Improvements applicable to Spring Mattresses.
Year: 1893

page_text: Date of Application, 9th Nov., 1893
Complete Specification Left, 7th Aug., 1894-Accepted, 8th Sept.,
1894
PROVISIONAL SPECIFICATION.
Improvements applicable to Spring Mattresses.
We, JOHN EDGAR, GRAHAM CRERAR, and JAMES EDGAR, all of 18 Glassford
Street, in the County of Lanark, North Britain, Spring Mattress Manufacturers,
do hereby declare the nature of this invention to be as follows, that is to say :-
This invention has for its object to improve the mode of supporting parts of a
spring mattress, in a manner to increase its general clasticity.
In carrying out this invention according to one modification a wire web is
stretched, in a usual manner, upon a frame, and is supported by a number of helical
or other compression springs carried by cross bars which have hitherto been fixed
to the frame of the mattress. According to the present invention however the
cross bars bearing the springs are attached thereto by means of two or more tension
springs at each end, either intercoiled or separate, suspending the bars and thereby
imparting increased elasticity to the mattress.
The suspending of bars or parts bearing compression springs by tension springs
is applicable to spring mattresses variously constructed as regards their other
parts.
1
... 1
CN 1002
EDMUND HUNT,
Applicants' Agent.
COMPLETE SPECIFICATION.
Improvements applicable to Spring Mattresses.
We, JOHN EDGAR, GRAHAM CRERAR, and JAMES EDGAR, all of 18 Glassford
Street, in the County of the City of Glasgow, North Britain, Spring Mattress
Manufacturers, 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, that is to say :-
This invention has for its object to improve the mode of supporting parts of a
spring mattress, in a manner to increase its general elasticity.
In carrying out this invention according to one modification, a wire web is
stretched, in a usual manner, upon a frame, and is supported by a number of
helical or other compression springs, carried by cross bars which have hitherto
been fixed to the frame of the mattress. According to the present invention
however, the cross bars bearing the springs are attached thereto by means of two
or more tension springs at each end, either intercoiled or separate, suspending the
bars and thereby imparting increased elasticity to the mattress.
And in order that our said invention and the manner of performing the same
may be properly understood, we hereunto append a sheet of explanatory drawings,
to be hereinafter referred to, and showing a spring mattress as made with our
improvements.
Figure, 1, of the drawings is a plan of the improved mattress, with the wire web
partly broken away and a few details, of ordinary construction, omitted for the
sake of clearness.
Figure, 2, is a longitudinal vertical section of the mattress with some details
omitted.
Figure, 3, is a transverse vertical section of the frame, showing only the improved

page_text: method of attaching the cross bars to the frame, and omitting other details.
Figure, 3, is drawn to a larger scale than Figures, 1, and, 2.
In these drawings the same reference letters are used to mark the same or like parts
wherever they are repeated.
As shown in the drawings a wire web, A, is stretched, in a usual manner, upon
a frame, B, and is supported by a number of helical springs, C, carried by cross
bars, D, which are attached to the frame by two tension springs, E, at each end,
so as to suspend the bars and impart increased elasticity to the mattress. The
springs, E, may be connected to the cross bars, D, and to the frame, B, by means
of staples, or other convenient appliance; we however prefer to fix across the
end of each bar, D, a metal strap or plate made with hooks at its ends to hook
into the lower ends of the springs, E.
The suspending of bars, or parts, bearing compression springs, by tension
springs is applicable to spring mattresses variously constructed as regards their
other parts.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what we
claim is :-
In a spring mattress, suspending the cross bars, or parts carrying the compression
springs, from the mattress frame by tension springs substantially as and for the
purposes herein before described.
הנמ
2
100
EDMUND HUNT,
Applicants' Agent.