IMPROVEMENTS IN COOKING RANGES
Year: 1883

page_text: LETTERS PATENT to John MºIntyre Shaw of Glasgow in the County of
Lanark North Britain for an Invention of "IMPROVEMENTS IN COOKING
RANGES"
PROVISIONAL SPECIFICATION left by the said John M'Intyre Shaw at tho
Office of the Commissioners of Patents on the 26th June 1883.
"
JOHN MCINTYRE SHAW of Glasgow in the County of Lanark, North Britain
"IMPROVEMENTS IN COOKING RANGES"
This Invention which relates to Improvements in cooking ranges has reference
to that class of such ranges which are convertible at pleasure from a closed to an
open cooking range or vice versa.
The main object of the present improvements is to enable a sufficiently long
open flue to be drawn out over or towards the fire of the rango when the range is
converted for acting as an open range and this is especially advantageous when the
back flue of the range is shallow.
This object is effected by constructing the sliding flue telescopic, that is to say,
of two or more lengths, which slide one within the other so that when drawn out
they form either the whole or parts of a flue of any desired length or extent and
when shut up into the flue at the back of the range, occupy but a small or shallow
depth. These telescopic portions under one arrangement consist of two sido pieces
and a cross-bar or bars by which they are held together and the front telescopic
portion is provided with a door or blower fitted with an eye in front.-This door
or blower when the telescopic sliding flue is shut closely into the flue at the back
of the range occupies a vertical position and the eye in its front is for the purpose
of enabling it to be taken hold of by a hook when it is required to draw out the
flue over or towards the fire.-When the flue is so drawn out this door or blower
may either be allowed to fall down into an inclined position at the back of the fire
or it may be pushed further back into the flue, or it may be taken out of the
flue. The top of the flue is made either separately, or it may be made in one piece
with the side pieces, if made separately, it can be arranged so that the loose top
piece of the range which is taken off when the range is being worked as an open
range serves as the top of the flue by being placed on the sides.
In place of the door or blower herein before described a separate door or blower
fixed on by hooks or pins at any required position may be used.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said John McIntyre Shaw in the Great Seal Patent Offico on the
22nd December 1883.
JOHN MCINTYRE SHAW of Glasgow in the County of Lanark, North Britain
"IMPROVEMENTS IN COOKING RANGES
"
My said Invention which relates to Improvements in cooking ranges has
reference to that class of such ranges which are convertible at pleasure from a
closed to an open cooking range or vice versa.
The main object of the present Improvements is to enable a sufficiently long
open flue to be drawn out over, or towards the fire of the range when the range is
converted for acting as an open range, and this is especially advantageous when
the back flue of the range is shallow.
This object is effected by constructing the sliding flue telescopic, that is to say,
of two or more lengths, which slide one within the other so that when drawn out
they form either the whole or parts of a flue of any desired length or extent and
when shut up into the flue at the back of the range, occupy but a small or shallow
depth. These telescopic portions under one arrangement consist of two side pieces
and a cross bar or bars by which they are held together, and the front telescopic
portion is provided with a door or blower fitted with an eye in front. This door
or blower, when the telescopic sliding flue is shut closely into tho flue at the back
of-the-range, occupies a vertical-position, and the-eye-in-its-front-is-placed there for
the purpose of enabling it to be taken hold of by a hook when it is required to
draw out the flue over or towards the fire. When the flue is so drawn out this
door or blower may either be allowed to fall down into an inclined position at the
back of the fire, or it may be pushed further back into the flue, or it may be taken
out of the fluc. The top of the flue is made either separately, or it may be made
in one piece with the side pieces,-if made separately, it can be arranged so that
the looso top piece of the range, which is taken off when the range is being worked
as an open range, serves as tho top of the flue by being placed on the sides.
In place of the door or blower hereinbefore described, a separate door or blower
fixed on by hooks or pins at any required position may be used.
And in order that my said Invention may be properly understood, I now
proceed more particularly to set forth the system, mode, or manner in or under
which the same is or may be used or practically carried into effect, reference being
had to the accompanying drawings and to the Figures and letters marked thereon,
that is to say :-
Figures 1 and 2 represent respectively in front elevation and transverse section
a portion of a cooking range fitted with improvements constructed according to my
present Invention, the said improvements being in the position necessary for the
cooking range to be used as a closed range.
Figures 3, 4 and 5 represent the said improvements respectively in front
elevation, transverse section and plan in the position necessary for the cooking
range to be used as an open range.
Figure 6 represents in transverse section a modification of the said improvements,
also in the position necessary for the cooking range to be used as an open range.
In carrying out my present improvements I construct the long open fluo a,
telescopic, that is to say, of two or more parts, these parts being so arranged as to
slide one within the other, so that when drawn out they form either the whole or
parts of a flue of any desired length or extent, and when shut up unto the flue b,
at the back of the rango, occupy but a small or shallow depth. At the back of

page_text: each part of the telescopic flue there is formed the outer flange c, and at the front
of each such part there is formed the inner flange d. The flange e, upon the first
or forward part of the telescopic fluc is fixed to the said part by screws or by
any other suitable means, after the other parts of the said flue have been placed in
their required order. These flanges c, and d, allow of the parts of the fluo being
drawn out to their full extent, and prevent them from coming apart, and the
flange e, is provided to abut against the front of the back plate, when the flue is
shut and the range being used as a closed range. The flange c, upon the last or
rearward part of the flue is formed large enough to prevent the said part being
drawn in a forward direction through the back plate f. The blower g, is prefer-
ably formed independently of the flue and is held in its required position, when
the telescopic flue is not being used, by the stop , which is secured into the hot
plate i. This stop also allows of the blower g, arriving automatically at its normal
position when the telescopic flue is being closed or pushed back by reason of tho
underside or back of the said blower being presented at an angle to the stop h;
the forward edge of the said blower being pressed upon a Bango projecting
inwards at the front of the first or forward part of the flue a. At the back of tho
blower 9. there are provided two arms j, which carry at their ends the screwed
nuts k, through which the screws l, pass. It is obvious that the angle at which the
blower 9, lies relatively to the hot plate i, when it is resting thereon, as shewn at
Figure 4, is adjustable by these screws 7, and it may be retained at any angle by
the pinching nuts m, being jammed up against the nuts k. Tho object of this
angular adjustment is to enable the fluo space between the upper edge of the said
blower g, and the under surface of the teloscopic flue to be increased or decreased
according as the draught is required to be increased or decreased. To prevent tho
last or rearward part of the telescopic fluc from being pushed through the back
plate f, the two stops n, are provided in the necessary position upon the hot
plate i.
It will be seen at Figures 1 to 5, that the portion o, of the hot plate i, is removed
from the top of the fire, when converting the closed range into an open range, and
is placed in the top of the telescopic flue which is rebated out to receive the said
portion, or the said flue may be formed as represented in Figure 6, with a closed
top either as represented in that Figure in three parts or in two or any other con-
venient number of parts. There are two or more pockets p, formed in the
portion o, of the hot plate i, for the insertion of two or more hooks or tools to
allow of the said portion being easily moved from one position to another.
When it is desired to draw out the telescopic flue, the blower g, is pulled forwards
by a hook being inserted in the eye q, when the said flue may be extended
forwards into any required position, the blower g, is then adjusted as required,
and in the case of the form of carrying out my improvements shewn at Figures 1
to 5, the portion o, of the hot plate i, is placed in the top of the said flue, or in
the case of the telescopic flue a, having a closed top as represented in Figure 6, it
is placed aside until the cooking range is next required as a closed range. There
is also the portion r, of the hot plate i, or the moulding of the same rendered
removeable; this is effected by fitting the said portion to the bar 8, which is hinged
to the upper part of the fire bars t, being secured in its normal position by means
of the fork u, engaging with the stop v. For supporting this said moveable
portion r, when it is canted over to the front, there is provided the stop w, formed
on the front moulding of the range or any other convenient part.
Having now described and particularly ascertained the nature of my said
Invention and the system, mode, or manner in or under which the same is, or may
be used or practically carried into effect, I would observo in conclusion that what
I consider to be novel and original and therefore claim as the Invention secured to
me by the hereinbefore in part recited Letters Patent is :-
First. The means for converting closed cooking ranges into open cooking
ranges consisting of the telescopic flue a, of two or more parts and the removeable
portion o, of the hot plate i, being formed to fit into the top of the said telescopic

page_text: Blue substantially as and in the manner hereinbefore set forth with reference to
Figures 1 to 5 (inclusive) of the accompanying drawings.
Second. The combination of a flue a, and removeable portion o, with the adjust-
able blower g, substantially as and for the purposes herein before set forth with
reference to the accompanying drawings.
Third. The alternative form of telescopic fluo substantially as hereinbefore
.described with reference to Figure 6 of the accompanying drawings, or the
construction of the said flue of two or other convenient number of parts.
In Witness Whereof I the said John McIntyre Shaw have hereunto set my
hand and seal this eighteenth day of December in the year of our Lord One
thousand eight hundred and eighty-three.
TAHIN 1 STAT
Tel