Improvements in the Manufacture of Metallic Tubes, Nuts, Hollow Shafts, Columns, Piles and the like.
Year: 1899

page_text: Date of Application, 28th Feb., 1899-Accepted, 8th Apr.,
1899
Improvements in the Manufacture of Metallic Tubes, Nuts, Hollow
Shafts, Columns, Piles and the like.
We, SAMUEL VANSTONE, of No. 1, Ashton Street, Mechanic, and BERNARD
MCGUINNESS, of 109, East Avenue, Real Estate Broker, both in Providence, Rhode
Island, United States of America, 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;-
-
This invention has relation to certain new and useful improvements in the
manufacture of metallic tubes, nuts, hollow shafts, columns, or piles; the object
being to provide a hollow shaft or tube composed of two or more separate pieces
of steel or metallic iron,. fitted together longitudinally, and then welded to form
an integral structure, thereby providing a hollow shaft or tube of great strength,
capable of use for car and locomotive axles, and for various other purposes, or
for a tubular stock which can be cut into lengths to form nuts.
In carrying out the invention, we take pieces, scraps, or billets of metal and
draw them out to form elongated sections A, A, B, B, as shown in cross section
in Fig. 1, of the drawings, the said sections being each provided with the external
longitudinal rib portion a. and an opposite internal rib portion b, and fit the
same to each other in the manner shown to build up a hollow shaft or tube
structure, the edges c, of the sections B, being made to abut the shoulders c¹,
of the adjoining sections A, A. These sections are temporarily secured to each
her by means of rivets h, near each end of the sections. They are then placed
in a furnace and subjected to a welding heat, after which they are removed and
passed through circumferentially grooved rolls, with a suitably grooved mandrel
in the bore d, of the tube, and are thereby rolled and drawn to the required
size and shape, thus forming a practically integral structure, having both
external and internal longitudinal ribs. Referring to Fig. 3, of the drawing
it will be seen that the sections A¹ A, B B₁, which are similar to those shown
in Fig. 1, are shaped to form when put together an hexagonal tube, the faces a¹
of the sections A, being shaped to fit the inclined faces 6', of the sections B¹;
which are of triangular form, the said sections A' being provided with shoulders
at c', which abut the edges c, of the said sections B', which are provided with
intermediate curved faces d', and in this case the ribs both internal and external
are dispensed with, the parts being secured to each other by means of the rivets h,
as in Fig. 1.
In both of the forms described it will be seen that the sections have overlapping
portions, terminating at their inner ends in abutting faces at an angle to the main
interfitted faces thereof, and that the said interfitted faces are non-radial.
Referring to Fig. 2, of the drawing, the two sections C, C, are provided with
the external ribs e, e, and the intermediate rib e¹, and with the internal rib f,
the said sections being secured together for heating in the furnace, by means
of the rivets g, g, near the ends of the said sections.
Referring to Fig. 4, of the drawings, the two sections D, D are shaped to form,
c

page_text: when put together, an hexagonal tube without either internal or external
flanges, and are secured to each other for the purpose of heating and welding
by means of the curved rivets h¹ h¹.
Referring to Fig. 5, which represents a cross section of a cylindrical hollow
shaft, the rivets j, which hold the sections E, E, together, are placed in recesses i,
formed at the edges of the said sections.
When the sections shown in Figs. 1 and 2, have been welded to form an integral
structure, we, in some cases, place the opposite ends in suitable sockets and twist
the hollow shaft F, so that the ribs f, may run in a spiral form, as shown in
the side view, Fig. 6, thus adding materially to the strength of the shaft by
reason of the inclined direction of the ribs.
It will be understood, that in so far as the external form of the sections is
concerned, this may be determined largely by the shaping and drawing rolls,
through which the article is passed after being welded, and consequently their
initial external forms may vary.
The forms shown in Figs. 3 and 4, may, if desired, be sawed into lengths to form
hexagonal nuts, and the invention provides means for the manufacture of such
nuts in a rapid and economical manner, while the ribbed form shown in Figs. 1
and 2, is designed for use for hollow shafts and various other purposes.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:
1. A tube, hollow shaft or pile, formed of interfitted longitudinal sections,
having the abutting inner edges and shoulders, substantially as described.
2. A tube, hollow shaft or pile, formed of four longitudinally interfitted
sections, welded and rolled-together,-the-opposite sections being of similar form,
two of such opposite sections having each a central portion forming two opposite
shoulders which are abutted by the longitudinal edges of the respective adjacent
sections, substantially as described.
3. A tube, hollow shaft or pile, formed of longitudinal sections having inter-
fitted overlapped portions terminating at their inner edges in short abutting faces
at an angle to the main interfitted faces of said overlapping portions, substan-
tially as described.
4. A tube or hollow shaft formed of longitudinally welded sections, and pro-
vided with external longitudinal flanges, substantially as described.
5. A tube or hollow shaft, formed of longitudinally welded sections, and
provided with both external and internal longitudinal flanges, substantially as
described.
6. A tube or hollow shaft formed of longitudinally welded sections, and
provided with spiral flanges, substantially as described.
7. A tube or hollow shaft formed of abutting dissimilar sections riveted to
each other, and rolled and welded to form an integral structure, substantially
as described.
8. A tube or hollow shaft, formed of two sections having a semi-circular
interior form, and riveted to each other at their abutting opposite edges, and
rolled and welded to form an integral structure, substantially as described.
Dated this 28th day of February 1899
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicants.