby effected causes the two edges
constituting the joint to be brought and closely cemented together, and this
tension may be regulated by shifting the frame by means of the screw 5.
If it be required to form a tube of more than one thickness of material, it
may be produced as above described, but it will be preferable to employ
guides in place of those shewn at q, r, and which are furnished with as many
slits as there are strips intended to be bent into the tube. For making this
description of tubing, as for instance what is commonly called india-rubber
hose, I arrange the curved slits q, r, after the manner, shewn at q,, in
the detached view Fig. 5, by which means the seams are effected not over
each other but at different longitudinal lines in the tube so as to break the
joint. The Drawing only shews two of these guide slits, but any number
may after the same manner be adapted round the circle, and thus a tube
composed of any number of strips of cloth and india-rubber may be made,
and with broken joints as at Fig. 6. In making this description of tubing
or hose pipe, I prefer to roll the united strips upon a maundril as sbewn
at Fig. 7, in which o represents the trumpet-formed guide which turns the

page_text: strips of material round. Upon this guide is mounted a mandril 8 which
extends through grooves formed in pairs of rollers 9, 10, the axes of which
one at right angles to each other; the preparatory guides are the same as in
the formerly described arrangement, and as the strips of material are not
united until they have passed through the trumpet o, the said maundril can be
carried as above described; rotatory motion is communicated to the rollers 9,
10, by the passage of the tube, or they may be driven from any convenient
part of the machine, and they therefore roll the tube upon the maundril as it
passes forward. The machine as above described is fixed at one end of the
table a, but it may be mounted so as to be capable of travelling thereon
after the manner of a slide rest of a lathe, so that the guides and trumpet
are caused to pass along the material, the operation being merely reversed,
and this method I prefer when manufacturing hose tube.
Having thus described and ascertained the nature of my said Invention,
and the manner in which the same is to be performed, I desire it to be
understood that I claim as secured to me under the above in part recited
Letters Patent, the production of india-rubber tubing by drawing strips of
material through guides or guides along the strips so as to bring the edges
thereof together.
In witness whereof, I, the said Milton Hamer, have hereunto set my
hand and seal, this Twenty-seventh day of March One thousand eight
hundred and sixty