Improvements in Machinery to be Employed in the Straightening of Metallic Tubes.
Year: 1895

page_text: Date of Application, 11th June, 1895
Complete Specification Left, 11th Mar., 1896-Accepted, 11th Apr., 1896
PROVISIONAL SPECIFICATION.
Improvements in Machinery to be Employed in the Straightening
of Metallic Tubes.
We, JAMES PILKINGTON of 19 Park Road, Aston, Machinist, and WILLIAM
PILKINGTON of "Wych Elm" Wylde Green, near Birmingham, Metallic Tube
Manufacturer do hereby declare the nature of our said invention to be as
follows:-
Our invention relates to improvements in machinery for the purpose of
straightening metallic tubes chiefly applicable to tubes which require a finished
surface.
The system hitherto employed for this purpose has been, after the formation of
the tube by rolling or drawing and finishing, to straighten the same by passing it
between metal rolls mounted in a suitable manner.
The two metal surfaces ciz.: the rolls and the tube coming in contact interferes
with or destroys the smooth or finished surface.
The object of our present invention is to obviate this, which consists in con-
structing the rolls with their surfaces of any yielding material other than the
metal which rolls are now made from.
If we employ the metallic rolls as hitherto employed for straightening tubes we
should cover their surfaces with leather, felt, and such like substances.
Or we may construct and employ the rolls for straightening tubes of wood,
and if required cover their surfaces with a material as above set forth; or we
may construct the said rolls from any suitable material other than metal or wood.
By preference we should mount these rolls (constructed as above set forth)
upon spindles or shafts running at an angle or incline one with the other (that is
to say not parallel) in the usual housings.
We do not limit ourselves to the mode of application of the above constructed
rolls nor do we confine ourselves to the number of spindles or shafts, or to the
number of our above described rolls to be affixed thereon, nor to the shape or
configuration of these said rolls.
Dated 11th June 1895.
THOS. KENDRICK,
3 Cherry Street, Birmingham, Agent.
COMPLETE SPECIFICATION.
Improvements in Machinery to be Employed in the Straightening
of Metallic Tubes.
We JAMES PILKINGTON of 19 Park Road Aston Machinist and WILLIAM
PILKINGTON of Wych-Elm Wylde Green near Birmingham Metallic Tube
Manufacturer, do hereby declare the nature of our said 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 improvements in machinery for the purpose of

page_text: straightening metallic tubes chiefly applicable to tubes, which require a finished
surface.
When the tube has been formed by rolling drawing, and finished it requires to
be straightened and this has been effected hitherto by passing the same through
metal rolls suitably mounted; but, the contact of the metal surface of the rolls
coming in contact with the smooth or finished surface of the metal tube damages
the same and to obviate this is the aim and object of this our present invention,
which we effect thus:-
If we employ metallic rolls for the straightening of tubes of the kind hitherto
used for this purpose, then we should cover their surface with leather, felt and
such like yielding substances, or we may employ for our purpose rolls made of
wood mounted upon iron spindles or rolls made of any suitable material other than
metal or wood mounted in like manner and if required cover their surface with
leather felt and such like yielding substances.
We may cover the surface of these rolls as above described with one thickness
of leather felt and such like yielding substances, or we may use two or more
thicknesses and vary the material.
The rolls constructed as above set forth may be of any shape or configuration or
any number of rolls upon or in connection with their spindles, or shafts, and
mounted as the ordinary rolls usually are, but by preference upon spindles or shafts
running at an angle or incline one with the other (that is to say not parallel).
And in order that this our said invention may be more readily understood we
will now proceed to describe the same with the aid of the accompanying sheet of
drawings.
The same letters of reference denote the same parts in every figure in which
they occur.
Figure 1 is a view longitudinal section of a metallic roll, shewing one thickness
of leather or felt or other covering and constructed according to our invention.
Figure 2 is a cross section view of same.
Figure 3. is a view longitudinal section of a wooden roll, with iron spindle, and
constructed according to our invention.
Figure 4. is a cross section view of same.
Figure 5 is a view longitudinal section of a wooden roll, with iron spindle,
shewing one thickness of leather, or felt, or other covering and constructed
according to our invention.
Figure 6 is a cross section view of same.
Figure 7 is a view longitudinal section of a composite roll, with iron spindle and
constructed according to our invention.
Figure 8 is a cross section view of same.
Figure 9. is a view longitudinal section of a metallic roll shewing two
thicknesses of leather, felt or other covering, and constructed according to our
invention.
Figure 10. is a cross section view of same.
Figure 11, is a view longitudinal section of a wooden roll, with iron spindle,
shewing two thicknesses of leather, felt or other covering and constructed according
to our invention.
Figure 12 is a cross section view of same.
Figures 1 and 2 a. is the metallic roll and 6 is the covering, and the spindle.
Figures 3 and 4, d is the wooden roll uncovered and c is the spindle.
Figures 5 and 6, d is the wooden roll 6 is the covering and c is the spindle.
Figures 7 and 8, e is the composite roll and c is the spindle.
Figures 9 and 10 a is the metallic roll and b b two thicknesses of covering and o
is the spindle.
Figures 11 and 12 d is the wooden roll and b b two thicknesses of covering and o
is the spindle.
We have illustrated our invention upon the accompanying sheet of drawings in
its simplest form but we do not limit ourselves, neither to the shape of the rolls,

page_text: nor to the number of rolls we may employ nor to the mode of mounting or setting
the same on their spindles and their housings for the purpose of straightening
finished metallic tubes, our object being the construction of rolls, or the covering
of rolls in a manner and with a material that shall not be injurious to the finished
surface of the metallic tube in the process of straightening.
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 :-
In improvements in machinery to be employed in the straightening of metallic
tubes."
1. In metallic rolls, the covering of the surface with one or more thicknesses
of leather, felt and such like yielding substances substantially as herein before
described.
2. The construction of wood rolls substantially as hereinbefore described.
3. In wood rolls the covering of the surface with one or more thicknessess of
leather, felt and such like yielding substances, substantially as hereinbefore
described.
4. The construction of composite rolls substantially as hereinbefore described.
5. In composite rolls the covering of the surface with one or more thicknesses
of leather, felt and such like yielding substances substantially as hereinbefore
described.
6. The construction, application, and combination of parts forming rolls
substantially as and for the purpose hereinbefore described in the foregoing
Specification and illustrated by the accompanying sheet of drawings.
Dated 11th ML 1000
THOS. KENDRICK,
3 Cherry Street, Birmingham, Agent.
THOS. KENDRICK,
3 Cherry Street, Birmingham, Agent.