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Publication numberUS1674713 A
Publication typeGrant
Publication dateJun 26, 1928
Filing dateMar 21, 1927
Priority dateMar 21, 1927
Publication numberUS 1674713 A, US 1674713A, US-A-1674713, US1674713 A, US1674713A
InventorsBrooks George W
Original AssigneeBrooks George W
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Nonskid metal covering for stair treads, thresholds, and the like
US 1674713 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

June 26, 1928. 1,674,713

G. w. BROOKS NONSKID METAL COVERING FOR STAIR TREADS, THRESHOLDS, AND THE LIKE Filed March 21, 1927 I N VEN TOR.

A TTORNEY.

Patented June 26, 1928. I i

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.Application fileid March'21, 1927. Serial mime. I

My invention relateslto' non-skid metal covering for stair treads.

Theobject ofmy'inventlon is to provide a nonskid metal covering consisting of" a plate having a plurality; of dove-tailed grooves on the face thereof, the grooves being in close proximit to each other.

A further object 0 my invention is'to provide a non-skid metalcovering that 1s easily bent to conform to the nosingv of the tread having the non-skid feature extending therearound.

A still further object-of my invention is p to provide a nosing for the tread having the dove-tailed grooves on the convex side, and

' means to, attach the nosing to the tread by a member engaging on the face thereof, and means on the nosing to receive the edge of a flexible or rigid facing for the tread.

These and other objects will hereinafter be more fullyexplained.

Referring to the drawings: I Fig.1 is a sectional detailed view ofthe covering applied to a marble stairway.

Fig. 2 is a sectional detailed view showin the covering appliedto a wood stairway.

Tig. 3 is a sectional detailed view of the covering applied tothe nosing of the tread.

The attaching means for the plate .to

wood, marble or metal treads may be done varlous ways, such as uslng dowels, screws or nails (thesaid means not being shown in the drawings).

One of the particular features that I wish to emphasize is that the grooves extend longitudinally with the tread, and being so positioned the metal will bend more easily around the nosing as shown in Figs. 1 and 2. However a 'nosing'may be. prepared as shown in Fig. 3 hereinafter described. The object of dove-tailing the grooves is that the edgesas at 5 are kept sharp by wearing the metal away fromvthe face as at 6, and also being dovetailed is a means that when the sole of the shoe is pressed thereon it will en-' gage tightly between the edges preventing the possibility of slipping. Where the edges occur on the nosing as shown in Figs. 1, 2 and 3, and particularly illustrated in Fig. 3, the edge will cling firmly to the sole of the shoe, should the pedestrian fail to properly reach the tread, that is to say, the toe of the shoe 6 barely engages on the nosing, at a which time the edge will imbed in the sole of the shoe supporting the foot firmly, therefore the edgesb ein placed rendstoe1iminate'serious.jaccidents Whether going upaor,

down thestairs, andthe-possibility of slip ping from the slanting; sides ;of-.:-thresholds{ i's-r eliminated. ,=,j- 1 v. v I

In F 1g. 3 1s shown a segmental plate 7 having dovetailed grooves on the convex side tread 9 of the stair. The said web member is spaced from the upper edge as at A of the snugly to engagement on the plane ofthe web member 8, and also preventing anflout ward movement thereof.

The covering herein described is preferably made of brass for the better appearance, and also that it will bend easily, and the sharp edges of the dovetailed members are not easily broken, however aluminum will A function in a similar way, other' metal may be employed without departing from the spirit of my invention.

Such modifications may be employed to conform to the different uses that the covering may be adapted to.

Having thus described my invention, what I claim as new and desire to secure by Let- I ters Patent is -1. In a non-skid metalcovering for stair treads, a plurality of dove-tailed or undercut grooves extending part way through a metal sheet, said dove-tailed grooves longitudinally ositioned and in close proximity to each 0t er and having a bend on one side of the metal covering to conform to the nosing of a stair tread, whereby the edges of the groove will abruptly protrude, substan: tially as. shown, the edges being kept sharp by the wear imposed thereon.

2. Ina non-skid metal covering for stair treads, a plurality of dove-tailed or undercut grooves extending part way through the metal covering, said dove-tailed grooves lon gitudinally positioned and in close proximity to each other, and being so positioned that' the edges formed by the undercut will be sharpened by wearing of the metal between the edges at the outer surface, for the purpose described.

3. In a non-skid metal covering for stair treads, a plurality of dovetailed or undercut grooves extending part way through the metal covering, said dove-tailed grooves being longitudinally positioned with the covering and in close proximity to each other, the edges automatically sharpened as the metal is worn away between the grooves, a curved portion of the structure of suflicient width to function as a covering for the curvature of a stair tread nosing.

4-. In a non-skid metal covering for stair treads, a plurality of dovetailed or underout grooves extending partway through the metal covering, said dovetailed grooves longitudinally positioned with the covering and in close proximity to each other, the groovesbeing unfilled so that the outer edges formed thereby will function as a grippingineans for the sole of a shoe or other structure compressed thereonythe edges being sharpened by reason of the undercut oi? the groove formation and the wearing ofthe metal from the space between the grooves. V

In testimony whereof I affix my signature.

GEORGE w. BROOKS.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3000021 *Aug 21, 1958Sep 19, 1961Charles LangCombination boat fender and boat step
US3499254 *Dec 1, 1967Mar 10, 1970Reynolds Metals CoStep construction
US4203611 *Jul 10, 1978May 20, 1980J-Mark, Inc.Running board for light trucks
US4557494 *Dec 12, 1983Dec 10, 1985Dee Zee ManufacturingRunning board
US7823332 *Sep 13, 2007Nov 2, 2010Cynthia SiegelReusable stair cover
US8033063 *May 28, 2009Oct 11, 2011Yong Hwan WonStair system
US9121185 *Jun 19, 2013Sep 1, 2015Gilles GrenierPrefabricated staircase and finishing arrangement and installation method therefor
US9593489 *Apr 28, 2016Mar 14, 2017Progressive Safety Solutions, LLCTread for steel-pan stairways
US20080066389 *Sep 13, 2007Mar 20, 2008Cynthia SiegelReusable stair cover
US20090235594 *May 28, 2009Sep 24, 2009Yong Hwan WonStair system
US20100319278 *Jun 18, 2010Dec 23, 2010Gilles GrenierPrefabricated staircase and finishing arrangement and installation method therefor
US20140373462 *Jun 19, 2013Dec 25, 2014Gilles GrenierPrefabricated staircase and finishing arrangement and installation method therefor
DE1195926B *Feb 7, 1961Jul 1, 1965Herbert EnderStufenkanten-Schutzleiste
Classifications
U.S. Classification52/179, 15/215, 280/169
International ClassificationE04F11/02, E04F11/16
Cooperative ClassificationE04F11/16, E04F11/163
European ClassificationE04F11/16B, E04F11/16