IMPROVEMENTS IN CONSTRUCTING IRON SHIPS OR VESSELS, AND STEAM BOILERS
Year: 1852

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
JOHN MARE, of Blackwall, in the County of Middlesex, 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 Twenty-seventh,
day of February, 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 Charles John Mare, my exors, admors, and assigns, Her
especial licence, full power, sole privilege and authority, that I, the said
Charles John Mare, my exors, admors, and assigns, or such others as I, the
said Charles John Mare, my exors, admors, or assigns, should at any time
agree with, and no others, from time to time and at all times during the 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 CONSTRUCTING IRON SHIPS OR VESSELS, AND
STEAM BOILERS;" in which said Letters Patent is contained a proviso that I,
the said Charles John Mare, 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 said
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
Charles John Mare, 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:-
My Invention relates to arranging and combining apparatus to be used as
templates to ascertain the correct form of the various metal plates used in the
manufacture of iron ships or vessels, and boilers, and also the correct position
required for the rivet, or other bolt holes required in putting such plates
together.
Heretofore, in constructing iron and other vessels and boilers, it has been
usual, in order to get the correct form of the plates used in such manufactures,
and the position of the various bolt holes, to hoist the plates into position, and
hold them there temporarily, by clamping or otherwise, whilst the correct form
for jointing or otherwise have been marked on the plates to be cut; as also the
positions for the rivet or other bolt holes, so that such holes when made, may
correctly correspond with those in the plate or plates already applied, or with
the holes in the ribs or other plates used as connecting or tie plates, an opera-
tion which is found to be attended with considerable loss of time and at
considerable cost of labour.
In order that these my improvements may be fully understood, and readily
carried into effect, I will proceed to describe the Drawing hereunto annexed.
DESCRIPTION OF THE DRAWING.
a and b are longitudinal bars which are connected together by transverse
bars c, d. The bars c, d, have screws e, e, which pass through the longitudinal
opening formed in the bar a; and there are washers e¹ through which the
screws e pass, and by which the screws e may tightly hold the parts a, c, d,
together, and there are like screws and washers at f, f, which pass through like
openings in the bar b. The screws f pass also through slot openings in the
bars c, d, and they are formed with nuts, by which the bar 6 may be secured
to the bars c, d, at various points in the lengths of those bars, as well as at
different points in its own length, in order to obtain the required form. And
in describing the application of my Invention I will suppose a row of plates to
have been applied in the ordinary manner, and it is required to obtain the
correct form of each of the next plates, and also the position of the holes therein
in relation to those in the first row. a' is a projecting rib upon the bar a,

page_text: which I rest upon the edge of the last row of plates, or it might rest upon any
other surface or bar which should guage for the parallelism or otherwise of the
next row; and supposing there to be a plate already fixed in such row, I then,
by slackening the screws e, f, place one of the bars c or d with its edge against
such plate, and the other bar c or d, and also the bar b, I fix in their correct.
relation, so that the outer edges of the bars b, c, d, may represent the three
outer edges of the plate for that position, when cut to form. The line a¹ will
represent a line within the lower edge of the plate, equal to the overlapping of
the plate. There are also other bars g with slot openings in the direction
of three lengths, and screws and nuts h, by which those bars may be secured in
any required position; and there are other plates i, with holes' there, through
which are capable of being placed, at any required position, on the bars g, by
means of the screws ³. The object of these bars 9 and plates i is, that when
there are ribs or other bars to which the metal plates have to be fixed, the
positions of the holes in such bars or ribs may be correctly ascertained. k, k,
are other plates with holes k¹, these are secured to the bar a by set screws k³,
as shewn. The object of these plates k is, by placing the holes ¹ over those
in the plate already fixed, to obtain the positions of corresponding holes in the
plate, the form of which is being obtained; and then, when the parts are all
thus arranged and fixed by the set screws, I take the apparatus, lay it upon
the plate to be cut and punched, and, by chalk or otherwise, I mark the out-
line for the shears to cut, and in like manner I mark through the holes ¹ and
k', for the punches to punch through.
Having thus described the nature of my said Invention, and the manner
of carrying the same into effect, I would have it understood that I do not
confine myself to the precise details shewn and described, so long as the
peculiar character of the Invention be retained. But what I claim is, the
mode of arranging and combining apparatus to be used as templates to obtain
the required form of the plates (and the position of the various holes therein)
employed in the construction of ships or other vessels, and steam boilers.
In witness whereof, I, the said Charles John Mare, have hereunto set
my hand and seal, this Twenty-seventh day of August, in the year of
our Lord One thousand eight hundred and fifty-two.

page_text: AND BE IT REMEMBERED, that on the Twenty-seventh day of August,
in the year of our Lord 1852, the aforesaid Charles John Mare came before
our said Lady the Queen in Her Chancery, and acknowledged the Specification
aforesaid, and all and every thing 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 Twenty-seventh day of August, in the year of our Lord One
thousand eight hundred and fifty-two.