IMPROVED APPARATUS FOR CUTTING OR CARVING ORNAMENTAL FORMS IN WOOD, STONE, AND OTHER MATERIALS
Year: 1848

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
IRVING, of Trigon Road, Kennington, Engineer, send greeting.
WHEREAS IIer present most Excellent Majesty Queen Victoria, by. Her
Royal Letters Patent under the Great Seal of England, bearing date at
Westminster, the Twenty-third day of February, in the eleventh year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the.
said William Irving, Her especial license, full power, sole privilege and autho-
rity, that I, the said William Irving, my executors, administrators, aud
assigns, and such others as I, the said William Irving, my exccutors, admi-
nistrators, 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 mentioned, should
and lawfully might make, use, exercise, and vend, within England, Wales, and
the Town of Berwick-upon-Tweed, my Invention of "IMPROVED APPARATUS
FOR CUTTING OR CARVING ORNAMENTAL FORMS IN WOOD, STONE, AND OTHER
MATERIALS;" in which said Letters Patent is contained a proviso obliging me,
the said William Irving, by an instrument in writing under my hand and
seal, particularly to describe and ascertain the nature of my said Invention,
and in what manner the same is to be performed, and to cause the same to
be enrolled 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.
NOW KNOW YE, that in compliance with the said proviso, I, the said
William Irving, do hereby declare that the nature of my said Invention, and

page_text: the manner in which the same is to be performed, is particularly described
and ascertained in and by the following description thereof, reference being
had to the Drawings hereunto annexed, and to the letters and figures marked
thereon (that is to say): :-
The Invention which constitutes the subject of my present Patent is a
certain novel arrangement or construction of apparatus or machinery, consisting
of known parts, to be, when so arranged, employed for cutting or carving
ornamental forms in wood, stone, or other materials. The object of this novel
arrangement or construction of machinery is, to obtain, under the command of
the operator, a movement of the cutting tool by which it may be enabled to
follow any curve or straight line that shall be required to produce the work
without moving the table whereon the material to be wrought is fixed, either
in a circular direction on a centre, or sliding it transversely, as heretofore has.
been found necessary in order to bring all the parts of the surface under the
operation of the cutter where the pattern to be wrought extended both in
breadth and length. In this my present improved arrangement or construction
of machinery for cutting or curving ornamental forms the table has only a
Iongitudinal sliding movement, and even this longitudinal movement of the
table may be unnecessary where the work to be wrought does not exceed
about two feet in extent. By the employment of this my present improvement
the very cumbrous and expensive construction of framing and railways for. the
table and work to slide upon, which has heretofore been found necessary in
machinery of this kind, may be partly, if not altogether, dispensed with, for, by
the range of movement allowed to the cutting tool in my present machinery,
devices and mouldings, of not very large extent, may be accurately cut by
fixing the work under operation upon any firm resting place or bench within
the reach of the swinging and sliding frame of the cutter.
In the accompanying Drawings Fig. 1 represents a front elevation of the
improved machinery complete; Fig. 2 is an end elevation of the same; and
Fig. 3, a horizontal view, looking upon the machinery from above. a, a, is
the bench upon which the table b, b, carrying the material to be wrought lies
or runs longitudinally, in which latter case the under side of the table has
rollers c, c, running upon horizontal rails d, d.
A vertical standard e, e, e,
is affixed to the back of the bench, for the purpose of carrying the
frames of the cutter and its appendages. The frames of the cutter con-
sists of three distinct parts; (viz¹), the part f, f, which slides vertically;
the part 9, g, which slides horizontally in a transverse direction across the
table; and the part h, h, which swings horizontally in a circular direction
upon pivots. The block of wood, stone, or other material intended to be

page_text: operated upon having been firmly fixed upon the table or bench, as at A, A, A,
the apparatus may be set to work by rotary motion being communicated' to
the drill or cutter i by bands leading from a driving power in the way shewn
and generally understood.' The treadle 1, by means of well-known leverage,
is employed for giving a vertical movement to the frame f, by which the
cutter is raised from the work, 'or lowered into the work, as heretofore
practised. In order to shift the cutter crossways of the table, to suit
any breadth of device, the winch or handle k must be turned by the
operator, when, by a rack and pinion m at the back of the frame g, that
frame will be slidden transversely over the table. The frame g having been
thus brought to its desired situation, the cutter i may then be moved by
the operator in a circular direction, and the frame g slidden in or out, as the
pattern may be more or less extended, in order to trace any required figure
upon the work, the frame h turning horizontally upon its pivots n, n. Thus
it will be perceived, that by the combined movements of the transverse sliding
frame g and the swinging frame h, under the direction of the operator, the
cutter i may be made to trace and cut any curved or straight grooves or
mouldings in the block A without shifting the position of the table whereon
the block A is fixed; but should the subject or device to be cut in the block.
be of such extent lengthways as the cutter could not reach when the table is
stationary, then the table. may be slidden longitudinally upon its railway to the
desired distance.
Having now described the construction of my Improved Apparatus for
Cutting or Carving Ornamental Forms in Wood, Stone, and other Materials,.
I wish it to be understood, that I do not intend to claim as of my present
Invention all the parts of the machinery shewn in the Drawings; the con-
struction of cutter and mode of driving it, the elevation and depression of the
cutter frame, and the longitudinal sliding movements of the table upon rail-
ways having been included in my former Patent. But that which I desire to
claim under the above in part recited Letters Patent is, the attachment of the
swinging cutter arm to a frame capable of being slidden in a transverse hori-
zontal direction crosswise of the table for the purpose of affording the means.
of bringing the cutter to operate upon a breadth of surface to cut devices or
patterns without shifting the position of the work or of the table on which it
is fixed.
. In witness whereof, I, the said William Irving, have hereunto set my
hand and seal, this Twenty-second day of August, in the year of our
Lord One thousand eight hundred and forty-eight
W (L.S.) IRVING.

page_text: AND BE IT REMEMBERED, that on the same Twenty-second day
of August, in the year above mentioned, the aforesaid William Irving
came before our Lady the Queen in Her Chancery, and acknowledged the
Specification aforesaid, and all and every thing therein contained, in form
above written. And also the Specification aforesaid was stamped according 5
to the tenor of the Statute in that case made and provided.