US1629750A - Road strip - Google Patents

Description

May 24, 1927.

G. L. WELLER ROAD STRIP y Filed Sept. 19. 1925 Patented May 24, 1927.

1,629,750 PATENTA OFFICE.

GEORGE L. WELLR, 0F CHICAGO, ILLINOIS, ASSIGNOR TO KALMAN STEEL COMPANY,

OF CHICAGO, ILLINOIS, A CORPORATION 0F DELAWARE.

Roan stuur.

. f Application led September 19, 1925. Serial No. 57,311.

My invention relates to, metal strips adapted to be imbedded 'in a concrete roadway for the purpose of providing an expansion joint, and particularly to a novel end connection for use in connection therewith.

It is customary in the construction of such `strips to provide a longitudinal channel therein, intermediate the top and bottom;v

and at the point of junction of two strips to 'overlap the same and pass a fastening pinl through theu interiitting channels. This,

`however, has the objection that the strip is not of' uniformthickness continuously and involves difficulties in connection with the formation of the groove provided at the wearing surface of the'road at a point immediately above the upper margin of the strlp.

. In order to obviate the described diiiiculties, I have provided a construction in which the body portions of the strips may remain in correct ali ment and in which the same facilities as eretofore employed may be used for joining the adjacent ends of the strips.

To that end I extend the channel portion of the strip at one end andv off-set the extended portion'to the extent of the thick-V ness of the metal, so that the extended'portion of one strip may lit within the channel of an aligned strip.- In this manner Iam able to secure all ythe advantages of an overlapped strip as well as the advantages inci- "dent to a construction in which the ends of the strip are abutted.

The invention will be more readily understood by reference to the accompanying drawings, in which;

Fig. 1 is a transverse sectionall view through a roadway in which the strip of my invention hasv been installed.

Fig. 2 is a sectional view on the line 2-2 f of Flg. 1;

Fig. 3 is a perspective view. of a pair of strips constructed l'in accordance with my invention, and j f i Fig. 4 is a fragmentary perspective view l of a slightly modified form.

In the drawings, it will be seen that Ihave illustrated a roadway, 10, composed of con# crete, an expansion joint being provided by the use of the strip of my invention. This strip as best shown in Fig. 3, comprises upper and lower marginal or`body portions, 11, 12, respectively` and an intermediate V' shaped laterally olf-set channel portion, l13,

extending longitudinally of the strip. At one end the channel portionis extended as at 14, and the extended portion is laterally off-set as at 15, to the extent of the thickness of the metal. The extended portion has vertically aligned apertures, 16, 4registering with similar apertures in the opposite end of a cro-operating' strip in order to accommodate a pin, 17, shown in Fig. 1. Horizontal bars, 18, pass through the strip in the usual. manner. In assembling, the strips are placed end to vend with the marginal portions, 11, l2, in abutting engagement, the extended portions, 14, of the strips entering the channels and interfitting closely therewith. The top margins of the strip arebelow the finished level of the concrete, and when or after the concrete is cast, a groove is provided immediately above the strip which groove issubsequently lled with tar, 19, or similar man teria cev In the constructionl shown in Fig. 4, the i strip is identical except that the .extended portion is formed by providing a. separate, short section, 20, of such contour that it will lit within the V-shaped channel, 21, at one end of a strip, 22, and then welding it in position, as indicated at 23. Thus no lateral olf-setting of the extended portion is required, and a cooperating strip may be placed in abutting relation thel same as heretofore described.

The improved strip will .be found to be simple and economical to manufacture and of increased facility in use. Modifications other than that already described may be made `and Ido not wish to be limited except as indicated inthe appended claims.

1I claim:l u l 1. A road strip having a longitudinally extending, laterally olf-set channel located intermediate its margins, said channel be- -ing extended beyond'the-end of the margins at one end, the'extended portionbeing deyiiect'ed inwardly tothe extent of the thickness of *ther metal constituting the strip,

extending, laterallyy off-'set vchannel hlocated intermediate its margins, said channel be- 2. A'road strip lhaving a longitudinally ing extendedbeyon'd the end of the margins at one end, the extended portion bein deiected inwardly to the extent of the lickness of the metal constituting the strip, whereby said extended portion may fit Within the channel of an ad] acent strip and allow the top and bottom margins of the strip to be positioned in end abutment and alignment, said extended portion and the channel sides of an adjacent strip having registering apertures to accommodate a vertically extending .pin. t

. 3. A road strip having a longitudinally extending, laterally ff-set channe l,located intermediate its side margins, said channel being extended beyond the end of' the margins at one end, the extended portion being positioned inwardly of the main portion of the channel to the extent of the thickness of the metal of the strip.

4. A road strip having top and bottom parallel margin portions and an intermediate V-shaped laterally projecting channel portion, said channel portion being extended eyond the ends of the marginal portionsA and having verticallyregistering apertures, said extended portion being laterally o-set relative to the corresponding portion that is a part ofthe body of the strip, whereby the marginal portions of two strips may abut in alignment without overlappin the overlapped portions of the channels eing adapted to receive a vertical fastening pin.

In testimony whereof I have aliixed my signature.

GEORGE L. WELLER.

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