Improved Device for Detaching Cattle from the Stalls.
Year: 1893

page_text: Date of Application, 11th Apr., 1893—Accepted, 22nd July, 1893
Improved Device for Detaching Cattle from the Stalls.
I, ERNST ZORN SLATER, of Barth in the Kingdom of Prussia, German Empire,
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 present invention consists of a device by means of which all the cattle
contained in a stall can be simultaneously and instantaneously released by a lever
movement.
Hitherto it has been necessary to unchain each beast separately from the stall,
so that in case of fire for instance great loss of valuable cattle has often been
incurred by the fact of the cattle in the said stalls not having been able to be
unchained in time to get them out before being burnt to death.
In the device forming the object of the present invention the chain of each beast
is attached to the stall by means of a sliding bolt, each bolt being operated by a
pivotally arranged lever, and all the levers being actuated from one common hand
lever, by means of connecting or coupling wires, ropes, rods, or the like, extending
through the whole stall. Thus in case of fire it is only necessary to throw the
hand lever over and all the beasts contained in the stall will be simultaneously and
instantaneously released.
Instead of operating the lever by hand, the same may be worked by a spring
and liberated by means of an electro-magnet. Such device has the advantage that
in case of fire, it is not necessary to go down to the stalls, which are sometimes at
a considerable distance from the farm house, but by simply closing the circuit the
cattle will be released automatically.
In order to make this Specification more easily intelligible, reference is had to.
the accompanying drawings forming part of the same and in which similar letters
denote similar parts throughout the several views.
Fig. 1 is a section on line of Fig. 2 through a stall provided with my device.
Fig. 2 is a plan of the stall.
Fig. 3 is a section on line y y of Fig. 2.
Fig. 4 is a detail view of the chain attachment.
Fig. 5 is the same view showing the chain detached.
Fig. 6 is a detail view of a modification of the device.
Fig. 7 an end elevation partly in section of the same modification.
Fig. 8 is a side elevation of the same modification, and,
Fig. 9 a diagrammatic representation of the device when adapted to be released
by an electro-magnet.
The main object of the present invention is to avoid complications of any kind,
as it is practically impossible to keep any mechanism very clean in stalls of any
kind, and with complicated mechanism, cleanliness is as a rule an absolute
necessity.
A is a double lever, pivotally attached at a to the wall of the stall or in any
other suitable manner, near a window or door of the said stall. To the lever A on
the opposite sides of its pivot a are attached lines b, c, consisting of wire rods,
chains, or the like, extending through the whole stall and connected at their further
ends to a pivoted lever B. These lines are attached at certain points along their
length, to bell cranks C revolubly mounted on posts D standing at the corners of
the double rows of mangers or stalls (Figs. 1, 2, and 3). To the free arms of each
of these two bell cranks are connected branch lines b, c running along the mangers
and joined at their further ends to the opposite ends of pivoted lever B¹ (Fig. 3).
[Pics]
a

page_text: The upper b¹ of these two lines carries adjustable sleeves m pivotally connected
to a double lever d, d', which is pivotally supported on the side of the manger.
The upper end of these double levers is hinged to a tapering bolt e adapted to
slide in and out of three eyes or loops f, g, h, having varying diameters to fit the
said bolt when it is in position, f being the smallest eye. The end of the bolt e
secures between the loops ƒ and g a link of the chain i to which the cattle is
attached.
The operation of the device is as follows:-
"
Supposing the cattle to be chained up to the stalls on throwing over the lever A
the lines b, c, will be shifted and with them by means of bell cranks C the branch
lines b, c, and the levers d, d', will be caused to withdraw the bolts e from the
loops f, g, h, and let go the chains i, releasing all the cattle in the stalls.
simultaneously (Fig. 5).
.
In
The lines b and c and b', c', if of wire, rope or chain should preferably be
provided with some suitable kind of tightening device as shown at Fig. 1. These
lines may be arranged inside or outside of the building or walls of the same.
the case of smaller stalls instead of the lines b, c, and bell cranks C the lever A
may be connected up to the branch lines c¹, b¹, direct.
g
Figs. 6 7 and 8 show a modification, in which one line 2 is employed instead of
two lines, this line being operated by a horizontal double lever H pivotally mounted
at the end of the stall. The lines 62 on each side of the stall are connected to
each other over the said stall by means of a chain passing over a horizontal
adjustable lever 9 which is supported by screw spindles s, s, in standards, p, said
spindles being provided with hand wheels s'. The connecting chain t for the
wires 6 on each side of the manger runs over rolls r, r, on each end of the bar
and is also guided by similar rolls r, r, attached to the mangers. In this case the
operating lever A is also preferably worked horizontally as shown in Fig. 6. The
lines may thus be tightened by means of the bar g being raised by turning
the hand wheels &, which will raise the screw spindles.
Fig. 9 shows the system arranged to be operated by an electro-magnet. The
lever A is in this case provided with a notched retaining arm A¹ and a spring F
connecting it above its pivot to a stationary point. o is an electro-magnet, n the
armature in the form of a pivoted lever having upwardly extending arm K
carrying a catch adapted to engage in the notches of the arm A' of lever A when
the bolt e is in place in the loops f, g, h.
On completing the circuit the armature n will be attracted by the electro-
magnet o and the catch of arm K disengaged with the notched arm A¹ of lever A,
the spring F will thus be freed and pull the lever over, releasing the cattle in the
stalls as previously described.
In order to chain up cattle according to the present invention the lever A should
be thrown back half way so that the point of each bolt extends through the loop g
the chain rings or links may then be hung on each bolt and then the lever A thrown
completely back securing each chain.
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 :-
(1) In stalls, the combination of tapering bolts e moving in loops or eyes 'f, g, h,
and hinged to pivoted levers d, d', said bolts adapted to retain or hold the ring or
link of the cattle chain, and flexible or rigid lines b', c', to operate said levers d, d',
said lines being connected at one end to a pivoted double lever B¹ and at the other
end to an operating lever A in the manner and for the purpose substantially as
described and shown.
(2) The combination of the bolts e having loops or eyes f, g, h, and each hinged
to a pivoted lever d, d¹ lines b', ', to connect up said pivoted levers said lines
having double lever B' at one end, bell crank levers C mounted as specified
and having each one arm connected to one end of said lines 6', c', and main lines b, c,

page_text: having operating levers A and B and connecting up the said bell cranks in the
manner and for the purpose substantially as described.
(3) In combination with bolts e guided in loops or eyes f, g, h, and each hinged
to a lever d, d', and lines connecting up the said levers to the operating lever A as
specified, a notched arm A¹ on lever A an electro-magnet o having armature na
catch on the armature n to engage the notched arm A and a spring F to actuate
lever A when the same is released by the electro-magnet from its retaining catch k
and means for closing the circuit substantially as described and shown.
(4) In combination with bolts e each guided in loops or eyes f, g, h, and hinged.
to pivoted levers d, d', a single line b* connected to said levers d, d', a horizontal
connecting lever H and horizontal operating lever A and means for connecting and
tightening said lines 62 over the mangers consisting of a horizontal arm 9 having
guide rolls r screw spindless, s, carrying said arm and mounted in standards p, p,
and hand wheels s¹, s, to raise the screw spindles in the standards, and guide
rolls r,, on the manger for the connecting chain for the lines 2 substantially as
described and shown.
Doted L: 111
2 A
1 1000
CASTLE SMITH,
"Invention" Office, 54, Fleet Street, London, E.C.,
Agent for the Applicant.
CASTLE SMITH,
Invention" Office, 54, Fleet Street, London, E.C.,
Agent for the Applicant.