Antiskid device for ladders

Claim 1

AN ANTISKID DEVICE, PARTICULARLY FOR HOLDING THE ENDS OF LADDER RAILS AND THE LIKE AGAINST SKIDDING ALONG THE GROUND AND ALONG BUILDING WALLS OR OTHER SUPPORTS, COMPRISING A ONE-PIECE BLOCK INCLUDING A FIRST SECTION CONSISTING OF ELASTICALLY DEFORMABLE WEAR-RESISTANT MATERIAL AND HAVING A SURFACE PROVIDED WITH A PLURALITY OF SPACED STUD LIKE ANTISKID PROJECTIONS, SAID BLOCK FURTHER INCLUDING A SECOND SECTION WHICH CONSISTS OF ELASTICALLY DEFORMABLE WEAR-RESISTANT MATERIAL WHOSE ELASTICITY IS LESS THAN THE ELASTICITY OF THE MATERIAL OF SID FIRST SECTION AND PROVIDED WITH A TRANSVERSELY EXTENDING BORE WHOSE AXIS IS SUBSTANTIALLY PARALLEL WITH THE GROUND; A RIGID CONNECTING MEMBER ADAPTED TO BE SECURED AT ONE END OF A LADDER RAIL OR THE LIKE, SAID CONNECTING MEMBER INCLUDING A BEARING ELEMENT HAVING A PAIR OF LEGS ADJACENT TO BUT SPACED FROM THE ENDS OF SAID BORE, SAID LEGS HAVING OPENINGS IN REGISTERY WITH SAID BORE; A BEARING SLEEVE RECEIVED IN SAID BORE AND SECURED TO SAID ELASTICALLY DEFORMABLE MATERIAL OF SAID SECOND SECTION; A SPACER ELEMENT HAVING ENDS ABUTTING AGAINST SAID LEGS SO AS TO PREVENT COMPRESSION OF SAID ELASTICALLY DEFORMABLE SECOND SECTION BY SAID LEGS OF SAID CONNECTING MEMBER; AND PIVOT MEANS EXTENDING THROUGH SAID BORE AND THROUGH THE OPENINGS OF SAID LEGS PROVIDING AN ARTICULATE CONNECTION BETWEEN SAID BLOCK AND SAID CONNECTING MEMBER SO THAT SAID BLOCK IS PIVOTABLE WITH RESPECT TO SAID CONNECTING MEMBER ABOUT SAID AXIS.