An Improved Valve, particularly applicable for Pneumatic Tyres and other Inflatable Articles.
Year: 1898

page_text: Date of Application, 12th Apr., 1898
Complete Specification Left, 10th Jan., 1899-Accepted, 11th Feb., 1899
IDIONAL DIMITIVATION.
An Improved Valve, particularly applicable for Pneumatic Tyres and
other Inflatable Articles.
I, WILLIAM OLIVER, of 69, York Road, Lambeth, in the County of London,
Greengrocer, do hereby declare the nature of this invention to be as follows:-
This invention relates to a very simple and efficient valve particularly applicable
for pneumatic tyres and other articles requiring a valve of a similar character.
According to this invention I form a pocket of india rubber or other suitable
material having an inlet say at the top. In the side or sides of this pocket I cut
a slit or slits and I cement a piece or pieces of rubber or other suitable material
on to the side or sides of the said pocket in such a way as to cover the slits afore-
said, but leaving passage for the outlet of air.
Dated this 12th day of April 1898.
BROWNE & Co.,
Agents for the Applicant, 9, Warwick Court, Gray's Inn, London, W.C.
An Improved Valve, particularly applicable for Pneumatic Tyres and
other Inflatable Articles.
I, WILLIAM OLIVER, of 69, York Road, Lambeth, in the County of London,
Greengrocer, 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 a very simple and efficient valve particularly applicable
for pneumatic tyres and other articles requiring a valve of a similar character.
According to this invention I form a pocket of india rubber or other suitable
material having an inlet say at the top. In the side or sides of this pocket I cut
a slit or slits and I cement a piece or pieces of rubber or other suitable material
on to the side or sides of the said pocket in such a way as to cover the slits afore-
said, but leaving passage for the outlet of air.
And in order that my said invention may be better understood, I will now
proceed to describe the same with reference to the accompanying sheet of drawings,
in which Fig. 1 shows elevation of valve applicable for the inflation of pneumatic
tyres and for other analogous purposes: and Fig. 2 is an elevation of the same
valve, but showing the opening: Fig. 3 is an elevation, Fig. 4 a side view and
Fig. 5 a plan of the valve adapted for use in a pump.
The same letters of reference denote the same parts in all the views.

page_text: C
a, a show two flat pieces of rubber cemented together at the side and bottom edges
marked b (forming a pocket). In the valve shown at Figs. 3, 4 and 5, the top
edges are not cemented together: in these views of shows a flange by means of which
the valve is attached to a pump. In Figs. 1 and 2, the top edges of pieces a, a are
cemented at XX only, so as to leave an opening into which the tube c is cemented.
In each of the pieces a a I cut a slit d, and this slit I cover over by means of a
piece of rubber or other suitable material e, which latter is cemented round three
of its edges as shown by dotted lines at Figs. 1 and 3. At Fig. 2 the flap e is turned
back in order to show the slit d. It is obvious that the piece e may be cemented at
bottom instead of top.
Instead of having a slit d in both pieces a, I may have a slit in only one of the
said pieces, in which case I should only require one flap e.
Instead of cementing the flaps e at three edges as shown by the dotted lines, I
may only cement them at the sides, so as to leave the top and bottom open.
The opening at the top of valve may be of any size and shape.
The action is as follows:-
The fluid passes into the valve through the tube c or opening c¹ (Fig. 5), escapes
through the slits dd under the flaps ee and out at bottom of flap where not
cemented. It will be seen that this constitutes an efficient non-return valve.
I am aware that rubber valves have heretofore been constructed of two pieces
of rubber cemented together and open at bottom for the escape of air or other
fluid, but this class of valve has been found inefficient.
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―
1. Valves constructed substantially as set forth.
2. In non-return valves, cementing the edges of two flat pieces of rubber together,
such pieces being provided with a slit or slits covered over by a Hap of rubber
or other suitable material cemented over same at two or three of their edges, sub-
stantially as set forth.'
Dated this 10th day of January
BROWNE & Co.,
Agents for the Applicant, 9, Warwick Court, Gray's Inn, London, W.C.