H R E W I N G. 



467 



ig. is fitted, which can he turned round by the handle a, 

 and which has a hole on one side of it ; and when 

 this is turned opposite to any of the pipes B, C, or 

 D, a passage is opened for the fluid conveyed into the 

 interior cavity of the plug from the pipe F. A cock 

 of this kind answers the purpose of three or four in 

 distributing the liquor which flows through F, in 

 t three or four directions. Fig. 1 '-3 represents another 

 'IX. excellent stop cock by Mr Bramah. The pipe A, 

 ** which conveys the liquor, (from the copper for in- 

 stance,) has the conical chamber B, containing the 

 plug D screwed to it. From the side of this chamber 

 the pipe C proceeds, and is opened when the hole in 

 the side of the plug Disopposite to the end of thcpipc. 

 The advantage of this construction is, that the pres- 

 sure of the fluid always tends to force the plug into 

 its seat, so that no screw or rivet is necessary to hold 

 it in ; or, if these arc applied by way of precaution, 

 they need not be made tight. The cock, Figs. 10 

 and 11, is kept tight by the same means, as the fluid 

 enters the base of the cone, and tends to press the 

 plug into its chamber. 



valve. Fig.G.PlateLXXVIII.isasimpleandeffectualsub- 

 r stitute for a cock in many situations of a brewery, par- 

 XVIII. ticularly at the bottom of the coolers, or any other 

 back, for instance, the back 5, Plate LXXVI. from 

 which the contents are admitted into the pan over the 

 copper. A, is a brass valve seat, which has a conical 

 valve a, exactly fitting the seat, and closing its aper- 

 ture when shut. The seat is fixed down in the 

 wooden bottom of the back, by small screws ; and 

 from the seat rises two iron bars, <l, d uniting at top, 

 and supporting a screw, which is turned round by a 

 handle c. The shank b, of the valve a, feas an open- 

 ing through it, and above this the screw is tapped 

 into it. This opening receives a cross bar of the 

 frame d, which, at the same time that it sustains the 

 lower pivot of the screw, prevents the valve shank A, 

 from turning round with the screw, which will raise 

 or lower the valve at pleasure. 



Fig. 13, of Plate LXXIX. is a contrivance of 

 Mr Bramah's, which at times may be found of great 

 advar,t;> o -e in a brewery. It is a cock to be put in the 

 great store vat for tasting the beer at various 

 periods. An ordinary cock is driven into the cask, 

 in the common way ; but it sometimes happens that 

 one of the hoops breaks, from the contraction of the 

 iron in cold weather, or other causes, and falling 

 down the vat, it strikes out the cock, so that the beer 

 may run out for many hours before the accident is 

 discovered. This cock t:>o i;i always open to the 

 workmen. Mr Bramah's tasting cock, is a brass tube, 

 A, with a shoulder </, which is the only projection on 

 the outside of the vat, and ij held in by a nut b, screw- 

 ed upon it on the inside of the stave B of the vat. In 

 the end of the tube is a plug c, ground and fitted in, 

 and having a hole in one side. The key D of the 

 cock, which is bored through the shank, and also 

 through one of the ends of the cross handle, being 

 introduced into the cock, fits upon a square, a tri- 

 angle, a circle, or any other figure, at the end of the 

 ylug ; and when the key is turned round, so that the 

 handle is upright, the cock is open, and the beer will 

 flow through the handle as a spout. This cock can- 



nah's 

 Kg 



TE 



CIX 

 13. 



not be opened without its key, which it always in Brewing- 

 the possession of the mister br< 



Fig. 7, of Plate LXXVIII. is a small apparatus 

 which, at Mr Goodwym.e's brewery, is used for the 



purpose of supplying hot water, to wash the casks or 

 buts in which the beer is sent away from the brew- 

 house. The water is drawn by a cock, from a copper 

 on purpose, and by a short canvass pipe is conducted 

 into the bung hole of the cask. The washing is per- 

 formed by a man shaking the cask, and then pouring 

 out the water. As the attendant cannot see the quan- 

 tity of water which has run in before he shuts the 

 cock, he constantly draws too much or too little, and 

 thus wastes either the hot water, or his time. 



The copper globe A, is made to contain the proper 

 quantity of water which is brought from the boiler, 

 by the pipe B, and can be admitted at pleasure, by 

 the cock D. The water is conducted into the cask 

 by a pipe E, which has a cock F so connected to 

 the former cock by the rod a, that when the one is 

 open the other is shut : a small air pipe b, goes 

 from the globe, and rises to the same height as the 

 water stands in the boiler, and is open at top. When 

 D is open and F shut, the water from the boiler fills 

 the globe, the air escaping by the pipe /;. When the 

 canvass tube E, is put into the bung hole of the cask, 

 by turning the handle e, the cock F is opened, and 

 the contents of the globe run into the cask, but no 

 more ; for D was shut at the same time. By this 

 means a certain quantity of any fluid may be measur- 

 ed out. The object here proposed is so trivial, that 

 we should not have noticed it, but the apparatus 

 seems applicable to many other useful purposes in 

 the arts, where a certain quantity of any article is re- 

 quired to be drawn off at a time. We have seen a 

 similar contrivance, for measuring the corn for feed- 

 ing horses : a square wooden tube was used instead 

 of the globe, and small shuttles in place of the 

 cocks. 



Fig. 8, of Plate LXXVIII. is a section of Mr Bra ' 

 mah's vent peg, to be put into the head of a cask when 

 the liquor is drawn off, in order to admit the proper 

 quantity of air, to allow the liquor to run oif. AA 

 is a section of the head of the cask, in which a taper 

 screw B is placed for fastening the apparatus. The 

 upper end of the screw is of large dimensions, and 

 turned out into a cup of a cylindrical form, with a 

 stud or pin rising up in the middle. A hole is dril- 

 led through the centre of the peg, to communicate 

 with the interior of the cask at b. The cavity 

 surrounding the stud being filled with water, the 

 cap, or thimble C, must be inverted, and dropped 

 into the rabbet, which is turned in the top of the 

 peg. Some small holes are drilled round in the cap 

 at 1 and 2, to admit the air freely ; and as the 

 lower edge of the cup is immersed in the water round 

 the stud, nearly to the bottom of the cup, the ingress 

 or egress of the air will be prevented, except when 

 the pressure of the air is augmented, by drawing the 

 liquor out of the cask. This ingenious contrivance, 

 will be found very useful in drawing the liquor from 

 the cask, to prevent it becoming flat or vapid from 

 a greater exposure to the air than is necessary. 



Having thus given a brief description of the prin- 



Apparatut 

 for waih- 

 ing ca<ik. 



PtATt 



Lxxvur. 



Fig. 7. 



Mr Bra- 

 mah's vent 



peg- 

 PLATE 



LXXVIII. 

 Fig. 8. 



