IMPROVED APPARATUS FOR HEATING APARTMENTS PART OF WHICH APPARATUS IS APPLICABLE FOR PREVENTING DRAUGHTS
Year: 1884

page_text: TRUTTOIONAL
1 JOHN DUNNELL GARRETT of Southwold in the County of Suffolk Gentleman
do hereby declare the nature of my invention for IMPROVED APPARATUS FOR
HEATING APARTMENTS PART OF WHICH APPARATUS IS APPLICABLE FOR PREVENTING
DRAUGHTS, to be as follows:-
This invention relates mainly to apparatus for heating apartments alternately or
when the use of one apartment is substituted for that of another.
To this end I make an opening through the dividing wall of the two apartments
carrying the chimney-flues giving it about the proportions usually made to receive
a stove grate. In this opening I set up a rectangular frame of cast iron which
I fit tightly in place by the aid of cement resting it upon a hearth of stone. Into
the centre of the hearth I sink a footstep forming the lower part of the frame, to
receive a trunnion projecting from the lower edge of a partition with which I close
the opening in the rectangular frame. In the upper part of the rectangular frame
I cast a recess to receive a central bearing block. A vertical hole is made through
this block for the insertion of a trunnion which holds the partition in suspension.
Upon the opposite sides of this partition I mount a stove grate of any approved
construction and below the same an ash pan. These grates I propose to attach to
the partition by means of trunnions with which they are cast near their upper
part. This will allow of the grates hanging either vertically or at an inclination
outwards from the partition as may be found most convenient. For tipping the
stoves outwards I may use a cam or its equivalent operated by a lover. The
grates will stand when in use immediately under their respective flues, so as to
enable the smoke from either grate to pass freely up the same.
When it is desired
to shift the position of the grates it is only necessary to move the partition half a
turn when the grate containing the ignited fuel will be shifted from one apartment
to the other. This partition for the purpose to be presently described I make
hollow of sheet metal and secure between the plates the upper and lower trunnions.
The upper trunnion is fitted with a nut or collar by which the partition is
suspended on the block in the rectangular frame.
To prevent the possibility of the ascending smoke from a fire iu ono apartmont
entering into the adjacent apartinent through the crevicos between the partition
and the frame, I fit the partition internally at its edges with sliding plates which

page_text: when protruded will enter into grooves in the enclosing frame and thereby close
the crevices and (acting as bolts) lock the partition in position. The side plates
I form in pairs while the upper and lower plates are single and work in a plane
between the side plates. These plates are severally furnished with guide rods
which enter guides fitted within the partition and I connect the plates by means
of link rods with a disc or crank plate mounted in or near the centre of the
partition. The lower or suspended sliding plate I weight so as to give the crank
plate a tendency to thrust out the other locking plates, and by means of a key
fitting the spindle of the disc or crank plato I impart a slight axial motion thereto
when it is desired to draw in the locking plates preparatory to changing the
position of the stove grates with respect to the apartments. I would remark that
a revolving partition constructed and fitted as above described may be used not
merely for transferring stove grates from one apartment "to another, but acting
as it does like a locking turntable it may be applied for shifting the position of
other articles attached thereto and of closing an opening between other division
walls than those which are formed with chimney flucs.

page_text: I JOHN DUNNELL GARRETT of Southwold in the County of Suffolk Gentleman
do hereby declare the nature of my invention for IMPROVED APPARATUS FOR
HEATING APPARATUS, PART OF WHICH APPARATUS IS APPLICABLE FOR PREVENTING
DRAUGHTS and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
This Invention relates mainly to apparatus for heating two apartments
alternately, that is, when the use of one apartment is substituted for that of
another.
To this end I make an opening through the dividing wall of the two apartments
carrying the chimney Blues, giving the opening about the proportions usually made
to receive a stove grate. In this opening I set up a rectangular frame of cast iron
which I fit tightly in place by the aid of cement resting it upon a hearth of stone
Into the centre of the hearth I sink a footway forming the lower part of the frame
to receive a trunnion projecting from the lower edge of a swivelling partition with
which I close the opening in the rectangular frame and which serves to carry on
one or both of its sides, a stove grate capable of adjustment thereon as will be
hereafter explained.
In the accompanying drawings I have shewn two arrangements of my Invention
in one of which the swivelling partition is made hollow while in the other it is a
single plate of cast iron.
In Sheet I of the drawings
Fig 1 is a front elevation of my hollow swivelling partition filling an opening in
the wall which separates the two apartments designed to be heated such opening
being immediately below the flues through which the gases of combustion given off
from the stove grates carried by the partition find their vent.
Fig 2 is a transverse section taken in the line 1. 2 of Fig 1 and
Fig 3.is a sectional plan of the same taken in the line 3. 4 of Fig 1.
In these Figures A A is a rectangular frame of cast iron in which the hollow
partition B is mounted. This partition is composed of two parallel plates
connected securely together by screws entering spacing blocks which may also
form guides for the locking plates hereafter mentioned.
The rectangular frame A is cast at its upper and lower part with recesses for
the reception of the central bearing block a and a' which are to receive the
trunnions b b of the partition B. .
The recess to receive the upper block a' has its vertical sides splayed and the
ends of the block a' are inclined outwards and upwards to correspond thereto.
The hole in this block is made conical to receive a cone b which is screwed on to
the upper trunnion b.-The weight of the partition is thus held in suspension.
In fitting the partition in position in the frame the blocks a a' are placed upon
the trunnions and the cone 6 is screwed on the upper trunnion a portion of
the hearthstone which is made removable will enable the lower block a to be.
slidden in to place while the upper block is being forced home in its recess. The

page_text: removable portion of the hearthstone may then be replaced and the lower block
will thus be secured in position, while the application of a screw to the upper block
will servo to fix it in the frame. A modification of the manner of carrying the
partition and mounting it on the rectangular frame is shown in the diagram
Fig: 14.
The blocks or shoes which receive the trunnions are made segmental on one edge
and fit into corresponding rocesses made in the frame and are held in place by
screw bolts. This arrangement of shoe bearings affords a means of taking out and
replacing the partition in the opening. To remove the partition it is first turned at
right angles to the frame and then tilted into the dotted position of the figure 1
when it is free to be removed.
CC¹ are two stove grates cast with hooks c at their upper onds to catch upon a
transverse rod 6ª carried by lugs be cast on the partition. These stove grates may
be of any approved construction and they are conveniently fitted with ash pans.
The mode shown in the drawing of attaching the stove grates to tho partition
will allow of the grates hanging either vertically or at an inclination outwards
from the partition as may be found most convenient. For tipping the stoves
outwards I use an excentric or cam c' mounted in the cheeks of the stove and at
the back of the grate; this excentric I operate by a lever fitted to the squared axlo
of the excentric. The grates it will be understood will stand when in use
immediately under their respective flues so as to enable the smoke from either
grate to pass freely up the same. When it is desired to shift the position of the
grates, it is only necessary to move the partition B half a turn, to shift the grate.
containing the ignited fuel from one apartment to the other.
To prevent the possibility of the ascending smoke from a fire in one apartment
entering into the adjacent apartment through the crevices between the partition B
and the frame A I fit the partition internally at its edges with sliding plates D
and D' which when protruded will enter into grooves in the surrounding frame
and thereby close the crevices and at the same time (acting as bolts) lock the
partition in position. These plates D D' are severally furnished with guide pieces
which work in guides formed in the spacing blocks d* and I connect the plates DD'
in pairs by means of link rods d d to the wheels D* respectively which wheels are
mounted in or near the centre of the partition and serve by their axial motion to
withdraw or thrust outwards their respective sliding plates D D'. The lower or
suspended sliding plate I weight so as to give the wheels a tendency to thrust out
the other locking plates or the tendency of the plates to lock automatically into the
frame may be imparted by means of springs. A key fitted to the wheel axle serves
to impart a slight axial motion to the wheels when it is desired to draw in the
locking plates preparatory to changing the position of the stove grates with respect
to the apartments.
As the plates D and D¹ are necessarily placed in different planes to prevent the
movement of the one pair interfering with that of the other it is necessary to
provide in the sides of the frame, A, a pair of vertical grooves into which the
plates D may lock alternately as the position of the swivelling partition is
roversed.
In sheet II of the accompanying drawings I have shown a modification of my
Invention in which the partition B is formed of one plate only and carries its
locking plates on opposite sides of the partition-This partition is intended only to
carry one stove but two may be applied if thought desirable.
Fig 4 is a front elevation of a stove mounted upon a swivelling partition of the
more simple construction.
Fig 5 is a cross section taken in the line 5 6 of Fig 4 and
Fig 6 is a sectional plan of the same taken in the line 7. 8 of Fig. 4.
The framing A in which the swivelling partition B is mounted is formed of a
V section and is not grooved on its inner face as in the first described arrangement,
to receive the sliding plates D D¹. The partition B is cast with an increased

page_text: the partition and corresponding to the central wheel of the first arrangement. An
increased thickness is also provided at the top and bottom edges of the partition to
receive the trunnions on which the partition turns in the frame A
Connected to one of these wheels D' by link rods d are the side plates D and
connected to the other wheel by link rods d' are the horizontal sliding plates D'.
The turning of these wheels, by means of a key d' attached to their axle will draw
the sliding plates inwards simultaneously or thrust them out as before explained..
Fitted loosely in a rebate made in the edges of these sliding plates are elastic
plates of steel or other metal (see the enlarged sectional view fig 5*) so arranged that
their outer edges bear respectively against the inclined faces of the frame A while
their inner edges bear against the partition B, when the plates are thrust outwards
thereby closing the crevices between the partition and the frame. In place of the
excentric for tipping forward the grate into the apartment I have shown a lever c'
which is pivotted to one of the side cheeks of the stove and serves as a strut which
bearing against the partition B will hold the stove at any desired angle to the
partition. This lever I securo in its adjusted position by means of a locking pin
as shown at Fig. 5.
I would remark that a revolving partition constructed and fitted as above
described may be used not merely for transferring stove grates from one apartment
to another but acting as it does like a locking turntable it may be applied for
shifting the position of other articles attached thereto, and of closing an opening
between other division walls than those which are formed with chimney flues.
Having now patticularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is
First: The adaptation to internal flue walls of the apparatus abovo described
whereby a stove or stoves may be presented to an apartment and withdrawn
therefrom with facility without establishing a draught through the opening in the
wall by which the transference is effected.
Second: The application to an internal wall of a swivelling or revolving pannel
fitted as above described, and mounted in a fixed frame, for the purpose of
facilitating the passage of persons or the transference of goods from one apartment
to another without the creation of draughts.
"