Improvements in Anchors.
Year: 1888

page_text: Date of Application, 19th Nov., 1888
Complete Specification Left, 5th July, 1889-Accepted, 24th Aug., 1889
PROVISIONAL SPECIFICATION.
Improvements in Anchors.
I, EDWARD SEEDHOUSE of 18 Afton Crescent, Paisley Road, Glasgow, Superin-
tendent of Lloyd's Anchor and Chain Cable Proving Establishment, do hereby
declare the nature of this Invention to be as follows:-
My invention relates to anchors of the type in which the flakes are fitted to
oscillate in planes parallel to the shank. As constructed under the invention the
improved anchor which may or may not be stockless, consists of a shank provided
with the usual shackle attachment at one end and having its head or crown end
formed with projecting arms provided with raised stops and with pivot pins one on
cach side on which the Aukes are centred so as to be free to oscillate
within the range of the stops and lie at an inclination to the longitudinal
axis of the shank. The flukes may be of any cross section and terminate at their
holding ends as usual in points adapted to readily take the ground whilst at their
opposite ends they extend beyond their axis or rocking centre and are connected
together by a tripping shaft and therefore move simultaneously. The head or crown
has formed on it two pairs of projecting horns or stops, one set at or near each end,
the said horns or projections being situated on each side of the rocking centre so as
to servo as stops to the movement of the flukes or arms when the latter are tilted to
the proper angle. The tripping shaft is fitted to freely clear the crown of the anchor
and any sand or other matters entering between the shaft and crown may readily drop
out so that there is nothing to prevent the free movement of the shaft and consequent
tilting of the flukes thus enabling the latter to readily take the ground. At or near
the mid length of the cross shaft a flat, curved, or wedge shaped block is formed on
it extending outwards on both sides this block being designed to strongthen the
shaft and serve as a "tripper" to tilt the flukes by catching the ground if the anchor
should fall with the flukes lying in a position unsuitable for engagement.
Auxiliary holding surfaces are or may be formed on the inner side of the crown
or head of the anchor by carrying inwards the whole or a portion of the thickness
of metal constituting the stops and terminating such parts in acute angles.
In lieu of forming the stops at or near the outer ends of the part constituting the
crown or head of the anchor they may be formed at or near the centre in which case
"trippers" may be formed on the shaft connecting the fluke ends and
placed on either side of the stops.
two or more
Dated this Seventeenth day of November 1888.
CRUIKSHANK & FAIRWEATHER,
62, Saint Vincent Street, Glasgow, Agents.
COMPLETE SPECIFICATION.
Improvements in Anchors.
I, EDWARD SEEDHOUSE of 18 Afton Crescent, Paisley Road, Glasgow, Superin-
tendent of Lloyd's Anchor and Chain Cable Proving Establishment 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 relates to anchors of the type in which the flukes are fitted to
oscillate in planes parallel to the shank.
-
As constructed under the invention and as illustrated in the accompanying
drawings in end and side elevations at figures 1 and 2 and in plan at figuro 3 the

page_text: The
improved anchor which may or may not be stockless, consists of a shank A provided
with the usual shackle attachment B at one end and having its head or crown end C
formed with projecting arms D, D, provided with raised stops E, E, and with pivot
pins F, I, one on each side on which the flukes G are centred so as to be free to
oscillate within the range of the stops E and lie at an inclination to the longitudinal
axis of the shank A. The flukes G may be of any cross section and terminate at
their holding ends g as usual in points adapted to readily take the ground whilst at
their opposite ends they extend beyond their axis or rocking centre F and are
connected together by a tripping shaft H and therefor move simultaneously.
head or crown has formed on it two pairs of projecting horns or stops E one set at
or near each end, the said horns or projections being situated on each side of the
rocking centre F so as to serve as stops to the movement of the flukes or arms
when the latter are tilted to the proper angle. The tripping shaft H is fitted to freely
clear the crown () of the anchor and any sand or other matters entering between the
shaft and crown may readily drop out so that there is nothing to prevent the free
movement of the shaft and consequent tilting of the flukes thus enabling the latter
to readily take the ground. At or near the mid length of the cross shaft H a flat
curved or wedge shaped block I is formed on it extending outwards on both sides
this block being designed to strengthen the shaft and serve as a tripper" to tilt the
flukes by catching the ground if the anchor should fall with the flukes lying in a
position unsuitable for engagement.
As shown at figures and 5 the parts constituting the stops E E may be made
separately and shrunk or keyed on a shaft 12 which is preferably of rectangular
section excepting at the ends carrying the flukes the said shaft being passed through
and fixed in an eye formed in the crown end of the shank A.
Auxiliary holding surfaces may be formed on the inner side of the crown or head
of the anchor by carrying inwards the whole or a portion of the thickness of metal
constituting the stops and terminating such parts in acute angles as indicated at e
figures 4 and 5.
In lieu of forming the stops E at or near the outer ends of the part constituting
the crown or hond of the anchor they may be formed at or near the centre as shown
in the modifications of the invention represented at figures 6, 7 and 8 and 9, 10
and 11 in which case two or moro "trippers" I are formed or secured on the shaft H
connecting the fluke ends, the said trippers being placed on either side of the
stops E or they may be formed in a piece as indicated at figures 9, 10 and 11.
When projections are formed on the flukes for tilting them tho tripper I may be
dispensed with in which case the tripper shaft may be reduced to the form of
short studs at the ends of the flukes to limit the extent of tilting movement by coming
in contact with the stops E.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
1. The combination of parts constituting the improved anchor hereinbefore
described with reference to the annexed drawings.
2. In an anchor of the class hereinbefore described the combination of the
oscillating flukes or arms, the tripper shaft and tripper substantially as set forth.
3. In an anchor of the class hereinbofore described the combination with the
oscillating flakes or arms of a tripper shaft and stops formed on the crown substantially
as set forth.
Dated this Fourth day Tul. 1000
CRUIKSHANK & FAIRWEATHER,
62, Saint Vincent Street, Glasgow, Agents.