US674393A - Churn. - Google Patents

Description

UNITED STATES PATENT OFFICE.

J OHN FRANKLIN BAUGH, OF BRAXTON, MISSISSIPPI.

CHURN.

SPECIFICATION forming part of Letters Patent No. 674,393, dated May 21, 1901.

Application filed March 5, 1901.

To all whom it may concern:

Be it known that LJOHN FRANKLIN BAUGH, a citizen of the United States,residing at Braxton,in the county of Simpson and State of Mississippi,have invented certain new and useful Improvements in Churns; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters of reference marked thereon.

The present invention has for its object to provide a simple and effective rotary churn in which the separation of the oily globules from the milk or cream in producing the butter is rendered more effective and satisfactory; and it consists in a churn constructed substantially as shown in the drawings and hereinafter described and claimed.

Figure 1 of the drawings is a side elevation of a ch urn constructed in accordance with my invention, showing the cylinder and dasher in section; Fig. 2, a perspective view in detail and partly in section of the dasher; Fig. 3, a horizontal section taken on line y y of Fig. 1; Fig. I, a detail bottom plan view of one of the dasher-blades.

In the accompanying drawings, A represents a suitable foundation or support provided with the two upright standards 13 O and the horizontal beam D, which connects the two standards together to form a supportingframe for the operating parts of the churn. A suitable drive-wheel E is journaled in the upright standard B or connected thereto in any suitable and well-known manner, said wheel having a suitable handle a for turning it. Extending over the peripheryof the wheel E is a belt or cord F, which also engages the two grooved pulleys G H, the pulley G being connected to a pivoted hanger K upon the Serial 110.49.816. (No model.)

the drawings; but as I do not limit myself to any special construction of driving power the same may be changed or modified without departing from the spirit of the invention, or any suitable driving power or means for imparting mot-ion to the dasher-shaft may be used as found most desirable.

, The chn rn-cylinder L, which may be of any suitable size and construction, rests upon the support A and is provided with a cover M to fit over the top of the cylinder, and through this cover extends the dasher-shaft I, the lower end of said shaft resting upon a crossbar N upon the bottom of the churn-cylinder. The cross-bar N is provided with curved or other suitable agitator-arms O, which extend up to near the top of the churn-cylinder and remain stationary, while the dasher rotates through the medium of the driving power hereinbefore described.

The dasher-shaft I is formed square or flatsided in cross-section, as shown in Fig. 3 of the drawings, and fits in a correspondinglyformed tubular boxing P, which boxing is rigidly securedto the interior of the tubular dasher-stem R. The boxing P being square or flat-sided and the tubular dasher-stem R round, when the boxing is located in the stem a space will be left between said boxing and the interior of the stem, as indicated at e of Fig. 3 of the drawings. This space provides a passage for the air to pass down into the churn-cylinder to circulate below the dasher, and thereby increase the eifectiveness of the dasher. The tubular boxing P has connected toits upper end a fiat bearing-spring S, which beats with frictional contact against the fiat side of the shaft I, as shown in Figs. 1 and 2 of the drawings. This bearing-spring S'holds the dasher T in its adjusted position on the shaft I and prevents it from working down by its own weight during a rapid rotation of the shaft, the flat sides of the shaft, in connection with the correspondingly-formed tubular boxing P, preventing the dasher from turning independently of the dasher-shaft, thereby providing a very simple and effective device to hold the dasher against moving vertically or horizontally independently of the rotatable shaft.

The dasher T is provided with a downwardly-extending circumferential rim 1), and

the fiat-sided boxing P extends some distance below the bottom of the dasher, and to the sides of the tubular and flat-sided boxing are secured the dasher-blades U. These dasherblades are of peculiar construction, being scoop-shaped in form and -L.-shaped in crosssection and having the flange c, which together cause the milk or cream to drive off with more force, the flange catching the milk or cream as the dasher rotates, and will produce a greater vacuum for the air to rush in,

. and thereby a more thorough agitating of the milk or cream.

The peculiar shape of the dasher-blades, as above described, gives increased strength thereto and prevents any danger of the blades bending or twisting from lack of rigidity and the rapid rotation of the dasher.

The construction of the dasher-blades in the form described will most effectually and thoroughly drive the air through the milk or cream and with such rapidity that churning is rendered both simple and easily accomplished.

The dasher-blades U have a flat shank d for attaching them to the sides of the tubular and flat-sided boxing P, said shanks be ing of the same width and length as the projecting end of the boxing, so that when secured thereto a double thickness will be given to the sides of the boxing and forming a brace therefor and also for the under side of the dasher. The downwardlyextending rim Z) assists in drawing the milk to the center of the dasher and prevents it from too rapidly passing out from between the dasher-blades.

Having now fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

In a churn, a suitable dasher having a tubular stem, a fiat-sided boxing located in the stem and rigidly secured thereto, to leave a space between the two to allow the air to pass down into the churrrcylinder to circulate below the dasher, a flat bearing-spring upon the upper end of the boxing, and a fiat-sided dasher-shaft against which the spring bears to hold the dasher from movingindependent of the shaft, substantially as and for the purpose set forth.

In testimony that I claim the aboveI have hereunto subscribed my name in the presence of two witnesses.

JOHN FRANKLIN BAUGH.

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