US339243A - Churn - Google Patents

Description

(N0 Modell) R. A. WOOLDBIDGE.

GHURN.

Patented Apr. 6, 1886.

//v VE/VTOR R A WOOLDRID e5.

WITH/ E8858;

ATTORNEY UNiTnn STATES PATENT OFFICE.

ROBERT A. WOOLDBIDGE, OF EAST LYNNE, MISSOURI.

CHURN.

SPECIFICATION forming part of Letters Patent No. 339,243, dated April 6, 1886.

Serial No. 181L150. (No model.)

To (all whom it may concern:

Be it known that I, ROBERT A. Woon BRIDGE, a natural born citizen of the United States, residing at East Lynne, in the county of Cass and State of Missouri, have invented certain new and useful Improvements in a Churn, of which the following is a specifica' tion, reference being bad therein to the accompanying drawings.

My invention relates to churns; and it consists in certain improvements therein, to he hereinafter fully described.

The object of my said invention is to provide a pair of reciprocating churn-dashers, which shall be operated in a cylindrical wooden or metallic churn, said dashers together forming a cylindrical disk which is equal to the inner periphery of the churn, and each moving independently of the other, being attached to dasher-statl's provided with knuoklejoints near their centers and hung from an eccentric shaft, which is mounted in U-shapcd supports secured to the top or head of the churn and rotated by a crank so geared that at each revo lution of the same three Strokes ofthe dashers are given.

In the drawings, Figure l is a vertical section of my device, and Fig. 2 is a cross-section ofthe same, showing the manner of connecting the tops of the dasher-staifs to the shaft,

A represents a cylindrical churn, the sides and bottom being integral, and having the head B removably fitted therein. This head is provided with openings 0 b, to permit the passage of the dasher'stali's (l, which are hung to the eccentricshaft D, said shaft being j ournaled and revolving in the U shaped uprights or supports H, which are attached to or cast with the head B. One end of this eccentricshaft carries a gear-wheel, E, which receives its motion from another and larger gearwheel, F, mounted on a spindle or projecting stud in a cross-bar ofone of the supports H, and said wheel F is revolved by the crank I By making the wheel I one-half larger than the wheel E it follows that one revolution of wheel F carries wheel E and the eccentricshaft once and a half around, causing three strokes of the dasher-staiifs O alternately, these stafis having knuckle-joints 0 near their centers.

Thus the strokes of the dashers are multiplied and the process of butter-making is facilitated.

The two sections of the dasher-staff O are designated, respectively, by the letters 0 for the upper and 0* for the lower, and they are k connected by metallic side pieces, 6, having openings 0 therein, to receive pivot-pins ff, passi ng through the ends ofthe sections candc' The lower end of each side piece 6 has two or more openings, (1, to allow the distance between the ends of the sections to be changed, thus enabling the dasher-stali's to be lengthened or shortened at will to change the depth of the stroke.

The head or top B of the churn fits into the cylinder, and is provided with a projecting flange to retain it in its place, and it can be readily removed to fill or empty the cylinder or to clean the dashers and daslrerstaifs.

The dasher-staii's are preferably made cylindrical, but may be made square, and the lower sections are made hollow to allow air to pass freely into the churn.

The dashers 0 being semi-cylindrical and together of the exact size of the inner periphery of the churn-cylinder, and having a great many perforations through their faces, the cream will be comminuted and forced through the perforations in the dashers and thoroughly beaten and mixed at each revolution of the crank, and all the butter will be speedily extracted. The openings 1) in the top are lined with a boxing of brass or Babbitt. metal in order to fit closely to the lower section, a, of the dasher-staft' C, so that no cream can escape even should the churn be full or nearly so, while the air entering by the longitudinal openings or hollowsin the lower sections will greatly facilitate the formation of the butter,

and the openings will permit the escape of odors from the churn while being operated.

The operation is as follows: Lift the cover or top from the cylinder by means of the supports H. This will carry with it all the mechanism. Then introduce the cream, replace the cover, and revolve the eccentric-shaft by means of the handle or winch, and a change from cream to butter will quickly take place. I am aware that churns opening at the top are not new; nor are reciprocating or divided dashers,'nor an eccentric-shaft. Therefore, I provided with a series of openings, 6, and the claim none of these, broadly; but pivot-pins ff, and the mechanism whereby What I do claim as my invention,and desire motion is imparted to the said shafts, all to secure by Letters Patent, is substantially as herein shown and described. 5 In areciprocating dasher-churn, the combi- In testimony whereof I affix my signature in :5

nation of the cylinder A with the removable presence of two witnesses.

head B, provided with openings 1) for the pas- ROBERT A. VVOOLDRIDGE, sage of the closely-fitting dasher-stafis,the hol- Witnesses: low dasher-staffs O, jointed, as described, and O. H. MORROW,

IO connected by the metallic slides e, which are l I. P. WHEELER.

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