Improvements in and relating to Anchors.
Year: 1897

page_text: Date of Application, 11th Mar., 1897
Complete Specification Left, 13th Dec., 1897-Accepted, 11th Mar., 1898
Improvements in and relating to Anchors.
I, HENRY EDWARD BOWRING, of Mole Bank, East Molesey, in the County of
Surrey, Gentleman, do hereby declare the nature of this invention to be as
follows:-
My invention relates to anchors and has for its object to enable the arms of the
anchor to be turned backward against the shank so as to occupy little space when
not in use.
In carrying my invention into practice I provide the shank of the anchor, which
is made approximately square in transverse section and tapering towards its rear end,
with a cap forming the crown piece and designed to serve as an abutment for the
arms. This cap may either be made in one piece with the shank or fastened to the
saine by suitable means. The two arms of the anchor are hinged to each other at
their sides, and their adjoining ends are furnished with recesses forming a square
aperture for enabling them to be slid upon the shank and to bear against the afore-
said cap or crown piece when the arms are extended and ready for use. In this
position they are held by a pair of wedges forced from the rear into corresponding
recesses formed in the terminal faces of the arms opposite two sides of the shank.
The two wedges, which are united by a face plate surrounding the shank and fit
into a recess formed in the rear portion of the two arms, are secured in their position
through the intervention of a cottar driven through a hole in the shank. At its
rear end the latter is furnished with a stock or rod at right angles to the arms of
the anchor for enabling one or the other fluke to hook into the ground, and with
a ring or shackle for attaching the rope or chain.
I make these flukes only slightly wider than the arms, so that the ground will
be torn as little as possible and the hold which it affords to the anchor will be
retained.
When the arms are extended and secured in this position they surround the
shank, and bear against the same and also against each other by their breasts or
terminal faces, whilst their front portion bears against the aforesaid cap or crown
piece thereby ensure great rigidity.
By removing the cottar and shifting the wedges backwards on the shank the
arms may be folded or turned against the sides of the shank.
Dated this 11th day of March 1897
PHILLIPS & LEIGH,
Agents for the Applicant.

page_text: I, HENRY EDWARD BOWRING, of Mole Bank, East Molesey, in the County of
Surrey, Gentleman, 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 present invention relates to improvements in ships' anchors, and its object is
to enable such anchors to be folded up into a compact form so as to occupy a com-
paratively small space when not in use. I find this object is best attained by so
constructing the anchor that its arms may be closed up against the shank; and
the shank itself may be hinged so as to fold down upon itself.
In carrying my invention into practice, in order that the arms may be closed
up against the shank, the latter instead of being in one piece, as heretofore, is
divided and hinged together in or near to the middle, and has a solid head on the
crown end which may be vither in one piece with the shank or rigidly fixed thereto
by any suitable means. The two arms are separate from the shank and instead
(.. thing in a piece, asual, are also divided and pivotally hinged together
imming
centially or averly, and their adjoining ends are turnished with teres
a square hole tapering towards the crown of the anchor. The shank is s'istentially
of square transverse section throughout, and before joining the two parts of it
together when a divided one, it is passed through the square tapering hole with a
recessed top formed by the arm, as above described, close up to the head or crown
piece against which and the square on the shank they lear when extended. A
wedge piece with a square hole in the centre which niay be in two halves inter-
locking with each other if desired, corresponding externally in shape with the
tapering hole formed by the arms, is then placed over the shank and fitted down into
the said tapering space around the shank between it and the throat of the anchor.
This wedge holds the arms extended, and is itself held in position by a cottar-pin
driven into a hole in the shank of the anchor just above the said wedge. Thus, to
close up the arms it is only necessary to remove this cottar, take out the wedge, and
rotate the arms on their pivot or hinge towards the shank until their bills touch it.
The stock is made preferably circular, instead of square, in cross section, one end
being bent round to about a right angle, and each end terminates in a knob, one of
which is removable, and the other fixed; it has also a fixed collar at or near the centre.
The stock is passed through a hole made in the shank near to the "small round"
end thereof and is secured in position by a feather or spline and a set-screw-the
latter passing through the shank into the fixed flange or collar, just mentioned, on
the stock.
To fold the shank down on itself it is only necessary to remove the set-screw by
which the two portions are held rigid, when the parts can then be turned on the
pivot or hinge by which they are united. I sometimes leave the shank whole as
shown in Figure 4 of the accompanying drawings, when it is not necessary that it
should fold up.
In the accompanying drawings Figure 1 is an elevation of my anchor, and
showing the two positions of the arms. Figure 2 is a sectional end elevation of
Figure 1. Figure 3 is a sectional elevation of my anchor, the root of the arms and
the wedge being in section. Figure 4 is a view of a jointless shank detached, and
shewing the recess in the stock-hole. Figure 5 is a plan of the divided wedge.
Figure 6 is a perspective view of one half of the divided wedge detached. Figure 7
is an elevation of the wedge when in one piece.
c is
Referring to the drawings:-a, a are the two arms pivoted together at b.
the square tapering hole formed by the recesses in their roots, and d is the wedge

page_text: which when in position holds the arms extended and is itself secured in position
by the cottar-pin e. f is the shank which may be divided and joined together by
a hinge g held rigid by a bolt h or it may be in one piece as before stated. i is the
stock having one endj bent round, and k, k are the two knobs on its extremities;
and m are the feather or spline aud the collar respectively which prevent any
longitudinal play in its socket n when the set-screw is screwed into the said
collar m. is the recess in the eye or socket n.
The wedge may be all in one piece as shewn at Figure 7, or formed in inter-
locking or overlapping halves as illustrated at Figures 5 and 6.
My anchor is also somewhat modified from those hitherto in use in respect to its
flukes, which are made narrower than usual in order that they may obtain a firm
hold in the ground without tearing or dviding it up so much as the broad flukes do.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, I declare that what I
claim is :-
1. A ship's anchor the arms of which are divided and recessed at the roots and
pivotally jointed around the crown end of the shank of the anchor and held extended
by a removeable wedge, substantially in the manner and for the purposes herein
described and illustrated.
2. A ship's anchor the shank of which is divided and pivotally jointed or hinged
together, with means for making the said joint rigid when required, substantially as
and for the purposes herein described and illustrated.
3. A ship's anchor the stock of which is bent round at one end and held in
position in the eye of the shank by means of a fixed collar and feather-key on the
said stock and a set-screw or stud passing through the shank into the said collar,
substantially as and for the purposes herein described and illustrated.
4. A ship's anchor having arms adapted to close up against the shank by being
recessed and pivotally jointed to the shank, and held when extended by means of a
removeable wedge secured in the said recesses; a shank adapted to fold down on
itself made in two parts hinged together and held rigid when so required by a bolt,
substantially as and for the purposes herein described and set forth.
5. A ship's anchor constructed and operating substantially as and for the
purposes herein described and set forth.
TL 101
100%
PHILLIPS & LEIGH,
No. 22, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicant.