IMPROVEMENTS IN RIVETS
Year: 1871

page_text: LETTERS PATENT to Daniel Sharrocks, of Number Eleven, Ruthin
Street, Salford, in the County of Lancaster, Packer, for the Invention
of "IMPROVEMENTS IN RIVETS."
PROVISIONAL SPECIFICATION left by the said Daniel Sharrocks at
the Office of the Commissioners of Patents, with his Petition, on
the 2nd February 1871.
I, DANIEL SHARROCÈS, of Number Eleven, Ruthin Street, Salford,
in the County of Lancaster, Packer, do hereby declare the nature of
the said Invention for "IMPROVEMENTS IN RIVETS," to be as follows :-
This Invention consists in slitting, cross slitting, countersinking, or
forming any kind of cavity in the ends or points of rivets, the completion
of the rivetting process is thereby facilitated, the point of the rivet being
more easily hammered over owing to one or more of the above-described
preparations being made beforehand.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Daniel Sharrocks in the Great Seal Patent Office
on the 21st July 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, DANIEL
SHARROCKS, of Number Eleven, Ruthin Street, Salford, in the County
of Lancaster, Packer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Second day of February, in the year
of our Lord One thousand eight hundred and seventy-one, in the thirty-
fourth year
of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Daniel Sharrocks, Her special
licence that I, the said Daniel Sharrocks, my exccutors, administrators,
and assigns, or such others as I, the said Daniel Sharrocks, 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 "Iм-
PROVEMENTS IN RIVETS," upon the condition (amongst others) that I, the
said Daniel Sharrocks, 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 Daniel Sharrocks, do hereby declare
the nature of my said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the
following statement :-
This Invention consists in slitting, cross slitting, recessing, counter-
sinking, or forming any kind of cavity in the ends or points of rivets,
the completion of the rivetting process is thereby facilitated, the point
of the rivet being more easily hammered over owing to one or more of
the above-described preparations being made beforehand.
In one of the methods in which the same may be performed a
cylindrical piece of wrought iron cut off a bar to the length required. to

page_text: form the rivet is heated and then placed in the die used in forming the
rivet head in the usual well-known manner; but in this case the bottom
of the die is formed with a raised conical projecting surface which makes
a corresponding indentation or cavity in the point of the rivet by the
compressive force used in the formation of the head.
Having now described and particularly ascertained the nature of my
said Invention, and the manner in which the same is or may be used
or carried into effect, I would observe in conclusion that I do not
confine or restrict myself to the precise details or arrangements which
I have had occasion to describe or refer to, as many variations may be
made therefrom without deviating from the principles or main features
of my said Invention, but what I consider to be novel and original, and
therefore claim as my Invention is, the manufacture of rivets with
their ends or points slit, cross slit, recessed, countersunk, or formed
with any kind of cavity.
In witness whereof, I, the said Daniel Sharrocks, have hereunto
set my hand and seal, this Seventh day of July, in the year
of our Lord One thousand eight hundred and seventy-one.
) Witness,
DANIEL SHARROCKS. (L.S.)
W. E. ELLIS,
Patent Agent,
66, Murray Street,
Higher Broughton.
Manchester.