Horses and other Animals by Torsion.
Year: 1886

page_text: Horses and other Animals by Torsion.
I JOSHUA ARTHUR NUNN of The Conservative Club Saint James Street in the
County of Middlesex an Officer in Her Majesty's Army Veterinary Department do
hereby declare the nature of this invention to be as follows:—
This instrument is for performing the operation of castration on horses and
other animals by torsion and its special advantages are Firstly-its portability and
Secondly-The impossibility of any premature rupture of the cord taking place in
the hands of an unskilled operator as both the clamps and torsion forceps are
combined in one instrument.
The plan of the clamp is shown in figure I. .It is formed of two pieces of iron
or other metal A & B which work on a hinge or pivot C. in which is a square
knob D the use of which will be hereafter mentioned.
The handles of the two arms of the clamp are fastened together by a ratchet
or a screw E that works on a pivot F and a spring G. in slots cut in the ends of
the handles H. H.
Figures II and III are the plan and upper view of the arm B. In it a nitch
shown at C. D (Fig. III) is cut out. In the centre of this nitch a groove is cut to
the depth of about of an inch which is shown by the dotted line E F. GH
(Fig. III) and at AB (Fig. II) The borders of the groove "OD. E F" (Fig. II)
are roughened.
The arm A is shown in Fig. IV. It is furnished with a projection BC. corre-
sponding with the nitch C. D. (Fig. III) the edges of which projection D. E F are
narrowed off to fit in the groove EFGH (Fig. III) The edges of the projec-
tion BC are roughened to correspond with the surface C. DE F. (Fig. II) and the
same is done on the narrowed portion D. E. F. Fig. IV which fits into the groove EF
G. H. (Fig. IIL)
A square rod of iron A (Fig. V) fits into the square hole D. (Figs. I & V). This
rod A is furnished at its lower end with a shoulder B (Fig. V) and a screw C.
(Fig. V) which is secured with a nut E. This rod carries an arm a plan of which
is shown at Fig. VI at one end this arm is pierced with a square hole F. (Figs. V
and VI to allow it to slide up and down the entire length of the rod A (Fig. V.)
and to be taken off it at pleasure. The other end is pierced with a round hole G.
(Fig. VI) to carry the arm of the crank H (Fig. V) The crank is made out of a

page_text: round pin of iron steel or other metal so as to allow of its revolving in the hole G.
At its upper end it is furnished with a wooden handle I I. Fig. V fastened on to it
with a screw and nut K allowing the handle to be taken off and the crank to be
drawn through the hole G. and detached from the arm at pleasure. The crank is
bent in the form shown at H fig. V. and at its lower end carries a second smaller
clamp a plan of which is shown at Fig. VII. This clamp is formed of two flat
pieces of steel iron or other metal A B Fig. VII working on a binge C and are
fastened tightly together with a thumb screw D that works on a pivot E fitting
into two slots in the ends of the blades L Figures V and VII. The edges of the
two blades A B Fig. VII where they are in opposition with each other are roughened
as shown by the line F. The hinge C is pierced with a square hole M. (Figs. V
and VII into which the lower end of the crank rod H (Fig. V) fits. It is furnished
with a shoulder N. Fig. V) below which it is squared O. Fig. V) so as to exactly fit
into the square hole M. (Fig. VII) to which it is fastened by a nut and screw P
(Fig. V).
By undoing the nuts and screws E. K. & P. Fig. V withdrawing the rod A taking
the arm off the rod A. the handle J the crank H from the arm and the clamp
Fig. VII from the crank H (Fig. V).the whole apparatus takes to pieces and will
pack up into a case of a very compact nature.

page_text: An Instrument for Performing the Operation of Castration on
Horses and other Animals by Torsion.
JOSHUA ARTHUR NUNN of the Conservative Club Saint James's Street in the
County of Middlesex an Officer in Her Majesty's Army Veterinary Department 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 is a new Instrument for performing the operation of Castration
on horses and other animals by torsion and in order that the said Instrument may
be better understood I annex drawings illustrative thereof and I describe it in the
following manner.
.
The Instrument is formed of two arms A. B Fig. I that work on a hinge C. The
upper arm A is straight but has on it the blade D with a roughened edge This
blade D is of a lesser width than the arm A as shown in Fig. II which gives a view
in profile. The arm B is bent into a hollow E corresponding with the blade D
only smaller, a groove being cut into it to admit of the overlapping edges and
allow it to fit tight when the arms A. B are closed. This groove is shown in the
dotted lines E F fig. L. The arm B has a rod with a screw cut in it G. that works
on a hinge H. It is provided with a thumbscrew I. The screw rod G fits into
two slots shown at J. K. Figs. I and III these slots are cut transversely in the
arms A. B allowing them to be tightly closed by the action of the thumbscrew I.
Fig. III shows the elevation of the instrument the hinge C. Fig. I is continued
into a square rod C. Fig. III. This rod is hinged at L allowing it to fold flat with
the arm B for convenience in packing It is kept in an upright position with Bat
right angles by the collar M that slides up and down on the rod C. as far as the
stud N which prevents it falling off. The transverse slots in the arms A. B. Fig. I.
J. K are shown at J. K Fig. III The square rod C. has a cross arm on it a plan
of which is shown at Fig. IV. The ends are pierced with two holes one round P.
the other square Q The square hole Q is the same size as the rod C. and is pro-
vided with a thumb screw to clamp the arm tight on to the rod from which it can
also be removed at pleasure. The cross arm O has a crank S on it which revolves
in the round hole P. The upper end of this crank S is cut into a screw T. into
which is screwed a handle U by which motion is given to the crank S. The lower ⚫
end of the crank S is furnished with two jambs V which form a clamp they are
shown in plan at Fig. V. partly open The two jambs VV work on a hinge W at
the end of the crank S. They are roughened at their inner edges to afford a better
grip and at one end are furnished with a screw X Fig. V which fastens them
together tightly in the same manner as the screw G. does the arms A B in Fig. I.
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. To have invented the said instrument for performing the operation of Castra-
tion of horses and other animals by torsion in place of by the methods now_in
general use.

page_text: 2. I also claim as a second feature of novelty in the said instrument that by the
use thereof the torsion takes place from a fixed point (as at the arm O) and
thereby obviates the danger of dragging the cord and all chance of a dangerous
rupture attendant thereon to which the usual methods of performing the operation
are now exposed.
3. I claim as a third feature of novelty the manner in which the said instrument
can be taken to pieces and be packed into a very small compass.
EDWARD W. NUNN,
67, Russell Square,
Agent.