US71182A - Improvement in chubns - Google Patents

Description

M. W. KILGOFH.-A

' Churn.

Patented v Nov; 19, 1867.

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M. W. KILGORE, OF BALTIMORE, MARY-LAND. Latas Patent No. 71,182., eared November 19, 1867.

IMPROVEMENT IN enters.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, M. W. KILGORE, of the city of Baltimore, county of Baltimore, and State of' Maryland, have invented certain new and useful Improvements in Churns, which I term the Iron Monitor Ohurn; and I do hereby declare that thegfollowing is a full, clear, and exact description of the same, reference being had to the l annexed drawings, and to the letters of reference marked thereon, making part of this specification, in which- Figure ll is a longitudinal sectional view on the line y y.

Figure 2 is a transverse sectional view on the line a: x.

Figure 3 is a top view, and v Figure 4 is an end view, showing the gearing mechanism byl which the dasher is operated.

Thenature of m invention consists in constructin the entire churn of cast or wrouvlit iron alvanized.

Y a f g The great advantages resulting from the substitution of nieta-l for wood, which is now universally used, will readily oceurto any one who is practically acquainted with the construction and operation of the churns now in the market. l

Of the advantages resulting from the substitution of metal for wood, the following may be mentioned as l among the most prominent: Its great durability; the facility with which the churn can be cleaned of all impurities; the impossibility, from the very nature of the material used, for the churn to become musty, thus insuring a pure article of butter instead ofthe sour and fetid article often met with, 'which not only smells disagreeably, but also has a stale, ill flavor, and which is attributable to the fact that the churn was not pure, but mustyand impure, in which the butter had been made. i I

It is hardly necessary to enumerate the disadvantages which are unavoidably associated with the use of the wooden churn. All who are familiar, no matter how slight the experience may be, with the duties and labors of the dairy, know how diiicult it is to keep clean and pure the ordinary churn.v No matter how great 'the degree of care, they will soon become offensive, which renders them entirely valueless for further use, for butter di' 'a sweet and pleasant flavor cannot be made in a churn that is musty or mouldy, for it will of necessity' impart to the butter a strong and rancid scent and taste. And again it is almost impossible properly to clean a wooden churn, even when the same is new and but little used, for after the churn is washedf; to dry it, you are compelled to expose it to the rays of the sun, and in consequence of the natural tendency of the wood to warp when so exposed, you are obliged to remove the churn before it is thoroughly dried; and thus, at the very commencement of its use, you lay the foundation for that musty condition which will sooner or later render it worthless.

Another most important feature ofmy invention consists inthe novel and practical method of constructing the dasher, which is as follows: To a horizontal cylinder or rod I attach a number of paddles or blades. The edge of these paddles or blades is serrated. The great advantage of this is, that as the series is revolved brisk-ly through the mass of cream, it will destroy all the globules and completely separate all the particles of the cream, thus, as it were, cutting it, and not simply slapping and moving the body of cream from side to side, as is the case with the ordinary blade and fan nowgin general use. With a dasher constructed on my plan, it only requires one minute to make goed butter. The blades or paddles may be secured to the cylinder orrod in the manner shown, or in any other convenient manner. They maybe arranged either straight across the cylinder or rod, or diagonally, or in'any direction desired; and they may be either Hat, curved, or of any otherl form.

My invention also consists in inserting, through a suitable opening in the top of the churn, a pipe. This pipe extends a short distance above the top, and' is provided with funnel-shaped mouth, which admits the air, and which is conveyed by the pipe down through the cream to the lower portion of the churn, and is there introduced at the bottom ofthe entire mass, and insures a continuous supply of fresh oxygen during the entire operation, which preventsthe milk from becoming too much heated while being churned. y

To enable others skilled in the art to make and use my invention, Iwill proceed to describe its construction and operation. ,Y

A is the case or box of the churn, the ends and sides of which are straight, and constructed in the usual manner. The bottom F of the box A is of a curved or cylindrical form. The box A is firmly secured to the base-frame Af. C is a hollow horizontal cylinder. c e are a series of blades or paddles, which extend radially from the `cylinder C'. The edges of these blades or paddles c c are serrated, as clearly shown in iigs. 1 and 2.

C is a cylinder-shaft, which passes through the cylinder C, and towhieh the cylinder is firmly attached. E is a thumb-screw, which works in a female screw, I, arranged in the-side of the box A. This 'screw E has a hollow head, l1, which furnishes the bearing for one .end of the shaft C. 'lhe shaft C extends through the opposite Bide of the box A, having a suitable bearing in said side. wheel, g, is firmly bolted. To one end of the box A there is permanentlysecurecl the clamp-plate H. On the centre of this plate H there is a stud or pin, h,fon which revolves the main driving-wheel G.' The teeth of the spur-gear wheel g engage with or mesh into an internal or rein gear, which isformed on the-inner face of; the driving-wheel G.' D is the top of the box A. To the top D there are attached two short escape pipes, d d. These pipes d d afford a free exit for the air that becomes heated and impure during the operation of churning. In a suitable opening in the top D, there is secured a pipe, B. This pipe extends a short distance above the top, and down nearly to the bottom F of the churn. The pipe'B supplies the entire mass of milk with a continuous stream of fresh air, the airl entering the pipe B by means of its funnel-shaped mouth, and being discharged at a point which is nearly under the entire body of milk at the side opening b. In the top D there 4is a centre opening, cl.` Around this opening, thereiis a. projecting iiange, in which is fitted a glass, j. By means of this glass jthe operator is enabled to observe theentre process of churning. In an opening` in the lower end of the box there is secured a discharge pipe, e, by means of which the buttermilk can b drawn off as occasion requires. This pipeis closed by means ofa cork or plug,.z'. A small plate,l, isarranged immediately in front of the shaftopening in the side of the box A, in order to prevent the cream from being ejected through said opening. e

The operation is as follows: Power is applied to the handle lc, which communicates motion to the main drivingwheel G, thence to the spur-wheel g, which turns the crank-shaft C', which causes the dasher to revolve. The diameter of the driving-wheel G being so much greater than that of thespur-wheel g, enables me to acquire great speed, which, being applied tothe dasher, causes the same to revolve tvith immense rapidity. In the rapid revolution of the dasher, the serrated blades or paddles cut the globules andseparate all the particles of the cream and to the entire mass insures the n iost perfect and complete agitation'. By means of the pipe a continuous current of fresh air is supplied to the churn, which, entering near the bottom, ascends through the cream, permeatingthe entire mass.y I

i It will be observed that I have represented the serrated paddles or blades of the dasheras hat, and have only shown one method of attaching the same; but it will readily occur to any one skilled in such matters that they may be madeof different forms and attached in various Ways. I do not desire to be understood as limiting myself to any speeifc'form of blade orzpa-ddle, nor to' any specific method. of arranging or securing the same.

Having thus fully described my invention, what I claim therein as new, and desire to secure by Letters Patent, is Y V A churn, each and every feature of whichbeing niade of galvanized iron, substantially as described and for the purpose specified. i p

2. Constructing the blades or paddles of the dasher with their edges serrated, substantially as described and for the purpose set forth. Y i V 3. So arranging the pipe B entirely independent of the dasher, that a continuous current of air is fed to the cream, and introduced at a point which is near the bottom of the churn. substantially'as described and for the purpose specified.

4. Thecombination ofthe pipes B and d d', when the same are'arranged substantially as'described. In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses. M. W. KILGORE.

Witnesses:

W. H. "Masson, Gso. K. VsAzar.

To the projecting end of the shaft C a spur-gear

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