Combination hydraulic jack and load holding mechanism

Claim 1

A COMBINATION HYDRAULIC JACK AND POSITIVE SUPPORTING MECHANISM, WHICH MECHANISM COMPRISES; (A) AN ELONGATED, UNITARY CYLINDRICAL HOUSING, (1) ONE END OF SAID HOUSING BEING SUBSTANTIALLY CLOSED, (2) A REMOVABLE, APERTURED HEAD FITTED WITHIN SAID CYLINDRICAL HOUSING INTERMEDIATE THE ENDS THEREOF, (3) SAID ELONGATED CYLINDRICAL HOUSING HAVING A COUNTERBORE FORMED THEREIN TO COMPLEMENTALLY RECEIVE SAID REMOVABLE, APERTURED HEAD HAVING A SEAL(4) SAID REMOVABLE, APERTURED HEAD HAVING A SEALING ELEMENT THEREAROUND TO FORM A POSITIVE FLUID SEAL WITH THE COUNTERBORE OF SAID CYLINDRICAL HOUSING, (5) REMOVABLE FASTENING MEANS EXTENDING THROUGH SAID CYLINDRICAL HOUSING AND ENGAGING SAID REMOVABLE HEAD TO REMOVABLY SECURE SAID HEAD IN SECURE RELATION WITHIN SAID CYLINDER, (B) A HYDRAULIC PLUNGER MOUNTED WITHIN SAID HOUSING, (1) A PORTION OF SAID PLUNGER EXTENDING OUT OF AN END OF SAID HOUSING, (2) SAID PLUNGER EXTENDING AXIALLY THROUGH SAID APERTURED HEAD AND BEING SEALED IN SUBSTANTIALLY FLUID TIGHT RELATION WITH RESPECT THERETO, (3) THE OUTWARDLY EXTENDING PORTION OF SAID PLUNGER BEING SCREW THREADED, (C) AN APERTURED BUSHING SECURED IN THE OUTER END OF SAID CYLINDRICAL HOUSING OPPOSITE SAID SUBSTANTIALLY CLOSED END,