Geometrical instruments – Scriber – Pantographic
Patent
1979-09-10
1982-03-02
Haroian, Harry N.
Geometrical instruments
Scriber
Pantographic
B43L 1310
Patent
active
043172873
ABSTRACT:
An inexpensive manual microidentification system includes a carrier card having the workpiece to be engraved mounted thereon and providing a surface for recording the information engraved on the workpiece; and a simple, inexpensive microengraver formed from a scriber mounted on a ball and socket arrangement, and including a stylus for tracing a pattern to be engraved on a workpiece as well as an elongated spindle interconnecting the two and providing a large mechanical advantage to the motion of the stylus relative to that of the scriber. The carrier card is cantilever mounted adjacent to the scriber; this mounting technique, together with the resilient composition of the card, insures a controlled scribing pressure. The workpiece is held out of contact with the scriber by means of a finger pressing against the card and biased by a spring. A slide bar connected to the finger is actuated by the operator to oppose the spring force when engraving is to take place to thereby allow the workpiece to contact the scriber for engraving. Accurate registration of the workpiece and the scriber is insured by apertures formed in the carrier card which is positively located within the mounting. After engraving, the work piece is separated from the carrier card for use, and the card is filed for reference as a permanent record.
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"Identification of Mass Disaster Victims: The Swiss Identification System", Muhlemann et al., Journal of Forensic Sciences, 2/22/78.
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