Improvements in Cans and Lids to Vessels for Carrying Milk or other Fluids, Preventing Waste and Providing Ventilation.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Cans and Lids to Vessels for Carrying Milk or
other Fluids, Preventing Waste and Providing Ventilation.
CHARLES ALBERT PERCIVAL, of Chapel Street, Salford, Manchester, in the County of
Lancashire, Tin Plate Worker, do hereby declare the nature of this invention to be as
follows:-
The object of my invention is to provide a means of preventing the loss of milk or
other fluids through the overturning of cans, or from other such accidents as may occur
in transit, to accomplish the first part of my invention viz.: waste preventing, I place
round the inside of can or vessel at suitable distance from the top or mouth, a metal
ring of suitable section preferably square, & soldered to the can to form a ridge, on.
the rim of inner lid I place a washer of india rubber or any suitable material, the lid.
or cover is formed with suitable edge which holds the washer as against a shoulder,
when the lid is placed in the mouth of the can, suitable means are provided for com-
pressing the lid to intimate contact with the washer or seating between it and the
ridge of suitable section previously referred to.
To accomplish the second part of my invention viz.: ventilation I employ an
automatic arrangement of suitable valve or valves fixed to the top of lid, the proper
ventilation being accomplished by placing a hollow cone or thimble open at both ends,
the bottom or larger diameter soldered over the aperture provided in the lid for-ven-
tilation. Under the cone or thimble a suitable wire cage is provided, which cage carries a
ball of any suitable material & diameter, to allow the free passage of air when the can
or vessel is in its normal position, if the can should be.overturned the ball leaves the
cage & runs into the cone or thimble & effectually stops all egress of fluid, when the
can or vessel is restored to its normal position the ball returns to the cage & ventilation
is again established, I use one or more automatic ventilators where needed by apply
ing any suitable valve arrangement which will accomplish my purpose.
Dated this 30th day of January 1897.
Improvements in Cans and Lids to Vessels for Carrying Milk or
other Fluids, Preventing Waste and Providing Ventilation.
CHARLES ALBERT PERCIVAL, Bury Street, Salford, late of Chapel Street, Salford,
Manchester, in the County of Lancashire, Tin Plate Worker, 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:-
The object of my invention is to provide a means of preventing the loss of milk

page_text: or other fluids through the overturning of cans, or from other such accidents as may
occur in transit, to accomplish the first viz.: waste preventing,
place round the
inside of can or vessel at suitable distance from the top or mouth, a metal ring of suit-
able section, preferably square, and soldered to can to form a ridge. On the rim of
inner lid I place a washer of india rubber or any suitable material.
The lid or cover
is formed with suitable edge which holds the rubber washer as against a shoulder.
when the lid is placed in the mouth of the can, suitable means are provided for com-
pressing the lid to intimate contact with the washer or seating between it and the
ridge of suitable section previously referred, to.
To accomplish the second part of my invention viz. ventilation, I employ an
automatic arrangement of suitable valve or valves fixed to the top of inner lid, the
proper ventilation being accomplished by placing a hollow cone or thimble open at
both the bottom or larger diameter soldered over the aperture provided in the
lid for ventilation, under the cone or thimble a suitable wire cage is provided which
cage carries a ball of suitable material, & diameter to allow the free passage of air
when the can or vessel is in its normal position, if the can should be overturned the
ball leaves the cage & runs into the cone or thimble & effectually stops all egress of
fluid; when the can or vessel is restored to its normal position the ball returns to the
cage & ventilation is again established.
I use one or more automatic ventilators where needed by applying any suitable
valve arrangement which will accomplish my purpose.
The means by which I carry out my objects are shewn in the following drawings, a,
represents the ridg of square section forming the ridge b, is the washer of rubber or
suitable material c, is top of inner lid d, outer lid used to compress b, between c,
and a, compression being accomplished by hinge & hasp, e represents the hollow cone
or thimble f, is the ball and g the cage, h shews position of ball when can or vessel is
overturned, i j k l are airholes in outer lid d.
Having now particularly described and ascertained nature of my said
invention, & in what manner the same is to be performed I declare that what I
claim is:
The combination substantially as described