THE APPLICATION OF A CERTAIN MATERIAL IN COMBINATION WITH IMPROVED MEANS AND APPLIANCES FOR THE MANUFACTURE OF TUBULAR AND HOLLOW CYLIN- DRICAL BODIES WHERE GREAT STRENGTH AND LIGHTNESS IS REQUIRED
Year: 1866

page_text: PROVISIONAL SPECIFICATION left by William Deakin and John Bagnall
Johnson at the Office of the Commissioners of Patents, with their
Petition, on the 3rd March 1865.
We, WILLIAM DEAKIN, of Great Barr, in the County of Stafford, Ironmaster,
and JOHN BAGNALL JOHNSON, of Tettenhall, also in the County of Stafford,
Roll Turner, do hereby declare the nature of our said Invention for
"THE APPLICATION OF A CERTAIN MATERIAL IN COMBINATION WITH IMPROVED
MEANS AND APPLIANCES FOR THE MANUFACTURE OF TUBULAR AND HOLLOW CYLIN-
DRICAL BODIES WHERE GREAT STRENGTH AND LIGHTNESS IS REQUIRED," to be as
follows (that is to say):-
Inasmuch as our application for Letters Patent for the manufacture of
ordnance, whole or in parts, (No. 2795, dated the 30th October) was for im-
provements in the means and appliances described in Patents granted to
James Thompson (Nos. 1023 and 1024, 1863; No. 139 and 2784, 1864,) of
which we are by purchase the registered proprietors), as well as an application
for Letters Patent made by us in May last (No. 1341) conserved to us by patent
right the improvements discovered by us since the dates herein-before stated,
so also we are desirous that the like advantages (as being further important
improvements upon a Patent granted to the said James Thompson on the
22nd of April 1864, No. 1018, entitled "Certain Improvements in the Manu-
facture of Hollow Axles and Axle Boxes, and which said Improvements are
also applicable for the Manufacture of Locomotive and other Tubes, Hydraulic
Cylinders, and such like Tubular Bodies, where great Strength and Solidity is
required,") shall be conserved to us.

page_text: But with a view of being explicit, and that our further important improve-
ments may be fully comprehended and understood, we will observe that they
have for their object the adaptation and use of such tubular bodies in places or
positions where great strength with lightness is of importance.
And these improvements are comprehended, first, in producing them from
the homogeneous metal known as Bessemer's steel, and the taking of such
metal in sufficient quantities or parts, according to the purpose for which it
may be desired, as for shafting, steam pipes, cyclinders, piston rods, and other
such like purposes, and drilling and punching, piercing or perforating, and
treating the said mass by the means and appliances described in the Patents
herein-before referred to, together with the further operations in connection
with suitable mandrils of tilting, swaging, rolling, or otherwise operating on
the same to reduce it to the shape and dimensions required, whether regular
or irregular, together with the formation of flanges, bearings, or journals, so
that a tube, cylinder, or hollow cylindrical bodies or parts may be formed and
fashioned according to the purpose desired in one entire seamless piece without
weld of any kind. And this we effect, as described in our last application of
the 30th of October, by means and appliances which admit of a mass of any
given size being manipulated for the purpose of drilling, or drilling and
punching, or punching, piercing, or perforating, and subsequently reduced and
straightened when desired, or bent to any regular or irregular curve, as well
as the further operation of flanging, indenting, or setting up projections,.
which may be done by pressure or a blow or succession of blows, with a
suitable rest or seat, clips, guides, dies, or clamps for holding such tubes
during the said operation, so that the flange, projection, and indentations may
be sufficiently formed and made true, either for further smoothing or levelling
for their being jointed together, or set up and continued or united to any other
body or part by means of rivets or screws, as may be desired.