Improvements in Teat Cups for Milking Machines.
Year: 1894

page_text: Date of Application, 2nd Aug., 1894
Complete Specification Left, 2nd May, 1895-Accepted, 27th July, 1895
PROVISIONAL SPECIFICATION.
Improvements in Teat Cups for Milking Machines.
I, ALEXANDER SHIELS, of 190 Bath Street, Glasgow, M.B., C.M., B.Sc., do
hereby declare the nature of this invention to be as follows:-
This invention relates to teat cups for use in connection with milking machines
and it is a further development of my prior invention No. 4558 dated 2nd March
1893.
is
The present invention has for its object to improve the construction and action of
the teat cup and to render it capable of thoroughly stripping" the cow's teats.
To enable it to perform this latter function it is necessary that the cup should
gradually and progressively collapse, from the neck downwards towards the bottom,
so as to produce an action like the hand when milking.
In this invention the inner lip of the cup is made of a gradually decreasing
diameter towards the tip and is preferably tapered, whilst the vertical grooves are
made longer than heretofore. The depth of these grooves is not the same through-
out but gradually diminishes from the neck part downwards. Lines drawn along
the bottoms of these grooves would be parallel with au axial liue drawn through
the centre of the cup.
The thickness of the walls of the cup, which is somewhat cylindrical in shape,
gradually diminishes from the maximum thickness at or about the centre to the
minimum at the neck part and the bottom.
The interior surface of the cup gradually tapers or diminishes in diameter from
the bottom to a point, preferably, a little above the centre and from this point
to the neck the surface is preferably cylindrical the interior side walls being parallel.
The exterior surface of the cup, on the other hand, is perfectly cylindrical from the
bottom to the centre or to a point preferably a little below the centre, and from
this point it gradually diminishes in diameter up to the neck.
The construction is such that, at each pulsation, as the vacuum gradually increases
from the minimum to the maximumn, the walls of the cup gradually and progressively
compress the teat from the root downwards and produce an action thereon similar
to that of the hand when "stripping."
In 1001
H. D. FITZPATRICK,
70 Wellington Strect, Glasgow, Agent.
Improvements in Teat Cups for Milking Machines.
I, ALEXANDER SHIELS of 190 Bath Street, Glasgow, M.B., C.M., B.Sc., 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 teat cups for use in connection with milking machines
and it is a further development of my prior invention No. 4558 dated 2nd March
1002

page_text: 66
The present invention has for its object to improve the construction and action of
the teat cup and to render it capable of thoroughly stripping" the cow's teats.
To enable it to perform this latter function it is necessary that the cup should
gradually and progressively collapse, from the neck downwards towards the bottom,
so as to produce an action like the hand, when milking.
And in order that my said invention may be properly understood I have hereunto
appended an explanatory sheet of drawings, whereon,
Fig. 1 is a vertical section of the improved teat cup.
Fig. 2 is a horizontal section taken on the line - Fig. 1.
Fig. 3 is an enlarged view of the lip b.
In this invention the inner lip of the cup a is made of a gradually decreasing
diameter towards the edge or tip and its thickness is, preferably, tapered from
the root towards the tip (as shown more particularly in the enlarged view Fig. 3)
whilst the vertical grooves c are made longer than heretofore. The depth of these
grooves e is not the same throughout but gradually diminishes from the neck part e¹
down to the bottom 2. Lines drawn along the bottoms of these grooves would be
parallel with an axial line drawn through the centre of the cup.
The thickness of the walls of the cup, which, as shown, is somewhat cylindrical
in shape, gradually diminishes from the maximum thickness at the centre a to the
minimum at the neck part and at the bottom.
The interior surface of the cup gradually tapers or diminishes in diameter from
the bottom at d to a point, indicated by the dotted line e, preferably a little
above the centre, and from this point to the neck the surface is cylindrical the
interior side walls being parallel. The exterior surface of the cup, on the other
hand, is perfectly cylindrical from the bottom to the centre or to a point el
(indicated by the dotted lines) preferably a little below the centre, and from this
point it gradually diminishes in diameter up to the neck.
fare internal corrugations.
The construction is such that, at cach pulsation, as the vacuum gradually
increases from the minimum to the maximum, the walls of the cup gradually and
progressively compress the cow's teat from the root downwards and produce an
action thereon similar to that of the hand when "stripping" the teats of a cow.
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
consider novel and desire to claim is :-
The improved construction of teat cup for milking machines substantially as
herein before described with reference to the drawing annexed.
Dated this 1st day of May 1895.
H. D. FITZPATRICK,
70 Wellington Street, Glasgow, Agent.