A METHOD OF CONSTRUCTING REGISTER AND OTHER STOVES
Year: 1815

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
CHISHOLM, of Edinburgh, in that part of Great Britain called Scotland, Smith,
sends greeting.
WHEREAS His most Excellent Majesty King George the Third, by
His Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Twenty-first day of August last, did, for Himself, His heirs
and successors, give and grant unto me, the said John Chisholm, His special
Licence that I, the said John Chisholm, my executors, administrators, and
assigns, or such other as I, the said John Chisholm, my executors, adminis-
trators, or assigns, should at any time agree with, and no others, ftom 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
Town of Berwick-upon-Tweed, my Invention of "A METHOD OF CONSTRUCTING
REGISTER AND OTHER STOVES;" in which said Letters Patent there is contained
a proviso, obliging me, the said John Chisholm, 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 inrolled in His Majesty's High Court of
Chancery within two calendar months next and immediately after the date
of the said 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
John Chisholm, do hereby declare that the nature of my said Invention,
and the manner in which the same is to be performed, is described and ascer-

page_text: tained in the plan hereunto annexed and the following explanation thereof,
that is to say:-
Figure 1 represents a register stove fully mounted, which is moved by a
screwed rod attached to the inside lintel, the front lintel being removed to
shew the position of the rod; the rod turns in sockets attached to the inside
lintel and remains in its position, and the fronts are moved by the screws at
each end turned by the projecting handle; the corner blocks which are fixed
to the upright sides of the fronts are also removed to shew the operation of
the screws. The stove is represented at its smallest size.
Figure 2 represents a back side view of a register stove combining two
methods of altering the size, the side opposite the right hand being moved in
one way, and that opposite the left in another way.
side of Figure 2 opposite the left hand,
a, a, represents the back in one piece,
the cheeks, which are attached to the
Figure 3 represents a section of the
and is a complete section of Figure 1.
the ground plan of which is b, b, b, b,
back at c, c, c, c, by the hinges at d, d, d, d, and move upon them, as repre-
sented at a, a, in Figure 2; e, c, e, e, the fronts, which are connected with the
checks by the hooks or pins at f, being introduced into the space or half hinge
at g, as représented at b, b, Figure 2; h, the smoke board or cover of the
stove, two pins which are inserted into the spaces or oblong holes at the top
of the cheeks j, j, the use of which is to keep the top board always close to
the back of the lintel, whether the stove grate is altered to a larger or smaller
size, as at c, c, Figure 2; k is a back side view of the inside lintel, represented
in front on Figure 1, at a; 1, 1, are the screws which work upon the fronts of
the register stove, and by which its size is altered; m, the moveable handle by
which the screws are turned; n, n, on the fronts, and o on the base of the
fronts, are the screwed sockets in which the screw p works, and by which it
éncreases or diminishes the height of the fronts, as at d, Figure 2; q is a
corner block with two screws for fixing it upon the front at 1, 7, which covers the
screws 1, 1, and which is fastened to the upright parts of the fronts, as repre-
sented at e, e, in Figure 2, by screwed nuts, and slides along the lintel as the
upright parts of the fronts and the cheeks are moved to a greater or less size.
When the pattern of the stove will admit of it, the blocks may be cast in one
piece with the upright fronts.
Figure 4 represents a section of the side, which is opposite the right hand
in Figure 2. a, a, is a back side view of the back, as in Figure 3; b, b, b, b,
the cheeks, which are attached to the back at c, c, c, c, by the hinges d, d, d, d,
and move upon them at f, Figure 2; c, e, e, e, the fronts, which are connected
with the cheeks by the hooks f, f, ff, which are meant to be inserted into the

page_text: spaces or half pair of hinges upon the cheek g, g, g. 9, as at g, Figure 2; h, h,
are brackets which are rivetted to the checks, and which expand and contract the
fronts and cheeks of the stove by means of the screws i, i, the points of which
terminate upon the back, or on the sockett attached to the back, as represented
at h, Figure 2, and are fixed by a false rivet, which allows them only to turn
in the backet; k, k, are brackets rivetted to the cheeks, which, when placed
under the screwed sockets 1, 1, upon the front, are connected with them by the
screwed nail m, m, which is fixed in the bracket by shoulder and rivet, which
allows it only to turn. The hole in the bracket is made oblong in order to the
moving of the fronts and cheeks, and therefore the nail requires a washer; by
means of these the front of the stove is raised or lowered, as represented at i;
in Figure 2; n, n, are spaces made in the fronts for altering the situation of
the case of the front according to the height at which it may be necessary to
place it; and it is fixed in its position by means of a screw which is rivetted
into the case, and passed through these spaces, and made fast by a nut behind,
as represented at j, Figure 2; o is the lintel of a stove made agreeable to the
plan opposite the right hand in Figure 2; p, p, the corner blocks of the front;
2, 9, are screwed pins rivetted to the blocks, which are passed through the
spaces in the lintel 7, 7, in which the sides of the front move along when
impelled by the springs and screws h, i, in altering the size of the stove;
when the stove is set to its proper size it is made fast by a screwed nut, as
represented at k, Figure 2.
Figure 5 is a front view of a full mounted Forrest stove grate, of which the
fronts a, a, and the cheeks b, b, move upon the slips c, c, and the hobs or top
plates d, d, move upon the slips e, e; f, f, f, f, are the back cheeks, and g is
the back.
Figure 6 is a back view of that stove inclining forward, so that the under
part of the bobs or top plates may be seen with the slides and screws on which
it moves and by which it is fastened.
Figure 7 is a section of this stove or grate. a, a, a, a, a, a, are the front
checks and hobs or tops joined together, which may either be cast in one piece
or joined in the usual manner; 6 are the slips, back cheeks, and main back
which are all cast in one piece; c is the bottom of the fire-place, put in the
usual way is the fret, or ridge, or apron, which is also attached to the
fire-place in the usual manner; 9 are pieces of iron rivetted to the cheeks,
with a space cut in them to receive the screwed pins upon the inside cheek
at h, as at a in Figure 6; i are slips of the same kind upon the under
top plates, which move upon the screwed pin in the under side of the upper

page_text: top plate, as at in Figure 6; the pins are kept in the slips by screwed nuts,
which also serve to fasten the grate when it is placed at the size wanted, as
also seen at in Figure 6.
Figure 8 is a back view of a Forrest stove upon another construction.
Figure 9 is a section of Figure 8. a are the front cheeks and hobs put
together in the usual manner; bare slips cast to the cheeks, or may be made
of malleable iron and rivetted to the cheeks; e is the back of the grate; d are
screwed pins fastened into the back, corresponding to the slips in the cheeks b,
in which they move and are made fast by screwed nuts, as at a, Figure 8.
Figure 10 is an end view of a kitchen grate seen from below. a is the back
view of the front; b is a strap into which the front bars are fixed, and also
the bottom bars at c; d are the front and bottom bars, which are passed
through spaces made for them in the cast-iron chest at e; fare screws which
pass through the strap, and are inserted into the cheek and made fast by
shoulder and rivet, allowing it only to turn in the check, and by these the size
of the grate is encreased or diminished; g is the back bar; h is the top plate;
i is a slit in the top plate; j is a piece rivetted into the back bar which moves
in the slip i; K is a piece rivetted into the top plate of the grate; t is a screw
which passes through the two last-mentioned pieces, and which must be turned
in the same proportion with the screws f, f; the use of it is to contract or
expand the back part of the grate, while the others contract or expand the
front. The other end of the grate is precisely the same as the one which is
seen in the Drawing.
Figure 11 is one end of a kitchen grate seen from below, made to alter
after a different manner. a is the back view of the front; b, the under side of
the top plate; c, the cheek; d, the front bars, which pass through the cheek
in space made for them; e, the bottom bars, which also pass through holes in
the cheek; f is an iron strap into which the front bars are fastened; g, an iron
strap into which the bottom bars are fastened; h, slips of iron made fast to
the cheek at i, and pass in a direct line behind the front plates; j is a screwed
nail made fast in the strap, and projects from behind it in a direct line, and
is passed through the iron slips; in these they are moved according as the
grate is to be enlarged or diminished; k are two screwed nuts into which
work upon the screw nails, and by them the grate is fixed when it is set to its
proper size.
The back part of the grate is altered in the same manner by
screwed pins inserted into a slit in the top plates, and afterwards made fast
by a screwed nut below, as at c.
The alteration which may be necessary upon removing these stoves from

page_text: one fire-place to another can be made at any time without the assistance of a
smith, and does not injure the appearance or strength of the stoves.
In witness whereof, I, the said John Chisholm, have hereunto set my
hand and seal, the Nineteenth day of October, in the year of our Lord
One thousand eight hundred and fifteen.
one fire-place to another can be made at any time without the assistance of a
smith, and does not injure the appearance or strength of the stoves.
In witness whereof, I, the said John Chisholm, have hereunto set my
hand and seal, the Nineteenth day of October, in the year of our Lord
One thousand eight hundred and fifteen.
WAL. RUTHERFORD, Witness.
(L.S.) JOHN CHISHOLM.
Walter Rutherford, of the City of Edinburgh, in that part of Great Britain
called Scotland, Clerk to William Ellis, Writer in Edinburgh, maketh oath
and saith, that he was present and did see John Chisholm, of Edinburgh
aforesaid, Smith, duly sign and seal the Specification or instrument in writing
hereunto annexed, and that the name or character "John Chisholm," set and
subscribed thereto, the person signing and sealing the same, is of the proper
handwriting of the said John Chisholm, and that the name or character
"Wal. Rutherford," subscribed thereto as the witness to the signing and
sealing thereof, is of this deponent's proper handwriting.
Sworn at Edinburgh aforesaid, this Nineteenth
day of October 1815 before
WAL. RUTHERFORD.