Today in 1935, US Patent 1992261 A was issued, an invention of William F. Traudt, for his “Pulp or Fibrous-Mass Breaker.” There’s no Abstract, but in the description Traudt explains that his “invention relates to improvements ‘in breakers or disintegrators for fibrous material, such as the filter-mass employed in breweries for filtering beer, the breaker of this application being primarily intended for breaking up the soiled or used filter-mass coming from the beer filters preparatory to washing or reclaiming it for reuse.”