Year: 1896

page_text: Date of Application, 15th Apr., 1896
Complete Specification Left, 14th Jan.. 1897-Accepted, 10th Apr., 1897
I, RONALD CADELL MACDONALD of Coppull, Chorley, Lancashire, Physician,.
M.B.C.M., F.R.C.S., L.R.C.P., etc., do hereby declare the nature of this invention.
to be as follows:-
This invention relates to an improved axis tractor. The instrument when closet:
is entirely contained in the handles of the midwifery forceps, but when required
folds out from the handles. It can be adjusted to any type of such forceps.. The:
apparatus consists of two bars one end of which is hinged or otherwise connected to.
the upper end of the handles of the forceps. These bars fold out of the handles.
and are connected at their other ends to two other rods, which run down towards
the lower ends of the handles, and they are connected by a rack, which also keeps.
the handles of the forceps together. The handle of the axis tractor is connected
to the rods already referred to by means of two small bars, which are locked by a
suitable catch.
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow, Applicant's Agents..
I, RONALD CADELL MACDONALD, late of Coppull, Chorley, Lancashire, but.
now of Linlithgow, Physician, M.B.C.M., L.R.C.S., L.R.C.P., etc., 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:
My invention relates to an improved axis tractor. The instrument when closed
is entirely contained in the handles of the midwifery forceps, but when required
folds out from the handles."
In order that my invention may be properly understood and readily carried into.
effect I have hereunto appended a sheet of drawings of which
Figure 1 is a view of a pair of forceps shewing the axis tractor ready for use.
Figure 2 is a view of the forceps with the axis tractor when not in use, these
being contained within the forceps handles.
The apparatus consists of two compound jointed bars A, A' one end B, B' of
which is hinged or otherwise connected to the upper end of the handles C, C', of
the forceps D. These compound bars A, A1, fold out of the handles C, C', and
are connected at their other ends E, E to two angular rods F, F1, which run
down towards the lower ends of the handles C, C and they are connected by a
rack G, passing through holes or openings in the rods F, F, which also keeps the
handles C, C, of the forceps D together. The handle H of the axis tractor is.
connected to the rods already referred to by means of a jointed bar I which.

page_text: is connected to the rod F and bears against the bar F¹ by means of a crossbar J all
as shewn in Figure 1 of the annexed drawings.
When the axis tractor is not to be used the rack G is withdrawn and the upper
portions of the compound jointed bars A, A1, are turned down till they lie in the
slots K, K', while the lower portion of these bars turn up and rest on the top of
the upper portion of the jointed bars. The rods F, F, being pivoted to the lower
ends of the bars A, A¹, turn inwards also along with them and so are enclosed in
the slots. The rod I to which the handle H is connected being also pivoted to the
rod F, is capable of being turned until it lies in the slots. The whole therefore is
entirely enclosed or encased within the slots K, K', in the forceps handles so that it
does not in any way interfere with the operator of the forceps as will be seen in
Figure 2.
Having now particularly described and ascertained the nature of my invention
and in what manner the same is to be performed, I declare that what I
claim is :-
An axis tractor constructed so that when not required for use it can be encased
within the forceps handles, all substantially as and for the purpose herein before
described and illustrated on the accompanying sheet of drawings.
Dated this 13th day of January 1897.
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow, Applicant's Patent Agents.