IMPROVEMENTS IN WIRE SPRING MATTRESSES FOR ADJUSTING THE TENSION OF THE ELASTIC SURFACE THEREOF
Year: 1885

page_text: We JAMES RIGG COLLIER, Metal Merchant and DYER STEAD MUSGRAVE Wire
Worker both of Sharp Street Manchester in the County of Lancaster, do hereby
declare the nature of our invention of "IMPROVEMENTS IN WIRE SPRING MATTRESSES
FOR ADJUSTING THE TENSION OF THE ELASTIC SURFACE THEREOF," and in what
manner the same is to be performed to be particularly described and ascertained in
and by the following statement :-
This invention refers particularly to that class of wire spring mattresses con-
structed in accordance with the Specification of Letters Patent No 6651 granted
to us on the 22nd day of April 1884 but is equally applicable to other classes of
woven wire and other wire mattresses which require to be distended upon a
framework or bedstead. Now this invention consists of a simple arrangement of
mechanism applied to the wooden or other frame work of the mattress whereby
the elastic surface affixed by one of its extremities to such roller can be distended
to any desired extent and whereby any slackness produced in the same can be
remedied and taken up and the adjusting of the tension can be effected from time
to time without having recourse to skilled labour.
On the accompanying drawing Fig 1 represents a front view of our improved
roller shewn broken and supporting brackets Fig 2. is a front or outside view and
Fig 3 a back or inside view of our improved bracket or fixing containing the
distending and adjusting mechanism.
In all the views A is the wooden or other roller mounted at each of its extre-
mities in a bracket B by preference of cast iron as illustrated--These brackets
being affixed to the sides of the wooden or other framework of the bedstead or
mattress, by the bolt and nut B¹. The roller A bas affixed at one of its extremities
a worm wheel G seen dotted in Fig I which in turn is supported upon the set
screw H passing through the bracket B.
Into this worn wheel G gears the worm I mounted upon the spindle J and
secured in position thereupon by the set-screw K. The extremity of the spindle
projecting through the bracket and being there formed with a square L to enable
a small ordinary screw-key to be applied to actuate the worm as hereinafter
described.

page_text: It will now be obvious that if this improved roller and brackets were applied to
an ordinary bed-stead or to the frame of a mattress and one end of a wire spring
mattress for instance the elastic surface forming the subject matter of Letters
Patent granted to us as aforesaid or any other woven wire or other wire elastic
surface were screwed or affixed in any other way to the roller A and the other
extremity of the same elastic surface were affixed for instance at the foot of the
bedstead or to the foot of the frame-that it will only be necessary to impart
a revolution or portion of a revolution to the roller A to obtain the desired tension
of the elastic surface. This is most readily effected by a screw-key applied to the
square L upon the worm spindle J and by turning the same until the requisite
tension is produced-or a winch handle may be employed for the purpose.
Having thus particularly described and ascertained the nature of this our said
invention and in what manner the same is to be performed, we declare that what
we claim is
The use and application of a roller and worm and worm wheel to the frame of
a spring mattress or bed-stead substantially as and for the purpose hereinbefore
described and illustrated on the accompanying drawing.