EVENDEN'S LIGHTNING BUTTER EXTRACTOR.

Temuka Leader, Issue 2404, 27 September 1892, Page 3

EVENDEN'S LIGHTNING BUTTER EXTRACTOR.

Butter, to be well made, should have the " grain " absolutely unbroken ; it must be absolutely free from buttermilk or cream, and should be free from foul

gases. A perfect churn should do all this, and more : it should churn every particle of cream, should be easy to manage, should have a wide range of temperature, and be of simple construction. Such, it is claimed, is " Evenden's Lightning Butter Extractor," which has been seen at work on the show ground, and previously at the Chilled Butter Company's premises, in Flinders Lane. The one in use there is estimated to make four tons per day. The operation is very short, seldom over ten minutes, often under five. On a massive cast-iron bed, which forms an annular gutter to receive the buttermilk as it escapes, the cylinder or tub is held in position by a solid 9in. vertical axle, which stands up in the centre of the tub encased in a wooden cone. Across the tub lies a beam held in position by the axle. The churn revolves and these arms stand still, carrying on their extremities blades which, with one edge close to the side of the churn, divert the cream in one continuous stream as the wooden cylinder is revolved, and this diversion in a kind of spray, is the work which produces the butter, not by concussion against a solid wall in a ponderous mass, or against blades which drive it like a paddle, but against each other ; granule against granule—in a bath of buttejmilk under centrifugal pressure. Here another force steps in. The butter being the butter being the lightest, is always try to get to the centre, while the unmade portions, being heaviest, are against tho wall of the churn, under the heaviest pressure and the severest friction, The entire opei-ation can b<» aeen DV the operator who stand's lever in hand, watching the changing mass, and when the last granule is turned, when the buttermilk looks that pale blue so well known, then the machine ia stopped but such is the action of the extractor that if at this paint a bucket of cream was added, this, too, might be churned up, as overchurning is impossible, Strainers are placed in over the valves ; these are then opened and the extractor once more revolved, and the buttermilk ia driven off centrifugally. Then around the wooden wall is seen the mass of perfectly grained butter, on this a hose is played until it is thoroughly washed. Mr Even don, the inventor, claims to salt butter by brine in the same machine uuder centrifugal pressure. There is an element of certainty and comprehensiveness about the extractor which at once wins the admiration of the expert. It is independent of conditions of every kind, perfectly simple in construction, durable, and easily kept in repair, They run in all sizes, from 81b p§r charge u,n to seven tons per day.