Rake crane

Claim 1

IN A STORAGE BUILDING HAVING A BIN CONTAINING HOG FUEL, A FRAME-WORK WITHIN SAID BUILDING LOCATED IN OVERHEAD RELATION TO THE STORED FUEL, A COLUMN SUSPENDED FROM SAID FRAMEWORK AND RECEIVING A JOURNAL THEREFROM FOR ROTATION OF THE COLUMN ABOUT A VERTICAL AXIS, POWEROPERATED MEANS FOR ROTATING SAID COLUMN, A RAKE SUPPORT MEMBER HINGED FROM THE LOWER END OF THE COLUMN FOR VERTICAL SWING MOTION ABOUT A HORIZONTAL AXIS, SAID RAKE SUPPORT MEMBER BEING JOINTED TO PROVIDE INNER AND OUTER ARMS ARTICULATING FOR JACK-KNIFE MOTION ABOUT A HORIZONTAL AXIS, THE INNER ARM COMPRISING A PAIR OF SPACED PARALLEL BARS HAVING THE INNER END STRADDLING THE COLUMN AND TRAVERSED BY A HORIZONTAL PIN TO PROVIDE SAID HINGE, THE OUTER ARM HAVING ITS INNER END RECEIVED IN THE SPACE BETWEEN SAID ARMS AT THE OUTER END OF THE LATTER AND TRAVERSED BY A HORIZONTAL PIN TO PROVIDE SAID ARTICULATION, A RAKE SLIDABLY CARRIED BY THE RAKE SUPPORT MEMBER FOR EXTENSION AND RETRACTION MOVEMENTS, SAID RAKE HAVING A RAKING HEAD AND AT LEAST TWO PARALLELING GUIDE MEMBERS RIGID WITH AND EXTENDING REARWARDLY FROM THE HEAD, SAID OUTER ARM OF THE RAKE SUPPORT MEMBER PROVIDING A RESPECTIVE JOURNAL-FORMING SLEEVE AT EACH OF THE TWO SIDES THEREOF ONE SLEEVE TO RECEIVE ONE OF SAID GUIDE MEMBERS AND THE OTHER SLEEVE TO RECEIVE THE OTHER OF SAID GUIDE MEMBERS FOR ENDWISE SLIDE MOTION, AND RESPECTIVE HYDRAULIC JACKS, ONE FOR MOVING THE RAKE SUPPORT MEMBER IN ITS SAID SWING MOTION, ONE FOR MOVING THE RAKE IN ITS SAID EXTENSION AND RETRACTION MOTION, AND ONE FOR MOVING THE TWO ARMS OF THE RAKE SUPPORT MEMBER IN SAID JACK-KNIFING MOTION, THE FIRST SAID JACK BEING CONNECTED AT ONE END TO THE COLUMN AT A POINT SPACED VERTICALLY FROM SAID HINGE AXIS AND CONNECTED AT THE OTHER END TO THE INNER ARM OF THE RAKE SUPPORT MEMBER AT THE APPROXIMATE MID-LENGTH THEREOF, THE SECOND SAID JACK BEING SECURED AT ONE OF ITS ENDS TO THE RAKE SUPPORT MEMBER AND AT THE OTHER END TO THE RAKE, THE THIRD SAID JACK BEING CONNECTED AT ONE END TO A CRANK ARM RISING FROM THE OUTER ARM OF THE RAKE SUPPORT MEMBER ADJACENT ITS POINT OF ARTICULATION WITH SUPPORT MEMBER''S INNER ARM AND CONNECTED AT THE OTHER END TO SAID INNER ARM AT THE APPROXIMATE MID-LENGTH THEREOF.