An Improved Reversible Damper Frame.
Year: 1891

page_text: Date of Application, 25th Nov., 1891
Complete Specification Left, 4th Apr., 1892-Accepted, 4th June, 1892
PROVISIONAL SPECIFICATION.
An Improved Reversible Damper Frame.
I, HERBERT HAGUE, Brook Terrace, Belper, in the County of Derby,
Modeller do hereby declare the nature of this invention to be as follows:-
The object of this invention is to provide a reversible damper frame which may
be cast in one piece, which will save something like fifty per cent. of the cost of
manufacture of the ordinary damper frame and in which the draught space is con-
siderably increased.
It is self-contained, requires no fitting and is adapted for
fixing either to cove plates or for fixing independently in brickwork.
A damper frame as usually made is formed in two parts, I form or cast mine in
one piece and the passage for the damper in the sides of the frame is formed by
internally projecting flanges about half the length of the side, at diagonally
opposite sides, thus each side has an upper and lower flange one above and one
below the damper the ends thereof being tapered off so as to guide the damper into
its position.
No obstructions can accumulate in this form of damper frame as in the old
arrangement, as when the damper is placed therein the dirt or other obstruction is
caused to fall down the flue, there being no ledge at the back underneath the
damper.
When used in connection with cove plates the bed of the damper frame, that is
to say the part which rests on the brickwork at the sides is made to project out-
wards and the brickwork is built upon this; the upper part is left open at the
front, and at the back the frame is carried over the damper to cut off the draught
and the lower part below the damper is left open.
In reversing the damper frame to be built into brickwork it is turned over and
the part which formed the back when used with cove plates now forms the front,
and vice-versa. The projecting flanges which when used with cove-plates formed
the bearing for the side brickwork when reversed form a good bearing for the
brickwork built over the damper as does also the part of the frame carried over
the damper at the back.
The slides or passages for the damper at the sides are the same in both
cases.
Dated this 921 dow of N1001
HERBERT HAGUE,
Applicant.
COMPLETE SPECIFICATION.
An Improved Reversible Damper Frame.
1, HERBERT HAGUE of Brook Terrace, Belper in the County of Derby,
Modeller do hereby declare the nature of this invention and in what manner the
same is to be performed, to be particularly described and ascertained in and by
the following statement :-
The object of my invention is to provide a reversible damper frame which may
be cast in one piece, will save something like fifty per cent. of the cost of manu-
facture of the ordinary damper frame and in which the draught space is con-
siderably increased, is self contained, requires no fitting and is adapted for fixing
to cove-plates or for fixing independently in brickwork.
Referring to the accompanying sheets of drawings and to the figures and letters
of reference marked thereon:-
Figure 1. is a plan of the damper frame as used with cove-plates.

page_text: Figure 2. is a plan of same as used-when-set in brickwork.
Figure 3. is a section on line 'a'—.a.'
Figure 4. is a section on line "'-'b.'
Figures 53 and 6Aare perspective-views-shewing, my improved damper frame as
used with core plates and set in independent brickwork respectively.
A damper frame as usually made is, formed in two parts, form or cast mine in
one piece and the passage for the damper in the sides of the frame is formed by
internally projecting flanges about half the length of the side, at diagonally
opposite sides, thus each side has an upper and lower flange one above and 'one
below. the damper, the ends thereof being tapered off so as to guide the damper
into its position..
When, used in connection with cove-plates H the bed A of the damper frame
that is, to say the part which rests on the brickwork at the sides is made to
project outwards and the brickwork is built upon this, the upper part is left open
at the, front, and at the back the frame is carried over the damper as.at B to
cut off the, draught,, and the lower part below, the damper is left open, the
damper itself I resting upon, the lower flanges..C and D and the front part G
and, being covered at the sides by the upper flanges E. and F. (see Figures. 1
and 3).
In reversing the damper frame to be built into independent brickwork Jit
is turned over and, the part B which formed the back when used with cove-plates. H
now forms, the front and vice-versa and the, inwardly projecting flanges. C and D
which when used with cove-plates formed the bearing for the side brickwork, now
form a good bearing for the brickwork built over the damper I as does also the
part G. of, the, frame. carried over the damper I. at the .back (see Figures 2 and 4
5 and 6).
The slides or passages for the damper at the sides are the same, in both cases.
In the Figures 5 and 6,,the positions of the damper frame and damper are
indicated by dotted lines behind, the cove-plate.. and, independent, brickwork
respectively, and the damper is shewn partly open.
Having now particularly 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 :-
Casting a reversible damper frame in one piece substantially as herein described
and as illustrated by the accompanying sheet of drawings..
Dated this 2nd day of April 1892.
W SWINDELL,
Agent for the Applicant.