Improvements in Caps and Stoppers for Bottles, Jars, and other Vessels.
Year: 1896

page_text: Date of Application, 19th Aug. 1896
Complete Specification Loft 15th May, 1897-Accepted. 24th July 1897
Improvements in Caps and Stoppers for Bottles, Jars, and other
Vessels.
ASTOR BOISSELIER, Merchant and Agent of 1 Crecchurch Lane and 86A Leadenhall
Street in the City of London do hereby declare the nature of this invention to be as
follows:-
My invention consists of an improvement in the Caps or Stoppers for bottles,
jars or otlier vessels, for which Letters Patent have been granted to me on. the
14 September 1895 (No. 22,611/94).
The object of my improvement is to facilitate the flow of any liquid contained in
a bottle or vessel fitted with my aforesaid cap.-I accomplish my object by making a
perforation in the cap and slide in such a manner that when the slide is drawn back,
the two perforations coincide, thus forming an air vent, but when slide is closed both
perforations are covered.
Deed thin Dichtoonil, dar of August 1906
COMPLETE SPECIFICATION.
Improvements in Caps and Stoppers for Bottles, Jars, and other
Vessels.
ASTOR BOISSELIER Merchant and Agent of 1 Creechurch Lane and 86A Leadenhall
Street in the City of London 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 consists of an improvement in the caps or stoppers for bottles jars or
other vessels for which Letters Patent have been granted to me on the 14 September
1895 (No. 22611/94).
The object of my improvement is to facilitate the flow of any liquid contained in a
bottle or vessel fitted with my aforesaid Cap. I accomplish my object by making a
perforation in the cap and slide in such a manner that when the slide, is drawn back,
the two perforations coincide, thus forming an air vent, but when slide is closed both
perforations are covered.
Figure is a plan drawing of my improved contrivance, with an aperture B and
two grooves C, into which fits the slide D, furnished with a small knob or projection E.
This slide D is so adjusted as to slide up and down between the two grooves Cover
aperture B, covering same when pushed down and exposing same when drawn up.
This said slide D may be kept in position and prevented from sliding out entirely by

page_text: any convenient means. For example knob E (slide D) may project both on the upper
and lower surfaces of the slide, so that the lower projection may be utilized as a check
to prevent the said slide D being withdrawn entirely from the Cap. The slide may
be checked by any other convenient means. An air vent is provided by forming a
small circular aperture in the Cap as at J, Figure 2, and a similar aperture at K, in
the slide D, Figure 2. When said slide D is fully drawn back, these two apertures J
and K coincide, as shown at J, K, Figure 1, thus forming an air vent. When slide
is closed both apertures will be covered. These caps may be made of metal or any
other suitable material, and may be attached to the mouth of vessels containing viscid
liquids by means of screw thread or any other convenient means.
The action of my contrivance is as follows: The slide D being fully drawn back, as
for example in Figure 1, a vent-hole is forined as at J, K, Figure 1, and the liquid is
allowed to pour out through aperture B by tilting the bottle or containing vessel, the
flow being greatly assisted by the said vent-hole J, K.-At any instant the flow of
liquid can be checked and cleanly cut off by closing the said slide D.
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) An improvement in the caps or stoppers of bottles or vessels containing viscid
liquids, for which Letters Patent have been granted to me on the 14th September 1895
No. 22611, said improvement consisting of an air-vent as herein before described, to
assist the flow of viscid liquids when being poured out.
(2) An air vent in the aforesaid caps constructed in such a manner as to be covered
when the cap is closed, and only exposed when the cap is opened and ready for use,
substantially as herein described and as shown in the accompanying drawings.
Original dated Twelfth day of May 1897.
Dated thie Thirteenth day of Inly 1897