An Improvement in the Construction of Gratings for Floors, Footways, and like Surfaces.
Year: 1895

page_text: Date of Application, 2nd Aug., 1895
Complete Specification Left, 1st May, 1896-Accepted, 6th June, 1896
PROVISIONAL SPECIFICATION.
An Improvement in the Construction of Gratings for Floors,
Footways, and like Surfaces.
I ERNEST WILLIAM FRASER of Steam Boiler Works Bromley by Bow in
the County of Middlesex Engineer do hereby declare the nature of this invention
to be as follows:-
-
The object of my invention is to render metal and other gratings used for heating
and ventilating or other purposes, covering open spaces in floors footways or like
surfaces noisless when in contact with the tread of feet or other substances which
would produce sound and also to decrease the danger of persons slipping when
treading upon the same.
My invention is particularly applicable for use in churches and other buildings
where quietude is essential.
To fulfill the object of my invention I use a metal grating or frame honeycombed
with square or other formed holes or openings. I insert in a substantial manner
square or other formed blocks made of wood, pulp, or some other sound preventing
material or composition the air having free passage through the remaining holes or
openings.
The upper surface of these blocks when fixed in position will essentially project
a sufficient distance above the parts of the frame surrounding them respectively.
thereby preventing the grating or frame from contact with articles or substances
placed on or passing over it thus minimising sound and decreasing the danger to
persons slipping. upon the smooth surfaces of the grating.
Dated this 2nd day of August 1895.
COMPLETE SPECIFICATION.
An Improvement in the Construction of Gratings for Floors,
Footways, and like Surfaces.
I ERNEST WILLIAM FRASER of Steam Boiler Works Bromley by Bow in the
County of Middlesex Engineer 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 render metal and other gratings used in heating
ventilating or other purposes for covering open spaces in Hoors footways or like
surfaces, noisless when in contact with the tread of feet or other substances which
would produce sound, and also to decrease the danger of persons slipping when
treading upon the same, yet preserving the free passage of air or light through
the said grating.
My invention is particularly applicable for use in churches and other buildings
where quietude is essential.
To fulfill the object of my invention I cast a metal grating or frame honeycombed
with holes or openings and having a projecting ridge or flange at the bottom portion
[Price 8d.

page_text: of such holes or openings. These holes, or openings I make tapered or wedge
shaped tapering towards the said projecting ridge at the base. In these holes or
openings I insert blocks having a smooth yet not slippery surface made of wood
pulp or some other non slipping, and sound preventing material or substance
alternately or otherwise leaving the remaining holes or openings free for the passage
of air. I make these blocks tapered or wedge shaped in form to correspond with
the holes openings or sockets for which they are intended slightly larger in depth
and longer in elevation than the said holes or openings. They are then forced or
driven into the said holes or openings by any convenient means or apparatus; the
top surface of the said blocks respectively will then essentially project a sufficient
distance above the metal grating or frame from contact with the tread of feet or
other substances placed upon or passing over it and also owing to the remaining
spaces left open preserving the free passage of air through the grating as
aforesaid.
Fig. 1 shows a plan of a portion of the grating complete a is the frame or grating,
the blocks, c the air spaces or openings and d the flange or ridge herein before
referred to.
Fig. 2 shows a sectional elevation of a portion of the grating complete taken
through A B Fig. 1.
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
A grating for floors and like surfaces having tapering holes or openings filled
alternately or otherwise with blocks of a like shape of non-sound producing
substance leaving spaces for the passage of air or light having the advantages and
operating substantially as hereinbefore set forth.
Dated the 1st day of May 1900
ERNEST W. FRASER,
Applicant.