IMPROVEMENTS IN THE MANUFACTURE OF ANCHORS
Year: 1878

page_text: LETTERS PATENT to William Richard Colbourn and Walter Somers, of
Hales Owen, in the County of Worcester, Manufacturers, for the Invention
of "IMPROVEMENTS IN THE MANUFACTURE OF ANCHORS."
Sealed the 13th June 1878, and dated the 4th January 1878.
PROVISIONAL SPECIFICATION left by the said William Richard Colbourn
and Walter Somers at the Office of the Commissioners of Patents on the 4th
January 1878.
"
WILLIAM RICHARD COLBOURN and WALTER SOMERS, of Hales Owen, in the
County of Worcester, Manufacturers. IMPROVEMENTS IN THE MANUFACTURE OF
ANCHORS."
This Invention consists in an improved method of making anchors by first
making the forgings, and then by means of a tilt, steam hammer, stamp, or hydraulic
pressure, stamping or compressing them together in moulds, and by this means
making them much sounder than a smith and his strikers can weld them.
The shank being forged in the ordinary way, except the head, which must be
forged in tools and the holes put in, the crown end is to be set down from a bulk of
iron so as to leave a good shoulder, and in such a form as to allow of its being
pressed into the arms without leaving too much vacancy, the shoulder going well up
against the arms.
The arms are forged in one piece, and the palms are welded on in moulds suitable
for various sizes, the crown part being left full to the size and then punched so as to
admit the end of the shank, as named above. This being done the end of the shank
and the middle part of the arms are put into a hollow fire or furnace made for that
purpose, so as not to get the arms hot where the palms are welded, on both shank
and arms, resting on supports of equal height. When hot the shank is pressed into
LDS21

page_text: the arms through the punching at the crown while in the fire, the parts thus being
to a certain extent welded before they come out of the fire; they are then brought
out and stamped or compressed together in swage tools under stamp tilt steam
hammer or hydraulic power.
Sheet 1 represents several views of an anchor; and Sheet 2 shews in plans and
sections the tools we use in making such an anchor, such tools being moulds, swages,
or dies.
The shank (A, B, Sheet 1, being forged in the ordinary way, except the head (A),
which must be forged in tools of the section seen at Figures 1 and 2, Sheet 2, and
the holes put in the crown end (B) is to be set down from a bulk of iron so as to
leave a good shoulder at (C, C,) and in such a form as to allow of its being pressed
into the arms (D, D,) without leaving too much vacancy, the shoulder (C, C,) going
well up against the arms (D, D).
The arms are forged in one piece, and the palms (E, E,) are welded on in moulds
suitable for various sizes and of the form shewn in plan Figure 3, and section,
Figure 4, Sheet 2, the crown part (F) being left full to the size and then punched so
as to admit the end (B) of the shank, as named above. This being done, the end
of the shank and the middle part of the arms are put into a hollow fire or furnace
made for that purpose so as not to get the arms hot where the palms are welded on,
both shank and arms resting on supports of equal height. When hot the shank is
pressed into the arms while in the fire through the punching at the crown (F), the
parts thus being to a certain extent welded before they come out of the fire; they
are then brought out and stamped or compressed together in swage tools of the
form seen in plan and cross section, Figures 5 and 6, Sheet 2, under tilt stamp steam
hammer or hydraulic power until the parts are thoroughly welded together.

page_text: Other forms of anchor of course require other and suitably designed swages or
dies.
Having thus described the nature of the said Invention, and the manner in which
the same is to be carried out, we claim the improvements in the manufacture of
anchors by forging the several parts separately and afterwards welding them together
in swages or dies under power hammers or pressure, substantially as herein more
fully set forth and specified.
In witness whereof, we, the said William Richard Colbourn and Walter
Somers, have hereunto set our hands and seals, this Twenty-seventh day of
June, in the year of our Lord One thousand eight hundred and seventy-
eight
WILLIAM RICHARD COLBOURN. (L.S.)
WALTER SOMERS.
(LS.)