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US 4,388,631 AGranted
Chart recorder
AssigneeChessell Limited
InventorJohn Houldsworth
Life of this patent
Estimating the term…
Abstract
A chart recorder is described in which the writing head is rotatable by a motor to position any one of several writing tips over the paper. The motor is mounted on the same carriage as the writing head for movement relative to the paper.
Claims11
A chart recorder for producing a record of a plurality of 2 parameters, the recorder comprising;
- means for supporting a recording medium and for feeding the same forward;
- a writing head;
- means mounting the writing head for movement transversely of the recording medium, and means for moving the writing head transversely of the recording medium;
- a rotatable holder forming part of the writing head;
- a plurality of writing tip means supported by the 11 rotatable holder and circumferentially spaced about the 12 periphery of the rotatable holder;
- and
- an axial field motor movable transversely with the rotatable holder, for rotating the rotatable holder to 15 select a writing tip means in dependence upon parameter being recorded.
4 more elements
Dependencies are inferred from the claim text.