Improvements in Anchors.
Year: 1890

page_text: Date of Application, 20th May, 1890
Complete Specification Left, 19th Feb., 1891-Accepted, 4th Apr., 1891
PROVISIONAL SPECIFICATION.
Improvements in Anchors.
I, WILLIAM LUMSDON BYERS, of 51, West Sunniside, Sunderland, in the
County of Durham, Chain and Anchor Manufacturer, do hereby declare the nature
of this invention to be as follows
It has been found in practice that anchors constructed in accordance with the
Specification of Patent No. 17319 dated 16th December 1887, while answering well.
where the ground or other hold is hard or of a rigid nature, are not so efficient
when mud, slime, or other non-resisting medium forms the hold for the anchor, as
is frequently the case.
Now the object of my present invention is to construct a good strong anchor
which will be equally effective in either a soft or a hard medium.
With this object I form a partial cylindrical or curved surface on the inner
surface or front of the cross head, the said cylindrical surface, or that part nearest
the shank of the anchor, forming a cup or scoop which when embedded in the
ground or other medium offers a firm hold.
The curved or partially cylindrical surface extends longitudinally along the
inner part of the crosshead from fluke to fluke being of course partially interrupted
in the centre, by the double eye which is to receive the shank.
I also strengthen the crosshead and trips by longitudinal and transverse webs
formed in one with, or rigidly attached to, the underside of the crosshead and.
trips.
Did th: 00th day of May 1800
CASTLE SMITH,
Invention" Office, 54, Fleet Street, London, E.C.,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Anchors.
1, WILLIAM LUMSDON BYERS, of 51, West Sunniside, Sunderland, in the
County of Durham, Shipowner and Anchor Manufacturer, 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 :-
It has been found in practice that anchors constructed in accordance with the
Specification of Patent No. 17319 dated 16th December 1887 while answering
well where the ground or other hold is hard or of a rigid nature, are not so efficient
when mud, slime, or other non-resisting medium forms the hold for the anchor, as
is frequently the case.
Now the object of my present invention is to construct a good strong anchor
which will be equally effective in either a soft or a hard medium.
With the object of increasing the holding power I form a partial cylindrical or
curved surface on the inner surface or front of the cross head, the said cylindrical
surface, or that part nearest the shank of the anchor forming a cup or scoop which
when embedded in the ground or other medium offers a firm hold.
The curved or partially cylindrical surface extends longitudinally along the
inner part of the cross-head from arm to arm being of course partially interrupted
in the centre by the double eye which is to receive the shank.
I also strengthen the cross-head and spurs by longitudinal and transverse
5 Umina fi21

page_text: webs formed in one with, or rigidly attached to, the underside of the cross-head
and spurs.
In the accompanying drawings which are furnished in illustration of my
invention,
Figures 1 and 2 are respectively front and end elevations of my improved
anchor;
Figure 3 is a plan of the underside of the same;
Figure 4 is a section on the line X X, and
Figure 5 is a section on the line Y Y Figure 1.
A. A. are the strengthening webs or ribs on the underside of the cross-head B
and spurs C. When the cross-head and spurs are cast in one I prefer to cast these
ribs or webs A with them so that they form integral parts of the cross-head and
spurs arranged longitudinally and transversely on the under surface thereof, as
shewn in the drawings. The ribs or webs may however be formed separately and
secured to the cross-head and spurs by brazing, welding, or otherwise if desired, but
in practice I have found that it is better to cast the cross-head, spurs, and webs all
together, as they thus form a very strong and rigid anchor-head.
The concavity or curvature of the inner surface or front of the cross-head, as
shewn in the transverse section Figure 5, reaches from end to end of the spurs C
and extends longitudinally from arm to arm being partially interrupted by the
boss or eye D to which the shank E is attached. So that on each side of the boss
or eye D the inner surface of the cross-head forms a dish or scoop which will take
a good firm hold of the ground.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
:~
An anchor cross-head the inner surface or front of which is of a curved or
concave shape forming a dish or scoop on each side of the shank, the under side of
the said cross-head being strengthened by means of longitudinal and transverse ribs
or webs substantially as and for the purpose hereinbefore set forth and illustrated
in the accompanying drawings.
Dated thin 10th day of Woh 1901
CASTLE SMITH,
Per F. W. Golby,
"Invention" Office, 54, Fleet Street, London, E.C.,
Agent for the Applicant.