Improvements in or connected with Covers or Means for Closing Orifices in Drain Pipes and other like Passages or Receptacles.
Year: 1889

page_text: Date of Application, 23rd Apr., 1889
Complete Specification Left, 20th Jan., 1890-Accepted, 1st Mar., 1890
PROVISIONAL SPECIFICATION.
Improvements in or connected with Covers or Means for Closing
Orifices in Drain Pipes and other like Passages or Receptacles.
We JOSEPH AMÉDÉE JACQUEMIN and EMILE SEGRESTAN both of 9 Rue St. Paul
Paris in the Republic of France Manufacturers of Sanitary apparatus do hereby
declare the nature of this Invention to be as follows:-
This Invention relates to the construction of covers and fittings for closing orifices
in drain pipes and other like passages or receptacles such for example as the orifices
provided in metal or earthenware siphons and drain pipes for the purpose of inspecting
or clearing the same and it has for its object enabling the covers to be removed and
replaced quickly and with ease and without the employment of screws and other parts
liable to be damaged by corrosion or otherwise uncertain and irregular in their
action.
The orifice is fitted with a ring or mouthpiece cemented or otherwise attached to the
pipe and provided internally with a flange or shoulder forming a soating for the cover
and preferably covered by ring or washer of india rubber so as to form a tight joint
with the edge of the cover.
The outer edge of the ring or mouthpiece is preferably provided with semicircular
or other notches or recesses in order to afford a better holdfast for the cement by
which the mouthpiece is attached to the pipe and is also provided on opposite sides
with two perforated lugs for the reception of an excentric bolt hereinafter described.
The cover is in the form of a disc or plate slightly concave or hollow on the interior
and provided at or near its edge with a bead or projection which fits tightly against
or beds on the rubber packing ring herein before referred to. On its outer side the
cap or cover presents a central projection which forms a bearing for the excentric bolt
hereinbefore referred to. This bolt is formed by a rod bent so as to form a loop near
to one end of the bolt the extremities being in the same straight line and fitting into
the lugs on the mouthpiece whilst the central part bears against the projection on the
cover.
The cover being placed in position is secured by inserting the ends of the bolt into
the lugs on the mouth piece and giving the bolt a partial revolution by means of the
loop acting as a lever.
The central part of the bolt being slightly sprung out of line with or eccentric
to the ends this movement has the effect of pressing the cover tightly against the
rubber seating and the bolt may then be retained in position if necessary by a
padlock or other fastening combined with a loop or catch on the cover. In order to
release the cover the eccentric bolt is simply rotated in the opposite direction and
disengaged from the lugs on the mouthpiece.
The mouthpiece may be arranged so as to expand on the outer side of the orifice in
order to avoid contracting the area of the latter with the internal flange or shoulder.
Dated this 23rd day of Anril 1889

page_text: COMPLETE SPECIFICATION.
Improvements in or connected with Covers or Means for Closing
Orifices in Drain Pipes and other like Passages or Receptacles.
We JOSEPH AMÉDÉE JACQUEMIN and EMILE SEGRESTAN both of 9 Rue St. Paul
Paris in the Republic of France Manufacturers of Sanitary apparatus 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 construction of covers and fittings for closing orifices
in drain pipes and other like passages or receptacles such for example as the orifices
provided in metal or earthenware siphons and drain pipes for the purpose of inspecting
or clearing the same and it has for its object enabling the covers to be removed and
replaced quickly and with ease and without the employment of screws and other parts
liable to be damaged by corrosion or otherwise uncertain and irregular in their
action.
And in order that our said Invention may be fully understood we shall now proceed
more particularly to describe the same and for that purpose shall refer to the several
Figures on the annexed sheet of drawings the same letiers of reference indicating
corresponding parts in all the figures.
Figure of the accompanying drawings illustrates in transverse section an
example of a fitting for closing orifices constructed according to our Invention.
Figure 2 represents the same fitting in front elevation or plan. "Figure 3 illustrates
a modified arrangement hereinafter described.
The apparatus illustrated in Figures 1 and 2 is composed essentially of four parts
namely:
1. A ring or mouthpiece A. cemented or otherwise attached to the orifice in the
pipe for example (the latter not being shown in the drawing) and provided internally
with a flange or shoulder a' forming a seating for the cover. This mouthpiece is
provided externally with semi-circular grooves g running in a vertical direction and
with two perforated lugs or eyes a at the outer end.
2. A ring or washer c of indiarubber placed on the flange a¹ so as to form a tight
joint with the edge of the cover.
3. A cover B slightly dished and presenting on its inner side an annular surface or
flange b which compresses the india rubber packing ring c and presenting a projection b
formed in casting at the centre of its outer surface.
4. A bolt D with two stems or shanks of unequal length, the longer shank being
slightly bent or excentric. These two shanks are connected by a loop d which acts
as a lever for rotating the bolt in the eyes a so as to act on the cover B by exerting
the required pressure on the projection or head 6 cast in one with the said cover.
The cover is further provided with a loop or eye 62 which acts as a handle for
lifting or holding the cover and also enables it to be secured by connecting the loop d
of the bolt to the eye 62 on the cover by means of a padlock.
This apparatus is intended for orifices or openings through which access is obtained
to the interior of pipes and may be placed on the hand holes of cast iron or earthen-
ware traps for example. It is cemented to the pipe or trap in the same way as an
ordinary section or length of pipe and the perfect adhesion of the cement is ensured
by means of the grooves g in the outer surface of the mouth piece or cylinder A.
The hermetic closing of the opening is obtained by means of the bolt D the long
shank or arm of which is slightly sprung out of line with or excentric to the ends
so that when the loop or lever d is turned down so as to lie against the cover the
central part of the bolt acting on the projection 6 exerts a powerful pressure on
the cover and compresses the rubber packing ring c placed between the edge b' of
the cover and the flange or shoulder a¹ in the cylindrical ring or mouth piece A.
To remove the bolt it is simply necessary to turn up the loop d and when in this
position that is to say when standing at right angles to the cover the excentric part

page_text: of the bolt ceases to press on the cover and the bolt can then be readily disengaged
from the eyes a.
The bolt being thus freed the cover B can be removed in order to
inspect or clean out the interior of the pipe or trap for example.
This apparatus obviates the disadvantages attending the use of screws which are
liable to rust and get out of order. Moreover there is no risk of cracking or breaking
the cover by exorting excessive pressure with screws as the pressure is limited to that
obtained by the degree of excentricity of the bolt.
The modification illustrated in figure 3 which is constructed on the same principles
as that herein before described is intended for small pipes and does not cause any
contraction of their internal diameter. The sole difference between this type and that
illustrated in Figures 1 and 2 is that the flange or shoulder a¹ is situated outside the
internal diameter of the inner end of the cylinder or mouthpiece A.
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 :-
1. The stopper or apparatus formed by the combination of the mouthpiece A.
constructed with an internal flange al and eyes or perforated lugs a with the cover B
having a bearing surface 6' and a head or projection band with the excentric bolt D
substantially as herein before described and illustrated in Figures 1 and 2 of the
accompanying drawings.
2. The modification in which the shoulder a¹ is arranged outside or beyond the
internal diameter of the opening substantially as hereinbefore described with reference
to figure 3 of the accompanying drawings.
3. The arrangements and combinations of parts constituting the improved means
for closing orifices in drain pipes or other like passages or receptacles substantially as
hereinbefore described.
Dated this 20th day of January 1800
J. H. JOHNSON & Co.,
Agents.