Hoisting device

Claim 1

A HOISTING DEVICE AND THE LIKE COMPRISING A FRAME, A RATCHET WHEEL PIVOTALLY SUPPORTED BY SAID FRAME, A FIRST PAWL SUPPORTED BY SAID FRAME FOR ENGAGEMENT WITH SAID RATCHET WHEEL TO PREVENT ROTATION THEREOF IN ONE DIRECTION AND SUCH PAWL BEING PIVOTABLE AWAY FROM ENGAGEMENT WITH SAID RATCHET WHEEL TO PROVIDE FOR ROTATION THEREOF IN SAID ONE DIRECTION, A SECOND PAWL SWINGABLE IN AN ARCUATE PATH OF TRAVEL ABOUT THE AXIS OF ROTATION OF SAID RATCHET WHEEL AND PIVOTABLE TOWARD AND AWAY FROM ENGAGEMENT THEREWITH, RESILIENT MEANS YIELDABLY BIASING SAID SECOND PAWL AWAY FROM RATCHET WHEEL ENGAGEMENT, A FIRST ABUTMENT FOR PIVOTING SAID SECOND PAWL TO ENGAGEMENT WITH SAID RATCHET WHEEL AGAINST THE FORCE EXERTED BY SAID RESILIENT MEANS WHEN SAID SECOND PAWL IS SWUNG IN ITS ARCUATE PATH IN ONE DIRECTION TO ABUTMENT ENGAGEMENT, A SECOND ABUTMENT ENGAGEABLE WITH SAID FIRST PAWL FOR PIVOTING THE LATTER AWAY FROM ENGAGEMENT WITH SAID RATCHET WHEEL UPON FURTHER MOVEMENT OF SAID SECOND PAWL IN THE DIRECTION AFORESAID, AND A RESILIENT LOST-MOTION CONNECTION INTERPOSED BETWEEN SAID ABUTMENTS TO DELAY RETURN OF SAID FIRST PAWL TO ENGAGEMENT WITH SAID RATCHET WHEEL FOLLOWING ITS DISENGAGEMENT THEREFROM AND SUBSEQUENT REVERSE MOVEMENT OF SAID SECOND PAWL IN ITS ARCUATE PATH OF TRAVEL.