Year: 1893

page_text: Date of Application, 6th June, 1893-Accepted, 8th July, 1893
The object of the invention is mainly to provide a mechanism for moving the said
lid automatically and in conjunction with the opening and closing of the top flap or
cover.
In the accompanying drawings
Figure 1 is a vertical section through the seat and pan, showing the mechanism
in its normal position.
Figure 2 is a similar view but with the flap or cover partly raised.
Figure 3 is a plan of Figure 1.
Figure 4 is an elevation of the mechanism in the position in which it is shown in
Figure 2, and
Figure 5 is a detail of the connection between the pivot of the lid and the lever
for moving it.
The upper rim of the pan a is provided with a grooved crown 6 which instead of
being attached to the pan as shown in the drawings may when desired, be made in
one with it. The groove filled with water or disinfecting liquid, is intended to
receive the downwardly projecting rim or flange of the lid c. The rim may be
made very thin relatively to the width of the groove so as to reduce to a minimum
the consumption of water; but it may sometimes be advantageous to make the rim
of the lid so as to nearly fit the groove and to eject each time a certain quantity of
the liquid from the groove so as to rinse the interior of the pan.
The groove is
supplied with the liquid from a pipe d in connection with a ball-valve e of any
known construction for automatically regulating the water level.
The lid c is attached to an arm frigidly connected to a vertical shaft g. h is the
ordinary flap hinged at i and serving to close the wooden seat at the same time
causing the opening and the closing of the lid e in the following manner;-
One of the hinge pins i carries a lever arm k which passing through a slot in
the wooden seat extends downwards and engages with the slot of a bar or arm
pivotted or swivelled in the lever m pivotted on the shaft
9.
The lever m operates on a collar a secured on shaft g in such a manner as to
allow said lever to be moved independently of the shaft g within certain limits, but
beyond which limits it moves the collar and shaft with it.
To this end the collar n is provided with a recess n¹ Fig. 5 in which works a
pin m² fixed in or to the lever m so as to allow the latter to move independently of
the shaft g until the pin m' abuts against the end of the recess.
The lever m at its
underside is provided with inclined surfaces corresponding with similar inclined
surfaces o located on the frame o these and the pin m' and recess n' being arranged
in such a manner that when the lever m slides over the inclined surfaces o' the
pin m³ moves independently of the collar n in the recess n' thereof.
The effect obtained by this arrangement is that when the flap h is being raised it
causes the lever m in consequence of the movement imparted to it through the
medium of the lever arm k engaging with the slotted bar to slide over the inclined
D

page_text: surfaces o¹ and lift the lid c by pressing against the collar n but without turning the
shaft g
The lid is thus lifted out of the groove and meanwhile the pin m' has reached
the end of the recess and the further movement of the lever m causes the shaft g to
turn with it thereby moving the lid c sidewise, the reverse being the case when
closing down the flap.
The lid c is still further guided by a pin p engaging with a hole in the frame and
otherwise sliding over the upper surface of the latter.
Having now particularly described and ascertained the nature of the said inven-
tion as communicated to me by my foreign correspondent, and in what manner the
same is to be performed, I declare that what I claim is ;-
-
1. In a liquid seal for closet pans the combination with a flanged lid c dipping
into a groove at the top of the pan and pivotted on a vertical shaft of a lever arm k
connected with the seat-cover h and engaging with a lever such as m having inde-
pendent movement on the vertical shaft between certain limits so as to lift the lid
and its shaft by means of inclined surfaces such as o' during the first part of its
movement and afterwards to cause said lid to swing in a horizontal plane sub-
stantially as described and illustrated in the accompanying drawings.
2. In a closet closing device the combination with the seat-cover of a lever
arm k slotted arm such as swivelled in a lever such as m shaft g on which the
lever mis pivotted notched collar and cover such as n n' and c both rigidly
connected with the shaft g and inclined surfaces such as o' substantially as described
and illustrated in the accompanying drawings.
3. A closet closing device consisting of a liquid containing groove or seal at the
upper edge of the pan and a flanged lid or cover fitting into it which automatically
at each raising of the seat cover is first raised out of and then swung aside from the
liquid seal substantially as described.
Dated this 6th day of June 1893
W. P. THOMPSON & BOULT,
Of London, Liverpool, Manchester, and Nottingham,
Agents for the Applicant.