A London encyclopaedia, or universal dictionary of science, art, literature and practical mechanics : comprising a popular view of the present state of knowledge : illustrated by numerous engravings, a general atlas, and appropriate diagrams . el,of a conical shape ; resting on its base, andhaving closely fitted into its upper part a cover ofwood, with a hole in its centre to admit the handleof the churn-staff. This staff consists of a longupright pole, to the bottom of which is fixed abroad kind of foot, perforated at different parts,and calculated to occasion a more universal agi-tation of t
A London encyclopaedia, or universal dictionary of science, art, literature and practical mechanics : comprising a popular view of the present state of knowledge : illustrated by numerous engravings, a general atlas, and appropriate diagrams . el,of a conical shape ; resting on its base, andhaving closely fitted into its upper part a cover ofwood, with a hole in its centre to admit the handleof the churn-staff. This staff consists of a longupright pole, to the bottom of which is fixed abroad kind of foot, perforated at different parts,and calculated to occasion a more universal agi-tation of the milk in churning. Many attemptshave been made to improve this useful implement;but none have been accepted in our dairies, ex-cept the barrel churn, a kind of rolling barrel,with such dashers within as are calculated toquicken the process of making butter. Mr. Harland has, in his improved barrel churn, in agreat measure obviated the awkward rotatorymotion of the barrel churn; which is suppliedby a very easy muscular exertion, resembling inits nature that of a common pump-handle; andby affixing a fly-wheel, A, the agitation is per-formed in a more equable manner, and on thataccount the butter is more perfectly separatedfrom the B is the barrei containing the whey, and fur-nished with dashers; C the shutter by which thewhey is put in and the butter taken out; D thehandle which lifts up and down the little cog E,and thus communicates to the fly-wheel and barrela rotary motion. In the process of churning, says Mr. Loudon, great nicety is required; a regular stroke inplunge or pump churns, and a regular motion inthose of the barrel or turning kind, must, if pos-sible, never be deviated from. A few hasty ir-regular strokes or turns has been known to spoilwhat would otherwise have been excellent , in his Essays on the Dairy, recom-mends the selection of a churner of a coolphlegmatic temper, of a sedate disposition andcharacter; and advises never to allow any in
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Keywords: ., bookcentury1800, bookdecade, booksubjectaeronautics, bookyear1829
