CARPET-LINING
Year: 1887

page_text: I, CHARLES H. COLE, of Little Rock in the County of Pulaski and State of
Arkansas U.S.A. Gentleman do hereby declare the nature of said invention for
CARPET-LINING and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
This invention relates to carpet linings provided with ridges, grooves and
perforations.
The present improvement consists, chiefly, in the combination, with an upper layer
having parallel ridges and grooves and provided with perforations in the latter, of a
lower layer having a corresponding set of ridges and grooves arranged transversely to
the former and perforations arranged alternately with respect to those therein, these
two layers together making up the carpet lining.
In the accompanying drawings, Figure 1 represents a plan view of the lining.
Fig. 2 represents a similar view of the lower layer, the upper one being removed.
Fig. 3 represents a section through the lining, on the line ac of Fig. 1. and Fig. 4
represents a section through the lining on the line y y of Fig. 1.
A designates the upper layer, provided with parallel ridges a, intermediate grooves a¹
and perforations a², the latter being at the bottom of the grooves. In each row these
perforations are arranged alternately with respect to the next row.
B designates the under layer of the lining, having ridges b, grooves b' and perfora-
tions 62, the said ridges and grooves being arranged at right angles to those in the
upper layer, so that the one set of ridges will run directly across the other. The
perforations 63 are arranged alternately with respect to the perforations a³, so that
each perforation a³ or b³ will be opposite a solid part of the other layer.
The material of the lining is preferably paper, though any other material of similar
characteristics might be used. It needs no filling, the double series of ridges a and b
affording abundant protection to the carpet, and yielding easily under pressure without
allowing unnecessary noise or wear. The dust which works down through the carpet
passes through holes a² to the space between the layers A and B, and thence through
holes 62 to the floor. Now, if a single lining with perforations were used, every step
would bring back the.dust to the carpet; but when the pressure forces the dust up

page_text: through holes it is still opposed by the solid part of layer A, and will sift back
again through holes 2 instead of reaching the carpet. Thus the dust is allowed to
pass through the carpet and lining to the floor, and caused to stay there. This
obviously increases the durability of the carpet by lessening its liability to rot and to
be worn. In addition thereto it keeps the carpet clean and attractive in appearance,
and the air will at all times be much freer from dust.
Having thus described my invention, what I claim as new, and desire to secure by
Letters patent, is-
1st. A carpet lining consisting of two layers, each layer being provided with a
series of ridges and intermediate grooves arranged transversely with respect to the
ridges and grooves of the other layer.
2nd. A carpet lining consisting of two layers, each being provided with parallel
ridges and perforations, the ridges of one layer being transverse to those of another,
and the perforations arranged alternately, substantially as set forth.
3rd. A carpet lining consisting of layers A and B, the former being provided with
ridges a, grooves a¹, and perforations a³, and the latter with ridges b, grooves b', and
perforations 62, the ridges and grooves of one layer crossing those of the other, and
the perforations of one layer being opposite the solid part of the other, substantially
as set forth.
Dated this 2nd day of September A.D. 1887.