US1756514A

US1756514A - Clamp for positioning metallic curb edging

Info

Publication number: US1756514A
Application number: US316292A
Authority: US
Inventors: Charles S Hempstead
Original assignee: WILLIAM B WHARTON
Current assignee: WILLIAM B WHARTON
Priority date: 1928-10-31
Filing date: 1928-10-31
Publication date: 1930-04-29
Anticipated expiration: 1947-04-29

Description

April 29, 1930'. c. s. HEMPSTE-AD CLAMP FOR POSITIONING METALLIC CURB EDGING Filed Oct. 31, 1928 INYENTOR Chg rls S. He P'sl'eq d.

bg 20M flfl/m his attorney Patented Apr. 29, 1930 UNITED STATES CHARLES s. HEMPSTEAD, on NEW SALEM, PENNSYLVANIA, ASSIGNOR or oNE-HALF TO WILLIAM B. WHARTON, OF PITTSBURGH, IP ENNSYLVANIA' CLAMP FOR POSITIONING METALLIQQURB EDGIIVG,

Application filed. October 31,1928. Serial No: 316,292.

This invention relates to a clamp to be used in positioning metallic edges for roadway curbs and the like.

In supporting metallic edges or cornices for curbs, a great deal of difiiculty has been experienced in positioning and maintaining them in proper alignment while the concrete is being poured into the usual curb forms.

The object of this invention is to provide a clamp of simple structure which may be read.- ily utilized to position and fix metallic edges for curbs during pouring of the concrete to form the curbproper.

In the accompanying drawings Figure I is a fragmentary plan view of a portion of a cement road, showing the curb forms positioned adjacent one edge thereof, and showing clamps of the present invention in position to retain the metallic curb edging; Figure II is a sectional view taken on the line II-II of Fig. I; Figure III is an enlarged view of a slightly modified form of the clamp of the present invention; Figures IV and V are respectively a side elevation and a plan View of a still further modified form of the clamp; and Figure VI is a sectional view, similar to that of Fig. II, showing a clamp adapted to retain a curb edging of a slightly modified cross section.

The reference numeral 1 denotes a portion of solidified concrete road-bed upon and adjacent which are fixed the metallic curb forms 2 and 3. The cement to form thecurb is poured into the space 4 between the said two curb forms. It is common practice to provide the cross members 5, which are fastened, as shown, to secure in spaced relation the aforesaid forms. The metallic curb edging 6 usually is positioned adjacent the inner upper edge of the form 3, so that when the concrete is poured and allowed to harden, the edge 6 is embedded at the upper and inner edge of the curb.

In Figures I, II and III the curb edging illustrated is curved in cross section and presents an outer rounded corner for the finished curb. It is ordinarily difiicult to position this type of curb edging, but with the aid of the clamps 7 this difiiculty is eliminated.

The'particular shape of inner portions of the clamps .7, which engage the metallic edging 6 is of prime importance. It willbe noted that the clamps are constructed tor-form the corner 8, which receives the edge 6 of the curb edging member 6, andthe clamp is provided with the inturned portion 9. This portion 9 is so formed, and is of such length that it engagesthe lower edge G of, the edging mem bel6. When the clamps? are positioned on top of the curbing form-3, and the tightening wedges 10 hammered into position, as illustrated in the drawings, the edge 6 is drawn flush with the inner surface 3 of the form and at the proper elevation. After pouring,

the concrete in the form members 2 and 3 is smoothed along-its extent, forming an upper surface which lies parallel to the top surfaces of the form members, and manifestly the edge 6 will be flush with the upper surface of the concrete.

PATENT, orFics-f,

After the poured concrete is set or partially hardened, the clamps may be torn out without disturbing the curb edging, and the resulting holes in the concrete may be easily patched and smoothed over.

Although the wedges 1O serve well fordrawing the clamps? tightly into position on the form 3, it should be understood that the threaded clamp member 11, shown in Fig. III, or the arrangement of the eccentrically mounted wheel 12, shown in Figures IV and ice."

any"

Due to the difiiculty experienced in the past in mounting curb edgings, there has been a tendency to avoid their use. However, their usefulness is Well known in preserving curbs, and the clamp of the present invention makes it mer ial y es o m nt the cur edgingsYW-ith little difficulty, and the clamp is therefore of great utility. I i

What. claim is;

In ination mth a .:.11rb. .I g- 39- 3 1;. a clamp including a central portion seated on the curbing-form an end portion extend ing downwardly from one end thereof and spaced from the inner surfa ed; said urb;- ing -forni, together with an inturned portion extending tron; said end portion into eontact andeooperating with the said inner surface of the eurbing form.

Y 2, In oorn'binationwith a curbing-form a clamp including a. eent-ral portion seated on the curbing io'rrn and an end portion extending downwardly and an intur-ned portion extendingtheretrom, the central and end and inturned ola rnp portio ns cooperating V with the inner surface of said curbing-form to position and retain members as desribed. In witness'- Whereof, I hereunto set my hand} 7 k i CHARLES S, HEMPST-EAD.