Specific radiation absorption capacity measurement of a solid substance

Claim 1

IN APPARATUS FOR AUTOMATICALLY MEASURING THE SPECIFIC RADIATION ABSORPTION CAPACITY PER UNIT OF MASS OF A SOLID SUBSTANCE OF THE TYPE THAT INCLUDES MEANS FOR DIRECTING A BEAM OF PENETRATIVE RADIATION FROM A SOURCE INTO A WEIGHED SAMPLE OF FINELY DIVIDED SUBSTANCE,MEANS FOR DETECTING RADIATION TANSMITTED THROUGH SAID SAMPLE, MEANS FOR PHOTOELECTRICALLY COMPARING SAID TRANSMITTED RADIATION WITH A SECOND BEAM OF THE SAME RADIATION A COMPENSATOR ADAPTED TO AUTOMATICALLY DECREASE THE INTENSITY OF SAID SECOND RADIATION BEAM PROPORTIONALLY TO THE AMOUNT OF RADIATION ABSORBED BY SAID SAMPLE AND FIG -01 MEANS FOR CONVERTING THE ACTION OF SAID COMPENSATOR INTO A MEASURING IMPULSE; A MOVABLE MEMBER PROVIDED WITH A LONG-STRETCHED OPEN-TOPPED GROOVE THE BOTTOM OF WHICH GROOVE IS SUBSTANTIALLY PERMEABLE TO THE RAIATION TO BE APPLIED, MEANS FOR SPREADING THE SAMPLE INTO SAID PASSESS LENGTHWISE THROUGH THE RADIATION BEAM INTENDED FOR THE IRRADIATION OF THE SAMPLE AT UNIFORM VELCOITY AND MEANS FOR INTERGRATING THE SUCCESSIVE ACTIONS OF THE COMPENSATOR OVER THE TIME.