US751520A - Churn - Google Patents

Description

No. 751.520. PATENTBD FEB. 9, 1904.

W. P. KIRKPATRIGK.

GHURN.

APPLIOATIONFILED Nov. s, 1902. nmnzwnn JULY a1, 1903. No MODEL. 2 sums-sum 1.

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' W. P. KIRKPATRIGK.

CHURN. APPLICATION HLLD Nov. s. 1902. BLNBWLD JULY a1, 1903.

2 SHEETS-SHEET 2.

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@mi t Musea the dashers.

No.751,52o.

UNITED STATES Patented February 9, 1904.

PATENT OFFICE.A

"WILLIAM P. KIRKPATRICK, OF NEWCASTLE, PENNSYLVANIA.

HURN.

SPECIFICATION forming part of Letters Patent No. 751,520, dated February 9, 1904. Application filed November 8, 1902. Renewed July, 31, 1903. Serial No. 167,805. (No model.)

To a/ZZ whom it may concern:v

Be it known that I, WILLIAM P.KIRKPAT RICK, a citizen of the United States, residing at Newcastle, ,in the county of Lawrence and` churn of this character in which the cream will be broken up into its component parts and the churning operation completed in theshortest possible time without the expenditure of any additional amount of power; and with this object in view the invention consists in the novel features of construction, combination, and arrangement ofparts, all of which will be fully described hereinafter, and pointed l out in the claims. l

In the drawings forming part of this specification, Figure l is a perspective view of a churn constructed in accordance with my invention. Fig. 2 is a vertical sectional view taken through the body of the churn proper. Fig. 3 is a detail perspective View of one of Fig. 4 is a detail sectional view of one of the dashers.' Fig. 5 is a vertical sectional view taken through the main frame and churn-body. Fig. 6 is a detail perspective view of the crank-shaft. Figs. 7 and 8 are detail perspective views illustrating the manner of pivoting the operating-levers upon the main frame. Fig. 91 is a detailfview'taken on the line 9 9 of Fig. 5. Fig. l() is a detail view illustrating the manner of connecting the pitman to the crank-shaft.

In carrying out my invention I employ a main frame A, consisting, essentially, of the,

parallel base-sills A', the uprights A2, and the cross-beam A3, secured to the upper ends of the forward standards. The standards may also be connected bymeans of transverse and longitudinal timbers, as most clearly shown in Figs. 1 and 2.

The churn-body B is preferably in the form of a rectangular-shaped boX and rests upon the forwardly-projecting' portions of the sills A', said churn-body having the sectional cover C. Working in the churn-body B arethree Vprovided with trunnions E2, resting in bearings E3, forming part of the bifurcated casting E4, mounted upon the cross-beam A3, the said trunnions being held in place by means of plates E5, which constitute' parts of the trunnion-bearings. The dashers D are each composed of the perforated sides" D2, perforated ends Da, andthe cross-strip D4, connecting the ends and to which the dasher-shaft D' is connected. Itwill be noted that two of the dashers are arranged with their narrow ends at the bottom, while the central dasher is arranged with its narrow end at the top, this arrangement-serving to break up the cream more rapidly thanwill otherwise occur.-v As before stated, the dasher-shafts are pivotally connected to the forward ends of the levers, and this connection is accomplished by means of a Clovis-coupling D5, and in practice I prefer to provide a series of perforations in the dasher-shaft, so that a variety of adjustments can be had. The rear end of each lever E is pivotally connected to the upper end of the pitman F by means of a coupling F', and the lower end of each pitman is pivotally connected to a crank-shaft G by means of a coupling The crank-shaft comprises three crank-sections Gr', each-being arranged onethirdof a circle, or one hundred and twenty degrees, from the next adjacent one.

A crank-wheel H is arranged upon one end of the crank-shaft and a balance-wheel H is arranged upon the opposite end of said shaft. In order to steady the movements of the levers, and consequently of the dasher-shafts, I employ a guide-board fI,`which rests Vupon a transverse beam I' and is slotted vertically, as shown at I2, the levers working in v"said slots, and consequently being guided 4in true vertical lines.

In operation the cream to be churned is placed within the boX, the dashers arranged therein, the churn-covers set in place, and the dasher-shafts coupled to the levers. The handwheel is then turned and the crank-shaft being driven will operate the levers, reciprocating the dashers, and inasmuch as there are three dashers it is obvious that the cream Will be subjected to a vigorous agi tation, and, furthermore, by having two of the dashers provided with perforated inclined ends arranged at one angle and the central dasher provided With perforated inclined ends arranged on an opposite angle the churning operation Will be materially expedited.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a churn oi' the kind described, the combination with a main frame, churn-body and dashers and shafts, of the levers pivotally mounted upon the main frame, pitmen connected to the said levers, and the crankshaft to which the pitmen are connected, and a vertically-slotted guide-board arranged upon the main rameand through which the levers operate, as speciiied.

2. In a churn of the kind described the combination with a main frame, churn-body, dashers and dasher-shafts, of the operatinglevers and means for operating the same, the guide-board supported by the mainframe and having a plurality of vertical slots, the operating-levers Working in said slots, as specilied.

WILLIAM P. KIRKPATRICK. 1Witnesses:

FRANK' B. HINKsoN, GEO. W. WALKER.

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