(METH)ACRYLATE POLYMERS FOR IMPROVING THE VISCOSITY INDEX

• Main Authors: BARTELS, THORSTEN, KOSCHABEK, RENE, KUENZEL, SANDRA, WEBER, MARKUS, WINCIERZ, CHRISTOPH
• Format: Patent
• Language: English; French
• Published: 28.07.2011
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; FUELS; LUBRICANTS; LUBRICATING COMPOSITIONS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION

According to the present invention, a rod-mounting apparatus for a drilling apparatus comprises: a bracket installed on a frame of a main body of the drilling apparatus, having a rod; a base member rotatably mounted on the bracket; a rotating member hinged to one side of the base member to hold and rotate an end of a rod connected to or separated from a driving shaft; a clamping unit mounted on the rotating member to clamp the end of the rod; and a driving unit mounted on the base member to rotate the rotating member in the direction of erecting or laying the rotating member. The rod-mounting apparatus of the present invention enables rods to be smoothly connected together or separated from each other for drilling work, thereby improving the efficiency of drilling work.