Improvements in or relating to Crutches.
Year: 1898

page_text: PROVIDIUNAL SIMULETUATION
Improvements in or relating to Crutches.
I, JAMES MCALLISTER, 35, Darnley Road, Barrhead, Scotland, Iron Moulder, do
hereby declare the nature of this invention to be as follows:-
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This invention consists of improvements in or relating to crutches, the object
being to reduce the jar when in use, also affording the individual a better means
of gripping the crutch. In carrying out my invention I provide the top of the
crutch with a pneumatic or air cushion suitably arranged, and which is in com-
munication with a valve of any convenient form for the purpose of inflation. I
also provide the crutch with a gripping surface formed of rubber or other suitable
material adapted in shape to the grip of the hand so that the fingers and thumb
may enter recesses. At the end of the crutch I provide a ball or surface of rubber
which is suitably carried in a ferrule or attached to the end of the crutch for
the purpose of reducing the jar when the crutch is in use.
Referring to the annexed drawing c is an outer cover, j is an inner air cushion or
tube which is inflated through the valve of any suitable construction b when required,
the whole being secured to the crutch stick a in any convenient manner, such as
by the screw thread socket d. f is a support which carries material e prefer-
ably rubber which is grooved, so as to receive the fingers when holding the
crutch. g is a rubber ball or such suitable material which is attached to the end
of the crutch by means of the socket piece for the purpose of preventing jar
when in use.
1000
I, JAMES MCALLISTER, 35, Darnley Road, Barrhead, Scotland, Iron Moulder, 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 consists of improvements in or relating to crutches, the object
being to reduce the jar when in use, also affording the individual a better means
of gripping the crutch. In carrying out my invention I provide the top of the
crutch with a pneumatic or air cushion suitably arranged, and which is in com-
munication with a valve of any convenient forin for the purpose of inflation. I
077

page_text: also provide the crutch with a gripping surface formed of rubber or other suitable
material adapted in shape to the grip of the hand so that the fingers and thumb
may enter recesses. At the end of the crutch I provide a ball or surface of rubber
which is suitably carried in a férrule or attached to the end of the crutch for
the purpose of reducing the jar when the crutch is in use.
For the purpose of illustration I will now refer to the drawings left with my
Provisional Specification in which :-
Figure 1, is a sectional side elevation showing my invention.
Figure 2. Section through line X-Y, in Figure 1.
Figure 3. Sectional elevation or grip.
Figure 4. Sectional elevation of india rubber ball and socket.
C is an outer cover, is an inner air cushion or tube which is
inflated through the valve of any suitable construction b when required, the
whole being secured to the crutch stick a in any convenient manner, such as
by the screw thread socket d. f is a support which carries material e prefer-
ably rubber which is grooved, so as to receive the fingers when holding the.
crutch. is a rubber ball or such suitable material which is attached to the end
of the crutch by means of the socket piece for the purpose of preventing jar
when in use.
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:-
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1. In crutches the combined construction and arrangement of the various parts
substantially as described and illustrated herein and for the purpose set forth.
2. In crutches the means for reducing the jar when the crutch is in use,
consisting of a pneumatic cushion for the person of the wearer to bear upon;
said pneumatic cushion being inflated when required through the medium of a
convenient valve. An outer cover secured around said pneumatic cushion in any
convenient manner. Holders or supports carried upon the stem of the crutch
and supporting india rubber grips or such suitable material arranged and adapted
to suit the grip of the hand. An india rubber ball or such suitable material
carried in a socket attached to the end of the crutch, all in combination and sub-
stantially as described and illustrated herein and for the purpose set forth.
Dated this 16th day of May 1899
F. EATON,
Agent for Applicant.