Improvements in Apparatus for Raising Liquids.
Year: 1896

page_text: Date of Application, 11th Dec., 1896
Complete Specification Left. 7th Sept. 1897-Accepted 20th Nov. 1897
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Raising Liquids.
I, JENS ANDREAS LARSEN, of 65 Vesterbrogade, Copenhagen, in the Kingdom
of Denmark, Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in apparatus for raising liquids and is
more particularly adapted for elevating cream in dairies, the object of the inven-
tion being to provide apparatus the erection of which can be adapted to suit
varying conditions as to space to be occupied, which does not cause waste of cream
and which is also applicable to the raising of sour cream required to be conveyed
from the cream-barrels to the cooling apparatus.
According to my invention I provide an air-pump consisting of a cylinder
and
a piston. The cylinder of the pump is connected by a pipe with a
tank which can be arranged at any suitable height above, and at any suitable
distance from, the pump. A pipe leads from the tank down to a tub or other
vessel to which the cream is brought from the centrifugal machine. In con-
nection with the tank I provide two ball-valves.
The downward stroke of the piston in the cylinder of the pump will form a
partial vacuum in the said cylinder and also, by means of the connecting pipe,
in the tank whereby the cream is caused to flow up and partly fill the tank.
Shortly before the piston reaches the end of its down stroke air is admitted into
the cylinder of the pump either through perforations in the said cylinder or by
means of a valve actuated by suitable mechanism. The cream contained in the
tank will then, during the return stroke of the piston, flow from the tank. The.
ball valves control the flow of the cream into and from the tank.
In order to avoid compressing the air in the tank which would agitate the cream
I provide the tank with a valve which opens under a slight pressure so that the
cream can flow out quietly under the action of its own weight.
Dated the 11th day of December 1896
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Raising Liquids.
I, JENS ANDREAS LARSEN, of 65 Vesterbrogade, Copenhagen, in the Kingdom
of Denmark, Engineer, do hereby declare the nature of this invention and in
[Price 8d1

page_text: what manner the same is to be performed, to be particularly described and aseer-
tained in and by the following statement:-
This invention relates to improvements in apparatus for raising liquids and is
more particularly adapted for elevating cream in dairies, the object of the inven-
tion being to provide apparatus the erection of which can be adapted to suit
varying conditions as to space to be occupied, which does not cause waste of cream
and which is also applicable to the raising of sour cream required to be conveyed
from the cream-barrels to the cooling apparatus.
In the accompanying drawing I have shewn in vertical section apparatus for
raising liquids constructed according to my invention.
According to the invention I provide an air-pump consisting of a cylinder a
and a piston b. The cylinder a of the pump is connected by a pipe c with a
tank or receptacle d which can be arranged at any suitable height above, and at
any suitable distance from the pump. A pipe e leads from the tank d down to
a tub or other vessel f to which the cream is brought from the centrifugal machine.
The tank is fitted with two ball-valves g, i of ordinary construction.
The downward stroke of the piston b in the cylinder of the pump will form a
partial vacuum in the said cylinder and also, by means of the connecting pipe c,
in the tank d whereby the cream is caused to flow up and partly fill the said tank.
Shortly before the piston breaches the end of its down stroke air is admitted
into the cylinder a cither through perforations in the said cylinder or by means
of a valve actuated by suitable mechanism. The cream contained in the tank
will then, during the return stroke of the piston, flow from the tank. The ball
valves y and i control the flow of the cream into and from the tank d.
In order to avoid compressing the air in the tank which would agitate the cream
I provide the said tank with a valve which opens under a slight pressure so
that the cream can flow out quietly under the action of its own weight.
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. In apparatus for raising liquids the described arrangement whereby air is
admitted to the pump cylinder at about the end of the suction stroke either through
perforations in the cylinder or through the medium of a suitably controlled valve,
the said air escaping again during the compression stroke through a lightly
weighted valve, substantially as, and for the purpose hereinbefore described.
2. The improved apparatus for raising liquids hereinbefore described and illus
.trated in the accompanying drawing.
1th 7th day of September 1897.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.