Automatic thermograph
AssigneeKabushiki Kaisha Saginomiya Seisakusho
InventorsSatoshi Watanabe, Koji Sato
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Abstract
An automatic thermograph comprising a means for sensing a variation of temperature by use of a gas and a gas absorbing substance container therein; a recording section including a means for coverting said variation of temperature into a variation of pressure, a means for counteracting said converting means for actuating a lever according to the variation of pressure to turn a nib fixed on an extension of said lever and record the variation of temperature; and a cartridge containing therein a chart paper and removably attached to the recording section. With this invention, collecting data for controlling temperature in a cooled show-case or in a reservoir of perishable foods, blood or vaccines can be done with a thermograph which is low-priced, small-sized and easy to handle.
Claims2
An automatic thermograph comprising a means for sensing a variation of temperature which contains a gas and a gas absorbing substance;
- a recording section including a converting means for converting said variation of temperature into a variation of pressure, a means for counteracting, with a predetermined pressure, said converting means and an actuating means for actuating a lever according to the variation of pressure to turn a nib attached to an extension of said lever and to record, on a sheet of chart paper continuously fed, the variation of temperature, said actuating means comprising a first means displaceable according to the variation of pressure and a second means for converting the displacement of said first means to a pivotal movement of said lever and regulating a magnitude of the pivotal movement of said lever;
- and a cartridge having said sheet chart paper contained therein and being removably attached to the recording section.
Dependencies are inferred from the claim text.