Improvements in Anchors.
Year: 1893

page_text: Date of Application, 25th July, 1893
Complete Specification Left, 25th Apr., 1894-Accepted, 9th June, 1894
PROVISIONAL SPECIFICATION.
Improvements in Anchors.
I HENRY HUTCHINSON residing at 59 Campbell Street Newcastle on Tyne
Engineer do hereby declare the nature of this invention to be as follows:-
This invention refers to stockless anchors in which the tripping head and arms
are made in one piece, and the shank fits into a hole in the head, and is there
secured by a pivot pin placed well within the head, so that the preponderance of
weight is in front of the axis of the pivot pin, which allows it to trip easily.
My invention consists of the herein described improved construction of the
head, method of carrying the pivot pin, and method of stopping the head at its
maximum angle, whereby I am enabled to place the pivot pin in position and
secure all parts together with less labour and cost than heretofore in anchors of
this class.
In carrying out this invention, the head which may be of cast or forged metal or
alloy has a hole through the centre, in this hole I insert a box, of cast or forged
metal or alloy, as a stop for the shank also as a carrier for the pivot pin and end of
shank, this box I make with projecting lips or flanges, these flanges being for the
purpose of stopping the box at its required position in the head, and at the back
end make provision for a key or keys to keep it in place, at the front end I
chamfer two of its inner edges so as to form a flat surface for the shank to stop
against when the head has reached its required or maximum angle, this box has
also holes through two of its sides to take the pivot pin.
To connect the head to the shank, place the box on the end of shank, put in
pivot pin, then insert box into the hole in head, and drive key or keys through
outer end of box.
Dated this 24th day of July 1893
CUM LEIE DI ECIFICATION.
Improvements in Anchors.
1 HENRY HUTCHINSON 59 Campbell Street Newcastle on Tyne 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 :-
This invention refers to stockless anchors in which the tripping head and arms
are made in one piece and the shank fits into a hole in the head and is there
secured by a pivot pin placed well within the head so that the preponderance
of weight is in front of the axis of the pivot pin, which allows it to trip easily.
My invention consists of the herein described construction of the head, method
of carrying the pivot pin, and the method of stopping the head at its maximum
angle, whereby I am enabled to place the pivot pin in position and secure all
parts together with less labour and cost than hitherto in anchors of this class.
In carrying out this invention, the head, which may be of cast or forged metal
or alloy, has a hole through the centre, in this hole 1 insert a box of cast or forged
metal or alloy, as a stop for the shank, also as a carrier for the pivot pin and end
of shank, this box I make with projecting lips or flanges on the front end, these
flanges being for the purpose of stopping the box at its required position in the

page_text: head, and at the back end I make provision for a key or keys to keep it in place,
this method of fixing parts with keys into anchor heads of this class is old, I may
therefore substitute one or more bolts or rivets put in from the inside of the box
and pass them through a washer plate placed on the back of the head, and secure
with nuts or cotters or by rivetting the ends over, or I may place the lips or
flanges on the outer end of the box and secure it with plain or screwed pins put
through the head and the box at convenient places, or I may taper the box on one
or more sides, either the full thickness of the tripping head or a part of its thickness,
the hole in tripping head being made to correspond, in the case of making the box
tapered I dispense with all flanges or lips on the box, the box being inserted into
At the front end
the head from the back and fixed with pins as before mentioned.
of the box I chamfer two of its inner edges as stops, for the shank to rest against
when the head has reached its required or maximum angle, this box has also holes
through two of its sides to take the pivot pin.
In order that my invention may be more fully understood and carried into
practice I will now proceed to describe the same with reference to the accom-
panying drawings in which similar letters are used to indicate corresponding parts
throughout.
On Sheet 1, Figs. 1, 2 & 3 shews three views of a complete anchor with the
"box" formed as a stop, Fig. 1 being a plan view, Fig. 2 a side elevation, and
Fig. 3 a rear end view.
Referring to Sheet 1, Figs. 1, 2 & 3, a is the shank, b is the tripping head
and arms.combined, is the "box," d are the chamfers in the "box" forming the
stops and giving ample bearing surface for the shank to rest against when the head
has reached its required or maximum angle, e is the key for keeping the "box"
position.
in
On Sheet 2, Figs. 4, 5 & 6 shews three views of an alternative method which
I may adopt for keeping the "box" in position, Fig. 4 is a plan view, Fig. 5
is a side elevation and Fig. 6 is a rear end view, f are the bolts or rivets passing
through the holes g in the "box" c, and through the washer plate h.
On Sheet 3, Figs. 7, 8 & 9 are three views shewing the "box" tapered, with a
corresponding tapered hole in the head, and the method of fixing the "box" into
the head with pins.
"
"
Fig. 7 is a plan view, Fig. 8 is a side elevation and Fig. 9 is a rear end view.
in
kare the pins engaging the "box" c and the head b to keep the "box
position, the lines shew the "box tapered on two of its sides, which also indicate
the hole in the head, and are for the purpose of determining the position of the
"box" in the head and also to take the strain when the anchor is at work.
The dotted lines; on Sheets 1, 2 & 3, Figs. 2, 5 & 8 shews the shank resting on
the chamfers d, these chamfers being the stops.
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
to make the connection
1st. Improvements in anchors consisting of a "box"
between the head and the shank, and having stops therein for the shank to rest
against when the head has reached its maximum angle, this "box" being made
either with sides parallel to each other or one or more sides tapered.
2nd. The tapered hole in the head suitable for a tapered "box."
3rd. The methods of fixing the "box" into the head as shewn on Sheets 2 & 3.
D
1 1h: 09-1 dan of Annil 1001
HENRY HUTCHINSON.