G - Physics – 01 – F
Patent
G - Physics
01
F
314/37, 340/144.
G01F 23/22 (2006.01) G03G 15/08 (2006.01)
Patent
CA 1138555
ABSTRACT OF THE DISCLOSURE Disclosed is a device for indicating that the level of a dosable material has fallen below a predetermined level in a dosing container having a shaft mounted horizontally for rotation inside of the container and a dosing brush mounted on the shaft. This device comprises an elastic contact tongue radialiy fixed to the shaft for rotation therewith, the contact tongue being sufficiently elastic so that it assumes a bent configuration having a first radius when rotated in contact over a predetermined portion of its length with the disable material and so that it assumes an extended configuration having a second radius when rotated so that it is not in contact over the predetermined portion of its length with the dosable material; a contact pin mounted at a distance from the shaft greater than the first radius but not greater than the second radius, so as to be contacted by the contact tongue in its extended configuration; and means for producing a signal when the contact tongue contactsthe contact pin.
335961
Fetherstonhaugh & Co.
Hoechst Aktiengesellschaft
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