USRE3804E - James mccoilmick - Google Patents

Description

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JAMES MoUUltMlCK, UF BOSTON, MASSACHUSETTS.

Leiters Patent No. 96,939, dared Norcmbcr 16, 1869; reissue -No. 3,804, dated Jftufzuuy` 25, 1870.

IMPROVEMENT IN BREWING lALE, BEER, 8cc.

The Schedule referred to in these Letters Patent and making part of the same To all persons to whom these presents shall come:

Bc it known that I, JAMES Mconmck, ot' Boston, in thc county ofbi1lolk,aiid State ofMassachusetts, have invented a new and useful Imprm'ci'nentin the Process of Brewing Malt and other Substances; and that the following, taken in connection with the accompanying plate of drawing, to which reference is hereinafter had, is a full and completo description oi' tbc same.

The object of the present invention is to renwve from wort, that is, thc liquid product or result of malt, subjected to the 1nashing-operation, s termed, in brewing, those elements contained in it either .in astate of solution or suspension, or in both, (such as line docks of coagulated albumen, combined with tannin, starch, mucilaginous mattei', or gums,) which, in completing the brewing oi' ale or beer therefrom, as is well known to brewers, will not only occasion delay and hinder' the clarification of the mash, but also tend to acidity the same, it' exposed. tothe air, as it must be. necessarily, more or less, before the brew is completed; and for this purpose,

The invention consists in subjecting the wort or mash-liquid to the action of such an agent or agent-s (such as, for instance., charcoal, previously washed or otherwise suitably treated, to prevent its ilnparting color to the wort, either in combination or not with a screen or screens,) as will remove the aforementioned impurities from the wort or mash-liquid, and produce a thorough purification or clarilication of its saccharinc qualities.

In the accompanying plate of drawings, one form of apparatus for carrying out my improvement in the process of brewing, is illustrated- Figure l being a side elevation of an apparatus for such purpose;

Figure 2, a central vertical section; and

Figures 3 and 4, transverse horizontal sections, taken in the planes of the lines .fc a' and y y, respectively, of 6g. 2.

A, in the (.lrawings, represents a vessel or tank, made of conical shape, and open at both ends, its larger end, B, uppermost, which is the end at which the wort orlinaslnliquid is to enter it, escaping at the lower or smaller end (l.

Vithin the vessel A are located threc screens, D, E, and F, each provided with eyes, G, for convenience in inserting and renioving them, with one screen above another, butinade of such a size as to leave a chamber or space, H, between, the smaller one, F, resting at the lower end ofthe vessel, and the upper one; D, below the upper end or top to the vessel, so as to forni a space or chamber, I, for the wort, enabling it to bcconie distributed over the surface of the screen, constituting the bottom of said chamber.

W-hithin the chambers H, between the screens, the clarifying or purifying-agent used is to be placed, charcoal, disintegrated or broken up into small particles, and previously washed, or otherwise suitably pre'ptned,j to prevent its imparting color to' the wort1 being themost preferable.

With -an apparatus constructed as above described, the invention embraced herein is enabled to be carried out most perfectly and successfully, the first screen or sieve serving to remove from the wort, in a greater or lesser degree, the flocky elements held in suspension, while the liquid freely passes through the screen to thecharcoal within the chamber below, by the act-ion of which thewort is more or less freed from the starch and niucilaginous compounds held by it in solution; when, passing through the next screen, and from thence through the charcoal in thc chamber below it, to and through the lower screen, it escapes from the vessel thoroughly cleansed of all impurities, and claritied.

1n lien of arranging the vessel A for aV downward passage of the wort through it, it may be located for an upward passage; and inlicu of the peculiar construction and arrangement ot' it described, it may be made in various forms, and with more or less chainbcrs of the charcoal. or clarifying-agent, and with more or less screens or sicves, or with none; but I deem it preferable to use screens in connection with the clarifying-agent, as they assist the passage of the wort through the charcoal, and the action of it thereon, as is obvious. y Y

Although I have particularly specified charcoal as the clarifying-agent employed, its properties for such a purpose being well known, I wish it to be distinctly understood that I do not intend to limit my invention to the use of charcoal, nor to the use of any particular clarifying-agent or agents, nor to the use of one alone, or to two or more in combination in the saine chamber or vessel, or in ditferent chambers or vessels, the wort passing from one to the other this invention consisting in subjecting wortor mash-liquor to the action lot' such an agent or agents as will remove therefrom those elements or particles held in solution, or

in a state of suspension, or in both, that, in the completion ofthe brewing of the wort, would tend to de teriorate it both in color and taste. It is necessary that the wort or mash-liquid should be under heat when it is subjected to the action of the charcoal or other clarifying-agent. A temperature of about 170O will be found sufficient, but I iind a temperature considerably higher to be more advantageous. The woxnt is clarified as above directed befbre fermentation..

Having thus described my invention,

What I claim, and desire to have secured to me by Letters Patent, is-

1n the process of brewing, subjecting the wort or r'nash-liquid to charcoal, or its equivalent, either alone or in combination with other materials, and either in combination or not with a screen 0r screens, substantially as and for thepurpose described.

The above specification of my invention signed by me, this 3d day of January, A, 1)., 1870. JAMES MCCORMlCK.

J Witnesses:

.JOHN W. Matras, j .TuoMAs MARSHALL..

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