Improvements in Milking Apparatus.
Year: 1891

page_text: Date of Application, 10th June, 1891
Complete Specification Left, 8th Mar.. 1892-Accepted, 16th Apr., 1892
PROVISIONAL SPECIFICATION.
Improvements in Milking Apparatus.
I, WILLIAM MURCHLAND, of 13 Bank Street, Kilmarnock, in the County of
Ayr, North Britain, Plumber, do hereby declare the nature of this invention to be
as follows, that is to say :-
My said invention has for its object to render more completely efficacious and
satisfactory, apparatus for milking cows by means of suction, and preferably such
as is described in my Patent Specification No. 15210, of 1889, although my present
improvements are advantageously applicable with other modifications of suction
milking apparatus.
My present invention relates more particularly to the kind of teat cup employed
and has for its object to prevent a collapsing or choking of the teats when a cow's
udder has become partly emptied, and probably due to the suction drawing the
teats too far into the cups.
In carrying out my invention the top of the teat cup is made as before with a
central aperture into which the teat is to be inserted, a tube extending inwards
from the central aperture to a less or greater distance and being of metal or rubber
or other flexible material or partly of metal and partly of flexible material and
either perforated or unperforated. The top of the cup is made with an annular
depression or shallow channel encircling the central aperture and fine holes are
made in the bottom of this annular depression. The suction acting inside of the
cup also acts in the annular depression on the part of the cow's udder round about
the teat and by making it adhere to the top of the cup prevents it from being
drawn towards the central aperture so that the crowding of the teat and udder at
the central aperture does not take place.
Dated this Ninth day of June 1891.
EDMUND MUNI,
Applicant's Agent.
COMPLETE SPECIFICATION.
Improvements in Milking Apparatus.
1, WILLIAM MURCHLAND, of 13, Bank Street, Kilmarnock, in the County of
Ayr, North Britain, Plumber, 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, that is to say:-
My said invention has for its object to render more completely efficacious and
satisfactory apparatus for milking cows by means of suction, and preferably such
as is described in my Patent Specification No. 15210 of 1889 although my present
improvements are advantageously applicable with other modifications of suction
milking apparatus.
My present invention relates more particularly to the kind of teat cup employed,
and has for its object to prevent a collapsing or choking of the teats, when a cow's
udder has become partly emptied, and probably due to the suction drawing the
teats too far into the cups.
In carrying out my invention I have a teat cup made as before with a central
aperture to receive the teat, and having a tube of flexible material extending
inwards from the said central aperture to a less or greater distance.
In the top
of the cup, and encircling the central aperture, there is an annular depression, or
shallow channel, in the bottom of which fine holes are made, in order that the

page_text: and so prevent the teat from collapsing, or being unduly drawn into the central
aperture.
And in order that my said invention and the manner of performing the same may
be properly understood, I hereunto append a sheet of explanatory drawings, to be
hereinafter referred to, and showing an example of my improved teat cup.
Figure, 1, of the drawings is a. plau,
Figure, an elevation,
Figure 3, a plan with the flexible tube removed, and
Figure, 4, an elevation partly in section.
Figure, 5, is a horizontal section, and Figure, 6, a vertical section of the flexible
tube.
In these drawings the same reference letters are used to mark the same or like
parts wherever they are repeated.
As shown in the drawings the top, A, of the teat cup, B, is made with a central
aperture, C, into which the teat is to be inserted, a tube, D, extending inwards
from the central aperture and which is made of rubber and is perforated. This
flexible inner tube, D, may have its upper end terminating at the edge of the
central aperture, C, of the metal part of the cup: I however find it advantageous
to make the upper part of the tube, D, as shown in Figures 5, and 6, that is with
a hollow annular enlargement, E, which forms a shoulder by means of which the
tube is held and supported in the cup. At the top of the enlargement, E, there is
formed on it a diaphragm or lip, F, of tapering thickness extending inwards and
presenting a soft elastic membrane for contact with the cow's udder. The top, A,
of the metal cup, B, is made with an annular depression or shallow channel, G,
around the central aperture, and holes are formed through the bottom of this
channel into the interior of the cup, B, in order that the suction acting within the
cup may also operate in the channel, G. The channel, G, is covered by the
shoulder or enlargement, E, of the rubber tube, D, but holes are formed through
the bottom of the enlargement in order that the suction may operate within the
enlargement. When the apparatus is applied to the cow's teat the lip or
diaphragm, F, becomes turned inwards, and an enclosed annular space becomes
formed between the outer part of the enlargement, E, and the teat in which space
the suction acts upon the part of the udder immediately round the teat so as to
prevent that part from being drawn into the aperture, C.
The cup, B, has fixed to it a stopcock, H, with a nozzle, J, for connection by
means of flexible tubing to the milk receiver and suction apparatus.
The cup, B, may be made of any suitable rigid material. The inner tube, D, is
preferably made of rubber or other suitable flexible material; or it may be made
partly rigid and partly flexible. The top lip or diaphragm, F, may be made flat
as shown or of a curved or corrugated form; the central aperture of the diaphragm
as well as the inner aperture, C, and the tube, D, being made of sizes to suit the
class of animal to which the apparatus is to be applied.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is-
In apparatus for milking animals by means of suction the application and use of
teat cups constructed and operating substantially in the improved manner herein-
before described and as shown in the accompanying drawings.
Dated this Seventh day of March 1892.
EDMUND HUNT,.
Applicant's Agent.