US105661A - Nelson edwa - Google Patents

Description

NyBDW-ARDS.- CARPET UNDERLIB.

No. 105,661. y Patented L111151661870.

` otherwise be; and

" NELSON-EDWARDS, or J-ERICHQ, VEBMON'L.. l

Laan-3 Pam: No. 105,661, ama .my 26,1810..

:rimuove-Maur m cmn'r "uNnnnLm" The Schedule referred to in than 4Lettori vPotent and making par?. of the lama.

To `all whom it mag/camera:

Be it known (that I, NELSON EDWARDB, of Jericho,l

in the county of, Chittenden and 'State of Vermont, have invented a-new and useful Improvement in Car f pet Underlies; and I dc .hereby declarethat the following is a full, clear, and exact description' jthereof, which 4will enable others skilled in the art to make A, and use thesame, reference being had to` the' accompanyngdrawing forling part of this specica? "Wtiom lhe object of this inventionis to provide ecient means for preventing the rise of dust From'carpets ln sweeping or walking on them, and also for protecting the carpet, and rendering it more durable than it would It consists in an elastic'underlie ot' cellular construe `tion, provided with self-closing slits or oriices, ar-

ranged and operating as hereinafter. more fully de-V z scribed.

In the accompanying dlawngl Figure 1 represents `a section ofthennderlie as it appears en the door, the carpet being broken away.

Figure 2shows the under or reverse side of the underlie.

v Figure 3 is a cross -or vertical section of jig. 2 on `the line a: x. l

Similar letters of yreferenceindicate corresponding parts. l v u Y" A is the underlieI upon which the carpet is placed. 'B is the carpet. j

The underlie is'formed of Indie rubber, (either in whole or in part,) or of some other elastic substance V,or material, in a mold, so that cells may be formed in each side, and be separated by a thin diaphragm. C represents thepcell's infthe npperside, and .Dthe'cells in the under side. These cells are separatednear the middle ofthe underlie by a'thn diaphragm, seen in g.3, but

-which diaphragm is cnt or slit through at the bottom of the upper cells, as seen at e.

TheI cells are opposite cach other, as seen in the drawing.

The'upper cells are separate and distinctfrom each other, but the cells in the under side 4are connected 'together by recesses, f, (see fig. 3)

.lhe dust and dirt which work throughthe carpet are received in the cells G.

In walking over thecarpet, the pressure of the foot will, owing tot-he elasticity of the underlie, force the air and dirt contained in those cells, through the slits e, into the lower cells. When the pressure ou the carpet ceases, the slits close-from the elasticity ot' the material, thus confining the dust and dirt upon the surface -of `the floonj Th`f advantages of this description `oi underlie are- The dirt andy dustarer disposed of,and prevented Y `froxnrisng in the apartment and contaminating the atmosphere.

lhe vcarpet is not worn by grinding the dirt beneath it on the floor, and its elasticity gives the carpet a soft and pleasant tread.

Y Having thus describcd'my invention,

I- clailn as new and desireto .secure by Letters v `An-elastic carpet underlie with cells -or recesses injts' sides, (which are connected together by self-closing sli,ts,) and operating subst-antiallyas herein shown and described, for the purposes set forth. A

. NELSON EDWARDS.

Witnesses WILLIAM Gmswoma,

Images