Mechanical motion and x

Claim 1

A SCANNING X-RAY SPECTROMETER, MONOCHROMATOR, OR THE LIKE OF THE TYPE HAVING A CURVED DIFFRACTION ELEMENT FOR FORMING A FOCUSED IMAGE OF A SOURCE OF X-RADIATION AT A SELECTED POINT ALONG A FOCAL CIRCLE COMPRISING A SUPPORTING PLATE, MEANS ON SAID PLATE DEFINING TWO STRAIGHT GUIDEWAYS ANGULARLY OFFSET FROM EACH OTHER AT AN ACUTE ANGLE, AN ISOSCELES TRIANGLE LINK HAVING AN APEX ANGLE EQUAL TO TWICE SAID ACUTE ANGLE, MEANS FOR MOUNTING THE OPPOSITE ENDS OF THE BASE OF SAID LINK FOR SMOOTHLY GUIDED TRAVEL ALONG RESPECTIVE ONES OF SAID GUIDEWAYS WITH THE APEX OF SAID LINK EXTENDING IN THE DIRECTION OF CONVERGENCE OF SAID GUIDEWAYS, A FIRST PIVOT FIXED TO SAID LINK AT ONE END OF THE BASE THEREOF, AN X-RAY DIFFRACTION ELEMENT FIXED TO SAID PIVOT, SAID DIFFRACTION ELEMENT BEING OF THE FOCUSING TYPE AND HAVING A CURVED SURFACE LYING ALONG A CIRCLE CENTERED AT THE APEX OF SAID LINK, AN AUXILIARY GUIDEWAY PIVOTED ON SAID FIRST PIVOT, MEANS DEFINING A SLIT MOVABLE ALONG SAID AUXILIARY GUIDEWAY, A RADIUS LINK PIVOTALLY CONNECTED BETWEEN SAID SLIT MEANS AND THE APEX OF SAID ISOSCELES TRIANGLE LINK FOR SPACING SAID SLIT MEANS FROM THE APEX OF SAID TRIANGLE LINK A DISTANCE EQUAL TO THE SPACING OF SAID DIFFRACTION ELEMENT THEREFROM, MEANS FOR DRIVING SAID SLIT MEANS ALONG SAID AUXILIARY GUIDEWAY SYNCHRONOUSLY AND EQUALLY WITH THE TRAVEL OF SAID FIRST PIVOT, SAID DRIVING MEANS BEING ARRANGED TO DRIVE SAID SLIT MEANS TOWARD SAID FIRST PIVOT DURING TRAVEL OF SAID PIVOT IN THE DIRECTION OF CONVERGENCE OF SAID TWO STRAIGHT GUIDEWAYS AND TO DRIVE SAID SLIT MEANS AWAY FROM SAID FIRST PIVOT DURING TRAVEL OF SAID FIRST PIVOT IN THE DIRECTION OF DIVERGENCE OF SAID TWO STRAIGHT GUIDEWAYS, AND MEANS FOR DRIVING ONE END OF THE BASE OF SAID TRIANGLE LINK ALONG ITS GUIDEWAY.