Improvements in Stockless Anchors.
Year: 1892

page_text: Date of Application, 13th Dec., 1892
Complete Specification Left, 13th Sept., 1893-Accepted, 14th Oct.,. 1893
PROVISIONAL SPECIFICATION.
Improvements in Stockless Anchors.
We, HERBERT LE NEVE FOSTER, and GEORGE HATTON, of Round Oak Iron
and Steel Works, Brierley Hill, Staffordshire, Iron and Steel Manufacturers, do
hereby declare the nature of this invention to be as follows:-
:-
This invention has reference to those stockless anchors in which the head is
jointed to the bottom of the shank so as to trip to either side of the same and this
invention consists of the hereindescribed improvements in the tripping head and
arms or flukes which we make together in one casting of steel or other suitable
metal or alloy of peculiar form as herein described, whereby the metal is distributed
in the best possible manner to ensure a sound casting and to resist the different
strains to which the head and arms are subjected when the anchor is in use and so
as to ensure the head tripping freely.
We make the tripping head of tubular form of round oval or other suitable cross
section open at both ends and at the centre of the head there is a recess in which
the bottom end of the shank fits and where the shank is jointed to the head by a
joint pin which is inserted through one of the open ends of the said tubular part.
The joint pin is secured in place by a cross pin or cotter at one or both ends
passing through the head, or by other means. The arms or flukes we make of a
cross section somewhat resembling the letter H that is to say each arm consists of
a web and two ribs at each side of the web which are deepest where the arms join
the head and then gradually die away at the points of the arms.
The metal round the said central recess is continued at each side of the head far
enough to form the stops one or other of which comes in contact with the shank
when the head is atrip and regulates the angle through which it moves.
As the joint pin passes through somewhere about the centre of the tubular head
the head does not as in some other anchors partly counterbalance the arms and
therefore the head trips very freely.
Dated this 10th day of December 1892.
CHARLES BOSWORTH KETLEY,
Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Stockless Anchors.
We, HERBERT LE NEVE FOSTER, and GEORGE HATTON, both of Round Oak
Iron and Steel Works, Brierley Hill, Staffordshire, Iron and Steel Manufacturers,
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 stockless anchors in which the head is cast
in a piece with the arms or flukes and is jointed to the bottom of the shank so as to
trip to either side of the same and this invention consists in making the steel or
other casting forming the combined tripping head and arms of the peculiar form as
herein described, whereby the metal is distributed in the best possible manner to
ensure a sound casting and to resist the different strains to which the head and
arms are subjected when the anchor is in use and so as to ensure the head tripping.
freely.

page_text: We will describe our invention by referring to the accompanying drawing on
which
Fig. 1 is a front elevation of an anchor constructed according to this invention;
Fig. 2 is a side elevation of the same;
Fig. 3 is a sectional front elevation of the same;
Fig. 4 is a cross sectional side elevation on line X X of Fig. 3 and
Fig. 5 is a cross section through the head on line Y Y of Fig 3.
The same letters of reference indicate the same parts in all the figures of the
drawing.
We make the tripping head A of tubular form open at both ends, that is to say,
there is a hole a' cast right through the head from side to side concentric (or nearly
so) with the joint pin B and at the centre of the head there is cast a recess C in
which the bottom end of the shank D fits and where the shank is jointed to the
head A by the joint pin B which is inserted through one of the open ends of the
hole a'. The joint pin B is only made long enough to take a proper bearing in
the head at a a³ thus leaving the main portion of the hole a' open and causing the
head to trip more freely than if the hole a¹ were filled, as by the main portion of
the hole a being open the head A is lightened and the arms A' A' are made
heavier in proportion to the head without increasing the total weight of the head
and arms.
The joint pin B is secured in place by two cross pins e¹² at the ends of
the pin B which cross pins pass transversely through the head as shewn so as to
prevent the joint pin B moving end wise. The portion of the head A between the
cross pin e¹ and the arm A¹ and the corresponding portion between the cross pin e
and the arm A² are by preference made of the cross section shewn in Fig. 5 which
is almost circular but is thickened in front at a as shewn so as to add strength to
the head at these parts and to assist in making the head trip. The arms or
flukes A' A we make of a cross section somewhat resembling the letter H (see
Fig. 1) that is to say, each arm consists of a web as and two ribs a' as at each side
of the web which as shewn in Fig. 2 are deepest where the arms join the head and
then gradually die away at the points of the arms.
The metal round the central recess C is continued at each side of the head
at a ao far enough to form the stops one or other of which comes in contact with
the shank when the head is atrip, for instance as shewn by Fig. 2, and regulates the
angle through which the head moves.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that we do not
claim as our invention the making of the arms or flukes of H section nor the casting
of a joint pin hole through the head from side to side but what we claim is:-
1. In stockless anchors of the kind herein referred to making the combined head
and arms casting of the improved form substantially as herein before described and
illustrated by the accompanying drawing.
2. In stockless anchors of the kind herein referred to in which the head and arms
are cast together and the head is made of tubular cross section, securing the head
and the shank together by a joint pin arranged in the centre of the tubular head in
the manner substantially as herein set forth and shewn so as to leave both ends of
the tubular head open and thus reduce the weight of the same and enable the weight
of the arms to be increased as herein before set forth.
Dated this 12th day of September 1893.
CHARLES BOSWORTH KETLEY,
Agent for the Applicants.