US83815A - Improvement in chtjens - Google Patents

S. S. CASE.

Churn.

Patented Nov. 3. 1868.

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SCHUYL'ER S. CASE, OF MARION, NEW YORK.

Letters Patent No. 83,815, dated November 3, 1868.

IMPROVEMEHT IN CHURNS.

The Schedule referred to in these Letters Patent and making past of fir! To all whom it may concern Be it known that I, SoHUYLEB S. CASE, of Marion, county of Wayne, and State of New York, have invented a new and useful Improvement in (lhurns; and

and in which Figure 1 is a longitudinal vertical section of my churn, taken in the line y y, fig. 2;

Figure 2, a side view of the same;

Figure 3,.a top view of the false bottom, with the pump attached; and

Figure 4, a section through the line at x, fig. 2.

My invention belongs to that class of churns in which a piston, working in a barrel, communicating with the lower part of the churn, is employed to force air into said churn, and through the milk therein contained, for the purpose of facilitating and hastening the separation of the butter from milk.

To simplify the constructionof such churns, and thus render them more effective and satisfactory in operation, is the object of this invention; and it consists, first, in the use of a false bottom, provided with a valve, fitted in the churn, a short distance above the real bottom, said false bottom being attached to the lower end of the pump-barrel, which is so arranged as to form part of the side of the churn; and, secondly, my invention consists ina peculiar mode of securing the rod of the air-forcing piston to the dasher-shaft, whereby the parts are rendered detachable and adjustable, as will hereinafter be more fully described.

In order to convey a fullunderstanding of my invention, so as to enable others to make use of the same, I will now proceed to describe its construction and operation in detail, referring to the drawings, in which similar letters indicate corresponding parts in the several figures. V

A represents the tub or body of the churn, made, in this instance, of staves, and provided with the ordinary bottom, a.

G is a hollow stock of wood, fitted into the side of the churn, so as to form a portion of the same.

When the tub is constructed as represented, this stock 0 takes the place of a stave.

b b b representhoops, placed around the churn, to bind the staves together.

- D represents the cover of the churn.

The stock G is partly cutaway at its lower end, for the attachment of the false bottom, B, which is secured to said stock by means of nails, screws, or in any other suitable manner.

The space between the real and false bottoms a B,

respectively, constitutes an air-chamber, which commu nicates with the bore 6 of stock G,'by means of an opening, 12, made through the falsebottom,B, at the edge of the latter.

An opening, 0, is also made through the centre of the false bottom.

An annular depression, surrounding the opening, c, is made in the upper face of the false bottom, and forms a seat for a hinged valve, f, opening upward.

A groove, g, in the under side of the false bottom, connects the openings at c.

On the upper end of stock 0, a cylindrical barrel, E, of metal, is fitted, and secured in place by means of screws h h, which pass through the tongue *5, attached to said barrel, into the stock 0.

F is a plunger, fitted in barrel E, and packed so as to move air-tight therein.

K is a cavity, formed centrally in the under side of the plunger F, and communicating with the upper face of said plunger by means of air-holes o o.

in represents a valve, opening downward, hinged to the under side of plunger F, so as to cover the mouth of the cavity K.

The plunger F is provided with a. rod, 1, formed at its upper end with a right-angular extension, 21-.

An open tubular socket, p, is made at the extremity of the extension it.

Through this socket, the stem G of dasher H passes, and is held therein by the clamping-screw r, which works through the sidecf saidsocket p. a

In this instance, the dasher H is made simply of two pieces .2 s, crossed at'right angles, forming four equal arms, the stem G being fixed in the centre.

When it is desired to separate the parts of the churn, for cleansing the same, the cover D may be first loosened and then removed, together with the dasher G H and plunger F, or, if preferred, the plunger can be first detached, then the cover and dasher, either separately or together.

The stock 0, barrel E, and false bottom B, are taken out togetherby withdrawingthe same upward, as shown in red, fig. 2, the hoops I) having been first loosened.

The operation is as follows: Milk having been poured into the churn, the latter is tightly closed, by means of the cover 1), and a vertical reciprocating motion given to the dasher H and plunger'F, simultaneously, by means of the stem G. As the plunger F ascends, air fiom above rushes into the cavity K of the plunger, through the air-holes 0, and, opening the valvem, passes to the under side of the plunger. As the plunger com= mences its downward movement, the valve m is closed,

and, as the plunger continues to descend, the air contained below it being compressed, the valve f in the false bottom B opens, permitting the air to pass into and throughthe milk in the churn. I

By my invention, I am enabled to furnish, at small expense, a simple and efiective churn, by the use of which the separation of the butter fiom milk is greatly facilitated.

On account of the'simple and peculiar construction of my churn, it is not liable to becomeinoperative, and

at the same time it can be easily, quickly, and effectually cleansed, because of the facility with which the pants may be detached one from another.

Having thus described my invention, I wish here to state that I do not claim broadly forcing air into a churn by means of a plunger, connected to be operated simultaneously with and by means of the dasherstem, I am aware that this is not new; but

I do claim as new, and desire to secure bv Letters Patent- 1. The false-bottom B, constructed substantially as described, and provided with a valve, f, when used in connection with a plunger, F, also provided with avalv'e,

m, all constructed and arranged to operate SllbSt2tl1-' tially as herein set forth and shown.

2. The removable stock 0, to which the barrelE and false bottom, B, are attached, when constructed and alranged as hei'ain shown and described, so as to form part of the sides of the churn A, as set forth, for the purpose specified.

To the above specification of my improved churn, I have signed my name, this 9th day of September 1868.

Witnesses: SCHUYLER S. CASE.

ALEXR. A. O. KLAUGKE, JACOB F. HENRY.