Surgical brusses SUCH as are used for nerma, and etener of single of motion arms.
Year: 1895

page_text: Date of Application, 18th Jan., 1895-Accepted, 23rd Feb., 1895
Surgical brusses SUCH as are used for nerma, and etener of single of motion arms.
The invention is illustrated in the sheet of drawings annexed to this
Specification,
Fig. 1, being a representation of a double truss, with top view of the joints.
Fig. 2, representation of a single truss.
Fig. 3, two views of the pad.
The chief objects of our invention are, to give increased comfort to the wearer;
to avoid undue perspiration at the back and at the pad, to give increased pressure
to the pad, with reduced weight of truss, and facility in fixing and removing
the truss.
In carrying out our invention, we make a double truss such as shown in Fig. 1,
as follows: We take two pieces of spring steel and shape them for the arms A, and
instead of terminating them at the point marked A', and attaching a separate
piece to form the depending end A2 as heretofore, we bend down the end of the
steel in the manner shown and thus construct a solid and continuous termination A²
upon which the pad P, is fixed. This method of making the end solid, that is
without a joint at A', increases the pressing power of the arm upon the pad.
Instead of the two arms being formed of a continuous piece of steel, so that
to put on and take off the truss it is necessary to spring it open, which eventually
causes the steel to give way, we make the arms separate and attach them to a
joint plate B, by means of two short hinged arms H, at the back of the joint
plate B. By this arrangement the arms A, can be opened without injuring their
elasticity. The plate B, and short arms H, we construct of aluminium, and
perforate those parts which bear against the body of the person or wearer to
permit the escape of moisture, and to diminish perspiration.
We make the pads shown in Fig. 3, of aluminium preferably, and hollow to
reduce the weight, and perforate it both on the flat and on the convex side
to diminish perspiration, but we do not bind ourselves to perforate the parts
mentioned, nor to the use of aluminium as other metals may be used if preferred.
The single arm truss shown in Fig. 2, is constructed on similar lines to that
before described, except that the joint plate B, has one end removed, and has a
double joint, one part J, to receive the usual strap S, and the other part to receive
the arm A.
In some cases we cover the arms with thin sheet aluminium, and where preferred
we may use the ordinary pad with our improved arms and joints.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is:
1. The improvements in the construction of trusses, as hereinbefore described
and shown in the drawings annexed.

page_text: 2. In trusses, connecting the elastic arms A, by means of a joint plate B, to
which they are hinged, for the purpose specified, and substantially as herein before
described.
3. In trusses, connecting the two arms by means of a joint plate and hinges, and
turning down the ends A2 of the arms A, from the solid in the manner as herein-
before described and shown.
4. A single arm truss as shown in Fig. 2, with a joint plate B, pivotted to the
arm A, and a metallic perforated pad P, substantially as hereinbefore described
and shown.
Dated the 15th day of Jannery 1895
ROBT. F. DRURY, C.P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicants.