US597970A - Churn - Google Patents

Description

(No Model.)

N. B. PERRELL.

OHURH No. 597,970. Patented Jan. 25, 1898.

Ina rental fill/1020211272621.

UNITED STATES PATENT OFFICE.

NEWTON E. FERRELL, OF WEST FINLEY, PENNSYLVANIA.

CHURN.

SPECIFICATION forming part of Letters Patent No. 697,970, dated January 25, 1898.

Application filed June 10,1897. Serial No.640,196. (No model.)

To all whom it may concern.-

Be it known that I, NEWTON. E. FERRELL, acitizen of the United States, residing at West Finley, in the county of Washington and State of Pennsylvania, have invented new and useful Improvements in Ohnrns, of which the following is a specification.

This invention relates ,to churns of that class in which the dasher is to have a vertical reciprocation and also an oscillatory or rotary movement, first in one direction and then in the other, thus imparting four motions to the dasher, or a right-and-left and up-and-down movement in spiral circles.

In the annexed drawings, Figure 1 is a sectional elevation of my improved churn. Fig. 2 is a partly-sectional view of the socketed and spirally-grooved dasher-shaft. Fig. 3 is a plan of a two-part collar to be loosely mounted on the dasher-shaft and provided with an arm for attachment of a pit-man to reciprocate the dasher in avertical direction. Fig. 4 is a perspective of the churn-dasher.

The churn body 1 may be of any suitable or usual form, preferably cylindrical. There is mounted on the churn-body a verticallyextended frame 2, that supports at its upper part a nut or hearing 3, the bore of which is,

spirally ribbed to engage with the spiral grooves 4 of a dasher-shaft 5, Figs. 1 and 2. This dasher-shaft 5 is shouldered or provided with a circumferential groove 6, Fig. 2, in which is mounted a loose collar 7, Fig. 3, that is preferably formed in two parts united by bolts 8 to facilitate fitting the said collar onto or around'the shaft.

From one side of the loosely-mounted collar 7 there projects a bearing 9 for attachment of the upper end of a pitman 10, the lower end of which connects with a wrist-pin 11 on a gear-wheel 12, that is mounted in the lower part of the churn-frame. A crank handle 13, connected with the gear-wheel 12, affords means for rotating said wheel to impart vertical movement to the dasher-rod 5 through the intermediate pitman. In its vertical movement the dasher-rod 5 has also imparted to it a rotary or oscillatory motion, first in one direction and then the other, through the spirally-grooved connection of the said shaft with the nut or hearing 3,

through which the shaft is passed. The loose collar 7 permits the required oscillatory or rotary movement of the dasher-shaft 5 simultaneously with its vertical reciprocation.

A out or a slip-collar 14is provided on the end of the bearing 9 to hold the end of the pitsocket 17 to receive the staff 18 of the dasher 19, and a set-screw 20 or other suitable fastening is provided for detachable connection of the said shaft and dasher-stafi.

The dasher 19, Fig. 4, comprises crossed bars 21, secured to the lower end of the staff 18 in a horizontal direction and at right allgles to each other, and also-similar crossed bars 22, secured to the stafi at about eight inches, more or less, from its lower end. These lower crossed bars 21 and upper crossed bars 22 afford attachment for diagonally arranged spindles 23 and 24, that are inclined in opposite directions, as shown, one pair of spindles, 23, being extended, for instance, from the inner or central portion of one lower cross-bar 21 to the outer ends of the correspondin g upper cross-bar 22,and the other pair of spindles, 24, being extended from the outer ends of the other lower cross-bar to the central portion of the corresponding upper crossbar. It will be seen that with the means for imparting to this dasher a vertical reciprocation or up-and-down movement and an oscillation first to the right and then to the left each inclined spindle 23 and 24 will cut a different spiral circle in the milk, so that with the four motions given to the dasher the milk is thoroughly and rapidly agitated in a great variety of directions and the butter is quickly separated. The churn is very easily operated and does its work speedily and eifectively, making it possible to churn the milk at a low temperature and preserve the natural color of the butter.

What I claim as my invention is-- In a churn, the combination of the axially-oscillatory and vertically-reciprocating dashenshaft having an annular groove intermediate the shaft ends and provided with a spiral groove throughout the upper portion of the shaft, aframe provided at the top with a, fixed nut having a spirally-ribbed bore engaging the spiral groove of said shaft to im- 5 part oscillation thereto on up-and-down movement of the shaft, a collar loosely mounted in said annular groove of the dasher-shaft, a.

- pitman connected to said loose collar, gearing for driving the pitman, and a. dasher detachably connected with said shaft, substan- 1o tially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing Witnesses.

NEWTON E. FERRELL. Witnesses:

D. G. RONEY, H. P. VVALTZ.

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