Improvements in Fire-grates.
Year: 1891

page_text: Date of Application, 3rd Feb., 1891
Complete Specification Left, 23rd Oct., 1891-Accepted, 6th Feb., 1892
PROVISIONAL SPECIFICATION.
[Communicated from abroad by RICHARD GOLL, of Frankfort-on-the-Main,
in the Empire of Germany.]
Improvements in Fire-grates.
HENRY HARRIS LAKE of the firm of Haseltine Lake & Co., Patent Agents,
45 Southampton Buildings in the County of Middlesex, do hereby declare the nature
of this invention to be as follows:-
This invention relates to a fire-grate which is designed to prevent the coal falling
through it, and enable the cleaning to be effected, not only at certain points, but in
a general manner so that the air passing through the grate will be as equally
distributed as practicable.
This object is realized by covering the spaces of the grate through the medium
of laterally projecting lips or flanges formed on the grate bars.
By the arrangement of lateral lips or flanges the spaces will be completely
covered in the case of all grate bars having plane uninterrupted surfaces. In
grates the bars of which are formed, like racks, with regular spaces the edges
bounding the latter must likewise extend one over the other in order to preclude
the coal falling through such spaces.
The cleaning of a grate of the kind hereinbefore described can as a rule be
effected by beating or the like but should this prove insufficient it is necessary to
render the grate bars movable relatively to each other, either singly, in pairs, or
in series.
Dated this 3rd day of February 1801
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Fire-grates.
I, HENRY HARRIS LAKE, of the firm of Haseltine Lake Co., Patent
Agents, 45 Southampton Buildings, in the County of Middlesex, 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 a fire-grate, which is designed to prevent the coal
falling through it, and enable the cleaning to be effected not only at certain points,
but in a general manner, so that the air passing through the grate will be as equally
distributed as practicable.
This object is realized by covering the spaces of the grate through the medium.
of laterally projecting lips or flanges formed on the grate bars.
In the accompanying drawing I have shown how my said invention may be
conveniently and advantageously carried into practice.
Figure 1 is a transverse section of a grate having covered spaces, the grate
bars being of equal section.
Figure 2 is a similar view but with bars of different sections.
Figure 3 is a side elevation of a part of a single grate bar constructed according.
to my invention.
Figure 4 is a view of a grate bar for a step-grate in which the longitudinal
and transverse spaces are covered.

page_text: In the form or modification of my improved bars in which the said bars are
made plain in the longitudinal direction as shown in Figures 1 and 2 the spaces
between the bars are completely covered or overlapped by lips or projections
formed on the side thereof. In the modification shown in Figures 3 and 4 the bars
are formed with lateral spaces each space being overlapped by a lip or projection
formed on the bar transversely in addition to the longitudinal projections for the
purpose of preventing the coal from falling through such spaces.
The cleaning of a grate of the kind hereinbefore described can as a rule be
effected by beating or striking the same but should this prove insufficient it is
necessary to make the grate bars movable relatively to each other, either singly,
in pairs, or in series.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed as communicated to me by my
foreign correspondent, I declare that what I claim is :-
The improved fire grate bars in which the longitudinal or transverse spaces or
both are covered by the adjacent edges which extend one over the other
substantially as above described.
Dated this 02-] 1
1001
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.