Improvements in Milking Machines.
Year: 1892

page_text: Date of Application, 10th Oct., 1892
Complete Specification Left, 10th July, 1893-Accepted, 26th Aug., 1893
PROVISIONAL SPECIFICATION.
Improvements in Milking Machines.
We, JOHN LACEY DAVIES of Chipstead, Surrey Civil Engineer and
RICHARD CHARLES BAKER of 110 Southwark Street London Merchant do hereby
declare the nature of this invention (a communication to us from abroad by
Jens Nielsen of 172 Gamle Kongevej Copenhagen Denmark Manufacturer) to be
as follows:-
The first part of our invention consists of a yoke or gallows-shaped frame which
is put upon the cows back somewhat in advance of the udder and one leg of which
serves for the attachment of the milking machine proper thereto. The yoke is
made in two parts each consisting of a vertical leg and a horizontal cross part, the
two said cross parts sliding in or on each other so that the yoke can be adjusted
according to the width of the cow's body. The leg and the cross part in each may
be made of wood with a uniting tubular metal angle socket, the cross part of one
sliding in the angle socket of the other, means being provided for adjustably fixing
one to the other such as a double armed clamping lever on the angle socket
dragging in a groove in the cross bar passing through it and which in this part
may be armoured with a thin brass tube provided with the required groove. The
two sides of the yoke are also connected by two straps each at one end fixed to a
peg, then passing to the other side of the yoke, round a peg thereon and back to
the first named peg against which it is held sufficiently tight by a lever shaped
tongue. To alter the length of the straps between the legs of the yoke the tongues
must be raised. The pegs may be on metal sockets which are adjustable on the legs
of the yoke.
From one leg of this yoke the milking machine is hung so that it can be instan-
taneously detached. For this purpose I provide on the leg a socket with a bracket
wherein the machine frame rests. This socket is suspended by a strap from a
clamping appliance or spring tongue on the leg. The bracket consists of an upper
horizontal arm with downwardly prolonged sloping guard and a lower arm with
sloping guide plate. The framing of the milking machine proper takes its place
between the said two arms so as to rest quite securely therein, its own weight being
sufficient for this; at the same time it may be instantaneously disengaged from
this bracket by taking hold of the frame and raising and slightly canting it with
one side down against the guard plate. When inserting it again the guard plate
and the guide plate assist in guiding it into the right position.
The main frame of the milking machine proper consists of two long bars whereby
the machine is suspended in the bracket just described, a third shorter bar is
united to one of the said long bars by tie pieces. These two last named bars serve
as bearings for the working parts of the machine. The two long bars are at the
end away
from the machine proper connected by an intermediate block containing
the bearing for the spindle of a driving handle which spindle also carries a sprocket
wheel. Through the block is a hole for the shank of a saddle shaped piece which
is held against the knee of the operator and which can be adjusted in the block,
the latter also carries a handle which is taken hold of by the operator's left hand for
steadying the machine while he rotates the driving handle and spindle with the
right hand. Motion is communicated by endless chain from the aforesaid sprocket
wheel to a sprocket wheel on a spindle having its bearings in the other end of the
framing.
On this spindle are fixed two eccentrics one at each end which by eccentric
straps with cross-bar shaped ends work backwards and forwards a rod whose end
gudgeons slide in slots in the frame parts and similarly reciprocate another rod

page_text: In &
which is connected by a connecting link at each end to the first named rod.
similar manner other two eccentrics by means of their straps with cross-bar shaped
ends and by connecting links reciprocate two other rods. The rods in addition to
their reciprocating motions receive also a rocking or oscillating motion as will be
understood from the motion of the said eccentrics and their straps with cross-
bar ends.
On the rods are fixed segment shaped rockers similar in form to those described
in the Specification of Nielsen's Patent No. 11875 of 1891, their motion being also
similar to that therein described. These segment shaped rockers are made of thin
sheet steel but are cut through in three places or thereabouts for the purpose of
giving them greater adaptability to teats of different sizes. They do not come in
direct contact with the teats but a detachable canvas rubber covering sheet is
provided for each; canvas sheet rubber aprons are connected to the coverings of
the outer rockers and buttoned to the tie bars of the frame.
The four rods carrying the aforesaid four segment shaped rockers are not parallel
but converge towards the back of the machine to adapt them to the natural position
of the teats, the two front teats being further apart than the two rear teats.
To the underside of the machine is attached a milk receptacle with bottom outlet
funnel which by a flexible pipe leads the milk to the pail.
It is most suitable to use two pairs of segment shaped rockers having the motion
described, but instead of this we may use in each pair one reciprocating rocking
segment and one segment having no reciprocating but merely a rocking motion.
Or instead of such segment with merely rocking motion we may use a nearly flat
motionless cushion or such a cushion having a reciprocating motion.
Dated this 10th day of October 1892.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.
COMPLETE SPECIFICATION.
Improvements in Milking Machines.
We, JOHN LACEY DAVIES of Chipstead, Surrey, Civil Engineer and RICHARD
CHARLES BAKER of 110 Southwark Street, London, Merchant, do hereby
declare the nature of this invention (a communication from Jens Nielsen of
172 Gamle Kongevej, Copenhagen, Denmark, Manufacturer) and in what manner
the same is to be performed to be particularly described and ascertained in and
by the following statement :-
The first part of my invention consists of a yoke or gallows-shaped frame which
is put upon the cow's back somewhat in advance of the udder and one leg of which
serves for the attachment of the milking machine proper thereto.
In the accompanying drawings
Fig. 1 shews the machine in operation with its peculiar yoke or gallows-shaped
frame by which it is attached to the cow.
Fig. 2 is a back view and Fig. 3 a side view of the yoke. Figs. 4, 5 and 6 are
detail views of same.
This yoke consists of an angular piece A B and an angular piece C D which two
pieces can be adjusted against each other according to the extreme differences of
width of the body of the cows somewhat in advance of the udder. The parts A
and B made of wood are united by a metal angle socket A. The part B can slide
in the metal angle socket D to adapt the yoke to the size of the cow; on it is fixed
a metal tube B having a longitudinal groove B* wherein fits the end of a double
armed clamping lever D' with drag spring D2; the socket D fits on the tube B
with some friction. Or as shown in Fig. 4 the socket D has a feather D* which
works rather tightly in the groove B*. The two sides of the yoke are also
connected by two straps E-each at one end fixed to a peg Cx by sewing as shewn
more fully at Fig. 5, then passing to the other side of the yoke round the peg A*

page_text: back to the peg Cx against which it is held sufficiently tight by the lever shaped
tongue C. To alter the length of the straps between the pegs A* and C* the
tongue C must be raised. The pegs A* and C* are on sockets A and C which
are adjusted on the pieces A and C and fixed by set screws A³ and C³.
From one leg of this yoke the milking machine presently to be described with
reference to Figs. 7 to 20 is hung so that it can be instantaneously detached from a
bracket on a socket F on the piece C. This socket fits freely thereon and can be
raised and lowered thereon by the strap G. The free end of the latter is held fast
by the spring tongue G₁ pressing upon it or by any other suitable clamping
appliance. G is a hook for holding the tongue while the strap is being adjusted.
The bracket as shewn in Figs. 3 and 6 consists of an upper arm F with turned
down part F and guard plate F³ and a lower arm F with sloping guide plate F.
The framing H H of the milking machine proper takes its place between the
arms F and the arms in the manner shown so as to rest quite securely therein,
its own weight being sufficient for this; at the same time it may be instantaneously
disengaged from this bracket by taking hold of the frame H H' and raising and
slightly canting it with the side H down against the guard plate F³. When
inserting it again the plate F³ and the plate F assist in guiding it into the right
position.
Figs. 7, 7 are side views of the milking machine proper.
Figs. 8, 8 are plan sections
Fig. 9 a sectional side view and
Fig. 10 a cross section on line A-B Fig. 8.
Fig. 1 is part sectional end view of one of the teat squeezers and
Fig. 12 a view of the inner or squeezing side of sarne.
HH are two bars constituting the main frame whereby the machine is
suspended in the bracket just described with reference to Figs. 3 and 6.
H is the third part of the frame. The parts H' and H are united by the
tie pieces H H³ and serve as bearings for the working parts of the machine.
The spindle I has fixed on it a sprocket wheel which by the endless chain I'
and sprocket wheel K and handle K2 on the spindle K can be rotated to work
the machine. The spindle K works in a bearing in the piece H* which is fixed
to the part H'. The rod L is provided with saddle part L' at its lower end
for resting against the knee of the operator and passes down through the part H*;
it can be fixed to the required height by the set screw L. H is a handle
fixed to the frame part H'; it is taken hold of by the left hand of the operator
to steady the machine while he turns the handle K by the right hand.
On the spindle I are fixed two eccentrics M one at each end which by eccentric
straps with cross bar shaped ends M' work the rod N backwards and forwards
whose end gudgeons slide in slots in the frame parts H' and H2 and similarly
reciprocate the rod N' because of the connecting links M². In a similar manner
the eccentrics 00 by means of the eccentric straps with cross bar shaped
ends OO reciprocate the rod P and thus also by the connecting links 02
reciprocate the rod P¹. The rods P and P¹ work in slots in the frame parts H'
and H. But the rods P and P¹ and N and N' also receive a rocking or oscillating
motion as will be understood from the motion of the eccentrics and their straps
with cross bar ends.
On the rods P and P' and N and N' are fixed segment shaped rockers P* N* N*
and Pix respectively similar in form to those described in the Specification of
Nielsen's Patent No. 11,875 of 1891 the motion being also similar to that therein
described. These segment shaped rockers are made of thin sheet steel but are as
shewn in Fig. 12 cut through on the curved side in three places (or thereabouts)
for the purpose of giving them greater adaptability to teats of different sizes.
They do not come in direct contact with the teats but a detachable canvas rubber
covering sheet Q is provided for each. Q₁ are canvas sheet rubber aprous
connected to the coverings of the outer rockers and buttoned to the tie bars of
the frame.

page_text: The four rods P P' and N N' carrying the aforesaid rockers P* N* N¹× P¹× are
not parallel but converge towards the back of the machine to adapt them to the
natural position of the teats, the two front teats being further apart than the two
rear teats. It will be understood that one front and one rear teat are squeezed
between the rockers Px and N* and the front teat and rear teat between the
rockers N and P¹× the rockers receiving a receding and advancing motion towards
the teats and also a rocking motion.
To the underside of the machine is attached a detachable receptacle S with
bottom outlet funnel S¹ which by a flexible hose pipe T leads the milk to the
pail T' Fig. 1.
It is most suitable to use two pairs of segment shaped rockers having the motion
described but instead of this we may use in each pair one reciprocating rocking
segment and one segment having not reciprocating but merely a rocking motion.
Or instead of such segment with merely rocking motion we may use a nearly
flat motionless cushion or such a cushion having nearly a reciprocating motion.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
:-
1. A yoke shaped appliance A, B, C, D provided with means for adjusting the
width between its two side members A and C which are connected by a strap or
straps adapted to rest the yoke on the back of the cow with means for suspending
a milking machine from the yoke substantially as set forth.
2. In combination with a yoke shaped appliance resting on the back of the cow
a bracket F F F F F for attaching thereto the milking machine and adapted for
instantaneous attachment and detachment of the latter.
3. A milking machine framing consisting mainly of the parts H H and H³,
suitable ties between the parts H¹ and H' and a piece H* between the parts H
and H and to which the driving handle K² and spindle K, the adjustable knee
rest L L' and the steadying handle H are connected.
4. A milking machine having two pairs of teat squeezing appliances P* N*
and Pix, Nix Figs. 8 and 9 in a converging direction to adapt themselves to the
position of the teats.
5. The milking machine with two pairs of converging segments Figs. 7, 7, 8, 8, 9
and 10 consisting essentially of a framing H, H, H³, H³ driving spindle K with
winch handle K2, spindle I with spocket wheels K and 11 and chain 1,
eccentrics M M, eccentric straps M1 M', rods N and N', links N* and segments P* Nx
and Pix Nix.
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