IMPROVEMENTS IN ANCHORS
Year: 1852

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
TROTMAN, of Dursley, Gloucestershire, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Royal Letters Patent under the Great Seal of the United Kingdom of Great
Britain and Ireland, bearing date at Westminster, the Twentieth day of April, in
the year of our Lord One thousand eight hundred and fifty-two, in the fifteenth
year of Her reign, did, for Herself, Her heirs and successors, give and grant
unto me, the said John Trotman, my exors, adñors, and assigns, Her especial
licence, full power, sole privilege and authority, that I, the said John Trotman,
our exors, adññors, and assigns, or such others as I, the said John Trotman, my
exors, adñors, or assigns, should at any time agree with, and no others,
from time to time and at all times during the term of term of years therein
expressed, should and lawfully might make, use, exercise, and vend, within
England, Wales, and the Town of Berwick-upon-Tweed, my Invention of
"IMPROVEMENTS IN ANCHORS;" in which said Letters Patent is contained a
proviso that I, the said John Trotman, shall cause a particular description
of the nature of my said Invention, and in what manner the same is to be
performed, by an instrument in writing under my hand and seal, to be inrolled
in Her Majesty's High Court of Chancery within six calendar months next
and immediately after the date of the said in part recited Letters Patent,
as in and by the same, reference being thereunto had, will more fully and
at large appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
John Trotman, do hereby declare that the nature of my said Invention,
and the manner in which the same is to be performed, are fully described and
ascertained in and by the following statement thereof, reference being had
to the Drawing hereunto annexed, and to the figures and letters marked
thereon, that is to say:-
The improvements are chiefly applicable to that class of anchors known as
"Porter's Anchors," and consist,―
First, of forming or fixing the palm intermediately of the breadth of the
arm.
Secondly, in forming the horn wider than the arm.
And,
Thirdly, in forming or affixing the palm of that class of anchor known as
Porter's Anchor at the back of the arm.
Figure 1 shows part of an anchor, made according to the original mode
pursued by Mr. Porter and others who have made such anchors. In this
case the horn a is only of the width of the arm at that part.
Figure 2 shows an anchor made according to the first and second parts of
my Invention.
a is the horn, which will be seen to be part of the palm, and
to be wider than the arm 6, and this is important in the construction of
Porter's as well as other anchors; and it will be further seen that the palms,
instead of being formed or welded in front of the arms, are formed or fixed
intermediate of the breadth of the arms in making Porter's or other anchors,
by which means the holding powers are improved, and the angle at which the
palms are formed or fixed may differ from that of the arms.
Figure 3 is a separate view of the shank and stock of the anchor.
Figure 4 shows another form of anchor, and wherein the palms are fixed at
the backs of the arms, and the horns form part of the palms. I would
remark that I am aware that it is not new to place the palm at the back of
the arm of ordinary anchors; this part of the Invention therefore consists of
combining the fixing of the palms to the back of those arms of anchors which
move on axes. The angles which the faces of the arms and the faces of the
palms make to the shank and to each other may be varied; but it is important
that the angles which the palms make to the shank and those made by the
arms should be different. The construction shewn are those I employ.
In witness whereof, I, the said John Trotman, have hereunto set my
hand and seal, this Nineteenth day of October, in the year of our
Lord One thousand eight hundred and fifty-two.
JOHN (L.S.) TROTMAN.

page_text: AND BE IT REMEMBERED, that on the Nineteenth day of October,
in the year of our Lord 1852, the aforesaid John Trotman came before our
said Lady the Queen in Her Chancery, and acknowledged the Specification
aforesaid, and all and everything therein contained and specified in form above
written. And also the Specification aforesaid was stamped according to the
tenor of the Statute made for that purpose.
Enrolled the Twentieth day of October, in the year of our Lord One
thousand eight hundred and fifty-two.