Improvements in the Construction of Anchors.
Year: 1889

page_text: Date of Application, 25th Jan., 1889
Complete Specification Left, 25th Oct., 1889-Accepted, 23rd Nov., 1889
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Anchors.
We, JOHN FRANCIS HALL of Norbury, Pitsmoor, Sheffield, Manager of Steel
Works, and JOHN VERITY of Billing Bank, Bramley near Leeds, Engineer, both
in the County of York, do hereby declare the nature of this invention to be
as follows:-
"
Our invention consists in certain improvements in anchors whereby they
are rendered more efficient and certain in their action, and less liable to drag
or roll over than hitherto, and has reference to a pafent granted to us dated
11th day of March 1886 No. 3461.
According to our invention we make the arms or flukes and horns or trippers
in one piece, such horns or trippers being arranged in front of the centre of
the axis of the crosshead.
The crosshead is hollowed out for the reception of the trunnions of the shank,
such trunnions consisting of a spindle passed through an eye or opening in
the head, when such head is in a heated state, so that when cold it holds the
trunnions firmly by shrinkage.
The trunnions are held in position in the crosshead by transverse pins, al
the same time allowing a radial movement of the shank and arms or flukes.to
any required extent. We extend or prolong the trippers the full width of the.
flukes they thereby serving the purpose of a stock bar: The crown of the cross-
head is recessed to receive the trunnions of the shank.
By the above combined arrangement of crosshead and trippers, the anchor
on being dropped overboard will fall into position immediately on reaching tho
ground. Other parts of the anchor may be of the same description as those.
described in our aforesaid patent.
Dated thin th
T
1000
J. W. HARDING,
_ Agent for the Applicants.
•
COMPLETE SPECIFICATION.
Improvements in the Construction of Anchors.
D
We, JOHN FRANCIS HALL of Norbury Pitsmoor, Sheffield, Manager of Steel
Works, and JOHN VERITY of Billing Bank, Bramley near Leeds, Engineer, both
in the County of York, 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:–
-
Our invention consists in certain improvements in anchors whereby they are
rendered more efficient and certain in their action, and less liable to drag or
roll over than hitherto.
Fig. 1 is a front elevation. Fig. 2 an end elevation, and Fig. 3 a plan look-
ing on the top shewing anchor constructed in accordance with our invention.
According to our invention we make the curved arms or flukes A, horns or

page_text: trippers B and crosshead C in one piece, such horns or trippers B being arranged
in front of the centre of the axis of the crosshead C, instead of on the axis
or behind it, and by so doing more weight is thrown into the flukes A, causing
them more readily to point downwards and dig into the ground than when such
horns are central with the axis or behind it, therefore by our arrangement the
flukes are more certain in their action. The crosshead C is hollowed out at D
for the reception of the trunnions E of the shank F, such trunnions E may be
made in one piece with the shank F, or may consist of a spindle passed through
an eye or opening G in the head H when such head is in a heated state, so
that when cold it holds the trunnions E firmly by shrinkage.
The trunnions E are held in position in the crosshead C by the transverse
pins J, at the same time allowing a radial movement of the shank F and curved
arms or flukes A to any required extent, by this arrangement whatever oxadiza-
tion takes place, the trunnions E always work freely, and any accumulation of
foreign substances does not prevent the perfect and certain working of the.
flukes A. We project the herein before mentioned trippers B from the cross-
Lead C the full width of the curved arms or flukes A, these serving the purpose
of a stock bar, and by being projected the full width of the flukes A they are.
more effective in preventing the "heeling over" of the anchor, this being a
great feature, for, on the trippers greatly depends the behaviour and success
of the anchor.
By the above combined arrangements the anchor on being dropped over-
board will fall into position immediately on reaching the ground.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that
what we claim is:-
:―
1st. The combination of curved arms or flukes A with horns or trippers B
and crosshead C, substantially as and for purposes herein set forth.
2nd. The arrangement and application of trippers B provided in front of the
centre of the crosshead C, substantially as and for the purposes herein set forth.
3rd. The combination of trunnions E with shank F, fransverse pins J and
crosshead C, substantially as and for purposes herein set forth.
4th. The arrangement construction and application of horns or trippers, pro-'
jecting the full width of the curved arms or flukes A, substantially as and for.
purposes herein set forth.
5th. The combination with curved arms or flukes A, horns or trippers B,
crosshead C, trunnions. E, shank F, transverse pins J, all arranged substantially
as and for purposes herein set forth.