AN IMPROVED SPRING MATTRESS
Year: 1884

page_text: PROVISIONAL SPECIFICATION,
I, JAMES KENDAL WILDER, of 115 St Vincent Street, Glasgow, in the County
of Lanark, North Britain, Cattle Dealer, do hereby declare the nature of my said
invention for AN IMPROVED SPRING MATTRESS to be as follows :-
This Invention which relates to an improved Spring Mattress, consists of two
rectangular frames hinged together at the centre but from which the fourth side,
or that which would occupy the central line of the two frames when so hinged, is
omitted. By this arrangement the two frames are capable of being folded upon
one another when the mattress is not in use, and unfolded or opened out when the
mattress is to be used.-Attached to the sides of the rectangular frames, aro inverted
spiral conical springs whose lower ends are also connected to a light metallic
rectangular frame, and parallel rows of such springs extend the whole distance
between the rectangular frames.-The lower part, that is to say, the smaller end of
each such spring being riveted or otherwise firmly attached to the lower frame
whilst their upper or larger ends are coupled together by chains or equivalent
links.
J. H. JOHNSON, DAY & JOHNSON,
Petitioner's Agents,
115, St. Vincent Street, Glasgow.

page_text: COMPLETE SPECIFICATION.
I, JAMES KENDAL WILDER, of 115 St. Vincent Street, Glasgow, in the County
of Lanark, North Britain, Cattle Dealer do hereby declare the nature of my said
invention for AN IMPROVED SPRING MATTRESS and in what manner the same is
- to be performed, to be particularly described and ascertained-in and by the following
statement:
My Invention, which relates to an improved spring mattress, consists of two
rectangular frames hinged together at the centre but from which the fourth side,
or that which would occupy the central line of the two frames when so hinged, is
omitted. By this arrangement the two frames are capable of being folded upon
one another when the mattress.is_not_in_usc,-and-unfolded-or-opened-out-when-the-
_mattress_is_to_be_used.-Attached-to-the-sides-of-the-rectangular-frames, are
inverted spiral conical springs whose lower ends are also connected to a light
metallic rectangular frame, and parallel rows of such springs extend the whole
distance between the rectangular frames.
The lower part, that is to say, the smaller end of each such spring being riveted
For-otherwise-firmly-attached-to-the-lower-frame whilst their upper or larger ends.
aro coupled together by chains or equivalent links:
In order that my said Invention may be most fully understood and readily
carried into effect, I will proceed to describe the drawings hereunto annexed
Figure 1, is a plan of a spring mattress constructed in accordance with my
present Invention and when in its extended or unfolded condition.
Figure 2, is a side elevation of the same.
Figure 3, is an end elevation of 'the same when in a folded condition, that is to
say, when not in usc.
It is seen with reference to the annexed drawings that my Invention, which
relates to an improved spring mattress, consists of two rectangular frames respec-
tively marked a, and b. Theso frames are hinged together at c, and d, between
which two points, the fourth side of each of the frames a, and b, or those sides
which would occupy the central line of the two frames when so hinged, are
omitted. By this arrangement the two frames a, and b, as shewn at Figure 3 of
the annexed drawings are capable of being folded upon one another when the
mattress is not in use, and unfolded or opened out as shewn at Figures 1 and 2,
when the mattress is required for uso. Attached to the sides and ends of the
rectangular frames a, and b, are the inverted spiral conical springs c, the positions
occupied by soine of which are indicated by the dotted lines f, at Figures 1 and 3
of the annexed drawings. The upper ends of these springs e, adjacent to the
frames a, and b, are secured thereto by means of the clips g, or by the equivalents
thereof, while the lower ends of the said springs aro riveted as shewn at h, or
otherwise suitably secured to the light metallic frames i, which are preferably of
rectangular and springy construction. The upper or larger ends of the springs e,
are all coupled together by means of short lengths of chain j, or other links, the
positions of some of which are indicated at Figure 1, by the dotted lines k.

page_text: This construction of mattress admits of it, when out of use, being doubled or
folded over into the position represented at Figure 3 of the annexed drawing, while
the coupling together by chains of the upper ends of the springs e, renders the whole
construction elastic.
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
The improvements in spring mattresses consisting of a frame of two parts a,
and b, hinged together and provided with the springs e, frames i, and chains j, all
combined substantially as and for the purposes hereinbefore set forth with reference
to the annexed drawings.