Apparatus for supporting conduits in trenches

Claim 1

A SUPPORT FOR POSITIONING A HOLLOW CONDUIT IN A TRENCH AND HOLDING THE CONDUIT IMMOVABLE FROM SAID POSITION UNDER BUOYING EFFECT OF THE CONCRETE WHEN IMBEDDING THE CONDUIT IN CONCRETE, SAID SUPPORT INCLUDING A CROSS BEAM FOR SPANNING WIDTH OF THE TRENCH WITH ENDS THEREOF EXTENDING OVER THE SIDES OF THE TRENCH TO SUPPORT WEIGHT OF THE PORTION OF THE CONDUIT TO BE CARRIED THEREON, MEANS FOR SUPPORTINF ENDS OF THE CROSS BEAM AT A FIXED LEVEL ABOVE THE TRENCH, TRANSVERSELY OF THE CONDUIT MEANS FOR ANCHORING THE CROSS BEAM AGAINST UPWARD THRUST OF THE CONDUIT UNDER THE BUOYING EFFECT OF THE CONCRETE, A HANGER INCLUDING A SLIDE HAVING TOP, BOTTOM AND SIDE PORTIONS SLIDABLY ENGAGING CORRESPONDING PORTIONS OF THE CROSS BEAM TO BRING THE HANGER OVER THE CONDUIT, A GUIDE FIXED TO THE SLIDE, A SADDLE FOR SEATING UPON THE CONDUIT, A RIGID STEM CARRYING THE SADDLE AND SLIDABLE WITHIN THE GUIDE TO BRING THE SADDLE INTO CONTACT WITH ONE CONDUIT, A GIRTH FOR EXTENSION UNDER THE CONDUIT AND HAVING ENDS FIXED TO THE SADDLE AT THE RESPECTIVE SIDES OF THE CONDUIT TO RIGIDLY SECURE THE SADDLE TO THE CONDUIT, CLAMP MEANS FOR SECURING SAID STEM TO THE GUIDE FOR SUPPORTING THE CONDUIT AT THE SEDIRED DEPTH IN THE TRENCH AND FOR HOLDING THE CONDUIT FROM DISPLACEMENT UNDER THE BUOYANT EFFECT OF THE CONCRETE, AND CLAMP MEANS CARRIED BY THE SLIDE AND ENGAGEABLE WITH THE CROSS BEAM FOR ANCHORING THE SLIDE ON THE CROSS BEAM.