DEP0054938DA - Method and device for testing milk for contamination - Google Patents

Description

Georg ¹ Boeder "Gtessea * 9/12/1949

Method and device for airing the 11 I for impurities.

ils the KLi I check for cleanliness sis », one reads eia measured- ¹ VaIu -: _ ■ same '(ζ · Β. -500 / car)"., by ice suitable. With he from bibiÄt

(See bet. "washers" of 2.5 caJ diameter). nind'jrc. ^ run and. "- ^: '- then observes how much dirt is on the filter-

■ ·. ■ ^f <- - ■ ■

■ "ben ict. Je aacii the Yerschmutzü-ngeerad sicü'ηΐβΐ-bes.i er-ffc gsinäss so clearly distinguishable" Scbjautabildsr ** that Hch even scb. on presented, the te for the 'purpose of a 7? τ®1 B feltmg; for the hair dryer- milk naca differentiation sau'ber-.eitögrappen ·· au beiritaen; "- - ■■ '.-""■' ■ ■ ■ ·. '■.

'Such' Sweeke is Yoraußsetetxng ■ »that the erbalteacn .3 the su-verläs-Eig-ffliteinanoer. Terglicb. «N will / V ^ nn-en, ie ', the © d, 3e'se.l- ^: ben Etetß correspond to the real degree of cleanliness of the.?ii.lcfe. This-- .. "is" only possible, "© na st- ~ -ts \ iater densrelbsrs VertychsbsdiTi ^ niC§ ^ n is worked," as "bi si say. Sn nht: the case is. And awar Ttoiiuat it. here on fol-wesde request virusrea a ^ s'''

'■ 1} It sues on the unity, the Jiitsr.flache "always äes gieictae 7ο -. /. ■ · lumen ifcilcn 'meet (this requirement> is practically ira groasen

and "whole already erfrrllti) - '·.

• 2) The 'Filtersrateri-al idus-s is always the same density (so far .not

35 Eie Hilch ause always ®it the equal speed by that

■ - filters are running (also not yet fulfilled) Out of practicality

GKindent ie "to portable ßuxciilaufssiten .to erkalts-ru ^ LCAN näiö- '■ no borrowed f £ Itersaaterla be used 1, ^1'" Which eo d, ICIA; |. -Fe t _f that of Schmatz is ickgehalten quantitatively aur ^f . A 3-il. fine ^

aerteiled ^ n P-chiautaes goes steadily through daa filter hindarch, - Wj e .. detailed .Verbuch © by the inventor result faabeji ^ is a ^ r portion '4 flit-torn-n'chmutateilleben (with the same illterdieiite) un- -

Indirectly. From

.Dependent »■ ;, ... - -. ■■ ...., ■ '... ^: '

comparable results can be obtained »'we.an aian 'Use-" ■

same ffillehaengen (with the same leaf surface) "cLurch_ \ gl« iche8 filter material in the same. sides »" ei »h. so with the same Qe-- • dwindle through. Imafen * IaBt «. ■

"Eist Attsfäbx & ngsbei ^ iel a serving device is shown in the ·. SeilieKPQderi figure scöesiatiseh". . . - _; -

Ia the sjliMrisch outer-ground Bohr 1 slides «in Wfet & llzylintfer which is at least its® upper part. 5 atif one X length ".. van., About 20. cm ,, see the £ 3rl inderwand tightly" aneehlisst »© or that he, la dem lohr"'"wi-e" ei-a iölbe.ta works Cylinder tube diameter Toa 6 cm (Ouerecimitt 2ß "i3 ear) .. taraiät saaa the weight of the piston s» B * to 10 kg * 3) areh

is thus in the closed cylinder eiiipa negative pressure 5 kg per cm. which is sufficient to filter a.afih badly: de Miich through a filter of the usual density. In .aaaebieberer 'Eeit

upper-Bsde de'e 2jlisder, s 1_ eats "through © ine. Platt« 4 closed-, '· ".which ®im ireiefonBiiaä Offfauag ·! ^ owns / tHber'Sieeer' .- lies' -.-- sw ^ ck durch eise entepr © ch * nde Kreigscii © itee sas elastic material .. or ^ r the like ») sealed - the filter tube, iand over deia '·. eats' «b« nf al Iff dense £ chli®BB © ad, "but the funnel can be easily removed"? - Ot der sur iufaahs! «4er mi pr'ifesdea .Mi I. <üent _v . _r _ ■ _: ... · _ "'./.-.

K-oIb'en 2 is ia-der mayst el It © a- location * la ^ which ·, he ^ rfllit, - by.eine ^: Sperricliiik ^ 8 held, dJe ^: <te * i «<ih '' - . '"^'.'.: · · Kana .- ^...-;;; - - ■: ■ · 'actuation .des-' £ Ebel 9 g 'l & t be.. ■.": ..-

-parallel sur'2jliader & Qhse 1st-eioe-screw aöptinde'l 13, angÄQränet, -we'i * -. ■ • before a gear 11 with the fiotor. 12 ..in._Terbisdiii2tg st -'- ht-uad '"voSs! ./-'. · ia constant © Osidrehungsgescliwindifekeit (e.g. 55® Ömdrehoiigan · .Sinut @) 'Teraf # ts1fc «1 ζ4 · Diaper * ße drief« «Vuad Motor .einfl in dea- -;.

.13 isontiert »which." Also the. Bohr- .1 carries, -and - gäo; i8®ii 'device., «Inea fixed & sbA gives.-''"' ■ /_._.:- '·' . ^ V-

that

ü «tgBieat 14 _f 'that by means of the lebeis 15 from-' the -Schraabanspindel · ab.- '-' ■ be" .kaaa. Mr lever 15 is pivot point 16 at the "Es Solben 2 ^: l>eitestigty"&: right spring r presses it downwards or »"'the dreVinäe segment'1 ^ screw spindle .®! -10 »fn der_drawn. $ tellax & - lies J

on the d «r. Spiz ^ e-l'an'j'-üad '-sswar "obernäib ^ dee

If, on the other hand, the pawl 8 is released so that the piston 2 sinks downward by virtue of its weight, the segment 14 is removed from the Sehraubengangea erfa & stv Per piston can sieve, only moving downwards with the speed as it goes through, the further x icteen of the segment lings the rotating spindle is prescribed »

With more adequate constant speed is gedeesen info ¹ aach the milk present in the hopper 7 through the filter 6 into the cylinder 1 naehgesaugt.

3The length of the very awning © of the locker ©! 10 is now dimensioned such that ea & Gewindssegment 14 again out of its scope _s reaches when the piston 2 has taken its lowest position * which can be fixed by a rash. In this position two kilometers of a tree of cylinder 1 - for example, 625 cm - has been cleared, which makes up the filtering silehqaaotuaa (& .B. 500 cm), and in this position the piston has the side opening free given * through which, with the help of the attached Iblsuf tube 19, the milk, which is now in the cylinder, flows out of this "

If the height of the screw spindle is, for example, the length of the screw part 200 and the height of the segment 14 is 10 mm, the piston moves from the highest to the lowest position at the assumed turning speed of the diaper of 530! of the minute in 25 hectares. tJm 5OtO. To free up cm of the cylinder space »b & w« to suck up 50 cm of milk »must $ & r piston

500? 28.5 "17"? cover approx. Mese movement happens in 20 seconds * ; the lilch therefore runs at a (constant) speed of ^ per sea. through the filter *

The further passage of the piston is necessary to control the milk flow from the cylinder.

If the milk has run out, which happens in a few moments, the weekmässi £ me is represented by a? Ujjhebcl 20, the piston The foot lever 20 acts, as can be seen, on the lever 15 through this first of all Thread segment 14 is lifted from the screw spindle 10. Only then is d & r lio ^ ben 2 lifted up, the segment 14 being unhindered on the rotating screw spindle 10 glides over et. When the piston 2 has reached its high position, the pawl engages Again a foot lever 20 falls back and the segment i4 is then placed on the screw spindle again (above the start of the screw threads) 10 at.

While the suction device is brought into the starting position by means of the ITuiihebj ^ s, the hands are standing to change the filter, so that the gate direction is ready for testing the next sample.

The entire process - from pouring the milk sample to making it ready for the next sample - does not take more than 1/2 at most One minute to complete, with the actual filtration process taking 20 seconds.

Of course, instead of letting it sink under its own weight, the piston could also be set in a uniform motion in another way. Speed develops, which is necessary to allow the Solben to cover a corresponding path in the allotted time. Such an arrangement would be due to. the difficulty of cruise control become much more complicated and expensive. Since, in the present case, the screw spindle has practically no force to transmit, but merely prevents too rapid a lowering of the KO ^ bens, it can be driven by a rope, weak motor that can easily be kept constant at its speed . Replacing the filter and introducing the samples, an operator is required anyway, which can then also take over the return of the piston without difficulty.

Furthermore, with the help of a transmission device (e.g. a cable pull) the movement device can also be placed in another place instead of being arranged vertically, horizontally or the like Circumstances may be of advantage, but nothing changes the principle of the arrangement, according to the invention, the milk is conveyed through the filter with the help of the gate direction at a constant flow rate.

Claims (7)

Pat. Claims 1) Procedure sur examination of the SSi i. exit Yerunrei nt gun ^ cureh filtration, characterized! that the egg to be tested is allowed to pass through with constant flow through ice, of constant quality and permeability. 2) Device for carrying out the method according to Insprach 1, characterized in that the milk is sucked through the filter by means of a suction pump _s which © the t'iv the test provided ", Haantum (ss.B, 500 cm ^) in one specific time ζζ e.g. 20 sec5 promotes. 3) ¥ orriehtxiQg according to Insprueh 2. » gekenaseiehnet by the fact that the cylinder of the Saugptiatp © is vertically aüpreordoet and therefore the "Rolhea, which has an estimated weight, due to its own gravity enters into activity, 4)? © rricurement _s according to claim 2 and 3 * d & ciurola known that the piston is not enough to release an opening through which the milk in the cylinder "flies out of this". 5) ¥ orrichtun.g according to claim 2 Ms 4 »thereby fjelceimaeichBet that the movement of the piston is blocked by a lever device» 6) Gate direction awr Check the milk ex * f Vei-contamination after Anspi-uch 2 Ms 5s characterized in that the speed of the Io11d © ss is controlled by screw planes 1 rotating at constant speed? longitudinally an organ that is connected to the piston is pushed forward. 7) Device according to claim 2 to 6 "characterized in that the requirement for the oil to be put into its position with the help of a ls done.