Patent No. 765112A: Beer-Cooler Tank

Today in 1904, US Patent 765112 A was issued, an invention of Robert Surry Valentine, for his “Beer-Cooler Tank.” There’s no Abstract, although in the description it includes this summary:

The object of the invention is to provide a construction of tank of the type referred to which will admit of the thorough cleansing thereof with facility; and to this end the invention includes the combination and arrangement of parts to be hereinafter described, and particularly pointed out in the claims.


Patent No. 764657A: Pasteurizing Apparatus

Today in 1904, US Patent 764657 A was issued, an invention of William Clasmann, assigned to Pabst Brewing Co., for his “Pasteurizing Apparatus.” There’s no Abstract, although in the description it includes this summary:

This invention relates particularly to apparatus for pasteurizing or sterilizing bottled beer and other products, beverages, food, or perishable substances contained in sealed or closed receptacles-such as bottles, cans, jars, and the like.

The main objects of the invention are to gradually heat the beer or other material to be treated to a pasteurizing temperature, to hold it at that temperature for a certain time and then graduallyT cool it, to save heat, to avoid waste of water, to economize space, and generally to improve the construction and operation of apparatus of the class to which the invention relates.


Patent No. 2772975A: Injecting Of Hops In The Brewing Of Beer

Today in 1956, US Patent 2772975 A was issued, an invention of Frank Otto Rickers, assigned to the Geo Wiedemann Brewing Co. Inc., for his “Injecting Of Hops In The Brewing Of Beer.” There’s no Abstract, although in the description it includes this summary:

It is an object of the present invention to provide for the addition of the hops to a brew kettle in a manner such that the hops will be uniformly distributed through the brew and for greatly increased control over this step of the brewing so any deteriorating effect is prevented by storing in cold temperature so that the loss of hops up the flue will be minimized. Thus, it is an object of the present invention to provide process to the end that each successive brew will have undergone the same length of time in the cooking of the same amount of hops.

Briefly, in the practice of my invention I provide means for insuring that the hops, as they are added to the kettle, are wetted down and caused to enter below the surface of the brew in a rather closely confined area and I provide for a localized ebullition and circulation of the brew such that the lumps or fragments of hops are carried by this localized ebullition and circulation down into the bottom of the kettle whence they are uniformly distributed by the general circulation in the kettle.


Patent No. EP0668347B1: Pan For Boiling Wort During Beer Production

Today in 1999, US Patent EP 0668347 B1 was issued, an invention of Martin Widhopf, assigned to Anton Steinecker Entwicklungs GmbH, for his “Pan For Boiling Wort During Beer Production.” There’s no Abstract, although in the description it includes this summary:

A wort kettle for boiling wort for brewing, comprising a vapor escape pipe and a vapor compressor, wherein vapor can escape to the outside via said vapor escape pipe during heating of said wort kettle and can be diverted by means of a shut-off device via said vapor compressor during boiling, characterized in that said shut-off device is formed by a surge tank which is arranged in the flow direction of said vapor in said vapor escape pipe after a branch towards said vapor compressor.

Patent No. 733284A: Process Of Converting Wort Into Beer

Today in 1903, US Patent 733284 A was issued, an invention of Otto Selg and Carl Guntrum, for their “Process of Converting Wort into Beer.” There’s no Abstract, although in the description it includes this summary:

This invention relates to an improved continuous process of converting wort into beer or other fermented liquid in a single apparatus and in such a manner that the beer is first thoroughly fermented and clarified before being impregnated with the carbonic acid gas. In this way the process is accelerated and a better product is obtained.


Patent No. 4844932A: Separation Of Wort From Mash

Today in 1989, US Patent 4844932 A was issued, an invention of Iyadh S. Daoud, assigned to The Brewing Research Foundation, for his “Separation of Wort From Mash.” Here’s the Abstract:

A barrier cross-flow separation method is used to separate wort from mash in beermaking. The separator medium is preferably a cylindrical element with an internal diameter of at least 20 mm and a pore size in a range of from 10 μm to 100 μm. High gravity wort is obtainable from a four-step separation process which can handle mash free of husk and including large amounts of cereal adjunct. The wort may be clarified in a subsequent filtering step.


Patent No. 2513765A: Mashing And Lautering Apparatus For Brewing

Today in 1950, US Patent 2513765 A was issued, an invention of Arthur B. Webb, assigned to the Cream City Boiler Company, for his “Mashing and Lautering Apparatus For Brewing.” There’s no Abstract, although in the description it includes this summary:

This invention relates to mashing and lautering equipment for use in brewing, and has as its general purpose to provide a combination mash and lauter tub or tank of simplified and improved construction.

Although this invention is primarily concerned with the construction of the aufhack or agitator which keeps the mash suitably agitated during mashing and lautering, and the plow or scraper by which the spent grain is swept out of the tank at the completion of the lautering off period, it will be advantageous to briefly outline the steps followed in mashing and lautering.

The mashing operation consists in cooking the grain in water to convert its starch content into sugar. This may be done in a separate tank, or as contemplated by the present invention the mashing and lautering may be done in the same tank.

Lautering is the drawing off of the extract or liquor from the bottom of the tank. During this procedure the mass is gently agitated, and towards the end of the lautering off, sparging water is sprayed over the contents to flush out all possible extract from the grain. At the completion of the lautering’ and sparging when all of the extract has been drawn off, the spent grain is discharged from the tank through a trapdoor in its bottom. I

In the lautering 01f of the extract the bottom layer of the mass serves as a filter bed. Hence, it is extremely important that this bottom layer be left undisturbed. If it is broken or disturbed, the extract being lautered off becomes turbid. Such breaking of the bottom filter layer thus entails long periods of quiescence to allow the turbidity producing particles to settle out and enable the bed to reform.

Satisfactory lautering, therefore, poses two difficult problems. To assure flushing all the extract from the mash, it is essential that the sparging water reach all portions thereof, and this requires having the aufhack or agitator blades reach down into the mass as far as possible. On the other hand the bottom layer which serves as a filter bed must not be disturbed. It thus follows that the extent to which the agitator blades can be lowered bears a relationship to the spacing between adjacent blades, for blades that are spaced far apart can be brought down closer to the bottom without breaking the bottom layer than blades that are spaced closer together past the desired wide spacing between adjacent blades has been achieved by increasing the number of radial arms-which carry the blades and, of course, staggering their radial distances from the axis of rotation so that the circular paths defined by the blades in operation are quite close together although the distance between adjacent blades is much greater. This obvious solution to the problem of effecting increased spacing between adjacent blades entailed the objection of having the inside of the tank cluttered up with mechanism.

As a result cleaning the tank became a tedious task. In such cleaning, the segmental screen sections which form the false bottom of the tank have to be lifted and are generally set up against the side wall of the tank. Inasmuch as these sections are quite large the presence of three (3) or more agitator arms inside the tank became a source of much inconvenience and irritation. Practically every time a screen section was lifted the agitator had to be moved.

With this objection in mind, the present invention has as one of its objects to provide an improved aufhack or agitator wherein only a single pair of arms carries all of the agitator blades, but in a manner spacing the operating portions of the blades and particularly the lower ends thereof far enough apart to preclude breaking the bottom filter layer, even though the blades are lowered to within a short distance from the false bottom.

As can be readily appreciated, the agitator blades in cutting through the relatively compacted mass, leave circular channels in their wake which if not closed allow the sparging water to by-pass portions of the mass with the result that all the portions of the grain are not flushed as effectively as desirable. Hence, it is another object of this invention to provide means for closing up the circular channels cut into the mass by the blades as they sweep around the tank.

More particularly it is an object of this invention to provide a novel trowel member adapted to ride upon the surface of the mass in a position trailing the agitator blades so as to close the circular channels formed by the blades.

Another object of this invention is to utilize the same structure for effecting the desired troweling action to also plow or scrape the spent grain into the discharge opening at the completion of the lautering off step and also serve as a mixing agitator during the mashing operation.

Another object of this invention is to so mount and arrange the combination plow and trowel structure that upon rotation of the agitator so that the top of the pedestal is submerged in the tank contents, the matter of providing adequate lubrication for the working parts without danger of having the lubricant seep out into the tank contents has always presented a problem.


Patent No. 654788A: Ale Or Beer Filter

Today in 1900, US Patent 654788 A was issued, an invention of Alfred E. Feroe, for his “Ale or Beer Filter.” There’s no Abstract, although in the description it includes this summary:

My invention relates to an improved ale and beer filter for brewery use.

The object of my improvement is to provide a device of a very large capacity, simple in construction, strong, durable, and efficient in operation, and of as few parts as is consistent with perfect work.-

To attain these ends the invention comprises a series of filter-sections which when put together form a series of compartments. Each compartment has inlet and outlet passages and means for filtration and is a complete filter in itself.


Patent No. 2006450A: Capping Machine

Today in 1935, US Patent 2006450 A was issued, an invention of John J. Gaynor, for his “Capping Machine.” There’s no Abstract, although in the description it includes this summary:

This invention relates to capping machines, or more particularly to bottle crowners of the double head type.

One of the objects of the invention is to provide such a machine of the simplest construction with a minimum number of actuating parts so as to promote compactness, and at the same time insuring reliability and effectiveness in operation; and whereby the caps as applied to containers by both capping heads will be uniform.

Another object of the invention is to provide such a capping machine that can be closely arranged in cooperative relation with the container conveying means of a rotary type container filling machine, so that the containers will be capped shortly after being transferred to the capping heads of the capping machine alternately. The type of filling machine referred to includes a circular rotating container conveyor having peripherally arranged vertically reciprocal container supports in which the containers are placed to be raised into filling heads which depend from the circular liquid supply tanks placed above the conveyor and connected to rotate therewith. As a rule the tank is of greater diameter than the conveyor, which relation of parts presents the problem in arranging the capping mechanism in close cooperative relation with the conveyor.


Patent No. 1271269A: Manufacture Of Non-Alcoholic Malt Beer

Today in 1918, US Patent 1271269 A was issued, an invention of Louis Block, for his “Manufacture of Non-Alcoholic Malt Beer.” There’s no Abstract, although in the description it includes this summary:

acter to that known in the art as lager beer with the difference that What I now refer to as malt beer shall contain no alcohol or only a very small percentage thereof, while its nutritious and refreshing qualities are practically the same as that of lager beer. I shall now describe the process of manufacture so that others versed in the art may understand and follow it. The first steps in my process are in a general way the same as employed in the manufacture of lager beer or ale. I mash the malt, malt adjuncts or cereal products, boil the Wort, cool it and ferment it.