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Publication numberUS348782 A
Publication typeGrant
Publication dateSep 7, 1886
Publication numberUS 348782 A, US 348782A, US-A-348782, US348782 A, US348782A
InventorsFrancis A. Sawvnu
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Francis a
US 348782 A
Abstract  available in
Images(2)
Previous page
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Claims  available in
Description  (OCR text may contain errors)

www! AU 93 U #TMG XR 345,782

(No Model.) 2 Sheets-Sheet 1.

P. A. SAWYER.

RUBBER STEP 0R CARPET. No. 348,782. Patented Sept. 7, 1886.

runny/0011011012171,

WITNEEEEE- ipk/ENTER- MJBWQM., nj/

(No Model.) 2 Sheets-Sheet 2.

I'. A. SAWYBR.

RUBBER STEP 0B. CARPET.

No. 348,782. Patented Sept. 7, 1886.

I c' l x c' 1 I C J 1 l c' i l C I FTS. 5

f be a resilient surface.

U NIT no STATES PATENT (burnin),

RUBBER STEP OR CARPET.

l-FClfPl'I-'A'll'ON forming part of Letters Patent No. 348,782, dated September 7. 18936Y To all whom it may concern.-

Ie it known that l, hamers A. SAwvun, of loston, in the county ol' Hull'oik and State of' Massachusetts, a citizen of the llnitei l vStates, have invented anew and nscf'ul Improvement in .ltnbber Steps or Carpets, of' which the fol lowing;l isa full, clear, and exact description, reference bei ng had to the accompanyine,- drawings, f'orining'a part of' this sliecification, in explaining' its nature.

It is desirable in rubber steps, carpets7 and other like articles iliade of' rubber, adapted for use upon slcps, either stationary or of vehicles, or f'or use upon iloors, that the treading or upper surface ol1 said step or carpet should be so made as to lie flatly upon thc surface to which it is secured, and so remain unaffected by the influences ol' the weather. It is also desirable that the step or carpet be provided with means whereby it may be firmly fastened in place and held so fastened. lt is also essential that these elements be combined in the step or carpet in a cheap and du rablc form. The wearilig-surface of the step or carpet must For resi liency it is neccssary to use a fair grade ot" rubber stock, and

consequently it is desirable to use as little of this stock in the manufacture of the step or carpet as possible; consequently this better grade of stock is used for'the upper surface of the step or carpet; and l have ascertained that by forming this upper surface with projcctions, preferably in the form of short isolated knobs arranged closel y together, the stoel; is best disposed to resist wear, and vat the saine time provides the best forni of wearing-surlacc and requires the least amount of the best grade ol' stock. V

To give the steps stability, I use below the surfacing above described a layer of canvas, duck, gunnycloth, or other suitable fibrous material, and to the under surface of this scction there is secured a lower section of cheap rubber stock, or stock containing a considerable ainount of liber, which may be continuous in thickness or may be pancled, as hereinafter described.

Referring to the drawings, Figure l is a view in perspective of a carstep having the features of my invention. Fig. 2 is a cross-section of the ste a. Fie. Il is a ciosssection of the ste i,

Serial No, isfll?` (No modil'i representingl a modification and as applied to a car-step. Fig. A't is a cross-section illustratingl another inmlifiiiiution. Fig. 5 is a view inverted of' the step shown in VFile'. l. Fig. (i illustrates in plan a matm'ial used in the man uf'acture of' the step. Fig. 7 is a vertical sec tion of a step having said material employed or used in its construction.

rlhe continuous upper surface, a, ol` the step is made up of' a very thin layer or film of rub ber stock of goed quality, from which rise the projections, knobs, or protuberances a',ofstock ol' similar quality. rlhesc protnberances forni the wearing-surface ol' the tread or carpet. I) is the layer ol' canvas, duck, gunny-cloth, or other fibrous material, upon which the upper surface is vulcanized and united by pressure. To the under surface of this fibrous section is secured by pressure and vulcanization the base or lower section7 c, which is of rubber stock containing considerable fiber and lunch less resilient and less expensive than the surfacing ol' the tread or carpet. It may be ofuniforln thickness throughout; but for most uses it will be desirable to provide itwith pau cls c', as by so doing a saving in stock is obtained and the resiliency ol" thc mat or carpet increased. V\Vhen used for a carstep or any other exposed step, it will be desirable to form upon its under surface, slightly removed from the edge, a V-shapcd or rounded rib or projection, d, which is adapted lio enter a V- shaped or rounded recess, d', of corresponding,` size in the step-support, and act as a joint in preventing water, dirt, &c., from getting under the step,

It will be seen that asi-,ep or carpet niadcin this way has all its parts arranged to do special service and at the same time provide a cheap or economical construction. The principal surfacing of good stock arranged in the form of projections provides the best form of Wcaringsurface. The canvas, duck, or other fibrous material immediately beneath it gives the step strength and provides means whereby it can be fastened iirmly in place. The lower section. of" cheap vnlcanizablc stock gives sufficient thickness to the step and adds to its stability and protects the intermediate canvas section from moisture and otherde stroyiug influences. The intermeifliate fibrous luerton muy hure :L l'rietionsiii-lilou, or it muy be ol' eouruely or loosely woven nutterinl, in whiell (time the rubber will be by I'il'essure thoroughly ineorporutinl with its tllrezut' :tnd liber.

'lhe step or enrprt muy be lin-med or slumped in molder or b y rolling'.

lt will be seen tluit by providing the slop with the poneis e not only is lessi stoel: employed, but the resiliency ol' the Step is iuereusrul, ou the wem-ing,r proieetions :tre `not then supported by u continuous support, so tlurt :1 yielding (-fl'eet is obtained, not only duo to the resiliency ol' the proieetions, but :deo to the construction ol' the Siep.

Hoving thus inlly described my invention, l l eluim und desire to secure by Leiters lutent of the United States@ 1. ln rubber Steps, carpets, mul other like rubber goods, the combination of a Surliieing 0i' resilient stock arranged in the form of n thin film or body und projections, us described, nn intermediate fibrous section from which seid projections extend, und covered between the projections by the thin iilm or surfacing of rubber, und the lower or bese section of rubber or fibrous rubber stock, all substantially es described.

2. AS :tu improved :rrtiele ol' unnnll'ueture, the rubber Step or .utep uniteriul, rurpetine', or other like rubber goods, eomprisingg the surfacing ol' resilient rubber Stor-,k urrenged in the form ol' projeetions, the intermediair librouS seetion roni which the proieetions extend, :uni covered between the proieetions with :1. thin lilm or Surl'zieing ol' rubber, und the buse or lower ls'eetion ol' vulezmimbie fibrous Stoet", ull united by vulennizfition :md pressure, Substuntiully as described.

rial, or carpeting, ol` nurfzieing ol' resilient rubber Stock ori-:urged in the l'orln ol" proiee tions, the fibrous eentrul or intermediate section, and u. lower section ol' vuleunif/.uble fibrous stoel; having poneis in its under sur I'uee, all Substantially es described.

ll. The step or step materiel having a resit ient upper surface und u downwmdquojeeting narrow V-Shaped rib upon the under Snrfuee, near the outer edge thereof, substantially as described.

FRANCIS A... SA\V YER.

\VituesseS:

F. F. RAYMoND, 2d, FRED. B. DoLAN.

o. rlhe combination, in :L Step, step mnleH

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2680698 *Dec 3, 1949Jun 8, 1954Francis Schnee RobertPlastic floor coverings
US2996256 *Aug 29, 1952Aug 15, 1961Railroad Rubber Products IncTraction rail anchors
US3459400 *Dec 20, 1966Aug 5, 1969American Biltrite Rubber CoVibration damping pad
US3699926 *Oct 19, 1970Oct 24, 1972Rubber Ind Vasto NvFloor mat for animals
US3922409 *Jan 21, 1974Nov 25, 1975Stark ErwinFootmat
US4034525 *Sep 16, 1975Jul 12, 1977Seibun YokomoriStair structure
US4715743 *Jun 13, 1986Dec 29, 1987Schmanski Donald WFor areas of pedestrian traffic for providing direction and warning
US5456966 *Aug 11, 1994Oct 10, 1995Austin; John R.Antiskid floor mat
US6129402 *Jan 30, 1998Oct 10, 2000Vanliner Technologies Inc.Plastic floor liner for van or like vehicle with a central removable rubber panel flanked by ribbed side portions
US6378462 *May 4, 2000Apr 30, 2002Rolf C. Hagen, Inc.Cat massaging and grooming device
US6619558 *Nov 17, 2000Sep 16, 2003Bum Chae JungSupport for supporting rail of railway
US6681416 *Oct 14, 2002Jan 27, 2004Golden Pond Plastic Manufacturing Company Ltd.Soft bathroom mat and a method for producing the soft bathroom mat
US6878430 *Dec 22, 2000Apr 12, 2005Wolfgang MilewskiFloor covering of an elastically deformable material
US7674066 *Oct 25, 2005Mar 9, 2010Donald WehmeyerTactile tile product for the visually impaired, method of manufacture and methods of conducting business therewith
US8439596 *Aug 6, 2012May 14, 2013Joe DvoracekTextured tile system and installation method
US8535785 *Oct 30, 2009Sep 17, 2013Macneil Ip LlcFloor tile
US8640403 *Nov 28, 2012Feb 4, 2014Macneil Ip LlcFloor tile with elastomer jacketed bottom support members
US20110104434 *Oct 30, 2009May 5, 2011David F. MacNeilFloor tile
US20130071625 *Nov 28, 2012Mar 21, 2013Macneil Ip LlcFloor tile with elastomer jacketed bottom support members
USD158550 *Apr 18, 1949May 16, 1950The Wooster Rubber CoMat
Classifications
Cooperative ClassificationE04F15/10