Archive image from page 197 of Dairy chemistry a practical handbook. Dairy chemistry: a practical handbook for dairy chemists and others having control of dairies dairychemistrypr00rich Year: 1899 174 THE CHEMICAL CONTROL OF THE DAIRY. The Leffmann-Beam Method, and Modifications.—Leff- mann and Beam, realising that the time of whirling necessary in Babcock's method was a serious objection, experimented with a view to shortening this. They finally decided on the use of amy] alcohol as a means of assisting the fat to rise, and were thereby enabled to reduce the time of whirling. The same idea
Archive image from page 197 of Dairy chemistry a practical handbook. Dairy chemistry: a practical handbook for dairy chemists and others having control of dairies dairychemistrypr00rich Year: 1899 174 THE CHEMICAL CONTROL OF THE DAIRY. The Leffmann-Beam Method, and Modifications.—Leff- mann and Beam, realising that the time of whirling necessary in Babcock's method was a serious objection, experimented with a view to shortening this. They finally decided on the use of amy] alcohol as a means of assisting the fat to rise, and were thereby enabled to reduce the time of whirling. The same idea was also independently worked out at the Vermont Experiment .Station, but it appears that Leffmann and Beam were the pioneers in this direction. It is usually employed in conjunction with the Beimling machine. The method has been subjected to a close investigation by the author, and is of considerable accuracy. The Beimling Machine.—This consists of a cast-iron frame- work carrying a vertical spindle ; on this is a small bevelled cog- wheel, which engages a larger bevelled cog-wheel on a horizontal spindle turned by means of a handle. In the larger machines n second spindle and set of cogs is introduced (Fig. 8). Fig. 8.—Beimling's Separator. On the top of the vertical spindle two, three, or six arms extending radially are fixed. To the ends of each of these are pivoted one or usually two cups, in which the bottles are placed. When thi' handle is turned, the cogs cause the Bpindle and the arms carrying the cups to rotate. For one turn of the handle, the vertical spindle turns eleven times. Centrifugal force causes the cups to assume a horizontal position when rotating, and they return to the vertical when the machine is at rest. The bearings are all plain, which causes a considerable
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