Apparatus for engraving indicia on small objects
First Claim
1. Apparatus for engraving a planar workpiece carried by a workpiece support, in which scribing means engraves a miniature representation in a frustro-spherical plane of a two-dimensional pattern in response to two-dimensional planar movement of a stylus following said pattern, the combination comprising:
- (a) means forming a pivotal support above said stylus, said support being freely rotatable in response to stylus movement;
(b) means telescopingly connecting said stylus to said pivotal support so said support rotates in response to two-dimensional stylus movement about said pattern;
(c) said scribing means fixed to said pivotal support above said stylus but below the center of rotation of said pivotal support, extending downwardly from said support and rotatably movable unitarily therewith in response to two-dimensional stylus movement about said pattern;
(d) said means telescopingly connecting said stylus to said pivotal support including means for moving said workpiece, carried by said workpiece support, and said scribing means into and out of contact with one another independently of two-dimensional stylus movement over said pattern while said stylus maintains contact with said pattern, by rotating said workpiece support about a second pivot displaced from said center of rotation of said pivotal support.
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Accused Products
Abstract
Apparatus for engraving has a work piece support adjacent to scribing means for engraving inidicia on the work piece. A stylus moves a pivotal support to which scribing means is attached. Front-writing is achieved by positioning the scribing means above the stylus but below the pivot of the pivotal support. Scribing means concurrently engrave a plurality of work pieces from a single stylus. The work piece support is movable up and down, towards and away from the scribing means. The distance between the pivotal support and the stylus is adjustable. Vibratory means connected to the pivotal support vibrate the scribing means when the scribing means contacts the work piece. Identification means for dentures is provided.
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Citations
23 Claims
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1. Apparatus for engraving a planar workpiece carried by a workpiece support, in which scribing means engraves a miniature representation in a frustro-spherical plane of a two-dimensional pattern in response to two-dimensional planar movement of a stylus following said pattern, the combination comprising:
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(a) means forming a pivotal support above said stylus, said support being freely rotatable in response to stylus movement; (b) means telescopingly connecting said stylus to said pivotal support so said support rotates in response to two-dimensional stylus movement about said pattern; (c) said scribing means fixed to said pivotal support above said stylus but below the center of rotation of said pivotal support, extending downwardly from said support and rotatably movable unitarily therewith in response to two-dimensional stylus movement about said pattern; (d) said means telescopingly connecting said stylus to said pivotal support including means for moving said workpiece, carried by said workpiece support, and said scribing means into and out of contact with one another independently of two-dimensional stylus movement over said pattern while said stylus maintains contact with said pattern, by rotating said workpiece support about a second pivot displaced from said center of rotation of said pivotal support. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 22)
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9. Engraving apparatus in which scribing means inscribes a work piece in response to movement of a stylus following a two dimensional pattern to be engraved wherein said scribing means engrave a miniature two dimensional reproduction of said pattern traced by said stylus, said scribing means moving unitarily in response to stylus movement so that left-to-right and front-to-rear movement of said stylus respectively produces left-to-right and front-to-rear movement of said scribing means, said two dimensions in which said scribing means moves defining a geometric plan skew to a geometric plane defined by said two dimensions in which said stylus moves, comprising:
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(a) a stylus movable within a two dimensional pattern defined by a template; (b) said template being supported by a base; (c) a sleeve receiving said stylus and extending upwardly therefrom; (d) a spring within said sleeve biasing said stylus downwardly; (e) a column extending upwardly from said base, displaced laterally from said stylus and said sleeve; (f) a plate extending laterally from said column; (g) a spherically rotatable pivot member resident within an aperture in said plate and supported by said plate, said pivot member being freely rotatable about its center and receiving in a lower portion thereof an end of said sleeve opposite said end receiving said stylus; (h) a bearing mounted on said plate; (i) a lever having its central portion journaled in said bearing; (j) a counter-weight attached to one arm of said lever; (k) a work piece holder secured to a second arm of said lever, for holding said work piece to be inscribed; and (l) scribing means extending from said pivot member below the center of rotation thereof, movable unitarily with said pivot member, a scribing point in the end of said scribing means remote said pivot member contacting a work piece held by said work piece holder as said lever pivots about said bearing due to downward force exerted by said counter-weight. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. Apparatus for engraving a workpiece carried by a workpiece support, in which scribing means engraves a miniature representation of a pattern in response to movement of a stylus following said pattern, the combination comprising:
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(a) means forming a spherically pivot support above said stylus, said support being freely rotatable in response to stylus movement; (b) means connecting said stylus to said pivotal support so said support rotates in response to substantially two-dimensional stylus movement over said pattern; (c) said scribing means extending fixedly downwardly from below the center of rotation of said pivotal support and movable unitarily therewith in response to stylus movement following said pattern; (d) said means connecting said stylus to said pivotal support including means for moving said workpiece, carried by said workpiece support, and said scribing means into and out of contact with one another independently of stylus movement over said pattern while said stylus optionally maintains contact with said pattern by rotating said workpiece support about an axis displaced from center of rotation of said pivotal support.
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23. Engraving apparatus in which scribing means engraves a generally planar work piece in response to movement of a stylus following a two dimensional pattern to be engraved wherein said scribing means moves in a path defining a curved surface to engrave a minature two dimensional reproduction of said pattern traced by said stylus, said scribing means moving unitarily in response to stylus movement so that left-to-right and front-to-rear movement of said stylus respectively produces left-to-right and front-to-rear movement of said scribing means, comprising:
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a. a stylus movable within a two dimensional pattern defined by a template; b. said template being supported by a base; c. a sleeve receiving said stylus and extending upwardly therefrom; d. a spring within said sleeve biasing said stylus downwardly; e. a column extending upwardly from said base, displaced laterally from said stylus and said sleeve; f. a plate extending laterally from said column; g. a spherically rotatable pivot member within an aperture in said plate and supported by said plate, rotating freely about its center and receiving in a lower portion thereof an end of said sleeve opposite said end receiving said stylus; h. a bearing mounted on said plate; i. a lever journaled in said bearing; j. a work piece holder secured to said lever, for holding said work piece to be inscribed; k. scribing means extending from said pivot member below the center of rotation thereof movable unitarily with said pivot member, a scribing point in the end of said scribing means remote said pivot member being provided for contacting a work piece held by said work piece holder; and l. means for biasing said lever about a fulcrum defined by said bearing to urge said work piece against said scribing means as said stylus follows said pattern.
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Specification