Dynamometer

Claim 1

A MOTORING AND ABSORPTION DYNAMOMETER FOR TESTING MACHINES, COMPRISING; A SHAFT ADAPTED TO BE INTERCONNECTED WITH THE MACHINE TO BE TESTED, AN ENCLOSED CASING SURROUNDING SAID SHAFT, MEANS ROTATABLY MOUNTING SAID CASING FOR ROTATABLE MOVEMENT ABOUT THE AXIS OF SAID SHAFT WITHIN PREDETERMINED LIMIT POSITIONS, A HYDRAULIC ABSORPTION UNIT POSITIONED WITHIN SAID CASING, SAID HYDRAULIC ABSORPTION UNIT HAVING SEPARATE ELEMENTS THEREOF SEPARATELY INTERCONNECTED WITH SAID CASING AND SAID SHAFT PROVIDING A HYDRAULIC DRIVE CONNECTION BETWEEN SAID SHAFT AND SAID CASING OPERABLE TO TRANSMIT TORQUE APPLIED TO SAID SHAFT TO SAID CASING, FIRST CONTROL MEANS TO INTERRUPT THE TRANSMISSION OF TORQUE BY THE HYDRAULIC ABSORPTION UNIT FROM SAID SHAFT TO SAID CASING, A TORQUE INDICATOR CONNECTED TO SAID CASING OPERABLE TO INDICATE THE AMOUNT OF TORQUE APPLIED TO SAID CASING, A HYDRAULIC FLUID DRIVE MOTOR, ADJUSTABLE PUMP MEANS OPERABLE TO PROVIDE HYDRAULIC DRIVE FLUID TO SAID HYDRAULIC FLUID DRIVE MOTOR TO DRIVE THE SAME, MEANS DRIVABLY CONNECTING SAID HYDRAULIC FLUID DRIVE MOTOR TO SAID SHAFT, A MOUNTING MEMBER FIXED TO SAID CASING AND MOUNTING SAID HYDRAULIC FLUID DRIVE MOTOR TO TRANSMIT THE TORQUE EXERTED BY SAID HYDRAULIC FLUID DRIVE MOTOR ON SAID SHAFT TO SAID CASING, AND SECOND CONTROL MEANS CONNECTED TO SAID PUMP MEANS TO CONTROL OPERATION OF SAID PUMP MEANS AND SAID HYDRAULIC FLUID DRIVE MOTOR AND INTERRUPT EXERTION OF TORQUE ON SAID SHAFT BY SAID HYDRAULIC FLUID DRIVE MOTOR.