Bracing for railroad boxcar

Claim 1

A LOAD BRACING ASSEMBLY FOR A RAILWAY FEIGHT CAR HAVING A FLOOR, A RELATED PAIR OF SPACED SIDEWALLS AND END WALLS, A ROOF STRUCTURE, ONE SIDEWALL HAVING A DOOR OPENING ARRANGED INTERMEDIATE THE TWO SPACED END WALLS, THE INTERIOR OF SAID FREIGHT CAR AT EACH END THEREOF BETWEEN THE DOOR OPENING AND THE END WALL AT SUCH END DEFINING PLURAL RECTANGULAR CARGO SPACES TO ACCOMMODATE THEREIN PACKAGED RIDGID CARGO UNITS, EACH CARGO SPACE TERMINATING LATERALLY OF THE FREIGHT CAR AT ONE OF SAID SIDEWALLS AND BEING SPACED FROM THE OTHER SIDEWALL OF A PAIR, SAID LOAD BRACING ASSEMBLY COMPRISING RELEASABLE, ELONGATED, VERTICAL BRACE MEMBERS EACH ENGAGING THE FLOOR BY ONE OF THE ENDS THEREOF, ONE VERTICAL BRACE MEMBER BEING ADOTHER END THEREOF, ONE VERTICAL BRACE MEMBER BEING ADJACENT THE MIDLINE OF EACH CARGO SPACE, PINNING RIGID CARGO WITHIN SAID SPACE AGAINST SAID ONE SIDEWALL OF THE RAILWAY FREIGHT CAR, PERMITTING RIGID CARGO TO RACK OR CANT IN TRANSIT AND THUS BECOME WEDGED WITHIN SAID CARGO SPACE BETWEEN SAID ONE VERTICAL BRACE MEMBER AND THE SAID ONE SIDEWALL OF THE RAILWAYL FREIGHT CAR.