Patent No. 936011A: Apparatus For Making Malt

Today in 1909, US Patent 936011 A was issued, an invention of George J. Meyer, for his “Apparatus For Making Malt.” There’s no Abstract, although in the description it includes these claims:

Heretofore malting has usually been effected by tumbling barley or other grain around in rotatable drums or turning the same over periodically by hand or mechanical shovels while the same is supported in thin horizontal layers on a floor or in shallow boxes. None of these systems utilize the overhead space in the rooms of malt houses and therefore are not economical in this respect,

One of the objects of this invention is to utilize this overhead space to the fullest extent and thereby increase the malting capacity of a building of certain dimensions.

My invention has the further object to simplify the means whereby malting is effected so as to reduce the cost thereof and also insure a more thorough mixing of the barley from time to time during the malting operation so as to insure a more uniform product.


Patent No. 4165388A: Torrefied Barley For Brewer’s Mashes

Today in 1979, US Patent 4165388 A was issued, an invention of Robert D. Bryce, for his “Torrefied Barley For Brewer’s Mashes.” Here’s the Abstract:

Torrefied, expanded barley for use as a partial replacement for malt in brewer’s mashes is prepared by heating unmalted barley having a protein content of at least about 12% to a temperature sufficient to expand the barley to a degree that a given volume of barley before heating weights about 1.4 to about 1.75 times the weight of the same volume of barley after heating. Before heating, the unmalted barley preferably has a moisture content of about 12% to 20% by weight.


Patent No. RE10509E: Mash Cooler

Today in 1884, US Patent RE10509 E was issued, an invention of Frederick O. Kunz, for his “Mash Cooler.” There’s no Abstract, although in the description it includes these claims:

This invention relates to an apparatus for cooling mash to the fermentation temperature, which is simple in construction, effective in operation, and capable of being thoroughly cleaned with facility. The apparatus comprises a vertical column or chamber, which is traversed by a series of water conducting pipes, and is provided with detachable outer walls and doors for gaining access into the interior of the column and the tubes, for cleaning and other purposes. The water-tubes extend through the shell of the vertical column and lead into small non-communicating chambers formed between the shell of the cooler and the outer walls. The object of these chambers is to cause the water circulating through the tubes in an upward 0 direction to take a circuitous or zigzag course and flow out at the top of the cooler. The mash to be cooled flows into the cooler at the top thereof, and is strained and thrown down over the pipes in the form of a shower, and it makes its exit at the bottom of the cooler and passes through a vertical stand-pipe and escapes at the top of the latter, being then of a temperature suitable for immediate fermentation in the customary fermenters.


Patent No. 3897569A: Malting

Today in 1975, US Patent 3897569 A was issued, an invention of Ronald Horgan, for his “Malting.” Here’s the Abstract:

An improved malting process comprises the steps of steeping barley or other cereal grain to initiate germination thereof, subjecting the germinated grain to a treatment to restrict further growth and respiration of the grain, and malting the grain in a relatively short period. The treatment may be a mechanical treatment such as pumping the grain in water, or it may be a temperature or chemical treatment. The subsequent malting may be carried out at a temperature between 20 DEG and 40 DEG C and the malting period is less than 48 hours.


Patent No. 456872A: Process Of Manufacturing Malt

Today in 1891, US Patent 456872 A was issued, an invention of Frederick W. Wiesebrock, for his “Process of Manufacturing Malt.” There’s no Abstract, although in the description it includes these claims:

It is the purpose of my invention to provide a novel process for the manufacture of malt to be used in the production of fermented liquors, said process being of such a character that it may be practiced at all seasons of the year. It is my purpose, also, to materially cheapen the production of malt, to render the same independent of skilled labor, and to produce more uniform and better results than have been attainable heretofore.


Patent No. 3679431A: Wort Production

Today in 1972, US Patent 3679431 A was issued, an invention of David Henry Clayton and John Karkalas, for their “Wort Production.” There’s no Abstract, although in the description it includes these claims:

This invention is concerned with improvements in or relating to wort production.

– Wort contains in addition to fermentable carbohydrates, soluble nitrogeneous compounds. Barley malt is the traditional raw material for the production of wort since it provides a source of carbohydrates and “nitrogen com pounds and in addition provides the enzymes capable of degrading the carbohydrates and nitrogen compounds to the soluble components of wort.

Malt is manufactured from e.g. barley by the process of malting. This consists of first germinating and then drying barley grain under controlled conditions.

The manufacture of malt is expensive because (1) large capital investments are necessary for the malting machinery, (2) a skilled labour force is required to operate the malting machines, (3) malt can only be made successfully from the higher qualities of barley which are expensive and (4) during the malting process a physical loss in dry matter occurs; this is known as the malting loss.

It is an object of the invention to provide an improved method of producing a wort in which the use of barley malt is reduced or virtually eliminated.

We have found that wort may be produced by treating an aqueous slurry of starch and protein-containing plant material for example unmalted cereal grain e.g. It appears that said hydrodynamic conditions result in the formation of a homogeneous mass very suitable for the action of the starch liquefying enzyme. Examples of starch and protein-containing plant materials other than cereals include roots, fungi material and by-products of processes to which ‘cereals have been subjected.

Examples of suitable materials include tapioca and rice, as well as wheat, barley and maize.

The invention provides a method of producing wort from an aqueous slurry of starch and protein-containing plant material comprising the steps of liquefying starch by treating the slurry with a commercial starch liquefying enzyme subjecting the slurry to hydrodynamic conditions such that a substantial thixotropic reduction of viscosity is produced by shearing forces in the slurry to facilitate the action of the starch liquefying enzyme prior to any substantial reduction of viscosity resulting from the enzymatic liquefaction converting starch to sugar by treatment with a saccharifying enzyme and converting protein to soluble nitrogen-containing compounds by treatment with a proteolytic enzyme.

The invention also provides wort when produced by a method as set out in the last preceding paragraph.

The invention also provides a process for brewing beer including such a method.

The invention also provides beer when produced by such a process.

The invention also provides a process of producing a concentrated wort syrup by concentrating wort produced by such a method.

The invention also provides a concentrated wort syrup when produced by such a process.


Patent No. 2683594A: Grain Drying Machine

Today in 1954, US Patent 2683594 A was issued, an invention of Harvey J. Davis and Eugene Martenson, for their “Grain Drying Machine.” There’s no Abstract, although in the description it includes these claims:

Our invention relates to improvements in grain drying machines for small grain, especially oats, wheat, rye, barley and corn.

The primary object of our invention is to provide an efficient portable machine for removing, under the action of heat a sufficient amount of moisture from such grain to prevent molding, but, without damaging the grain as regards germination, color, odor, or taste.

Another object is to accomplish the above while agitating the grain so that it will be uniformly but slowly dried under the action of heat at a low temperature.

Still another object is to provide a machine for the above purposes which is economical to manufacture, use and service, and easily cleaned.


Patent No. 406486A: Steeping Tub For Steeping Barley

Today in 1889, US Patent 406486 A was issued, an invention of Fritz Susemiehl, for his “Steeping Tub For Steeping Barley or Other Grains.” There’s no Abstract, although in the description it includes this summary:

My invention relates to improvements in steeping-tubs for steeping barley and other grain, in which the form of the tub is preferably globular, except at its top, and having a spout or mouth-piece on its upper edge at one side similar in form to those found in pitchers, the water being conveyed into the tub through perforations in exit-tubes in connection with compressed air passed through same by means of an air force-pump, the tub or vessel laving a false perforated bottom with trap-door connecting with a conveyer-pipe passing out through the bottom of the vessel; and the objects of my improvements are, first, to permit the barley or other grain and refuse foreign matter floating on top of the water to be discharged from the vessel or tub through its spout or mouth-piece; second, to cause the Water to be discharged with great force in the vessel through the perforations in the exit pipes, to stir and agitate the grain in the vessel, and thus cleansing it from dirt and foreign substances adhering to it; third, to permit the dirt and foreign substances wash ed off the grain, which sink, to pass through the perforations of false bottom and lie upon the real bottom of the vessel, thus separating the same from the cleansed grain, and, fourth, to provide means for expeditiously removing the cleansed grain, after its proper treatment, from the vessel by means of a trap-door through the false bottom and a conveyer pipe leading therefrom through the bottom of the vessel. I attain these objects by the mechanism illustrated in the accompanying drawings, in which Figure l is a front view of the steeping-tub. Fig. 2 is a view of a vertical section of the same. Fig. 3 is a top view of the false bottom. Fig. `1i is a top view of one of the arms of the water and air pipes. Fig. 5 is a vertical section of the same on the line :roc ofFig. 4, the exit-pipes being removed; and Fig. 6 is a detail view of the means of attaching one


Patent No. 431246A: Mash Machine

Today in 1890, US Patent 431246 A was issued, an invention of Andrew W. Billings, for his “Mash Machine.” There’s no Abstract, although in the description it includes this summary:

My invention relates to certain improvements in the apparatus for and method of manufacturing beer set forth in Letters Patent No. 324,523, granted to me August 18, 1885; and my invention consists in combining and heating the materials forming what I term the supplemental mash, which consists of raw grain and malt mixed in proper proportions and under conditions as set forth in said patent, as fully set forth hereinafter, so as to adapt the operation to the character of the material acted upon and reduce the length of time required in making the supplemental mash, and also in certain improvements in the apparatus. In this class of apparatus, as ordinarily constructed, the stirrer blades are immovably fixed in position, or are so arranged and fitted for the one kind of mash to be made that they cannot be used for anything else than for an ordinary mash, nor can they be changed in any manner, and they fail to so agitate the mass as to maintain all parts at the same temperature and in the same condition. In the apparatus as constructed by me the blades are easily and readily changed as to number, position on the arms, their angle to the arms and each other without any danger of their working loose while in motion, thus enabling me to make either a very thick or thin mash and successfully operate with any kind of grain (malted or unmalted) or starch, maintain all parts in the same condition, obtain the largest possible percentage of extract, and to use a very much larger percentage of the raw grain.


Patent No. 192292A: Improvement In Malting Of Grain

Today in 1877, US Patent 192292 A was issued, an invention of Jules Alphonse Saladin, for his “Improvement in Malting of Grain.” There’s no Abstract, though it’s described this way in the application:

The object of my invention is the malting of grain, barley for breweries, or any other grains, and consists in causing grain to germinate in very thick layers (one meter or more) and in ventilating and stirring it mechanically, so as to obtain a great saving in manual labor over the old process, although producing with great regularity, and throughout the whole year, a malt of superior quality.

The apparatus and means used are as follows: First, a soaking-tub; second, a germinating-box; third, damp and cool ventilation fourth, a stirring apparatus fifth, a mode of carrying or transferring the grain from one apparatus to the other.