Year: 1887

page_text: Date of Application, 29th Aug., 1887
Complete Left, 29th May, 1888
Complete Accepted, 29th June, 1888.
I, WILLIAM PEARSON STRAWSON, of Stour Works, Cradley Heath, Staffordshire,
Chain and Anchor Manufacturer, do hereby declare the nature of this invention to be
as follows:-
This invention has reference to those anchors in which the arms are arranged to
move through an angle of about forty five degrees inore or less on each side of the
shank their motion being regulated by suitable stops. And this invention consists in
the peculiar construction and arrangement of the arms and lower part of the shank as
hereinafter described by means of which either arm can move independently of the
other, the arms are not liable to become choked by stones etc., the tripping action is
certain, either one or other of the arms can be readily replaced when broken or other-
wise damaged, and the anchor is rendered very cheap to manufacture.
In carrying out this invention I form a swell on the lower end of the shank and
through this swell passes a pin which is parallel with the stock (when a stock is used).
The said pin projects at either side of the shank and on these projecting ends the two
arms are severally jointed. The jointed end of each arm is formed as an eye through
which the said pin passes, the free ends of the arms being made of any ordinary
shape. The weight of the arms causes them to turn freely on the pin through a
certain angle on either side of the shank, say about forty five degrees, when their
farther motion is arrested by coming into contact with stops projecting from and
formed outside of the swelled part of the shank. The arms can either be loose on the
pin as above described so as to turn independently of each other, or they may bo
fixed to the pin so as to turn together, but I prefer for them to be loose on the pin as
above described as by their turning or tripping independently of each other the anchor
is rendered less liable to become inoperative through one of the arms being choked by
stones etc. By removing the pin either one or other of the arms can readily bo
removed and replaced.
The improvements above described are applicable to either cast or forged anchors.

page_text: Certain Improvements in Anchors.
I, WILLIAM PEARSON STRAWSON, of Stour Works, Stourbridge, Worcestershire,
Chain 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 :-
This invention has reference to those anchors in which the arms are arranged to
move through an angle of about forty five degrees inore or less on each side of the
shank their motion being regulated by suitable stops. And this invention consists in
the peculiar construction and arrangement of the arms and lower part of the shank
as hereinafter described by means of which either arm can move independently of the
other, the arms are not liable to become choked by stones etc., the tripping action is
certain, either one or other of the arms can be readily replaced when broken or other-
wise damaged and the anchor is rendered very cheap to manufacture.
In carrying out this invention I form a swell on the lower end of the shank and
through this swell passes a pin which is parallel with the stock (when a stock is used).
The said pin projects at either side of the shank and on these projecting ends the two
arms are severally jointed. The jointed end of each arm is formed as an eye through
which the said pin passes, the free ends of the arms being made of any ordinary shape.
The weight of the arms causes them to turn freely on the pin through a certain anglo
on either side of the shank, say about forty five degrees, when their farther motion
is arrested by coming into contact with stops projecting from and formed outside of
the swelled part of the shank. The arms can either be loose on the pin as above
described so as to turn independently of each other, or they may be fixed to the pin
so as to turn together, but I prefer for them to be loose on the pin as above described
as by their turning or tripping independently of each other the anchor is rendered
less liable to become inoperative through one of the arms being choked by stones, etc.
By removing the pin either ono or other of the arms can readily be removed and
replaced.
The improvements above described are applicable to either cast or forged anchors.
On the accompanying drawing Fig. 1 represents in side elevation, Fig. 2 in plan
and Fig. 3 in end elevation an anchor constructed according to this invention;
Fig. 4 is a cross section through the shank of the same and Fig. 5 represents one
of the arms of the same separately.
The same letters of reference indicate the same parts in all the Figures.
A is the shank of the anchor having the swell a' formed at its lower end and B
is the pin which passes through a hole in the swell and projects at either side
thereof and on or with which the arms C C turn. The arms Care formed as
an eye at one end for the pin B to pass through and the free ends c¹ of the arms
are of any usual shape. dd, d² ², are the stops which are formed with the swell
and project from the sides thereof and with which the arms come into contact when
they are a-trip so as to limit the motion of the arms on either side of the shank.

page_text: In the anchor represented by my drawing both arms are loose on the pin B and
either can turn independently of the other and by removing the pin B (which is
secured by the cottar b) either arm can be removed and replaced. Or the arms
may both be secured on the pin either by being keyed thereon or by other well
known means so as to turn together and with the pin.
The shank A and its swelled part a' are by preference made as a steel casting or
they can readily be forged.
The weight of the arms causes them to trip easily and when the anchor is dragged
on the ground the swell a¹ raises the jointed ends of the arms high enough to enable
the pointed end to immediately take hold and be embedded.
The anchor above described is by preference made without a stock but if required
a stock can be used for instance as shewn by the dotted lines in Figs. 1 and 2.
Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, I declare that what I
claim is:
1st. An anchor constructed substantially as hereinbefore described and illustrated
by the accompanying drawing.
2nd. The construction of the anchor shank A as having in combination the swell a¹
and the lateral projecting stops d' d¹, d² ², for the purposes set forth.
3011
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.