Patent ID: 8246011

Claim:
A slidable adjustable jacking device, comprising: a tubular outer member with a passageway affixed to a side of said tubular outer member, complementary passageway holes equally spaced longitudinally in said passageway, a screwjack inner member with a bar affixed to a side of said screwjack inner member, bar holes equally spaced longitudinally in said bar, a pin for inserting through said complementary passageway holes and said bar holes when said complementary passageway holes and said bar holes are registered for fixing a position of said screwjack inner member and said bar relative to a tongue of a trailer, a load-carrying member located within said screwjack inner member containing a jackscrew which retracts or extends upon rotation of a hand crank, a foot which is affixed to said load-carrying member which transfers force of a load from said tongue of said trailer to a resting location, a flange surrounding an outside of a combination of said tubular outer member and said passageway, and flange mounting openings for affixing said flange to said tongue of said trailer.