Year: 1893

page_text: Date of Application, 10th Oct., 1893
Complete Specification Left, 28th May, 1894-Accepted, 30th June, 1894
I, SIEGMUND SELIGMANN of 100 Vahrenwalderstrasse, Hanover in the Empire
of Germany, Director do hereby declare the nature of this invention to be as
follows:-
In seat cushions, more particularly those for bicycle saddles, the need is
experienced of mitigating their hardness such for instance as is inherent in the
leather saddle and yet without thereby diminishing the spring of the leather saddle
and of the frame beneath it.
The felt covers hitherto employed are not of themselves elastic enough and
become so flattened or pressed down after a short period of use that they lose all
elasticity and do not fulfil their object as spring cushions.
Ordinary air cushions such as are used for other purposes also do not meet the
foregoing requirements, because the air with which they are inflated very easily
escapes if for instance the cushion gets damaged, or the valve, which is indispensable
in such cushions, gets out of order or becomes leaky.
In this improved seat cushion, less hardness than exists with leather saddles and
yet an equal or even increased springiness is obtained by arranging in or fitting the
cushion with fillings or insertions of tube- or rod-ends of elastic material such as
indiarubber, lying besides one another, in certain cases in combination with other
yielding substances, such as seaweed, wadding and horse hair, so that on the
pressure ceasing the cushion will automatically resume its shape by reason of the
elasticity of the tube or rod ends.
In one form of cushion, the tube ends of suitable lengths are laid close side by
side across the longitudinal direction of the cushion, and these ends are enclosed
like a frame by adjacent tube ends running round and following the contour of the
cushion. The two sets of tube ends which consist of some elastic material such as
indiarubber are enclosed in a case or covering which consists of an upper and lower
layer of watertight material. The edges of the case or covering which project
beyond the fillings or insertions are stuck together by means of some adhesive
substance which is insoluble in water, such for instance as indiarubber solution,
under the application of pressure, so that the tube ends are enclosed in such a way
that on the one hand too great a displacement under pressure does not take place,
and on the other the escape of the imprisoned air is also prevented.
In a further variety, the tube ends of elastic material such as indiarubber are
again arranged close side by side across the longitudinal direction of the cushion.
The tube ends enclosing them however are not used. The tube filling or insertion
has however another covering layer of other yielding material such as seaweed,
wadding or horse hair. The whole is enclosed in a case or covering formed of
upper and lower layers of waterproof material which are united at the edges in the
manner hereinbefore described.
It will be understood that the tube ends might be replaced by rod ends of elastic
material such as indiarubber. This filling or insertion is also enclosed with
waterproof material.
A cushion constructed in this manner is to be recommended where great elasticity
is required for the cushion with a lesser degree of softness.
The separate tube or rod ends of the cushion herein before described impart to
the same a great elasticity which remains even if the cushion be considerably
damaged, as the tube or rod ends by reason of their elasticity again resume their
shape when the pressure on the cushion ceases. A cushion made according to this

page_text: invention has the further great advantage of simplicity, as it never requires to be
inflated but remains permanently elastic.
Dated this 9th day of October 1893.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Patent Agents for the Applicant.
COMPLETE SPECIFICATION.
Improved Seat Cushion.
I, SIEGMUND SELIGMANN of 100 Vahrenwalderstrasse, Hanover in the Empire
of Germany, Director, 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 :-
In seat cushions, more particularly those for bicycle saddles, the need is
experienced of mitigating their hardness, such for instance as is inherent in the
leather saddle and yet without thereby diminishing the spring of the leather saddle
and of the frame beneath it.
The felt covers hitherto employed are not of themselves elastic enough and
become so flattened or pressed down after a short period of use that they lose all
elasticity and do not fulfil their object as spring cushions.
.
Ordinary air cushions such as are used for other purposes also do not meet the
foregoing requirements, because the air with which they are inflated very easily
escapes, if for instance the cushion gets damaged, or the valve, which is indispensable
in such cushions, gets out of order or becomes leaky.
In this improved seat cushion less hardness than exists with leather saddles and
yet an equal or even increased springiness is obtained by arranging in or fitting the
cushion with fillings or insertions of tube- or rod-ends of elastic material such as
indiarubber, lying besides one another, in certain cases in combination with other
yielding substances, such as seaweed, wadding and horse hair, so that on the
pressure ceasing the cushion will automatically resume its shape by reason of the
elasticity of the tube or rod ends.
On the accompanying drawing
Figure 1 shows a plan view of a cushion
Figure 2 a longitudinal section and
Figure 3 a cross section on the line 1-2 of Figure 1.
In this form of cushion, tube ends a of suitable lengths are laid close side by side
across the longitudinal direction of the cushion, and these ends a are enclosed like a
frame by adjacent tube ends b running round and following the contour of the
cushion. The two sets of tube ends a and b which consist of some elastic material
such as indiarubber are enclosed in a case or covering which consists of an upper
and lower layered of watertight material. The edges of the case or covering c d
which project beyond the fillings or insertions are stuck together by means of some
adhesive substance which is insoluble in water, such for instance as indiarubber
solution, under the application of pressure, so that the tube ends a and b are
enclosed in such a way that on the one hand too great a displacement under
pressure does not take place, and on the other the escape of the imprisoned air is
also prevented.
Figure 4 shows an under view and Figure 5 a longitudinal section of a further
variety in which tube ends a of elastic material such as indiarubber are again
arranged close side by side across the longitudinal direction of the cushion. The
tube ends b enclosing them however are not used. The tube filling or insertion has
however another covering layer e of other yielding material such as seaweed,
wadding or horse hair. The whole is enclosed in a case or covering formed of
upper and lower layers c d of waterproof material which are united at the edges in
the manner herein before described.

page_text: Figure 6 shows a longitudinal section of a cushion in which the tube ends a are
replaced by rod ends a of elastic material such as indiarubber. This filling or
insertion is also enclosed with waterproof material c d.
A cushion constructed in this manner is to be recommended where great elasticity
is required for the cushion with a lesser degree of softness.
The separate tube or rod ends of the cushion hereinbefore described impart to.
the same a great elasticity which remains even if the cushion be considerably
damaged, as the tube or rod ends by reason of their elasticity again resume their
shape when the pressure on the cushion ceases. A cushion made according to this
invention has the further great advantage of simplicity as it never requires to be
inflated but remains permanently elastic.
Having now particularly described and ascertained the nature of my said inven-.
tion and in what manner the same is to be performed, I declare that what I
claim is :-
A seat cushion in which tube or rod ends of elastic material such as indiarubber.
are arranged as an insertion or filling close side by side, in certain cases in
combination with a covering layer of other yielding substances, enclosed in a
waterproof case or covering (cd) with the object of insuring on the cessation of
the pressure an automatic resumption of its shape by the cushion in consequence of
the elasticity of the tube or rod ends assisted by the elasticity of the air enclosed
by the case or covering, substantially as hereinbefore described and shown on the-
accompanying drawing.
Dated this 26th day of May 1894.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant..