Improvements in and relating to Mattresses, Pillows, Cushions, and the like.
Year: 1899

page_text: Date of Application, 24th Aug., 1899-Accepted, 30th Sept.,
1859
COMPLETE SPECIFICATION.
Improvements in and relating to Mattresses, Pillows, Cushions,
and the like.
We, HARRY ORVILLE SWARTZWELDER, Miller, of Chaneyville, and DANIEL
HOWARD SWARTZWELDER, Gentleman, of Charlesville, in the County of Bedford
and the State of Pennsylvania, of the United States of America, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
The purpose of this invention is to provide a support, such as a mattress, seat,
pillow, cushion, rest or upholstering, which will be light, easily regulable to
the weight to be imposed thereon, capable of being packed in a small space,
and which particularly well adapted for out-door life, either for the soldier
or for the sportsman, as it precludes the transmission of dampness when placed
on the ground and can be reduced to a small package and is exceedingly light.
For a full description of the invention and the merits thereof and also to
acquire a knowledge of the details of construction of the means for effecting the
result, reference is to be had to the following description and the drawings hereto
attached.
While the essential and characteristic features of the invention are necessarily
susceptible of modification, still the preferred embodiment of the invention is
illustrated in the accompanying drawings in which:-
Fig. 1 is a perspective view of a mattress constructed in accordance with the
principles of the invention.
Fig. 2 is a plan view of the inflatable coil.
Fig. 3 is a detail section at right angles to the length of the elements of the coil.
Corresponding and like parts are referred to in the following description and
indicated in all the views of the drawings by the same reference characters.
The device comprises an inflatable coil 1 and a covering 2, the latter forming
a case into which the coil is placed.
The coil is composed of a tube 3 of rubber and a sheath or outer tube 4 of
textile to strengthen the inner tube and prevent over expansion thereof when
inflating. The tube 3 has a valved stem 5 for attachment therewith of an air
pump or inflating device. This tube is bent into a series of folds which lie in the
same plane in parallel relation and which are held in fixed relation by warp
connections 6, preferably of tape. The woof elements are spaced apart a slight
distance and correspond to the folds or return portions of the tube.
The number of warp connections will depend in a great measure upon the
length of the woof elements and will be disposed at intermediate and extreme
points so as to hold the woof elements or folds together. The warp connections 6
cross between each two folds and are intertwisted or knotted, the latter being in
the form of a simple overhand knot, as shown at 7. By thus crossing and
connecting the warp connections the relative positions of the folds of the tube
are fixed.
When deflated the device can be rolled into a small bundle so as to be con-

page_text: veniently stored, packed or handled. When required for use it is only necessary
to inflate the tube, the degree of inflation controlling the softness and yield-
ability of the mattress, or other rest to which the invention may be adapted.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, we declare that what we
claim is:
1-A device of the character described comprising an inflatable coil, and a
casing therefor, substantially as set forth.
2-A device of the character set forth consisting of a tube formed into a coil
and adapted to be inflated, warp connections joining the folds at their ends and
intermediate points, and a casing receiving the coil, substantially as specified.
3A device of the class specified, consisting of a coil adapted to be inflated,
warp connections joining the folds and connected between each two adjacent
members of the folds, and a casing receiving the coil, substantially as described.
4-The herein described rest, consisting of an inflatable tube enclosed within
an outer tube, the two tubes formed into a coil, warp connections securing the
coils at their ends and intermediate points and crossing and knotted between
each two adjacent coils, and a casing enclosing the coil, substantially as described.
Dated this 24th day of August 1899.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.