Year: 1886

page_text: Date of Application, 28th May, 1886.
Complete Left, 28th Feb., 1887.
Complete Accepted, 1st Apr., 1887.
I, GEORGE CHARLES LENNOX LENOX of Millwall in the County of Middlesex
Engineer do hereby declare the nature of this invention to be as follows:-
My invention applies to anchors in which the fluke piece is capable of angular
movement in the shank head through which it is inserted; and in which the Huke
piece is secured in the shank by a box piece in two parts which receiving the shank
head between them are then fixed together with bolts. Now I so make this box piece
that when the anchor is lying upon the ground and resting on the lower angle of the
box piece, this point of support shall be behind the centre of the joint connecting the
shank with the fluke piece. Then the weight of both the shank and fluke piece tend
to cause the points of the flukes to penetrate the ground. When the anchor is drawn
forward also the resistance which the ground opposes to the angle of the box piece
also tends to cause the points of the flukes to penetrate as heretofore in anchors of
this class.
To limit the angular movement of the fluke piece I insert a key into the fluke piece
and provide a corresponding recess in the shank head of dimensions to permit of the
range of movement desired or the key may be in the shank and the recess in the fluke
piece.
Sometimes in place of employing a box piece I fork the end of the shank and fit
the canting piece into this forked shank-I then form this canting piece as I have
described in respect to the box piece, so that its lower angle when the anchor is upon
the ground, is in rear of the centre of the joint connecting the shank and fluke
piece, and the weight of the shank tends to cause the points of the flukes to enter the
ground.
In anchors in which the fluke arms are continued to the rear of the shank head and
there have a canting piece fixed to them-I form the canting piece with palms of
considerably greater width than the shank head, and these palms, when the anchor is
drawn along the ground, tend to cause the points of the flukes to penetrate the
ground.
201
CARPMAEL & Co.,
Agents for the Applicant,

page_text: I GEORGE CHARLES LENNOX LENOX of Millwall in the County of Middlesex
Engineer 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:-
My Invention applies to anchors in which the flukes can partly turn relatively to
the shank and in which both flukes are intended to enter the ground when the anchor
is holding such flukes being fitted with a tipping or canting piece either separate from
or forming part of the flukes.
In all such anchors hitherto made the point where the tipping piece rests on the
ground when the flukes are turned upwards to their extreme limit above the shank
(and this is the position they often assume when the anchor reaches the ground) has
always been considerably nearer to the cable or forward end of the shank than is the
axis about which the flukes turn. The result of this is that the weight of the shank
tends to keep the flukes pointing upwards and prevent them from entering the ground
and therefore unless the tipping piece takes good hold of the ground which in some
soils it does not the flukes are not turned down and do not enter at all and thus the
anchor drags.
According to my invention I so form and place the tipping piece that the weight of
the shank has little or no tendency to keep the flukes pointing upwards that is to say
I make the tipping piece touch the ground at a point little if anything in advance of
the axis about which the flukes turn and certainly not further forward than the front
of the bar or axle connecting them.
I find however that it is generally desirable to have the point slightly in advance of
the axis as otherwise directly the flukes began to turn downwards the tipping piece
would begin to lift out of the ground and lose its hold thereby failing to turn the
flukes downward sufficiently to make them enter the ground. The leverage of the
weight of the shank acting at a distance (from the axis) equal to the semi-diameter of
the bar or axle connecting the flukes is so small that it can in most cases be neglected
but I find that the above limit must not be exceeded.
Figure 1 shows a plan and,
Figure 2 a side view of an anchor constructed in accordance with my invention.
In the former figure the shank and flukes are in the same plane and in the latter
figure the anchor rests upon the ground with the flukes in the highest position they
can assume.
Figures 3 and 4 are views of the box piece.
In all these and the other figures of the drawings a a are the flukes and b is the
shank c c are the box pieces with extensions c¹ c¹ which form canting pieces.
As is shown at figure 2 when the flukes a are in their highest position the lower

page_text: end of the tipping or canting piece c¹ is to the rear of the front of the bar or axle d
which connects the flukes.
To limit the angular movement of the flukes I insert a key into the bar or axle
connecting them and provide a corresponding recess in the shank head of dimensions
to permit of the range of movement desired or the key may be in the shank and the
recess in the bar or axle connecting the flukes.
Figure 5 is a Section of an Anchor illustrating this part of my Invention.
dis the key fixed into the bar or axle connecting the flukes.
Sometimes in place of employing a box piece I fork the end of the shank and fit
the canting piece into this forked shank I then form this canting piece as I have
described in respect to the box piece so that its lower angle when the anchor
upon
the ground is in rear of the joint connecting the shank and fluke piece and the weight
of the shank tends to cause the points of the flukes to enter the ground.
Figures 6 and 7 illustrate this part of my invention.
In anchors in which the fluke arms are continued to the rear of the shank head and
there have a canting piece fixed to them I form the canting piece with palms of con-
siderably greater width than the shank head and these palms when the anchor is
drawn along the ground tend to cause the points of the flukes to penetrate the
ground.
Figures 8. 9. 10 and 11 illustrate this part of my invention g g being the palms on
the canting piece.
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 claim is
1. An anchor in which the tipping or canting piece is such that when the anchor is
on the ground with the flukes in the highest position the point where the tipping or
canting piece rests on the ground shall not be in advance of the front of the bar or
axle connecting the flukes."
2. An anchor in which the angular movement of the flukes is limited by a key
inserted into the bar or axle connecting the flukes or into the shank as described in
reference to figure 5.
3. An anchor constructed substantially as described in connection with figures 6
and 7.
4. An anchor with a canting piece fixed to it provided with palms of considerably
greater width than the shank, substantially as described in connection with figures, 8,
9, 10, and 11..
Dated th: 00 T
1007
CARPMAEL & Co.,
Agents for the Applicant.