AN IMPROVED APPARATUS FOR FORMING AND CUTTING ELLIPTICAL FIGURES
Year: 1855

page_text: LETTERS PATENT to Edward Brown Hutchinson, of Moorgate Street,.in.
the City of London, Artist, for the Invention of "AN IMPROVED APPARATUS
FOR FORMING AND CUTTING ELLIPTICAL FIGURES."
Sealed the 10th June 1856, and dated the 15th December 1855.
PROVISIONAL SPECIFICATION left by the said Edward Brown Hutchin-
son at the Office of the Commissioners of Patents, with his Petition,
on the 15th December 1855.
I, EDWARD BROWN HUTCHINSON, of Moorgate Street, in the City of London,
Artist, do hereby declare the nature of the said Invention for AN IMPROVED
APPARATUS FOR FORMING AND CUTTING ELLIPTICAL FIGURES, to be as follows:-
My said Invention consists of a central horizontal arm with adjustable ends,
each terminating with a pulley for carrying an endless band, and is firmly
screwed or otherwise attached horizontally at its centre to the lower end of a
strong metal or other vertical shaft secured above to any suitable frame or
beam. A little above the fixed horizontal arm, the vertical shaft is rounded
and made to carry a peculiarly constructed sliding lever, being hollow with a
slot cut centrally through its whole length, from which protrudes a hooked
catch worked backwards and forwards by a spiral spring or other like spring.
The hollow lever is placed beside the rounded portion of the vertical shaft, where

page_text: it is retained by a ring or other contrivance enabling it to describe circles
round the shaft, and at one end it carries a plane, with cutters enclosed by an
outer guide which also has a pulley.. When, now, an endless band is put on the
pulleys in the ends of the horizontal arm and the plane pulley, the action of
the plane is thereby limited to the describing of elliptical figures, and the
band is kept taught away from the centre at every point of the figure by the
outward pressure of the spiral spring in the hollow lever. The pulleys in
the central horizontal arm are the two fixed points, round which the endless
band works, while the plane carrying another pulley is the variable point cutting
figures when cutting instruments are used; but which may be varied to suit the
purposes of moulding, marking out, or like productions of elliptical figures.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Edward Brown Hutchinson in the Great Seal Patent
Office on the 14th June 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,, EDWARD
BROWN HUTCHINSON, of Moorgate Street, in the City of London, Artist, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifteenth day of December, in the year of our Lord
One thousand eight hundred and fifty-five, in the nineteenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Edward Brown Hutchinson,, Her special, licence, that I. the; said
Edward Brown Hutchinson, my executors,, administrators,.. and assigns, or
such others as I, the said Edward Brown Hutchinson,,.my. executors,. admi-
nistrators, 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,
án Invention for AN IMPROVED APPARATUS FOR FORMING AND, CUTTING ELLIPTICAL
FIGURES, upon the condition (amongst others) that I, the said Edward Brown
Hutchinson, 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.

page_text: NOW KNOW YE, that I, the said: Edward Brown; Hutchinson,, 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:-.
My said Invention consists of a particularly constructed apparatus for draw-
ing, moulding, cutting, or otherwise forming elliptical Figures.. :
And for the better. understanding of the same, I will now proceed to detail
the particulars thereof, reference being had to the Drawings hereunto annexed,
in which the same, letters refer to, like parts throughout.
DESCRIPTION OF THE DRAWINGS.:
Figure 1 is, a front elevation of the apparatus; Figure 2 is a vertical section
of the cutting box; and Figure 3 is an enlarged, view of the regulating screw.
A is the centre through which, B,, a beam, revolves, secured by, a,.a,, a collar
on either side, and with a screw right and left, regulated by a crank fitting
on to the end b, which when turned shortens or lengthens the space
between the two pulleys c, d; C, a tube .containing. a spiral spring and a
piston D, sliding backwards and forwards, accommodating the pressure of
the spring while forming the oval'; E, a ring with a tightening screw to keep
the tube C, which is plain and not slotted, from shifting; F, the cutting box
containing a large screw or, pulleys. G, round which is the endless band e, e, e,
regulating the size of the ovals by means of a spanner H, secured with a nut;
and I is the cutting box, with moveable face plate regulated by a thumb-
screw K.
It will thus be seen that I adopt a central horizontal arm or beam, with ad-
justible ends, each terminating with a pulley for carrying an endless band, and
is firmly screwed or otherwise attached horizontally at its centre to the lower
end of a strong metal or other vertical shaft which may be secured from above to
any suitable frame or beam. A little above the fixed horizontal arm, the vertical
shaft is rounded and made to carry a particularly constructed sliding lever,
being hollow and either plain or otherwise, with a slot cut centrally through
its whole length, from which slot should protrude a hooked catch worked back-
wards and forwards by a spiral spring, or other like spring. The hollow spring
lever is placed beside the rounded portion of the vertical shaft where it is
retained by a ring E, or other contrivance, enabling it to describe circular
movement round the shaft; and at one end it carries a plane with cutters
enclosed by an outer guide or cutter box, which also has a pulley. When,
now, an endless band is put on the pulleys in the ends of the horizontal
arm and the plane pulley, the action of the plane is thereby limited to the

page_text: describing of elliptical figures, and the band is kept taught away from the
centre, at every point of the figure, by the outward pressure of the spiral spring
in the hollow lever. The pulleys in the central horizontal arm are the two-
fixed points round which the endless band works, while the plane, carrying
another pulley, is the variable point, cutting figures when cutting instruments
are used; but which in this respect may be varied to suit the purposes of
moulding, marking out, or like productions of elliptical figures.
Having thus fully described my said Invention, I would here observe that I
do not confine myself to materials or dimensions, as these may be considerably
varied, neither do I restrict myself to any particular form of cutters, or
moulding, or drawing instruments; but what I do claim as my Invention is,
namely, the peculiar construction of an apparatus for forming or cutting
elliptical figures, as described.
In witness whereof, I, the said Edward Brown Hutchinson, have hereunto
set my hand and seal, this Tenth day of June, in the year of our
Lord 1856.
EDWARD BROWN HUTCHINSON. (L.S.)