Brookston Beer Bulletin

Jay R. Brooks on Beer

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Patent No. 3332748A: Extraction Of Hop Bitters From Beer With Iso-Octane Using Synchronized Pulses In A Helical Coil

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Today in 1967, US Patent 3332748 A was issued, an invention of Jack Albert Spicer and Max William Betts, for their “Extraction of Hop Bitters from Beer With Iso-Octane Using Synchronized Pulses in a Helical Coil.” There’s no Abstract, although in the description it includes this summary:

This invention relates to the extraction of chemical substances from liquid mixtures and in particular to the extraction of such substances from complex mixtures for purposes of analysis.

In the analysis of a complex mixture, it may be desired to separate one or more constituents of the mixture, by liquid/liquid extraction methods, in order to obtain a relatively simple solution, for example for spectrographic analysis. Thus, for example, it has been proposed to extract hop bitter substances from brewers wort or beer by liquid/liquid extraction with iso-octane, whereupon the solution of the hop bitter substances may be analyzed by ultra-violet spectrographic analysis. The present invention provides an extraction process suitable for use in the separation of desired compounds from such mixtures.

According to the invention, a process for the extraction of a chemical substance from a liquid mixture comprises feeding the liquid mixture and a solvent for the desired chemical substance in synchronized pulses through a horizontally disposed coiled tube, and separating the residual liquid mixture from the solution of the desired chemical substance in the solvent. Preferably the coiled tube is helically coiled.

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Patent No. 998815A: Beer-Making Apparatus

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Today in 1911, US Patent 998815 A was issued, an invention of Ernst Uhlmann, for his “Beer-Making Apparatus.” There’s no Abstract, although in the description it includes this summary:

My invention relates to that portion of the beer making art wherein the wort is treated with hops, and it has for its objects to provide an apparatus for preventing the wort from acquiring an objectionable color and flavor and from a tendency to sour as a result of such treatment.

My invention is designed to overcome these objections and to provide a form of apparatus for rapidly removing the hops from the wort, which shall ‘be simple in construction and operation and require much less floor space for accommodation than apparatus commonly used for the purpose.

In carrying out my invention I remove the hops, albuminoids, and such matter from the wort while the latter is flowing from the brewing kettle to the coolers, so that the wort is freed from these matters almost immediately it leaves the brewing kettle, and does not remain in contact with the hops, etc., longer than a few seconds. Also I remove all the wort from the hops without employment of any mechanical or air pressure.

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Patent No. 1234255A: Process Of Treating Beer

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Today in 1917, US Patent 1234255 A was issued, an invention of Charles S. Ash, for his “Process of Treating Beer.” There’s no Abstract, although in the description it includes this summary:

This invention relates to a process of treating beer; and has for its object to stabilize beer by eliminating the causes of cloudiness and turbidity therein, and also to prevent the development of color and the development of a cooked taste in the beer following pasteurization.

In the brewing and finishing of beer, the aim of the brewer is to obtain a product which is brilliantly clear and transparent and which will so remain under all conditions of subsequent handling.

Beer is rendered turbid or cloudy on standing, particularly in the cold, by reason of the precipitation of nitrogenous bodies. In the process of mashing the grains and making the wort, which is subsequently fermented, a portion of the nitrogenous bodies of the grain is brought into solution. After the fermentation and the aging or lagering to which the new beer is subjected some of these nitrogenous bodies are precipitated and are removed by filtration. After the final filtration the beer is brilliant, but upon storage in the case of keg beer, and upon pasteurization and storage in the case of bottled beer, the beer gradually becomes cloudy and finally turbid.

There are two ways in which this cloudiness and turbidity can be prevented; first, by the absolute removal-of the nitrogenous bodies still held in the lagered beer, which are susceptible to subsequent precipitation through storage or heating or cooling; and, second, by treating the lagered beer in such a manner that these, nitrogenous bodies remain in solution. The first method has never been hitherto successfully accomplished. The second method has yielded results of more or less value and is accomplished by adding to the beer substances known as enzymes, which have the power of rendering these insoluble nitrogenous bodies soluble and hence the beer remains brilliant.

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Two beers with the same color, but different turbidity.

Patent No. 193371A: Improvement In Pumping Apparatus For Raising Beer

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Today in 1877, US Patent 193371 A was issued, an invention of Clement Labuethe, for his “Improvement in Pumping Apparatus for Raising Wine, Beer.” There’s no Abstract, although in the description it includes this summary:

My improved apparatus consists of a special construction and combination of devices, hereinafter described, for transmitting liquids from one cask or vessel to another, and of delivering it for use.

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Patent No. 3825145A: Beer Keg

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Today in 1974, US Patent 3825145 A was issued, an invention of Richard W. Reynolds, for his “Beer Keg.” There’s no Abstract, although in the description it includes this summary:

A beer keg having plastic top, bottom and side walls that are of integral unitary construction, and a tapper mounting member cast in position in the top wall and a filler plug mounted in the side wall.

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Patent No. 4530631A: Pull Tab For Easy Open Can End — Method Of Manufacture Thereof

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Today in 1985, US Patent 4530631 A was issued, an invention of Elton G. Kaminski and Carl F. McEldowney, assigned to The Stolle Corporation, for their “Pull Tab For Easy Open Can End — Method Of Manufacture Thereof.” Here’s the Abstract:

An easy open can end having a retained tear strip extending diametrically partly across the can end defined by a score line, and a graspable pull tab adjacent and outside the open end of the score line. The pull tab is provided with a nose portion to initiate a tear along the score line upon lifting of the pull tab. The edges of the nose portion are curled into a cylindrical cross-sectional shape to provide a high beam strength and to rigidize the nose portion and to prevent failure by bending before the tear strip is opened. A method for manufacture of the pull tab includes forming at least one relief notch in the peripheral edge of the pull tab blank at the nose end thereof, whereby to relieve compressive forces when the edge is curled, and curling the peripheral edge of the nose portion in successive steps to form an edge portion of continuous cylindrical cross-sectional shape.

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Patent No. 1033730A: Self-Sealing Bottle-Stopper

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Today in 1912, US Patent 1033730 A was issued, an invention of William G. Peacock, assigned to the Perfection Bottle Stopper Company, for his “Self-Sealing Bottle-Stopper.” There’s no Abstract, although in the description it includes this summary:

In bottle or other receptacle stoppers of that kind embracing a hollow elastic bulb that constitutes the sealing portion of the stopper which is arranged to be longitudinal y stretched to thereby reduce its diameter when it is inserted into the bottle neck and to thereafter resume its. normal length and diameter to automatically adjust itself to the bottle neck to seal the bottle.

Among the objects of the invention is to simplify and cheapen bottle stoppers of this character and to arrange the parts thereof to be readily assembled.

A further object of the invention is to produce a simple and efficient combined stopper and bottle cap remover.

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Patent No. 3896001A: Malting Processes

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Today in 1973, US Patent 3896001 A was issued, an invention of James Barrett, Brian Heys Kirsop, and Godfrey Henry Oliver Palmer, assigned to Brewing Patents Ltd., for their “Malting Processes.” Here’s the Abstract:

A process for the production of malt comprises removing a part of the husk of the barley, steeping the barley, treating the barley with aqueous mineral acid and with gibberellic acid, and allowing the barley to germinate. The combination of treatment steps is claimed to improve the rate of germination.

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Patent No. 2844299A: Beverage Cooler Carton

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Today in 1958, US Patent 2844299 A was issued, an invention of Theodore F. Hauf and David E. Kessler, assigned to the Pabst Brewing Co., for their “Beverage Cooler Carton.” There’s no Abstract, although in the description it includes this summary:

This invention relates to packages comprising a carton having a number of containers, such as beer cans or the like, packed therein, and the invention refers more particularly to a package of that type which is adapted to be packed with ice for cooling the contents of the containers.

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Patent No. 302282A: Apparatus For Racking Beer

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Today in 1884, US Patent 302282 A was issued, an invention of Johann Pusch, for his “Apparatus for Racking Beer.” There’s no Abstract, although in the description it includes this summary:

My invention relates to an improved hermetic apparatus for racking beer, and is designed as an improvement on the apparatus described in Letters Patent No. 274,516, granted to me March 27, 1883.

As in the apparatus described in the above, named Letters Patent, the object of this invention is to effectually prevent the escape of the carbonic-acid gas contained in the beer during the process of racking; and the improvements herewith made consist, first, in the novel means employed in connection with the barrel-platform for raising and lowering the same; second, in the novel means for clearing the supply-pipes of all beer after the barrel is filled, and, third, in the novel bung-feeding mechanism, all as will be fully described and claimed.

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