US1851113A - Process and apparatus for increasing the efficiency of mash tubs for massecuite and the like - Google Patents

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March 29, 19,32. A. ROLz 1,851,113

PARATUS FOR INCREASING THE EFFICIENCY PROCESS AND AP 'OF MASH TUBS FOR MASSECUITE AND THE LIKE Filed Sept. 12. 1928 \/75 N N ENTU l, YA2055 H522 a Patented Mar. 29, 1932 UNITED STATES PATENT OFFICE} ALOIS RfiLZ, 0F AARBERG, SWITZERLAND rnocnss AND APPARATUS FOR INCREASING min EFFICIENCYOF MASH MAssEcUrrE nn mine LIKE rims FOB Application filed September 12, 1928, Serial No. 305,600, and in Germany September 13, 1927.

The efficiency of mash tubs for massecuite' and the like is in known manner increased if a liquid is mixed with the charge. This liq uid was previously simply applied to the sur-;

face of the contents in greater or less quantitles and at certaln intervals of time.

method, however, does not efi'ect a rapid and intimate mixture of the liquid with the charge, so that these known processes have considerable drawbacks.

The object of the invention is to obviate these drawbacks by which the liquid is led to the mash tubs under" pressure in fine jets. The liquld 1s, prefer-' Fig. 1 is a longitudinal section through mash tub according to the invention.

Fig. 2 is a front view of a modified con struction of the mash tub.

Fig. 3 is a longitudinal section through a further modified construction of the mash tub.

A stirring shaft 3 provided with arms 1' disposed in the tub 2 is set'in rotation in known manner by a worm and worm wheel 4. According tothe invention, a tube 5 is placed in the mash tub or receptacle 2 and is provided over its whole length with perforations for the passage of the liquid. A valve" 6 is arranged outside the tub in a tube 7 lead ing from a vessel containing liquid under. pressure and forming a prolongation of the tube 5. The valve can'as shown in Figs. 1' and 2 be provided with a hand wheel in or-" der to manually control the supply of the liquid. The valve 6 is, however, preferably controlled mechanically .so that the liquid is led intermittently to the tub 2 as shown in Fig. 2 as valve 6.

For this purpose a cam disc- 8 is secured externally to the mash tub 2 on the arm of the stirring shaft 3, while at the front wall of the This" the arrangement in" 'ent places in the" tube.

' I projecting out of the tub 2 carries a small mash tub 2 or at any other suitable fixed point a lever 10 is pivoted about a pin 9 the lever rests on the cam and is connected by'a rod 11 with the slide or valve 6. In this arrangement asthe shaft 3 and with it the cam rotates, the valve 6 is opened and closed by the lever 10 and the rod 11 at each rotation of the shaft. Several cams can bearranged on the "disc, so that the liquid can be delivered several times during one revolution of the shaft3. i

The'cam'of the disc 8 may be adj ustable in .order to vary the stroke of the valve and in this way to control the quantity of liquid supplied-at'any'time. a a

Obviously, instead of the single tube'5, several such tubes can be appliedat difl'er- Also, as shown in broken lines in F igs. l and 2, the tube 5 can be provided withbranch tubes 12 disposed between the arms 1 of the stirrer in order to obtain a better distribution of the liquid. The syrup, water or other suitable liquid is preferably supplied under a pressure such.

that the liquid penetrates as'deeply as possible into the charge. 7 i

As shown in Fig. 3 a beating shaft 13 is rotatably mounted above the tube 5 and carries short a'rmsll. One end of the shaft 13 gear wheel 15 which engages with larger gear wheels 16 secured to the driven shaft 3. The tubes 12 branched from the tube 5 are arranged in this case parallel to the end walls of the tub 2, so that they are not in the way of the arms 14.

By usingthe device shown in Fig.3, the shaft 13, owing to the high gear ratio of the wheels 16 and 15, is driven by the worm, gear 1 at considerably higher speed than the shaft 3," so that the liquid jets streaming from the perforations of the tube 5 are met and broken "up by the arms 14, that is the liquid is thor- 'oughly' mixed "with the charge in the tub 2. Instead of driving the shaft 13 in the man'- the drive is essentially simplified, since this i ner shown, other suitable drivingfmeans can shaft has a high velocity and reduction gear is unnecessary.

Having thus described the nature of my said invention and the best means I know of carrying the same into practical effect, I

claim 1;- A sugar vmashing apparatus cornprisin a receptacle for the mash, a perforated tube arranged in the receptacle, a pipe supplying a liquid under pressure-connectedvto said tube, a beating shaft arranged above said perforated: tube, short arms on-said beating shaft for breaking up the liquidissu-ing from said tube, and means for controlling the -sup-. ply of'said liquid.

. 2. A. sugar mashing apparatuscomprising a receptacle. for .the mash, aperforatedztube aarrangedin the receptacle, a pipe supplying aliquid under pressure connected to said 'Qtube, a .beating.shaft arran-ged. above. said perforated tube,:shor.t arms onsaid beating shaft for breaking upth'e liquid issuing from Said tube, and a valve for controlling thesupfply .of liquid under .pressure-..arranged on 25 l theoutside of the receptacle.

3. A sugar mashing apparatus comprising a receptacle for themash, a perforated tube .-.arranged in the receptacle, a pipe supplying al'liqu'id, under, pressureconnected to ,said 30 tube, a stirring shaft, abeatingshaft arranged. above said perforated tube, short arms .on said=beating shaft forzbreakingtupthe liquid issuing from said tube,.1neans for controlling the supply, of said liquid, and toothed gears arrangedon' theoutsideof the receptacle .for driving both. shafts, thebeatingshaftbeing. .driven at a -higher 1 speed than the. stir- .ningi. shaft. .'..4=;.A.s.ugar. mashing. apparatus compris- 9. inga receptacle forlthenmash, a; perforated tube arranged in" the receptacle, a pipe sup- ;plying a liquid. under'pressure.connected to .saidiube, aQstirringsha-ft, a beatingishaft arranged labove.salidperforated tube, .short 5, armson said beating shaft forbreakingup "f the. liquidissuing from said tube,:ai1d means for. .cont-rollingfthesupply of said. liquid Worm gearing arrangedon-the outside of the receptacle for driving both shafts,v the beating shaft beingdriven at a higher speed than the stirring shaft.

5. A-.sugar mashing ,apparatus comprising a receptacle for' the mash, a.'stirring shaft in the receptacle, a perforated tube arranged ,in? the receptacle, a pipesup'plying a liquid under pressure connected to said tube, a valve for controlling the supply of. said tube, and a rotatable cam on thestirring shaftfor intermittently and automatically opening and {59 closing saidvalve.

' In testimony. whereof lhaveQaffixTed. my

signature. n

i ALOIS'FROLZ.

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