Electrically Heated Stages

as devised by Dr. F. Jentzsch*)

Electrically Heated Stage as it appears when set upon the stage of the microscope

These Heating Stages are adapted for use on the object stage of any microscope, and, if necessary, thejr may be fixed thereon by means of large clips.

As a rule, the requisite heat energy is derived from the ordinary supply system, the temperature being regulated by the interposition of a rheostat. The apparatus is so designed that by varying the strength of the current temperatures up to 800° C. may be realised without any risk of damaging it. An accumulator will serve where it is intended to work at moderate temperatures only.

To protect the heating apparatus from damage by over running through an error in the manipulation of the regulating resistance**) we fit the latter with a limit step to the sliding contact.

*) Felix Jentzsch. Ein elektrischer Heizapparat fur mikroskopische Beob-achtungen. Z. f. wissenschaftl. Mikroskopie, Vol. XXVII, pp. 259—264, 1910.

**) To enable us to quote for, or supply, a suitable resistance adapted for the available circuit and the required range of temperatures correspondents will facilitate matters by furnishing with their initial enquiries particulars of the nature of the local supply system, its voltage, and the required temperature.

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Le texte affiché peut comporter un certain nombre d'erreurs. En effet, le mode texte de ce document a été généré de façon automatique par un programme de reconnaissance optique de caractères (OCR). Le taux de reconnaissance estimé pour cette page est de 99,10 %.

La langue de reconnaissance de l'OCR est l'Anglais.

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