US2603A - Chtrrbt - Google Patents

Description

R. GOODWIN.

` GHURN.

PATENTED MAY@ 1842.

sTaTs T CHURN.

Specification of Letters Patent No. 2,603, dated May 4,' 1842.

clear, and exact description ofthe construci tion and operation of the same, reference being had to the annexed drawings, making l a part. of this specification, in which- Figure 1 is a perspective view of the whole churn, and F ig. 2 of the floats and interior machinery.

der of any convenient diameter and height with a substantial bottom, which cylinder is marked a on Fig. 1 of the said drawing,

and the bottom g, onFig. 2. On the center of the bottom I elevate a box or socket` marked r on Fig. 2, for the bottom of a shaft to turn in. Near the top on opposite sides of the cylinder I fasten two loops marked c, c, in Fig. 1, with thumb screws passing through the same in the center. In the loops I insert the bottoms of two posts (e, e, Fig. 1,) of an upright frame and secure the same by the thumb screws, so that the frame can be raised or lowered or taken 0E at pleasure; the tops of the two posts I connect by a cross beam (g, Fig. 1,) and again by a bottom cross beam (g, Fig. 1,) the latter being at such a distance from the bottoms of the posts as shall leave roo-m for a coupling joint (i, Fig. 1,) in the shafts above the top of the cylinder when the frame is attached to it. At a distance from one of the posts of about one sixth of the. length of the cross beams, or at any other convenient distance, I insert an upright inner post (f, Fig. 1,) between the cross beams and parallel to the other posts, and half way between the top and bottom cross beams perforate said inner post and the outer post nearest to it horizontally to lit them for the reception and support of a shaft. I then insertV therein a shaft (s, Fig. 1,) proportioned in size to the driving wheel below mentioned and sufcient to support it, the ends of which shaft stick through the inner post and outer post in which it is inserted. To the outer end of this shaft I attach a crank (Z, Fig. 1,) and on the inner end I fasten a perpendicular n'iitered driving wheel (la, Fig. 1,) of such size as I choose. I then insert a perpendicular shaft through the middle of the cross beams, (see L, Fig. 1,) and fix' upon it a little above the bottom cross beam a horizontal mitered wheel (j, Fig. 1,) seras to unite with and be propelled by the driving wheel, and of about half the size of the latter, though the size and proportions of said wheel may be varied at pleasure. I then insert the lower end of another perpendicular shaft (7L, Fig. 2,) in the box or socket on the bottom of such length as to reach a little above the top of the cylinder and of the same size as the other perigiendicular shaft.

On the upper end of the lower peri pendicular shaft I make a square tenon, In the first place I make a tub or cylinand in the bottom of the upper one a socket to correspond, so that when the ends of the outer posts are inserted in the loops o-n the cylinderand the top frame pressed down the upright shafts are united by a coupling joint (i, Fig. 1,) so that when a rotary m0- tion is given to the upper shaft by turning the crank it is commnuicated through the upper to the lower. A little below the top of the cylinder I fasten on the lower upright shaft a horizontal arm (zt, Fig. 2,) one end of which extends from the shaft so near to the inner side of the cylinder as to leave barely room for it to pass around freely without obstruction, and the opposite end of the arm I make a little shorter. To the long end of the arm I attach firmly a perpendicular float (a, Fig. 2,) its outer edge being parallel to the sides of the churn and reaching nearly to the bottom being in width about one third of the length from the shaft to the end of the arm to which it is attached, and placed in such position that the side of the float would form an angle of about forty five degrees with a line drawn from its inner edge to the center of the lower shaft. To the under side of the arm and to the side of said lower shaft next the aforesaid float I attach firmly by the upper end and one edge another perpendicular float (o, Fig. 2,) Teaching nearly to the bottom, cut out at the lower end so as not to interfere with the socket in which the lower shaft is inserted, concave on the side next the shaft and convex on the other, so as to describe the quadrant of a circle a little over half as wide as the other float, and in such position that a line drawn from the center of the shaft to which it is fixed to its outer edge, and thence to the Cit inner or posterior edge of the first mentioned float, will describe an angle of about forty five degrees. To the shortend of the arm I fix perpendicularly a float (j), Fig. 2,) also reaching nearly to the bottom. The side of which that is to follow the others is shaped into an obtuse angle of Y about forty five degrees, and the other side Asunk or furrowed to correspond, its width vthey come together', through which comes the lower shaft (7L, Fig. 1,) and considerably larger than the shaft so as to admit a free passage of air around it to and from the inside of the churn. The whole may be a made of wood, o-r partly of wood and partly of ironl or other metal. The top frame should correspond in size with the cylinder and the driving wheel to be placed in it.

The cylinderl top frame and interior machinery can be separated in a moment for the purpose of cleaning and as readily united.

The machine is put in motion by the' crank Y (Z, Fig. 1,) and when in operation the said floats revolve around the lower shaft inside the cylinder.

What I claim as my invention and a useful improvement in said machine is- The shape,position, arrangement and relative situation of said floats as attached to said arm as aforesaid, and as proposed to be used in connection with the rest of` said machine, by which when it is in operation, a gyratory motion of the fluid to be acted on inside the churn is prevented, it being thrown inwardly toward the said lower shaft, by the rst mentioned oat, and by the second back toward the sides of the churn, and the volume passed between those two constantly divided in the middle and thrown each way by the obtuse angle of the float thirdly above mentioned, and every part of the fluid rapidly stirred and exposed to the action of the air admitted through the aperture in the lids around the lower shaft and the process of making butter from cream facilitated and shortened, while no-ne of it is thrown out at the top by the revolving of said floats.

RODERICK GOODWIN

Images