WEATHER INSTRUMENT FOR INDICATING COMFORT TEMPERATURE AND RELATIVE HUMIDITY VALUES

摘要

A weather instrument including a hygrometer and thermometer, and means operatively associated therewith for providing an indication of either the temperature or relative humidity required to maintain a predetermined temperature humidity index. In one embodiment, a cam-filament arrangement responds to the sensed ambient temperature to automatically provide an indication of the relative humidity required to maintain a predetermined temperature humidity index, and this indication is displayed in conjunction with the indication of the ambient relative humidity. In another embodiment, a cam-filament arrangement responds to the sensed relative humidity to automatically provide an indication of the temperature required to maintain a predetermined temperature humidity index, and this indication is displayed in conjunction with the indication of ambient temperature. A cam means is provided for adjusting the cam-filament system to provide indications of the temperature or relative humidity required to maintain different predetermined temperature humidity values at different seasons of the year.