ocr: D - HUBERTBOOTH E. BOURDON : 1871-1955 1808-1884 E HE VACUUM HE BOURDON GAUGE takes its . CLEANER was name from E. Bourdon, a H invented by French watchmaker who invented an English civil the gauge in 1845. While in his engineer named workshop one day, Bourdon K Hubert Booth. happened to notice that a flattened L One day in 1901, Booth watched circular piece of tubing straightened N M workmen ceaning a railroad car by out as air passed through it. He blowing dirt with compressed air. immediately set to work on creating Seeing that the dust just settled an instrument that used this again, he de ...
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