Year: 1887

page_text: Date of Application, 15th Dec., 1887
Complete Specification Left, 17th Sept., 1888
Complete Specification Accepted, 19th Oct., 1888
1. HARRIET AUGUSTA HANCOCK, of 29, "The Parade," Uxbridge Road, Acton,
Middlesex, Gentlewoman, do hereby declare the nature of this invention to be as
follows:
This invention relates to the employment of one or a series of fall down or sliding
leaves or plates to work in notched or recessed rabbetted side frames attachable to an
open or domestic stove or fireplace, so that the leaf or any number of them can be
lowered and be temporarilly fixed in position to induce up draught in the chimney and
prevent down draught.
Dated this 15th day of December 1887.

page_text: Means and Appliances for Curing Smoky Chimnies.
I, HARRIET AUGUSTA HANCOCK, of 29 "The Parade" Uxbridge Road, Acton,
Middlesex, Gentlewoman, 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 :
This invention relates to the employment of one or a series of fall down or sliding
leaves or plates to work in notched or recessed rabbetted side frames attachable to an
open or domestic stove or fire place, so that the leaf or any number of them can be
lowered and he temporarilly fixed in position to induce updraught in the chimney and
prevent down draught.
My invention will be understood by reference to the annexed drawings in which
at Figure 1 show an elevation of a domestic fire place with side pieces A A notched
for the reception of plates B which in number correspond to the notches or rabbets
in the side frames. In the view, four plates B, B, are shown all resting on the top
notch or rabbet of the side frame A so that they can, one at the time, be drawn
outwards by the lip pieces and lowered into the notches A A as desired.
If the outer one be lowered into the bottom notch the next one directly behind it
could be lowered to rest in the second notch and so on with the third, so that nearly
the whole of the fire place would be enclosed to induce updraught to the desired
extent.
The back of the lower plate is provided with pins or hooks D D, see Figure 2,
which when said plate is lifted engage in notches E, E, of the next upper plate and
again with the one above it, so that all the plates may be lifted in succession in
the act of lifting the bottom plate until they all lodge in. the top notch of the
frame A, A.
The lower plates are curled top and bottom so that they hook into one another
when lowered and make the meeting seams intact.
Instead of lifting the plates B, B, by hand as thus described the lower one may be
suspended by chains F, F, as at Figure 3 which run over pullies and carry balance
weights G, so that as the bottom or front plate is raised, the weights descend within
the framing and as the bottom plate ascends, the hooks D, D), will engage in the
notches of the upper plate and so present a full opening of the fire place.
Figure 4 shows a modification in which the several plates B B are supported and
guided by rods H H each plate having its own rod which they grip sufficiently tight
to hold themselves at any position to which the plates may be drawn down to.
The ends of the plates B B and their rods H H may be arranged behind the
jambs II and when lifted to their full height may be all stowed away behind the breast
piece J.
The arrangement according to Figures 3 and 4 are permanent fixtures but according
to Figure 1, the frame with the plates is affixable to the front of an existing stove,
but they may be, as at Figures 3 and 4, part of the structure.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and the manner in which the same is to be performed I declare that what I
claim is:
The rabbetted or recessed side frames A A, movable plates B B affixable in or to an
ordinary fire place or domestic stove, also the modifications by which said plates B B
supported and retained in the desired position as shown at Figures 3 and 4, and as
described for the purposes set forth.
Dated LOIS 19th day of September 1800.
H. GARDNER,
166, Fleet Street, London,
Agent for the said H. A. Hancock.