Caster wheel for trailers

Claim 1

A CASTER WHEEL FOR USE ON AUTOMOTIVE TYPE TRAILERS, COMPRISING: AN AUTOMOTIVE TYPE WHEEL HAVING A PNEUMATIC TIRE THEREON, A HORIZONTAL WHEEL SPINDLE HAVING BEARINGS THEREON AND DISPOSED TO OPERATIVELY SUPPORT SAID WHEEL; AN INCLINED FORK FOR SUPPORTING SAID SPINDLE; A REVOLVABLE, VERTICALLY DISPOSED SHAFT HAVING A HOUSING MEMBER SECURED TO ITS LOWER END; A SUPPORTING BRACKET FOR SAID REVOLVABLE SHAFT ADAPTED TO BE SECURED TO THE FRAME OF A TRAILER, SAID HOUSING HAVING HORIZONTAL PIVOT MEANS FOR SUPPORTING SAID FORK; RESILIENT MEANS OPERATIVELY CONNECTING SAID FORK AND SAID HOUSING; LOCKING MEANS FOR SAID VERTICAL SHAFT TO NORMALLY PREVENT CASTER ACTION OF SAID WHEEL; SAID LOCKING MEANS COMPOSED OF A NOTCHED MEMBER DISPOSED FOR LIMITED ROTATION ON SAID VERTICAL SHAFT AND A RIGID SPRING BIASED LOCK PAWL MEMBER; FLEXIBLE TENSION MEANS FOR REMOTELY DISENGAGING SAID LOCKING MEANS; A MOVABLE TOE-IN ADJUSTING MEANS FOR SECURING SAID NOTCHED MEMBER AND SAID VERTICAL SHAFT IN ADJUSTED ANGULAR RELATIONSHIP; AND SAID ADJUSTING MEANS COMPOSED OF AN OUTSTANTING BOSS ON SAID NOTCHES MEMBER; A COACTING TOE-IN ADJUSTING MEMBER FIXEDLY SECURED TO SAID SHAFT AND BIFURCATED TO PROVIDE SPACED APART LUGS DISPOSED ON EACH SIDE OF SAID OUTSTANDING BOSS WITH CLEARANCE PERMITTING AN ADEQUATE RANGE OF ANGULAR ADJUSTMENT BETWEEN SAID VERTICAL SHAFT AND SAID ADJUSTING MEANS, AND MEANS THREADEDLY ENGAGING SAID BOSS FOR SECURING SAID SHAFT AND SAID OUTSTANDING BOSS IN ADJUSTED POSITION.