Improvements in Apparatus for Tightening Bed-bottoms and; Mattresses.
Year: 1889

page_text: Date of Application, 25th Oct., 1889-Accepted, 30th Nov., 1889
COMPLETE SPECIFICATION.
Improvements in Apparatus for Tightening Bed-bottoms and;
Mattresses.
JOSEPH EDWIN TOWNSHEND, of St. James Street in the City of Montreal,
District of Montreal, Province of Quebec, Canada, Manufacturer, 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:-
This Invention has reference to the construction and arrangement of an apparatus
for tightening bed-bottoms or mattresses, and although suitable for tightening all kinds
of mattresses and bed-bottoms, yet it is more particularly adapted for use with those
formed out of woven or curled metallic wire because these last by their particular con-
struction and the manner in which they support the weight placed upon them are
continually slacking or lengthening and therefore often require to be tightened.
In the drawings hereunto annexed, similar letters of reference indicate like parts;
and figure 1 is a side elevation of an apparatus embodying my invention. Figure 2
is a plan of the apparatus_shewn in figure 1. Figure 3 is a detail of construction of
the screw-threaded bolts E.
A are two longitudinals and B a cross-piece which form part of a rack of proper
length and breadth for the bedstead within which the rack will be placed; these said
parts are strongly united together in any ordinary manner. C is a slide-block moving
upon the longitudinals A, actuated by screw-bolts E and nuts D; the nuts being either
sunk into, or formed in the openings in, the slide-block C through which the bolts E
pass, or else separate from the slide block (as shewn) in which case checks are formed
on the slide block to prevent them from turning round when the bolts E are rotated.
The bolt heads F are provided with ordinary bearing surfaces to press upon the knees H
but in this case they are formed integral with the levers G so that they are provided
with the necessary levers by which they may be operated without having to provide
separate appliances for that purpose. This is considered an important feature in the
present invention, as it gives very great convenience when tightening up by the
screws E is often required. The mattress or bed-bottom K is secured in any desired
manner to the cross-pieces B and slide block C as shewn, this is done by clamping
strips L.
In figure 2, the mattress or bed-bottom is omitted, as it does not form any
part of the invention and would only obstruct the view given in this figure. The space
from the knees H to the strips L of the slide block may be filled up by laths laid
across over the screws E but as the mattress, etc., stretches, this space will become less
until by degrees it no longer exists.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
I claim is;
1. The combination of the longitudinals A, having knees H, cross-pieces B; sliding
block C, having nuts D; screw-threaded bolts E having levers G, the whole sub-
stantially as shewn and described.
2. The novel construction and arrangement of the tightening screw-threaded
bolts E, having levers G, made integral therewith substantially as and for the purpose
described.
Babad th: DELL
1000
J. E. TOWNSHEND.
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.