Show conical failour MJ 1 As the ithe corn coin millers are crying out loudly and without cause of the ei deuce of krench filters with their trade in the home market it behaves behoves the native grin grinders denito 10 look sharply about them tor for the best besl means of leecing meeting the competition A new system of grinding has been recently cintr introduced 0 deuced which seems lively to assist maLeri alty in that object and a company is advertised in our paper of this day which puri purposes poses to adopt tho the new process in an f aiom roin the pi describing the principle ol of the new mill w which we have no agull will be read with inc interest erest by those who are aie conceited conce ined in in the trade ato to appreciate the superiority of a new principle c ale ot of gi grinding anding it is hist first necessary to andersland the detects defects of the old llor for a pair of stones 4 feet in diameter an en engine 0 ine of 0 4 horse power actual is required the lower stone is fixed the upper one weighing 14 cwt cat revolves the grinding surf surface ace working at a mean velocity of 15 feet per second when the stone makis makes revolutions per minute minme the average C number for this thi 1 s power ower a hole of ten in inches ches diameter e called ared the eye in the middle I 1 Q of f this revolving stone the wheat I 1 enters and is drawn between the stones and ground the stones atones being slightly chi selled out oat in lines called dressing to 10 produce the grinding surfaces I 1 so heavy a weight flying round at the high velocity soon crushes the wheat and reduces the contents to flour when it ought immediately to escape but cannot so large is the area of the sto stones nes so great great f is the pressure of the top stone and so logged clogged up do they become by the sticky meal having to travel so far thus from the instant that the moal meal is retained beyond the time required to n grind iti deterioration commences and power begins to be uselessly consumed in getting G it out oat of 0 5 the way which it can only do very very slowly for every particle must describe a vol volute tite with minute but gradually enlar enlarging gang i circles until it gets gete to the edge or skirt of the stone and is discharged and were the co ef focient of friction resistance resi stence to the centrifugal I 1 I 1 velocity ascertained asaei bained the actual distance the meal is subject to this grinding action conrid be determined but it must be very very great circling round a stone of 4 feet dia diameter metr the friction resistance of an adhesive substance like meal to the centrifugal action is so considerable it is thus easy to see how some coition of the bread making properties oath of the e our must be destroyed by so much unnecessary tu ration and h how ow much power must be consumed in in getting rid of a material so retarding ng as meal beyond that required merely to grind the wheat the 1 he conical null mill obviates these defects to lo as great an extent as is is practicable because it is is the nearest approach to natural mechanics and the more closely man imitates those principles which the great mechanic thought best adopted adapted for the when he made animate machines the nearer is is absolute perfection reached for we may be very sure tw that there must be excellent reasons reason s w why lly j his contrivances are best though we fill fail to di discover scover them we can see however with what id mirable economy of power tho the jaws aws of the horse are contrived to grind his corn the heavy head hearing upper jaw is fixed the awer one moves and being of little eight requires but little power to move it it is is also an all upward pressure so that no w weight eight rests upon the corn as in in the pre present stent erroneous tern tem its pressure therefore is 15 exactly proportioned to the work it has to do and no more whilst the I 1 lower ower gri grinders ride rs with their serrated edges may mav be likened to little millstones of small su surface which with a berrit semi rotary motion the carn corn to meal mea designedly or not the conical mill is is on precisely the same a rne principles throughout the upper tipper wine is is fixed the lower one revolves and ostend of being 14 cwt cat like the upper n revolving stone ston P of the present mills is is only I 1 cat cwt 2 ars thus the up pressure 45 4 M 5 as div maly ajr proportioned as the hordes bor 9 es jaw sufficient only to open not to crush the corn it is is too of f small surface like the grin ders of the horse and set at an angle n not A many degress removed from that of the horses these naturi I principles of grinding mr west rup has very ingeniously carried out instead of having one small conical surface whereby some of the meal would be re reground ground and ad the atones stones become clogged though not to the same extent as on the old principle lie he divides even this smallest surface into tax two 0 o by having two pairs of conical stones on the same shaft the lower pair about two feet three inches inalie beneath the he upper so that each surface is is only as I 1 to 3 34 of the old and to prevent any portion being reground ground re the first object to be avoid ed in in good milling there are vertical bru brushes bes fixed to the shaft between the two pair of stones extend binm ing I 1 to a radius of fourteen or fifteen indies and nea nearly aly douphin touching cr a fine meshed cylinder that sur rounds the whole mill no sooner then is is the fine flour liberated from the upper than if it is 19 sent through the cylinder by these rf revolving brushes whilst all that will not go through has not been sufficiently grousl grou nl and so pisses passes down into the second pair of stones which complete the process wheat when glouid ground until the life of the flour is is destroyed makes heavy bread which is is very unhealthy and of which from some cause we hive have quite too much in in the present method of grinding if a better method exists which is is applicable to england or france it would vi be quite as applicable appi cable to utah and we recommend the above conical observations ions to the notice noti ce of our mechanics and mil lers and if there is is a reasonable reason cible prospect of im im proving our flouring floering flou ring establishments that an ail experiment be made ED ED 1 |