Brookston Beer Bulletin

Jay R. Brooks on Beer

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Patent No. 2782013A: Lauter Tubs

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Today in 1957, US Patent 2782013 A was issued, an invention of Edwin L. Dittrich, assigned to Pfaudler Co. Inc., for his “Lauter Tubs.” There’s no Abstract, and the OCR didn’t work very well on this one, so it’s hard to read. What I can make out is that “this invention relates to lauter tubs and has for its object to provide several improvements thereto.

A lauter tub is essentially a device for straining wort liquid from the mash-grains; and comprises -a perforated false bottom resting on and separated from the tank bottom itself by spacer studs attached to the false bottom. The tank bottom is provided-with suitable drainage openings. The invention provides a combined gear drive and hydraulic system unit motivating the shaft which revolves in a universal bearing attached to the bottom of the tank, said shaft having vertical freedom of movement through out lifting the false bottom.”
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Patent No. WO1999007820A2: Lipid Removal

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Today in 1999, US Patent WO 1999007820 A2 was issued, an invention of Charles Bamforth, Dickie Kamini, and Robert Muller, for their “Lipid Removal.” Here’s the Abstract:

A method for removing lipids material from beer or other beverages. The beer is contacted with immobilized lipid binding protein which binds any lipid present in the beer or other beverage. After the lipid removal stage is complete there are no lipid binding additives remaining in the beverage.

This patent is particularly notable because one of the inventors is UC Davis brewing professor Charles Bamforth. And while he holds a few British patents, this is the only American one that turns up on Google’s patent search.
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A Compendium Of Alcohol Ingredients & Processes

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Here’s an interesting infographic, The Compendium of Alcohol Ingredients and Processes, created by WineBags.com, a promotional items company catering primarily to the wine industry. It shows 48 different beverages containing alcohol, graphically showing the ingredients and how they’re combined. Beer, of course, is one of the drinks shown:

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But it’s fascinating to see so many different drinks side by side, showing both the similarities and the differences, some of which are fairly small.

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Click here to see the compendium full size.

Patent No. 2416007A: Method Of Clarifying And Stabilizing Beer

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Today in 1947, US Patent 2416007 A was issued, an invention of Hans Joachim, for his “Method of Clarifying and Stabilizing Beer and Like Beverages.” There’s no Abstract, but it’s described as an “invention relates to a process for treating beer or similar beverages, whereby the beverage is improved in clarity, stability and qualities of brilliance and sparkle, and which preserves and enhances taste and bouquet of the product.”
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Patent No. 3867551A: Preparation Of Beer

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Today in 1975, US Patent 3867551 A was issued, an invention of Yves Germain Jaegle, for his “Preparation of Beer.” Here’s the Abstract:

Beer is prepared by a process wherein groups of batches of wort are turned serially at temperatures increasing from 10 DEG to 14.5 DEG C into a cylindrical, vertically disposed vat having a conical bottom. Convection currents are instituted to homogenize the contents of the vat and fermentation is carried out until a beer of the desired degree of fermentation is formed. The resultant beer is mellowed by a warm keep phase, cooled and subjected to a cold keep phase.

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Patent No. 5718161A: Beer Brewing System And Method

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Today in 1998, US Patent 5718161 A was issued, an invention of Leigh P. Beadle, for his “Beer Brewing System And Method.” Here’s the Abstract:

There is provided a system for brewing beer particularly suited for a brew pub setting. The invention utilizes a cooker to heat water and a pre-blend syrup of ingredients. Once the beer mixture is boiled for a sufficient length of time in the cooker, the mixture is transferred to a brewing vessel. A spiral spray nozzle is used to add water to the brewing vessel in a conical spray pattern which causes the water to be oxygenated once it passes through the spiral spray end of the nozzle. Yeast is added to the brew mixture and oxygenated water in the brewing vessel. The beer mixture is permitted to ferment in the brewing vessel for a sufficient length of time. The fermented beer mixture is transferred to a plurality of kegs, each of which contains a mixture of sugar and gelatin. The sugar and gelatin allow the beer mixture and age and clarify. Once the beer mixture has aged a sufficient time, the beer mixture is dispensed from the kegs. The system of the invention includes a keg cleaning device for simultaneously depressurizing the keg while hooking up the device to the keg.

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Patent No. 253683A: Apparatus For Raising Beer

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Today in 1882, US Patent 253683 A was issued, an invention of Peter J. Catterall and Edward Birch, from Manchester, England, for their “Apparatus for Raising Beer.” There’s no Abstract, but the application states their “invention relates to apparatus for raising valves, through one of which the liquid is admitted to the chamber, and through the other the liquid is forced to the bar or delivery-tap” and there “is a section of the three-way tap that admits and discharges the water used to raise the beer or other liquid.”
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Patent No. 491939A: Process Of Producing Pure Cultivated Pressed Yeast

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Today in 1893, US Patent 491939 A was issued, an invention of Charles A. Hansson, for his “Process of Producing Pure Cultivated Pressed Yeast.” There’s no Abstract, but the application begins by stating that he’s “invented certain new and useful Improvements in Processes of Producing Pure Cultivated, Pressed Yeast, of which the following is a specification.”

For the production of a pure cultivated pressed yeast it is necessary to have the fluid out of which the yeast is to receive its nourishment free as far as possible from foreign ferments and bacteria, that is sterilized.

According to methods heretofore used in the manufacture of yeast the sterilizing of this fluid could not have been effected to any advantage because, as the theories now existing indicate, the pepsin and not the lactic acid (the latter serving merely as a mediator) acts as a converter of the albumin into peptones, and as the pepsin contained in the grain is insufficient to transform all albuminoids in the mash into peptones, a comparatively small part of it was so transformed, and the greater part would, consequently, during the process of sterilizing, coagulate and thus be rendered insoluble, that is useless as nourishment for the yeast plant. To overcome this difliculty I make use of an additional increment of pepsin, by adding to the mash, a reinforcing quantity of pepsin and by leaving the mash under the influence thereof, together with some inorganic acid, (when necessary) and at a temperature most favorable for the pepsin, whereby much more of the albumin contained in the raw material is transformed into peptones, and I acquire a fluid which may be submitted to heating sufficiently for sterilizing with but little or no detrimental coagulation of albumin. Through the heating process I am enabled to procure a fluid sufficiently sterilized and thereby practically prepared for a pure cultivated yeast.

Having the fermenting tub covered and introducing into the fluid by mechanical means, sterilized air favorable for the development of the yeast, I avoid its infection which would take place should the fermentation be carried out in the usual way.

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Patent No. 812243A: Circulating System For Beer-Filters

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Today in 1906, US Patent 812243 A was issued, an invention of Max Stahl, for his “Circulating System for Beer-Filters.” There’s no Abstract, but Stahl describes his invention as an improvement over then-current systems, saying his “invention aims to and does overcome the losses and disadvantages [mentioned earlier in the description], and in brief it consists of providing means whereby the column of beer can be switched off the racking-bench and continuously returned to the filter until stable relations are secured and the beer no longer runs cloudy or contains fibers of filter mass.”
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Patent No. 2823125A: Apparatus For And Process Of Fermenting Beer

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Today in 1958, US Patent 2823125 A was issued, an invention of Frank H. Schwaiger, assigned to Anheuser-Busch, for his “Apparatus for and Process of Fermenting Beer.” There’s no Abstract, but in the description it states the following:

One of the principal objects of the present invention is to provide an improved fermenter which can be fabricated from stainless steel and which requires no overhead chamber for capturing foam which must necessarily rise upwardly into said chamber. Another object is to provide an improved fermenter which requires no special housing, which is easily housed on a single floor of a building, which can be easily cleaned, which requires less space per unit capacity, and which separates the foam from the beer more completely and more efficiently. Another object is to provide a fermenter construction which moves the foam automatically toward the foam chamber. Another object is to provide a fermenter which without moving parts automatically prevents beer from spilling over a baffle into the foam chamber even though the beer increases in volume during fermentation. Another object is to provide a fermenter which can be fabricated in a metal fabricating shop, shipped to the brewery, and placed upon a suitable base therein.

Another principal object of the present invention is to provide an improved process wherein the foam condensate is directed back into the manufacturing process at a different point from where the foam was taken. Another object is to provide a process wherein the foam condensate can be filtered or treated before it is redirected into the process.

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