US121755A - Improvement in churns - Google Patents

Description

directions, as heretofore.

UNITED STATES JOHN COCHRAN, JR., OF AUBURN, MISSOURI.

IMPROVEMENT IN CHURNS.

Specification forming part of Letters Patent No. 121,755, dated December 12, 1871.

To all whom it may concern:

Be it known that I, JOHN COCHRAN, Jr., of Auburn, in the county of Lincoln and State of Missouri, have invented a certain new and useful Improved Churn; and I do hereby declare that the following is a full and true description thereof, referencebeinghadto the accompanying' drawing and to theletters of reference marked thereon.

My invention relates to improvement in that class of churns in which two dashers are so arranged on separate shafts as to he rotated in opposite directions by suitable connection with bevel-gears; and it consists in so combining clutch devices with the shafts or rods of the dashers and the operating gea-rs that said dashers may be readily set parallel to each other, so as to be revolved together, to facilitategathering of thebutter, or at right angles, or be revolved in opposite lo enable those skilled herein to make and use my said invention, I will now more fully describe the saine, referring to the accompanying- Figure 1 as a sectional elevation; to Fig. 2 as a front elevation; to Fig. 3 as atop plan 5 to Fig. 4 as a sectional top plan.

The churn-vessel can be constructed of ordinary forms, usually circular or square, having proper lids A A'. To the lid A I secure the standard-frame B, which supports the drivin g-sh aft B' having hand-crank I). To said drivin g-shaft I secure the large bevel-gear C, which gears with and communicates motion to smaller gea-r c secured to the upper end of dasher-rods D' and D', respectively. The dasher-shaft D is of hollow construction, (to allow for passage of the rod D' and has attached at its lower end the inside dashers E, which, by the horizontal piece e, is supported upon a shoulder of the dasher-rod D', as shown in Fig. 1. The dasher-rod or shaft D' passes vertically through the collar-shaft D and center of dashers, supporting at its lower end the middle dashers El, and is tted, by its pivot end d, to revolve in the lower piece e2 of the outside dashers or breakers E2. Said breaker E2 is made to t crosswise in position in the churn-vessel. In order to regulate the rotating action of the dashers E El I have provided the upper square end of the shaft D' with a coupling-sleeve, F.

Said sleeve is fitted, by its mortises f and teethf',

to engage in two or more corresponding nlortises and teeth or tenons of the respective gears r, as shown in Figs. 1 and 2. Furthermore, said sleeve F is arranged to slide loosely on the end shaft, and, by ineans of its spring-catch f2 engaging in the notches f3, as shown in Fig. l, is readily adjusted, in connection with either of the gears c, to operate the shaft and dashers, as desired.

W hen ,therefore,the operator adjusts said sleeve in coupling with the top gear c the two inside dashers will rotatein opposite directions-that is, the dasher E rotates in one direction while the other set, El, rotates in an opposite directionthus producing an agitation practically effective in breaking up the fatty globules of milk. \Vhen said sleeve F is adjusted with the lower gear said dashers maybe operated to rotate in the same direction, positioned at right angles from each other; or said dashers may be made to revolve parallel in position in order to combine and collect the butter formed.

The lids A A' are constructed detachable from the churnwessel, as follows: To the knobs Gr secured to each lid I connect the wire fastening y, of the peculiar outline and forni plainly shown in Fig. 3. When the churn is to be operated, the knobsheingturned, said wire fastenings y engage in proper staples y' secured to the churn-vessel. The lids may be thus secured to the churn; and a detachment of the parts is easily effected by disengaging the fastenings from the staples.

I do not, however, claim any novelty in this lnethod o'f constructing or arranging the lids.

Having thus fully described my said invention, what I claim, and desire to secure by Letters Patent, is-

The combination ofthe bevel-gear C and clutchgears e c, sliding toothed sleeve F, spring-catch f', dasher-rods D D', and dashers E and El, as

shown and described, whereby said dashcrs may be set parallel and revolved together or at right angles to each other, as specitied.

In testimon-y of said invention I have hereunto set my hand.

JOHN COCHRAN, JR.

Witnesses z' J oHN J. KNIGHT, JNO. L. POLLAED. (45)

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