Sawhorse or trestle

Claim 1

A SAWHORSE COMPRISING AN ELONGATED MAIN FRAME MEMBER OF INVERTED CHANNEL METAL HAVING DOWNWARDLY DIVERGING SIDE FLANGE PORTIONS AND A PAIR OF FOLDABLE LEG ASSEMBLIES AT EACH END THEREOF AND MOVABLE BETWEEN A FOLDED POSITION HOUSED BETWEEN SAID DIVERGING SIDE FLANGE PORTIONS AND AN EXTENDED POSITION SUPPORTING SAID FRAME MEMBER, EACH OF SAID LEG ASSEMBLIES COMPRISING A PAIR OF LEGS EACH HAVING ONE END THEREOF SEPARATELY PIVOTALLY CONNECTED TO ONE EACH OF THE ENDS OF SAID SIDE FLANGE PORTIONS OF SAID MAIN MEMBER AND MOVABLE ON SAID PIVOTS BETWEEN SAID FOLDED POSITION PARALLEL TO SAID MAIN MEMBER BETWEEN THE SIDE FLANGE PORTIONS THEREOF AND AN EXTENDED POSITION SUBSTANTIALLY AT RIGHT ANGLES THERETO IN SAID EXTENDED POSITION, A SEPARATE, MANUALLY RELEASABLE BRACE HAVING MEANS ASSOCIATED WITH EACH LEG OPERABLE AUTOMATICALLY TO LOCK THE ASSOCAITED LEG IN EXTENDED POSITION AND A APAIR OF MANUALLY RELEASABLE CROSS BRACES ASSOCIATED ONE EACH WITH EACH OF SAID PAIRS OF LEGS; EACH OF SAID CROSS BRACES BEING PIVOTALLY MOUNTED ON AN INNER FACE OF ONE OF THE LEGS OF THE PAIR WITH WHICH IT IS ASSOCIATED AND BEING INHERENTLY TENSIONED AND HAVING MEANS TO AUTOMATICALLY LOCK ITSELF UPON THE OTHER LEG OF THE ASSOCIATED PAIR OF LEGS IN A POSITION SPREADING THE LEGS ENGAGED THEREBY AT A PREDETERMINED DISTANCE APART WHEN SAID LEGS ARE MOVED TO SAID EXTENDED POSITION.