Year: 1888

page_text: I, EDWARD JOHN COLSTON FEAR of Saint Augustine's Chambers Unity Street,
College Green, Bristol Patent Agent 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 :-
The object of my invention is to manufacture an improved form of Anchor for
Ships.
In carrying out my invention I construct the lower half (or thereabouts) of the
shank with a slot. In this slot I fit a single arm with one fluke, or its equivalent.
The arm and fluke are in one piece, and fluted on each side, the outer end,
corresponding to the pea of the fluke, is made sharp, so that it may enter the ground
and "bite" easily.
The head of the arm is pivotted in the slot of the shank, near the crown of the
anchor, so that it may be capable of swinging on either side of the shank, to an
angle of 45 degrees or thereabouts, when resting on the ground, dragging, or holding.
The pivotted end of the arm is formed with projections, which limit the swing or
motion of the arm to the required angle on either side of the shank. The small end
of the shank is fitted with the usual ring or shackle and stock; and the crown end is
fitted with links, for securing the anchor when raised.
When the Anchor is catted with the crown upwards, the arm falls into a central
position in the slot of the shank.
And in order that my said invention may be particularly described and ascertained,
reference is hereby made to the accompanying drawings, in which similar letters of
reference indicate corresponding parts.
Fig. 1 is a side elevation, shewing the arm and fluke 6 in a central position in the
slot a of the shank.
Fig. 2 is a side elevation, shewing the arm and fluke 6 projected on one side,
to its fullest extent.

page_text: Fig. 3 is an elevation at right angles to Figs. 1 and 2 shewing the arm and fluke
in the same position as in Fig. 1.
Fig. 4 is a section on the line 1-2.
(Fig. 2) a is the solid part of the shank, formed with a slot of sufficient width to
admit the arm and fluke. 6 as shewn. is the arm and fluke, the head of which is
pivotted to the shank at c.
are two projections formed in one with the arm b.
These projections assist in canting the fluke when dragging on the ground; they
also act as stops to limit the angle of motion outwards, one portion being in contact
with the lower end of the shank a², bevelled for that purpose; and another portion
being stopped by the short studs d d as shewn in Fig. 2.
ee are links for use in catting the anchor, crown-end upwards. The arm and fluke b
is fluted on each side, as shewn in fig. 4. is the shackle, and g is the stock.
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
1. The manufacture and use of anchors for ships, consisting of a single arm and
fluke b, working upon a bolt or pin c, fitted to a slotted shank a a¹ a and having
stops at a² and d, engaging projections upon the head of the arm 61 61, substantially
as herein before described and shewn on the drawings.
2. The general construction, arrangement, and combination of the several and
respective parts, together forming my invention of an improved ship's anchor,
substantially as herein before described and shewn on the drawings.
Dated this 23rd day of March 1888.