Improvements in Apparatus for Sweeping Domestic Chimneys.
Year: 1897

page_text: Date of Application, 8th Jan., 1897-Accepted, 13th Feb., 1897
COMPLETE SPECIFICATION.
Improvements in Apparatus for Sweeping Domestic Chimneys.
We, THOMAS FLYNN, of 60 Avenue Road, Springburn, Engineer, ROBERT
BELL, M.D., of 29 Lynedoch Street, Physician, both in the City of Glasgow, and
ROBERT ALEXANDER CRUIKSHANK, of Ardbeg, Kilmun, in the County of
Argyll, Gentleman, 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 apparatus of the kind for use in sweeping domestic
chimneys and it has for its object to improve the construction of the same.
The invention is illustrated by the accompanying drawings,
Figure 1 being an elevation showing the apparatus fitted within a chimney,
Figure 2 a plan of the frame of the apparatus and
Figure 3 a plan of the brush.
The improved apparatus consists of a split ring A to which are riveted four or
more guide pieces a which enter the chimney can B the upper ends of the guide
pieces a being turned over the split ring A at right angles to form stops a¹ which
rest upon the upper edge of the chimney B, the split ring A admitting of the
apparatus being fitted upon chimneys of different diameters. Two of the guide
pieces a are carried some distance higher than the split ring A and a cross shaft a²
extends and is fixed between then, on which is centred a small sprocket wheel or
pulley a over which is passed a chain C or wire rope one end of which is attached
to the upper side of a cylindrical or other shaped brush D by means of a spring
hook E or otherwise, the other end of the chain C being attached to the underside
of the brush in a similar manner, the return end of the chain passing through an
orifice d in the body of the brush D. When the apparatus is to be used the frame
of the apparatus together with the chain and brush D is passed within the chimney
until the stops a' rest upon the lip of the chimney B, the brush D being raised and
lowered by means of the chain C passing over the pulley a³ on the frame, to sweep
the chimney.
The frame work of the apparatus may if desired be made a fixture so that
tenants may sweep their own chimneys, in which case the chain would hang
permanently in the chimney, and the brush be attached at the required time. In
the case of a row of chimneys the frame of the apparatus may be constructed so
as to carry all the pulleys or sprocket wheels on one shaft.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
Apparatus for sweeping domestic chimneys consisting of a frame composed of a
split ring to which are secured guide pieces which have their upper ends turned
over to serve as supports and a sprocket wheel or pulley centred on a shaft carried
between two of the guide pieces, in combination with a cylindrical or other shaped
brush to the upper and lower sides of which the pulley chain is attached, an

page_text: orifice being provided in the body of the brush to allow of the passage of the
return chain.
Dated this 7th day of January 1897.
WALLACE FAIRWEATHER,
Of the Firm of Cruikshank & Fairweather,
Chartered Patent Agents,
62 St Vincent Street, Glasgow, Agent for the Applicants.