Process and apparatus for detachably fixing a device on a machine and installation for putting this process into practice

Claim 1

A PROCESS FOR REMOVABLY FIXING A DEVICE ON A MACHINE IS A PRESCRIBED POSITION, COMPRISING PROVIDING A PAIR OF COMPLEMENTARY BRACKETS, SAID PAIR OF BRACKETS INCLUDING A MALE BRACKET HAVING TRUED PRISMS ON ITS ONE END FACE WITH THE TRUED PRISM SURFACES INCLINED RELATIVELY TO THE GENERAL PLANE OF SAID FREE END FACE AND A FEMALE BRACKET HAVING TRUED PRISMATIC GROOVES OF A SHAPE COMPLEMENTARY TO THE SAID TRUED PRISMS ON ITS ONE END FACE AND INCLINED RELATIVELY TO THE GENERAL PLANE OF SAID ONE END FACE, FIXING THE ONE OF SAID BRACKETS TO THE MACHINE IN A PERFECTLY SPECIFIED POSITION RELATIVELY TO THE MACHINE AND WITH ITS SAID END FACE FULLY ACCESSIBLE, FIXING SAID DEVICE ON THE OTHER OF SAID BRACKET IN A PERFECTLY SPECIFIED POSITION RELATIVELY TO SAID OTHER BRACKET AND WITH SAID END SURFACE OF SAID OTHER BRACKET FULLY ACCESSIBLE, INTERCONNECTING SAID BRACKETS WITH THEIR COMPLEMENTARY END FACES ENGAGING EACH OTHER WITHOUT CLEARANCE, THE RELATIVE POSITION OF SAID BRACKETS BEING THEREBY PERFECTLY SPECIFIED IN THREE DIMENSIONS, THE POSITION OF SAID DEVICE ON THE MACHINE BEING THUS PERFECTLY PREDETERMINED BY FIXING IT ON SAID OTHER BRACKET IN A PERFECTLY SPECIFIED POSITION AND BY INTERCONNECTING SAID BRACKETS IN A PERFECTLY SPECIFIED RELATIVE POSITION.