Salt Lake Tribune | 1917-03-25 | Page 36 | Writer Makes Huge Mistake in Cadillac Factory

Writer Makes Huge Mistake in Cadillac Factory Failed to Realize Importance Import-ance of One-hundred-thousandth of an Inch. TflE fact that a news writer for th Cadillac company did not fully realise the difference between one ten-thousandth part of an inch and one one hundred-thousandth part brought forth a letter from the makers of the Johansson gauge, calling attention to this difference. A few weeks ago an article was sent out by the Cadillac advertising department depart-ment "stating that the Cadillnc Motor Car company was the first to adopt the Johansson gauge system, accurate to one ten-thousandth part of an inch. This statement resulted in a letter from the Swedish Gauge company. whili handles this gauge, calling attention of the writer to an error in the statement. The Johansson gauge is not accurate to within one ten-thousandth part of an inch, but to within ono one hundred-thousandth hundred-thousandth part of an inch. What is the thousandth part of an inch? Certainly nothing to the sight or touch, yet hundreds of parts in the Ca-illac Ca-illac car must mensuro even more'a'--curate to he accepted. It is less tlurii hnlf the thickness of a hair. It is one-tenth one-tenth the thickness of a visiting card. Then think of one one hundred-thousandth part of it. There really doesn't seem to be anything to think of to the ordinary man. Tn the Cadillac automobile there' are 3 a thousand dimensions accurate to the one-thousandth part of an inch ami J"'' accurate to half a thousandth part an inch. In setting a thousandth of an inth standard for itself the Cadillac- company com-pany established a wonderful system for carving it out. The machines in the Cadillac factory could not be mure ac-i ac-i curat;-.