IMPROVEMENTS IN THE FORM OF ANDER DUR DOGS
Year: 1862

page_text: LETTERS PATENT to Montague Wigzell, of the Strand, Topsham, in the
County of Devon, for the Invention of "IMPROVEMENTS IN THE FORM OF
ANDER DUR DOGS
"
PROVISIONAL SPECIFICATION left by the said Montague Wigzell at
the Office of the Commissioners of Patents, with his Petition, on the
19th June 1862.
I, MONTAGUE WIGZELL, of the Strand, Topsham, in the County of Devon,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN THE
FORM OF BOLTS AND OTHER FASTENINGS FOR SHIP-BUILDING AND OTHER PURPOSES,"
to be as follows:-
This my Invention relates to the form of bolts and other fastenings to be used
in ship-building and other purposes to which it may be applicable. It consists
of a circular formed bolt, nail, spike, or pin, having one or more worms, ribs,
or projections, of such a form and so placed in a spiral direction around its
surface as to cause the bolt, nail, spike, or pin to revolve whilst being driven
into timber after a hole has been made in the timber the size of, its solid
circular centre, and to hold into the timber with greater tenacity than the
plain circular bolts now in use.
My improved bolts, nails, spikes, or pins, may be cast or otherwise made by
any suitable machinery, in iron or other metal or metallic alloy, and they can

page_text: be driven home into timber by a direct blow from a hammer after a hole the
size of its circular centre has been made; but what I claim as my Invention,
and more particularly wish to secure by Letters "Patent," is the application
of a worm, rib, or projection, around a circular butt or other bolt, nail, spike,
or pin, for ship-building and other purposes to which it may be applicable.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Montague Wigzell in the Great Seál Patent Office on the
18th December 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, MONTAGUE
WIGZELL, of the Strand, Topsham, in the County of Devon, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Nineteenth day of June, in the year of our Lord
One thousand eight hundred and sixty-two, in the twenty-fifth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Montague Wigzell, Her special licence, that I, the said Montague Wigzell,
my executors, administrators, and assigns, or such others as I, the said Mon-
tague Wigzell, or my executors, administrators, 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 "IMPROVEMENTS IN THE
FORM OF BOLTS AND OTHER FASTENINGS FOR SHIP-BUILDING AND OTHER PURPOSES,"
upon the condition (amongst others) that I, the said Montague Wigzell, my
executors or administrators, by an instrument in writing under my, or their,
or one of their 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 I, the said Montague, Wigzell, do hereby declare
the nature of the said Invention, and in what manner the same is to bo per-
formed, to be particularly described and ascertained in and by the following
statement:-
This my Invention relates to the form of bolts and other fastenings to be
used in ship-building and other purposes to which it may be applicable. It
consists of a circular formed bolt, nail, spike, or pin, having one or more

page_text: worms, ribs, or projections, of such a form and so placed, in a spiral direction
around its surface, as to cause the bolt, nail, spike, or pin, to revolve whilst
being driven into timber after a hole has been made the size of its solid or.
hollow circular centre, and driven home by a direct blow from a hammer,
and will hold into the timber or other substance into which it may be driven
with greater tenacity than the plain circular bolts now in use.
My improved butt and other bolts, spikes, nails, or pins, may be cast by hand
or by the usual process, or otherwise made by any suitable machinery, in iron,
brass, copper, or other metal or metallic alloy, and with or without heads or
points, as shown in the accompanying Sheet of Drawings, as Fig. g, h, i, j, k, l,
of which Fig. 1, 2, 3, 4, 5, & 6, are sections through lines a, a, b, b, c, c, d, d,
e, e, & f,f, but I do not limit myself to the precise details shown in the Draw-
ings, as the angle, size, or shape of the spiral projections, worms, or ribs in cross
section, may vary without deviating from the principle of my improvements,
but what I claim as my Invention, and more particularly wish to secure by
"Letters Patent, is the application of a worm, rib, or projection, in a spiral.
direction around a circular formed butt or other bolt, nail, spike, or pin, for
ship-building and other purposes to which it may be applicable.
In witness whereof, I, the said Montague Wigzell, have herein set my
hand and seal, this Seventeenth day of December, in the year of our
Lord 1862.
MONTAGUE WIGZELL. (L.S.)
Witnessed, Topsham, December 17th 1862.
FRANK B. SIMONS,
Clerk, Patent Nail Works.
Strand, Topsham.