US1917529A - Individual bar chair - Google Patents

Description

July 11, 193: L LA isE T 1,917,529

INDIVIDUAL BAR 1 CHAIR Filed Aug. 19. 1931 Patented July 11 1933 ,UNITEDSTATES A-TE- T T LYDIA LAMPERT, OF CHICAGO, ILIJINOIS, ASSIGNOR 'IO UNIVERSAL FORM CLAMP (30., 1 7

OF CHICAGO, ILLINGIS, A- CORPORATION OF ILLINOIS INDIVIDUAL BAR CHAIR Application filed August 19, 1931. SeriaINo. 557,985.

tion is shown in the accompanying drawing,

wherein e I Figure l is a perspective view of an improved bar supporting chair.

Figure 2 is a side elevation of the support ing section of the chair. v Figure 3 is a perspective view of the brace section of the chair.

Figure 4: is a side elevation of the complete chair; a reinforcing barbeing shown in dotted outline and a mold soflit being shown.

in section.

Figure 5 is a view taken from the right of Figure 4.

Bar supports for use in concrete construction work are of two general types. One type includes a plurality of supporting chairs which are welded or otherwise rigid ly secured to a spacing rod for supporting the reinforcing bars above the falsework and for spacing them the required distance from one another. In the other type of bar sup port, the spacing rod is omitted and the chair alone is used. This latter type is known as the individual bar support. Tall individual bar supports are also referred to in the trade as high chairs.

Bar chairs embodying this invention are intended primarily as individual bar sup ports, although several of them may be welded or otherwise fastened to a spacing rod to form a bar support and spacer.

In concrete construction work, the reinforcing bars are frequently fastened to the chairs by means of small pieces of wire which are wrapped around the chair and bar. In the improved construction herein shown, a

forcing bar to its seat without the use of wires or other fastening means.

The reinforcing system involves the use of reinforcing bars 1, only one of which is shown, disposed horizontally above a falsework 2, and supported by two or more of the improved chairs. r

in the form shown, the improved chair comprises a supporting section 3 and a brace section 4, which are preferably made of round wire of comparatively heavy gauge.

The supporting section 3 is of inverted U- shape to provide a horizontal shelf 5, for supporting the bar and apair of legs 6 which diverge downwardly slightly for stability. The lower ends of the legs 6 are bent outwardly to form feet? so as to prevent the legs from cutting into the mold soflit.

The chair section 4. is substantially 'V- shaped and its extremities are spot welded to the shelf 5, as shown at 8. The two arms of this section are looped adjacent their upper ends to provide a resilient clip having upwardly converging parts 9 defining a re strictedthroat through which the reinforcing bar is pressed into engagement with the shelf 5.

As shown in Figure 5, the two chair sections 3 and 4: are assembled so as to be dis posedin downwardly divergent planes to give greater stability to the structure.

With this improved construction and arrangement of parts, the brace section 4: serves to stabilize the supporting sect1on 3 and also secures the reinforcing bar against accidental displacement. I Y 1 I claim as my invention: I

1. An individual bar support comprising a supporting section of inverted U-shape providing a pair of depending legs and a connecting horizontal shelf forming a seat for the bar, and a substantially V -shaped inclined brace section having its two legs bent downwardly to provide a pair of spaced arms, the outer extremities'of said arms being welded to said shelf, all of the bent portions of bent to form horizontal feet, and a substantially V-shaped inclined brace section having its upper extremities Welded to said shelf, the upper ends of said brace section being bent to provide a pair of loops projecting above said shelf to secure the bar against displacement, all of the bent portions of said brace being spaced from the Welded joints.

LYDIA LAMPERT.

Images