improvements in Artincial Legs.
Year: 1899

page_text: improvements in Artincial Legs.
We, NIELS FAARUP, Dock-labourer, of Elsinore, and POUL CHRISTENSEN,
Merchant, of 30, Holbergsgade, Copenhagen, Denmark, do hereby declare the
nature of this invention to be as follows:-
The mode of securing artificial legs has always the great inconvenience that
the artificial legs (which as a rule consist of a sort of covering or case which is
arranged around the lower part of the natural leg) must be secured in a very
inconvenient manner; greaves or rails and straps being led from the artificial
leg along the thigh and the said straps being secured around the waist or in a
similar manner and this greatly interferes with the gait of. the invalid.
When the leg has been amputated below the knee it has been customary to
place the knee in bent state in a kind of fork affixed to the upper end of the
artificial leg and the mode of securing such artificial leg by means of greaves
or rails along the thigh and by straps around the waist has also been very
inconvenient.
The present invention is designed to obviate these inconveniences and is
illustrated in the accompanying drawing where:-
Fig. 1 shows vertical section through an artificial leg, while Figs. 2 and 3
show modification of same.
The artificial leg which is made as light as possible is secured by arranging a
sort of air-chamber or tube inside the covering or case a which air-chamber
when the leg-stump has been placed into the case is inflated from the outside for.
instance through a valve c as used in pneumatic tyres.
The tube when inflated will clasp round the natural leg and keep the case on
it no securing with straps being needed.
The artificial leg can very easily be secured in the herein-described manner
by inflating the tube; it can also be promptly removed by deflating the tube b.
The leg-stump is placed in a sort of rubber-stocking or hood d consisting of
a bag of rubber the bottom of which does not reach the bottom of the case and
the upper part of which consists of a thick rubber ring e resting on the upper.
edge of the case a. Consequently the end of the natural leg never
subjected to any pressure against a hard substance because it rests in the
suspended rubber bag d.
can be

page_text: The modified form shown in Fig. 2 is secured by applying two annular air-
chambers or tubes 6 while Fig. 3 shows an artificial leg which is secured by
arranging a spiral tube b inside the covering or case the latter modification being
essentially designed for cases of thigh amputation.
Dated this 28th day of February 1899
TONGUE & BIRKBECK,
Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicants.
improvements in Artificial Legs.
We, NIELS FAARUP, Dock-labourer, of Elsinore, and POUL CHRISTENSEN,
Merchant, of 30, Holbergsgade, Copenhagen, Denmark, 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 mode of securing artificial legs has always the great inconvenience that
the artificial legs (which as a rule consist of a sort of covering or case which is
arranged around the lower part of the natural leg) must be secured in a very
inconvenient manner; greaves or rails and straps being led from the artificial
leg along the thigh and the said straps being secured around the waist or in a
similar manner and usually this is not only very uncomfortable but greatly
-interferes with the gait of the invalid..
When the leg has been amputated below-the-knee-it-has-been-customary to
place the knee in bent state in a kind of fork affixed to the upper end of the
artificial leg and this mode of securing such artificial leg by means of greaves or
rails along the thigh and by straps around the waist etc. has also been very
inconvenient.
The present invention is designed to obviate these inconveniences and is
illustrated in the drawings accompanying the Provisional Specification herein.
Referring to the said drawings left with the Provisional Specification in this
case:-
Fig. 1 shows a vertical section through an artificial leg, while Figs. 2 and 3
show modifications of same.
The artificial leg which is made as light as possible is secured by arranging
an annular air-chamber or tube inside thereof which air-chamber when the
leg-stump has been placed into the case is inflated from the outside for instance
through a valve c such as used in pneumatic tyres.
The air-chamber b when inflated will clasp round the natural leg and keep the
case on it no securing with straps being needed.
The artificial leg can very easily be secured in the herein-described manner
by inflating the tube; it can also be promptly removed by deflating said tube b.
The leg-stump may advantageously be placed in a rubber-stocking d consisting
of a bag of rubber the bottom of which does not reach the bottom of the leg
socket a and the upper part of which is provided with a thick rubber ring e
resting on the upper edge of the socket . Consequently the end of the natural
leg is not subjected to any pressure against a hard substance because it rests in
the suspended rubber bag d.
The modified form shown in Fig. 2 is secured by applying two annular air-
chambers or tubes 6; while Fig. 3 shows an artificial leg which is secured by
arranging a spiral tube between the leg socket a and the rubber bag d the
latter modification being, more especially designed for cases of thigh amputation.

page_text: Having now particularly described and ascertained the nature of this said
invention and in what manner the same is to be performed we declare that
what we claim is:-
1. The combination with and arrangement in an artificial leg of an annular
air-chamber or tube inside the said leg socket a intended to hold the leg of-the
user which chamber or tube can be inflated thus fitting closely around the leg-
stump and making any further securing unnecessary.
2. The combination with and arrangement in an artificial leg of the suspension
bag d inside the socket for receiving the natural leg into which bag the leg-
stump is kept in suspended state.
3. Artificial legs constructed and arranged to act substantially as and for the
purposes hereinbefore described with reference to the drawings.
TONGUE & BIRKBECK,
31, Southampton Buildings, Chancery Lane, London, W.C.
Agents for the Applicants.