Improvements in Mattresses and Bedstead Bottoms.
Year: 1890

page_text: Date of Application, 31st July, 1890-Accepted, 6th Sept., 1890
COMPLETE SPECIFICATION.
Improvements in Mattresses and Bedstead Bottoms.
I, JAMES MCDOUGALL of Hope Patent Tube Works Wednesbury in the County of
Stafford Manufacturer do hereby declare the nature of my said invention and in
what manner the same is to be performed to be particularly described & ascertained.
in & by the following statement:-
My invention has for its object improvements in mattresses & bedstead bottoms; by
which I am able to make them stronger, more compact, and more elegant in appearance
than heretofore.
I will explain my invention by referring to the accompanying drawings.
Figure 1, is a side elevation of bedstead & bottom or inattress combined..
Figure 2, is an end elevation of the same bedstead.
Figure 3, is a prospective view of one corner of the bedstead with the post A
removed from the bottom or mattress.
Figure 4, is a prospective view on smaller scale of a modification which makes my
invention suitable for use on on ordinary bedstead bottoms.
Figure 5 is a cross section of the sides & ends E which is an entirely new section &
important.
Figure 6, is a modification of Figure 5 as an illustration of the variations which
be produced without departure from my invention.
may
I do not claim any novelty for the posts A & A the dovetail blocks B as any design
or kind may be used.
I make my bedstead bottom or mattress by laying four tubes of metal in suitable
chills or moulds and then uniting the four together by casting such corner blocks as
the ones represented by the letter C the part c¹ being also in one piece with it though
it is possible to make the ends separate, the part c' being united to C by dovetail pieces
or in any other convenient manner. I may also cast a band c³ around the ends & I
cast to or fix two three or more studs c¹ over which the ends M of the mattress faco K
drops & these transmit the strain to the ends E. Referring now to Figures 5 & 6 it
will be seen that my sides are specially drawn into this somewhat pear shaped section
the hollow flange part e extending some distance to the main circle & I reserve to
myself liberty to vary this section as shewn at Figure 6 so as to make the part e
narrower or wider as the case may be. The end bar E upon which the direct pull
comes I have found best to place with the small part upwards whereas the sides E
I place with the large side on the top, but this may be varied according to the tensile
& compressive strengths of the metal to be used I use either side uppermost. This
narrow neck is a very convenient position for attaching the wire inesh or other
material forming the mattress or bed bottom surface & it may be done as shewn at .
Figure 4 by a number of springs R, screws & nuts E or screws may be attached to
the plates M at the ends for regulating the tension. I do not confine myself to any
mode in particular for tightening the surface. Figure 4 shews a mattress without the
dovetail piece c but instead of finishing with rounded corners & a foot c³ to rest upon
any ordinary bedstead frame. In the examples shewn by Figures 1, 2 & 3, it has
not been considered necessary to shew any tightening arrangement but such may be
applied without any difficulty. My special sections may be used by uniting them to forged
ends or in manner other than casting blocks upon them. I do not confine myself to
any particular height of bed bottom, or mattress as this may be greatly varied-
for instance, the side pieces E may run straight from the part C without any crank
or the crank may be the other way.

page_text: Having now particularly described & ascertained the nature of my said inven-
tion, & in what manner the same is to be performed I declare that what I
claim is :-
f
1st. The improvements in mattress & bedstead bottoins having four special tubes E
united together by four corner pieces .C.cast thereupon to which the wire mesh or
other surface may be attached substantially as herein set forth & shewn upon the
drawings.
2nd: In mattresses & bedstead' bottoms the use of the special sections of iron, steel
or other metal sides having the extending part c' & neck c²; substantially as herein
set forth & shewn upon the drawings.
1
1000
GEORGE BARKER,
77, Colmore Row, Birmingham, Agent for Applicant.