Chair base ganging fixture

Claim 1

A chair base comprising a pair of leg elements comprising laterally spaced legs respectively at opposite sides of the chair base and integrally connected by top bars, the said elements and the legs thereof being inclined toward each other, means connecting the bars of said elements, the legs at each side of the chair base being mutually divergent, braces connecting the divergent legs of the respective elements at the sides of the chair base, each such brace comprising a longitudinally elongated member having its ends attached to the divergent legs of respective elements, each brace having between its said attached ends an intermediate portion offset laterally outwardly from the chair base and provided with a horizontally elongated rib, the intermediate portion of the brace having adjacent one end of the said rib an upright keyhole slot and at the other end of said rib, a pin provided with a head receivable into the wider portion of the slot and of a width in excess of the width of the narrower portion of the slot, the braces at opposite sides of the chair base being mutually reversed, whereby the headed pin of one chair base will register with the keyhole slot of an adjacent chair base of like construction, and will have its keyhole slot in registry with the headed pin of such adjacent chair base, the headed pins and keyhole slots of the chair base providing for ganging connection with other like chair bases.