Today in 1966, US Patent 3232211 A was issued, an invention of William P. O’Malley, assigned to Malley Brewery Ltd. of Montreal, Canada, for his “Continuous Brewing Apparatus.” There’s no Abstract, but there’s this in the description.
The present apparatus is designed so as to incorporate all of the operations and techniques used in the batch process. Thus, by imparting continuity to the individual batch process operations, the result obtained is a continuous brewing process, which can perhaps best be described by the somewhat contradictory statement, that it is the batch process made continuous.
The continuous brewing process of the invention is accordingly based on the principles of batch processing, and it follows that for each unit of the batch process, there must be a corresponding unit for the continuous process.
Since the sequence and nature of the batch operations in any of its units are already established and Well defined, the design of the continuous unit is consequently limited and governed to some extent by the physical aspect of the batch operations for that unit.
As a result, the design of the present continuous unit was made around the operations existing in the batch unit, imparting the added factor of continuity to the operations without altering their character or nature in any way.
In order to duplicate the batch process while maintaining the desired continuity certain new apparatus must be provided to take the place of the apparatus where separate fillings, mixings, restings and withdrawal were necessary with the batch process. With this in mind the present invention provides such apparatus as will be described in more detail later and wherein a main feature resides in the construction of a combination mash and lauter tun designed specifically for continuous operation.