AN IMPROVEMENT IN ANCHORS
Year: 1853

page_text: LETTERS PATENT to Michael Dwyer, of Unity Place, Sammel
Street, Woolwich, in the County of Kent, a Commander in the
Royal Navy, and James Brown, of No. 2, Bridge Terrace, Mile
End, in the County of Middlesex. Machinist, for the Invention
of "AN IMPROVEMENT IN ANCHORS."
Sealed the 8th March 1854, and dated the 3rd October 1853.
PROVISIONAL
CATION left by the said Michael
yer
and James Brown at the Office of the Commissioners of Patents,
with their Petition, on the 3rd October 1853.
We, MICHAEL DWYER and JAMES BROWN, do hereby declare the
nature of the said Invention for AN IMPROVEMENT IN ANCHORS" to be
as follows:-
In the first place, our Invention is only applicable to anchors the
arms of which work on an axis, and consists, so far as relates to the
arms of the anchor, in a peculiar formation, having a semi-circular pro-
jection on the inner part of the arm, which said projection carries an
clongated hole, the upper part of which said elongated hole pressing
down against the inner bolt of the shank forces the under arms into.the
earth, thereby giving the anchor better holding properties, and at the
same time greater strength, as shown in Drawing, Figure 1.. My In

page_text: vention also consists of a peculiar formation of shank having a circular
form of jaws, and containing two bolt holes, the inner bolt hole of an
oval shape so as to receive an oval bolt. The circular form of the jaws
is intended to give additional strength to that part of the shank which
has to sustain the most strain.
In the second place, my Invention consists of the arms of the anchor
made of the same form as the arm first above described, but with the
addition of a slot as shown in Drawing, Figure 8, which slot goes
through the arm of the anchor from the crown to the inner part, so as
to receive a middle jaw of the shank, and the shank itself is made with
three prongs or jaws as shown in Drawing, Figure 7.
REFERENCES TO THE DRAWINGS.
Figure 1, shows a representation of the anchor first above mentioned,
and is represented as holding in the ground. A, is the elongated hole,
the upper part of which pressing down upon the oval bolt B, forces the
arm C, into the ground. B, is the oval bolt or inner bolt; C, C, are
the arms; D, is the shank; E, is the bolt or axis on which the arms
work. Figure 2, is a representation of the form of the arms. A, is
the elongated hole; E, is the bolt hole; G, is the semi-circular projec-
tion. Figure 3, is a representation of the shank. D, is the shank;
F, F, are the jaws. Figure 4, is the stock. Figure 5, is part of the
arms viewed edgeways with the palm attached. Figure 6, is a repre-
sentation of the anchor secondly above mentioned, the description of
the parts of the Drawing corresponding with description of Drawing,
Figure 1. Figure 7, is the shank, showing the three jaws F, F, F.
Figure 8, is part of the arms C, viewed edgeways, showing part of the
slot H, in which the centre jaw of shank works.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Michael Dwyer and James Brown in the Great
Seal Patent Office on the 1st April 1854.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
.MICHAEL DWYER, of Unity Place, Samuel Street, Woolwich, in the
County of. Kent, a Commander in the Royal Navy, and JAMES. BROWN,

page_text: of No. 2, Bridge Terrace, Mile End, in the County of Middlesex,
Machinist, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent; bearing date the Third day of October, in the year of
our Lord One thousand eight hundred and fifty-three, in the seven-
teenth year of Her reign, did,, for Herself, Her heirs and successors,
give and grant unto us, the said Michael Dwyer and James Brown,
Her special licence that we, the said Michael Dwyer and James
Brown, our executors, administrators, and assigns, or such others as we,
the said Michael Dwyer and James Brown, our executors, adminis-
trators, and assigns, should at any time agree with, and no others,
from time to time and at all times, thereafter during the term therein
expressed, should and lawfully might make, use, exercise, and vend,
within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "AN IMPROVEMENT IN
ANCHORS," upon the condition (amongst others) that we, the said
Michael Dwyer and James Brown, by an instrument in writing under
our hands and seals, should particularly describe and ascertain the
nature of the said Invention, and in what manner the same was to be
performed, and cause the same to be filed in the Great Seal Patent
Office within six calendar months next and immediately after the date
of the said Letters Patent.
NOW KNOW YE, that we, the said Michael Dwyer and James
Brown, do hereby declare the nature of our said Invention, and in what
manner the saine is to be performed, to be particularly described and
ascertained in and by the following statement (that is to say):
In the first place, our Invention is only applicable to anchors the
arms of which work on an axis, and consists, so far as relates to the
arms of the anchor, in a péculiar formation, having a semi-circular pro-
jection on the inner part of the arm, which said projection contains an
elongated hole, the upper part of which said elongated hole pressing
down against the inner bolt of the shank forces the under part of the
arm into the earth, thereby giving the anchor better holding properties,
as shewn in Drawing, Figure 1. Our Invention also consists of a
peculiar formation of shank having jaws with bolt holes, so as to
receive two bolts as shown in Drawing, Figure 2:

page_text: In the second place, our Invention consists of the arms of the anchor
made of the same form as the arms first above described, but having a
recess in the crown as shown in Drawing, Figure 8, which recess goes
through the arm of the anchor from the crown to the inner part, so as
to receive a middle jaw of the shank, and the shank itself is made
with three prongs or jaws, as shewn in Drawing, Figure 7.
In witness whereof, we, the said Michael Dwyer and James
Brown, have heretofore set our hands and seals, this First day
of April, in the year of our Lord One thousand eight hundred
and fifty-four.
See reference to Drawings on the other side.
REFERENCES TO THE DRAWINGS.
Figure 1, shows a representation of the anchor first above mentioned,
and is represented as holding in the ground. A, is the elongated hole,
the upper part of which pressing down upon the bolt B, forces the arnı
C, into the ground; B, is the inner bolt; C, C, are the arms; D, is
the shank; E, is the bolt or axis on which the arms work. Figure 2,
is a representation of the shank; D, is the shank; F, F, are the jaws;
E, is the bolt or axis on which the arms work; B, is the inner bolt.
Figure 3, is a representation of the form of arms; A, is the elongated
hole; E, is the bolt or axis hole; G; is the semi-circular projection.
Figure 4, is the stock. Figure 5, is part of the arms viewed edgeways,
with the palm attached. Figure 6, is a representation of the anchor
secondly above mentioned, the description of the parts of the Drawing
corresponding with description of Drawing, Figure 1. Figure 7, is the
shank, showing the three jaws F, F, F; E, is the bolt or axis on which
the arms work; B, is the inner bolt. Figure 8, is part of the armis C,
viewed edgeways, showing part of the
jaw of shank works.
recess H, in which the centre