Mechanical automatic-recording apparatus for tensile testing of sheet metal

Claim 1

A LOAD VALUE MAGNIFYING DEVICE FOR MOUNTING ON A TESTING MACHINE COMPRISING A DISPLACEABLE LOAD VALUE TRANSMITTING MEMBER THE DISPLACEMENT OF WHICH IS PROPORTIONAL TO THE LOAD APPLIED BY THE MACHINE TO A TEST SPECIMEN, FIRST PULLEY MEANS HELD STATIONARY WITH RESPECT TO THE MACHINE, SECOND PULLEY MEANS WHICH WILL MOVE TOWARDS AND AWAY FROM THE FIRST PULLEY MEANS WITH THE MOVEMENT OF THE TRANSMITTING MEMBER IN ONE DIRECTION AND THE OPPOSITE DIRECTION RESPECTIVELY, AN ELONGATED FLEXIBLE MEMBER ONE END OF WHICH IS HELD STATIONARY WITH RESPECT TO THE MACHINE, ONE PORTION OF SAID FLEXIBLE MEMBER EXTENDING OVER SAID FIRST AND SECOND PULLEY MEANS AND ANOTHER PORTION OF SAID FLEXIBLE MEMBER EXTENDING AWAY FROM SAID FIRST AND SECOND PULLEY MEANS WHILE DRIVING A LOAD INDICATING DEVICE SUCH AS AN INPUT FOR A RECORDER SO THAT, ON MOVEMENT OF THE TRANSMITTING MEMBER THERE WILL BE A CORRESPONDING BUT MAGNIFIED MOVEMENT OF SAID OTHER PORTION OF THE FLEXIBLE MEMBER, AND