| 摘要 |
633,031. Tools for setting out work. SOC. GENEVOISE D'lNSTRUMENTS DE PHYSIQUE. Oct. 2, 1947, No. 26571. Convention date, Nov. 24, 1944. [Class 61 (ii)] [Also in Group XXII] Apparatus supporting a marking tool, a boring tool and a microscope relative to a work table, comprises a frame supporting a work table and a guideway, said tools and microscope being carried by a slide movable along said guideway above the work. table. As shown, a slide 2 is movable along a guideway 1 through a distance equal to the axial spacing between a marking tool 19 and a boring tool 21 carried respectively by sleeves 18 and 22 each vertically displaceable within the slide by a rack and pinion means. A microscope 7 also supported by the slide comprises a fixed portion having ocular and objective lenses 9, 10, and a portion consisting of a pair of prisms 11, 12 supported by a member 13 for horizontal sliding movement within a sheath 14 so that in its operative position, as shown, the effective axis of the microscope is coincident with the axis of the marking tool, said member 13 being retractable when it is desired to use the marking tool. The slide is held in engagement with the guideway and one or other of the abutments 4, 5, by spring means carried at the free end of a radially adjustable arm pivoted to the frame to the rear of the guideway The Specification as open to inspection under Sect. 91 includes also the construction described in Specification 642,151. This subject-matter does not appear in the Specification as accepted. |
