US687680A - Churn. - Google Patents

Description

m. 687,689. Patented Nov. 26, mm.

:c. FRANKLIN. V

CHUBN'.

(Application filed May 31, 1901. (No Model.)

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Patented Nov. 26, I9DI.

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UNITED States PATENT Fries.

CLAUDE FRANKLIN, OF NORTH CHICAGO, ILLINOIS, ASSIGNOR, BY M-ESNE ASSIGNMENTS, TO WILLIAM C. LOTT, OF CHICAGO, ILLINOIS.

CHURN.

SPECIFICATION forming part of Letters Patent No. 687,680, dated November 26, 1901.

Application filed May 31,1901.

To aZZ whom it may concern Be it known that I, CLAUDE FRANKLIN, a citizen of the United States, residing at North Chicago, in the county of Lake and State of Illinois, have invented a new and useful Churn, of which the following is a specification.

This invention relates to churns, and has for its object to provide an improved rotary churn which is especially designed to facilitate the operation thereof and to increase the rapidity with which butter is formed. It is furthermore designed to increase the agitation of the cream without splashing the same and also to render the rotation of the dasher smooth and easy.

\Vith these and other objects in view the present invention consists in the combination and arrangement of parts, as will be hereinafter more fully described, shown in the accompanying drawings,and particularly pointed out in the appended claim, it being understood that changes in the form, proportion, size, and. minor details may be made within the scope of the claim withoutdeparting from the spirit or sacrificing any of the advantages of the invention.

In the drawings, Figure 1 is a perspective view of a churn embodying the present invention. Fig. 2 is an underneath perspective view of the dasher. Fig. 3 is a top plan View thereof.

Like characters of reference designate corresponding parts in all of the figures of the drawings.

Referring to the drawings, 1 designates a cylindrical can that forms the body of the churn, the top of the can being normally open and there being a drain-spout 2 provided near the bottom of the can and having a closureplug 3. For the support of the can there is provided a circular base or support 4, having an upstanding marginal rim or flange 5, within which the can is seated. There is an integral extension 6, projected laterally from the base and from which rises a standard 7, that projects a suitable distance above the top of the can. Upon the intermediate portion of the standard there is mounted a drive-gear 8, which is located between the standard and the can, there being an operating crank-handle Serial No. 62,621. No model) 9 upon the outer side of the standard and connected to the journal of the wheel. The upper end of the standard is provided with a lateral arm or extension 10, that overhangs the top of the can and terminates in line with the longitudinal axis of the can. From the intermediate portion of the arm there depends a hanger 11, and a counter-shaft 12 has its opposite ends journaled in the hanger and the adjacent portion of the standard. A pinion 13 is fixed to the shaft and in mesh with the drive-gear. At the outer end of the shaft and upon the outer side of the hanger there is mounted a beveled gear 14. An arched brace 15 rises from the intermediate part of the arm 10 and overhangs the outer end of the arm. A vertical dasher-shaft 16 is rotatably mounted in alined openings formed in the outer ends of the arm 10 and the brace 15, there being an adjustable collar 17 connected to the shaft by means of a set-screw and lying upon the top of the arm to prevent downward displacement of the shaft. A beveled gear 18 is fixed to the sh aft immediately below the arm 10 and in mesh with the first-mentioned beveled gear 14:. The lower end portion of the shaft terminates above the top of the can and is provided with a lateral substantially radial projection 19, there also being another projection (not shown) upon the opposite side of the shaft. In the bottom of the can there is provided a socket or step-bearing 20 for the reception of the pointed lower end of a dasher-shaft section 21, which is detachably connected to the upper shaft-section by means of a slidable sleeve 22, mounted upon the upper end of the lower shaft-section and provided with a setscrew 23, to bind against the shaft and hold the sleeve thereto, there being a notch 2 1 formed in the upper marginal edge of the sleeve for the reception of the projection 19 upon the upper shaft-section, whereby the sleeve overlaps both sections and connects the same for simultaneous movement when the upper section is rotated.

Upon the lower portion of the dasher-shaft is mounted the dasher, which consists of a tubular stem 25, that is open at opposite ends for the reception of the dasher-shaft and pro vided adjacent to its upper end with a setscrew 26, whereby the dasher is held against rotation upon the shaft. tion of the stem radiate the dasher-blades 27, which are substantially spoon-shaped and are bowed rearwardly with respect to the direction of rotation of the dasher. lach blade starts substantially horizontal from the stem and is comparatively narrow, and as it extends outwardly itbroadens and is twisted or tilted vertically and is bulged or bellied outward to present inner and on ter agitating-surfaces, disposed tangential to the vertical axis of the dasher, the outer upper edge portion being provided with an upstanding extension or projection 28. The outer end portions of the blades are mutually braced and connected by means of a band 29, which embraces the upper ends of the projections 28, as plainly shown in Fig. 3, the band and the projections being soldered together, so as to form a strong and durable connection therebetween. It will be observed that the tip ends of the blades project slightly beyond the vertical plane of the band.

When the dasher is rotated in the direction of the arrow shown in Fig. 3, the action of the inner sides of the dasher-blades is to draw the liquid downwardly, and the action of the outer sides of the blades is to force the liquid laterally outward, whereby the liquid rises at the outer side of the dasher and then pours downwardly and inwardly over the upper edge of the brace-band 29, thereby creating a thorough agitation of the liquid without splashing the same. As the blades are connected only by the brace-band located wholly above the blades, the marginal space between the latter is unobstructed, so as to permit of the free outward discharge of the liquid.

From the lower por- Within the body of the churn there is provided a plurality of vertical breakers, one of which has been shown in Fig. 1 of the drawings, and formed by two longitudinal sections of sheet metal 30 and 31, that have the respective lateral flanges 32 and 33, connected to the side of the body, so that the breakersections lie in mutual contact and are disposed substantially radial with respect to the body of the churn. One of the secti0ns-as, for instance, the section 30-has its outer edge portion folded over, as at 34, so as to firmly embrace the corresponding outer edge of the other section, and thereby brace and stilfen the breaker.

What is claimed is A rotary churn-dasher, comprising a stem or hub, a brace-band, and a plurality of dasher-blades, each having a narrow approximately horizontal inner terminal, a narrow approximately vertical outer terminal, and a wide and substantially spoon-shaped intermediate portion, projecting below the band and outward beyond it and presenting outer bulged agitating-surfaces disposed obliquely to the path of rotation, whereby when the dasher is rotated, the cream is drawn downward through the space formed by the band and is then forced upward and over the band, thereby effecting violent agitation of the cream, substantially as described.

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

CLAUDE FRANKLIN.

Witnesses:

M. STAMPER, GEO. B. JONES.

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