US182001A - Improvement in churns - Google Patents

Description

W. M. K. THORNTON.

ycHURNs. No. 182,001. vPatented Sept. 5,

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UNITED STATES PATENT OFFICE WILLIAM M. K. THORNTON, OF ST. LOUIS, MISSOURI.

IMPROVEMENT IN cHuRNs.

Specication forming part of Letters Patent No. 182,001, dated September 5, 1876; application led July 26,1876.

To all whom it may concern:

Be it known that I, WILLIAM M. K. THORN- TON, of the city and county of St. Louis, and State of Missouri, have invented a new and useful Improvement in Ohurns; and I do hereby declare that the following isa full, clear,

and exact description of the same, reference being had to the accompanying drawings, making part of thisy specification, in which- Figure l is a vertical central section of the tub of my improved churn, showing the parts in workingorder. Fig. 2 is a transverse section of the dasher. Fig. 3 is a side elevation of the parts by which the dasher is operated. Fig. 4 is a modification, showing the manner of connecting thedasher with its operating parts. Fig. 5 is an elevation of a dasher of somewhat modified construction. Fig. 6 is a front view of the same. Fig. 7 is a transverse section of the same in theline x of Fig. 6. Fig. Sis an elevation of a butter gatherer, used after completing the churning operation. Fig. 9 is a transverse section of the same in the line y y.

The nature of my invention consists in the construction, combination, and arrangement of parts hereinafter described and specically claimed, whereby a very durable, cheap, and ecient churn is produced.

The object of Vmy invention is to effect the churning and gathering of butter more rapidly and perfectly, and to make the operation of handling and cleaning the parts moreconvenient.

To enable others skilled in the art to understand my invention, I will proceed to describe it.

In the accompanying drawings, A represents the tub of the churn, covered by a lid consisting of two halves, B. Diametrically t opposite each other, at or near the top of the tub A, are two sockets, a, made, by preference, of metal, and fastened to the sides of the said tub in a convenient manner. The sockets a receive the shanks c of a bail, C, which supports the dasher motion. The said bail C has a boss, c', between two curved uprights, D, which end in a boss, d, with a horizontal pivot-pin, d', through it. The boss c is provided with a bearing for a vertical shaft, E, which is prevented from falling out of its bearings by a pin, e, or other similar means, and which, below the boss c', is provided with a beveled pinion, F, and a sockct,f. The socket freceives the shaft G of the dasher, with which. it is rigidly connected by a pin, f. The pin` ion F is driven by a toothed sector, H, which is supported by the pivot-pin d', and provided y with a handle or crank, h. The plain back of the sector bears against a steady-wheel, I,

which is pivoted to a yoke-shaped bracket, z', attached to the bail C. The dasher consists of a shaft, steadied by a center pin, a', at the bottom of the tub A, with two horizontal cross arms, g, between which bottomless troughs J are pivoted by means of rods K. The said rods K pass through the arms g and the V- shaped connectingboards L ofthe trough-boards J', and thus permit the said troughs to freely revolve. The centers of revolution of the troughs J on the bearings lin the boards L for the rods -K are placed much nearer to the converging ends of the boards L than to their diverging ends, and by which the troughs are thrown out of balance. In consequence of the said construction the converging ends of the boards L always present front7 in their operation, or the closeredgesof the side boards J' are ahead, as shown by `an arrow in Fig. 7. .The boards J' are provided with one or more rows of holes, j, made obliquely in the said boards, so that their center lines will meet at the rear of the trough. This construction of the holes j facilitates .the motion of the troughs J through the cream, as the cream passes more rapidly and almost withou friction through the said holes. By sharpening up the front edges of the boards J', the friction of the dashers is still more reduced.

For gathering the butter, the troughs J are removed, and the butter-gatherers M putin their places. The said butter gatherers M consist of three-winged boards m, with scalloped front edges m1, and central holes m2 for the insertion of the rods K, around which they swing or turn freely.

The dash boards J may be provided with rods N, fastened between the boards L, to increase the number of currents created by the operation of the dash-boards, and thereby accelerate the formation of butter.

Operation The tub A islled tvvo-thirdsfof.l its capacity With cream; the lids-B are putin their places, andthe handle is moved up and down by the operator, therebycreating a number of alternate revolutions of the dasher" to the right and left. The troughs J being overbalanced, they right 'themselves immediately at each reversed stroke of the sector H.

The cream at and around the holes j is forced y through the same in a numberof' currents, Which have a very small allowance of space and time for reuniting, as they divide in the same manner in quick succession. Theopersmall lumps and c1ods,'the reby notifying the operator that the'churnin g is perfected. The operator now removes `the dasher motion by taking the bail'G from the sockets a. rIhe lids B are then removed, and the shaft Gi' taken from the tub. The troughs J' are removed, the butter-gatherers M put in their places, and the shaft G inserted into the cream again. The dasher-motion is nowput in place again, and the lids B are put uponthe tub A.' The operator sets the machinein motion, and the ybutter-gatherers, being balanced, but meetingl with less resistance near the shaft Gr than near the inside periphery of the tub 4A, revolve around their own axes in a direction opposite to that of the revolving vshaft G, according to well-known mechanical laws. The gyrations of the butter-gatherers cause the heavier parts of the cream to be dashed out of the Way, While the lighter particles of butter are crowded into the corners-near. the center of the g'atherer, to which they adhere, con gregatin g grad'- ually in `big lumps. The scalloped edges of divided particlesof butter and curd separated,

and prevent a massing and sinking down of: v butter-loaded'curd inthe milk. WhenV the` curd is freed from the butter, the operatorremovesthe shaft G,with the butter-gatherers., from the machine in the abete-described manner, and then secures the butter.

Itisevident that as there are neither inclined float-s nor guides, nor any vertical motion'of the troughs, the agitation of the cream is entirely devoid of bubbling, squirting, and surging; but it simply consists in a swift m0- tion of the cream in a horizontal direction,

y which does not prevent the rising of the lighter particles. l

The more skeleton-shaped-th'e troughs are the better they work. v

ABy placing rods N between the dash-boards I subdivide the currents created by the holes j, and enhance the eiciency of my machine,

especially when it is of-y large size. The trough and thebuttengatherers might be'altogether made: of metal, butA I prefer wood, on account of its cheapness, and because it-doe's not corrode.

4Having described my invention, what 1 claim, .and desire tosecure by Letters Patent, is-

` l.. vThe dasher J, constructed', as described,

in angular form, and pivoted to the arm got` the vertical shaft Gr, which has a number of revolutions, alternately,.in right and left directions,

substantially as and for the purpose set forth.

2. The dasher J, constructed of thefdiverg- -i'ng and converging sides J.' J', adaptedfto automatically turn upon vrods K, in combination with thesha't G,'substantially as and for the purposedescribed.

3. In a churn,the combination of the shaft G, provided with arms g, pivoted dashers JJ',-

andi segment H, substantially as and for the' purpose described'.

4.. In a churn, the combination of theshaft G, arms g, and removable rods K, whereby `the troughs J may be substituted by buttergatherers M, and vice versa, substantially as and for the purpose set forth.

Witness my hand in the matter of my application for a patent for an improved churn lthis 24.thv day ot July, 1876. 1 the butter-gatherers serve to keep the linelyv WILLIAM M. K. THORNTON.

Witnesses:

B. V. GHAsE, LoUIs-L. Hicks.

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