Adjustable seat

Claim 1

THE COMBINATION COMPRISING A SEAT, A FRONT RAIL, A REAR RAIL SPACED FROM THE FRONT RAIL AND SIDE RAILS JOINING THE ENDS OF SAID FRONT AND REAR RAILS, A SUPPORT ADAPTED TO BE FIXED TO THE FLOOR OF A VEHICLE OR THE LIKE ADJACENT EACH SIDE OF SAID SEAT, EACH SAID SIDE RAIL BEING TELESCOPED OVER ITS RESPECTIVE SUPPORT, ROLLER BEARING MEANS INTERPOSED BETWEEN THE SURFACES OF SAID TUBULAR SUPPORT AND SAID SIDE RAIL AT LONGITUDINALLY SPACED POINTS ALONG SAID SIDE RAIL, AND INTERENGAGING MEANS BETWEEN EACH SAID SIDE RAIL AND ITS RESPECTIVE SUPPORT FOR LOCKING SAID SIDE RAIL IN LONGITUDINALLY SPACED RELATION TO SAID SUPPORT, EACH SAID TUBULAR SUPPORT INCLUDING A DOWNWARDLY EXTENDING WEB, A PLURALITY OF VERTICALLY SPACED TEETH ON EACH END OF SAID WEB, A BASE INCLUDING AN UPWARDLY EXTENDING SUPPORT ADJACENT EACH END OF SAID WEB, A FIRST LATCH PIVOTED ABOUT A HORIZONTAL AXIS INTERMEDIATE ITS ENDS TO SAID SUPPORT, SAID FIRST LATCH HAVING A PIN IN THE UPPER END THEREOF, A SLOT IN SAID SUPPORT THROUGH WHICH SAID PIN EXTENDS, SAID PIN BEING ADAPTED TO SELECTIVELY ENGAGE THE TEETH ON THE FRONT END OF SAID WEB, A SECOND LATCH AT THE REAR END OF SAID WEB, SAID SECOND LATCH HAVING A PIN, SAID SUPPORT HAVING A SLOT THROUGH WHICH SAID PIN EXTENDS, SAID PIN BEING ADAPTED TO SELECTIVELY ENGAGE THE TEETH AT THE REAR END OF SAID SUPPORT, AND A RIGID LINK PIVOTED TO AND INTERCONNECTING THE LOWER ENDS OF SAID LATCHES, WHEREBY WHEN SAID SECOND LATCH IS SWUNG REARWARDLY ABOUT ITS PIVOT, SAID FIRST LATCH IS CAUSED TO SWING AND DISENGAGE THE PIN WITH SAID FIRST ROW OF TEETH ON THE FORWARD END OF THE WEB AND WHEN SAID SECOND LATCH IS MOVED REARWARDLY IT IS CAUSED TO DISENGAGE FROM ITS RESPECTIVE TEETH AND SWINGS SAID FIRST LATCH ABOUT ITS PIVOT.