US761121A - Churn. - Google Patents

Description

I I filr e s No. 761,121; PATENTED MAY a1, 1904.

1 I A. 0. WILLIS. Y

OHURN.

APPLICATION rmm JAN. 4. 1904.

110 MODEL.

2 SHEETSSEEET 1.

Albert G I y v mt uoams PEYERS ca, momumu. wnummow, n. z.

PATENT ED MAY 31, 1904. A. 0. WILLIS.-

GHURN. I 7 APPLICATION EILED JAN. 4, 1904.

2 SHEETS-SHEET 2.

, N0 MODEL.

Patented May 31, 1904.

PATENT OFFICE.

ALBERT O. WILLIS, OF COLUMBUS, OHIO.

CHURN.

SPECIFICATION formingpart of Letters Patent No. 761,121, dated May 31, 1904.

Application filed J annary 4, 1904.

To all whom it may concern: Y

Be it known that I, ALBERT O. WILLIS, a citi-f zen of the United States, residingatColumbus, in the county of Franklin and State of Ohio,i have invented a new and useful Churn, of which the following is a specification.

My invention relates to churns, and espe-, cially to the churn-dasher, havingfor its objects to produce a comparatively simple inexpensive device of this character which in practice will efliciently perform its functions and cause a thorough agitation of the cream, thereby rapidly converting the latter into butter.

To these ends the invention comprises the novel features of construction and combination of parts more fully hereinafter described.

In the accompanying drawings, Figure 1 is a vertical longitudinal section through a churn having my improved dasher applied thereto. Fig. 2 is a top plan view of the dasher. Fig. 3 is a detail sectional elevation of the lower portion of the same. Fig. 4 is a bottom plan View of the same.

Referring to the drawings, 1 designates the churn vessel or body seated upon a base 2, having an upstanding flange engaging the bottom of the vessel, which is provided with a discharge-opening 3 and upon its interior with radiating deflecting-wings 4. Bolted or otherwise secured to the base is asubstantially U-shaped vertical frame presenting a pair of oppositely-disposed vertical standards 5 and' a top connecting-bar 6, carrying a depending bracket or hanger 7, horizontally perforated vided, there being fixed upon the outer end of said shaft an operating-wheel 14. The bevel-gear 10 is in mesh with a bevel-pinion 15, fixed upon a vertical dasher-shaft 16, disposed at the center of the churn and having Serial 110,187,678. m mic.)

bearings for rotation at its lower end in a step 17, provided at the bottom of the vessel, and at its upper end in a suitable bearing provided at the center of the connecting-bar 6. These parts may all be of anysuitable orpreferred construction and material, inasmuch as they constitute no part of my invention.

Mounted upon the shaft l6 a nd adjustable longitudinally thereof bymeans of a set-screw 18 is the dasher 19, constituting the subject of the present invention, said dasher comprising a central shaft-receiving sleeve 20, horizontal radiating blades 21, and a jacket or casing 22. The sleeve 20, which is of tubular form, has fixed to and carries at its lower end the blades 21, which unite at their inner ends and radiate from the sleeve in a substantially horizontal plane. The blades, which from their inner toward their outer ends curve backward relative to the direction of rotation of the dasher indicated by the arrow in Fig. 2, are also curved slightly downward between their ends and have theirlower faces inclined downward from front to rear in transverse section. Thus as the blades rotate they sweep the cream from the center outward and also create a downward suction, thereby causing a downward current or flow of the cream within the casing 22. I

The casing 22, which is composed, preferably, of sheet metal bent or folded'at its upper end around a strengthening ring or band 23 and soldered or otherwise secured at its lower end to the outer ends of the blades 21, is preferably of the form herein shown, having a substantially vertical cylindrical lower portion 24 and'an upper conical or tapered portion 25, the upper and lower ends of the casing being open to permit free passage of the cream vertically therethrough. Formed through the wall of the upper conical portion of the casing is a series of inlet-openings 26, disposed, respectively, vertically above the blades 21, while a series of outlet-openings 27 are formed through the wall of the lower cylindrical portion at points respectively between the blades.

In practice operation of the wheel 14 causes, through the medium of the intermediate gearing, a forward rotation of the shaft 16 and the same into butter, attention being directed to the fact that in its passage through the inlet-openings 26 the cream is divided into distinct streams whereby a more thorough sepa' ration and breaking up of the particles is attained, with a consequent facilitation of the process of conversion of the cream and saving of time in the churningoperation.

From the foregoing it will. be seen that I produce a simple inexpensive device which is admirably adapted for the attainment of the ends in view; but it is to be understood that I do not limit myself, to the precise details herein set forth, inasmuch as minor changes may be made therein without departing from the-spirit-of the invention.

Having thus described the invention, what is claimed is- In a churn-dasher, the combination with a series of substantially horizontal radiating blades adapted to produce a downward suction, of a shell or casing around and fixed for rotation with the blades, said casing having an upper inwardly-converging portion provided with inlet-openings disposed respectively vertically above the blades and a lower substantially vertical portion having outletopenings disposed between the blades.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

ALBERT ()WILLIS. \Vitnesses: I

JACOB RA B, RALPH HENNEY.

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