sample="supplemental" bates="655004405" isource="bw" decade="1980" class="ne" date="19860210" BROWN AND WILLIAMSON TOBACCO CORPORATION Mike 8/11/86 Sorry about the delay in getting the information to you. I had to wait longer than expected Mr. Jacques Habbelinck BAT Benelux ETS. ODON WARLAND S.A. Rue de Koninck 38 B. 1080 Brussels Belgium Dear Jacques: I thank you for making your time available to me when I visited Brussels on January 13. The discussion , we had was very useful to me, and I am now exploring the application of DOQ units in our own factory. I have enclosed an engineering drawing and the test procedure for the manual aerodynamic groove tester which we have developed at B&W for the inspection of the adequacy of the grooves of the Actron filter rod. This manual test head is used in conjunction with a Celanese pressure drop tester and each filter rod is manually supplied to and removed from the test head. One modification which we have since made which is not shown on the drawing is that the test cell B is now screwed into the base A, and the 'O' rings shown are therefore no longer necessary. We are also developing an automatic version of the aerodynamic groove tester based on a Filtrans automatic ventilation meter. Essentially we have substituted the Filtrona ventilation monitoring test head with a custom built aerodynamic groove test head. However, the development is not yet complete, and consequently, we have not yet prepared documentation on the instrument, however, I have enclosed three photographs of the prototype unit. We would be pleased to share further information with you if you have an interest in the automatic tester when it becomes available. The aerodynamic groove test is just one component of an extensive inspection procedure that we apply to Actron rods. Sincerely, C. P. Radley CPR/jm/574 0857u cc: Mr. E. E. Kohnhorat Mr. J. P. Pittman Mr. M. L. Reynolds Mr. M. Reserton RECEIVED FEB 17 1986