Stylus changing device

Details Stylus changing device Stylus changing device

G - Physics

01

D

234/39

G01D 15/00 (2006.01)

Patent

CA 1127129

ABSTRACT A stylus changing apparatus for use in automatically controlled drafting machines utilising a plurality of styli comprises a fixed magazine defining a plurality of compartments for receiving styli not instantaneously in use and a dis- placeable carriage for the stylus in use, the carriage also defining a compartment for the stylus. Each compartment of the magazine and the compartment of the stylus carriage includes a stylus holding device, the holding devices in the compartments being identical and being formed by the rear wall of the compartment defining a fixed stop for the stylus and by two resilient clips the free ends of which project into the compart- ment. The free ends each have an inwardly directed projection or barb formed thereon, the projections abutting against the stylus located in the compartment and resisting in use, motion of the stylus away from the rear wall whereby transfer of a stylus between the magazine and the carriage is effected by displacing the carriage in directions parallel to its co-ordinate axes. - 1 -

336748

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