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The next months were spent building rollers for prototype and regular test stands from discar- ded gas cylinders and oxygen cylinders (welding technology). Local scrap yards sold them for little money; each brake tester required two empty gas cylinders. The gas cylinders were cut to size in Josef Schil- lings workshop using iron saws and on both sides a cover with a bearing pin was welded on. Lengthwise slots (grooves) were milled in for better grip between tire and roller. The roller tester was equipped with a hydraulic measurement system and two easy-to-read analog instrument dials for display of brake force left and right. As luck would have it, before the test stand could even be installed in J. Schillings workshop, an interested buyer in Kempten snatched it away. Since the original idea had been to build a brake tester for their own use, the two men now decided to build two more testers - one for themselves and one to sell.... Said and done – two test stands were built and immediately bought by Josef Tomiceck from Dietmannsried, a small village a few miles down Necessity is the mother of invention ... 1968 11 the road from Haldenwang. And without further delay production started on another 5 brake testers JW1 (Josef, Winfried, No. 1) ... . Fast forwarding somewhat, let it be said that the test stand originally intended for their own use was never installed in the Haldenwang workshop and the rollers have outgrown their gas cylinder pha- se... . As of May 2009 over 54,000 MAHA Brake Testers have been sold worldwide! It a safe bet to say that Mr. Rauch and Josef Schil- ling never dreamed that their invention would take off as it has.