An Improved Gully Stopper.
Year: 1890

page_text: Date of Application, 10th July, 1890
Complete Specification Left, 10th Apr., 1891-Accepted, 16th May, 1891
PROVISIONAL SPECIFICATION.
An Improved Gully Stopper.
I, JAMES STEAD of 52A Market Street, Brighton, in the County of Sussex,
Manufacturer of Sanitary Appliances, do hereby declare the nature of this invention
to be as follows :-
My invention relates to improved means of temporarily closing the gully holes of
house drains for testing purposes. Heretofore it has been usual to close them by a
head of water contained in a pipe temporarily placed vertically above the gully and
cemented thereto to form a vertical continuation thereof. The object of my inven-
tion is to save the time and labor thereby consumed, and to this end it consists in
providing a ready means of stopping a gully hole of the ordinary square or
rectangular form. The gully stopper of my invention consists of rectangular plates
with oppositely bevelled margins adapted to compress between them and con-
sequently to outwardly expand a packing of indiarubber made preferably of circular
section with mitred joints, the plates being pressed together by a central bolt and
wing nut. By placing this contrivance in the gully hole and screwing up the nut,
the rubber packing is squeezed outwards and caused to make a tight joint between
the pair of plates and the sides of the gully which is thereby effectually stopped.
By slacking the nut the stopper may be readily removed when the test of the drain
is completed.
Dated this 9th day of July 1890.
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.
COMPLETE SPECIFICATION.
An Improved Gully Stopper.
I, JAMES STEAD, of 55 George Street, Brighton, in the County of Sussex,
Manufacturer of Sanitary Appliances, 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 :-
My invention relates to improved means of temporarily closing the gully holes of
house drains for testing purposes. Heretofore, it has been usual to close them by
a head of water contained in a pipe temporarily placed vertically above the gully
and connected thereto, to form a vertical continuation thereof.
The object of my invention is to save the time and labor thereby consumed; and
to this end it consists in an expansible gully hole stopper affording a ready means
of stopping a gully hole of the ordinary square or rectangular form.
The gully stopper of my invention is illustrated in the accompanying drawings,
forming part of this Specification; wherein
Figure 1 represents a cross-section, and Figure 2 a plan, of the improved gully
hole stopper.
Figure 3 represents a section of the same as applied in a gully hole.
It consists of two rectangular metal plates A B with oppositely bevelled
margins a band a packing of india-rubber C held between the bevelled
margins ab of the plates, the rubber packing being made preferably of circular
section. The plates A B are connected and pressed together preferably by a
central screw bolt D fixed to the one plate and passing through the other
plate upon which bears a wing nut E screwing on the bolt. This expansible

page_text: b
stopper is to be made of a form corresponding to that of the gully hole and of
dimensions such that when the nut is slackened, as in Figure 1, the stopper may
be readily inserted in the gully hole whereupon, by screwing up the nut, the
rubber packing, by reason of the oppositely bevelled form of the margins a
of the plates between which it is compressed, will be squeezed outwards and
caused to make a tight joint between the pair of plates and the sides of the
gully which is thereby effectually stopped. By slacking the nut, the stopper
may be readily removed when the test of the drain is completed.
I would observe that I do not restrict myself to a screw bolt and nut, as any
equivalent means of pressing the plates together may be employed.
The rubber packing would be made from rubber of round section cut to lengths
and bevelled to make mitre joints at the corners, said joints being united by
cementing previous to vulcanization in the ordinary way of making rubber goods of
the kind. Or the rubber packing may be moulded in one piece of the final form
desired.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is-
The herein described expansible stopper for gully holes, consisting in the com-
bination of the pair of plates having oppositely bevelled margins, the rubber
packing held between said margins, and means, substantially as described, of
pressing the plates together, for the purpose of squeezing outwards the rubber
packing, as specified.
Daviu
unis von day of pin 1091.
J. STEAD.
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.