US336354A - Churn - Google Patents

Description

(No Model.)

J. E. SHAW & J; T. SIMPSON.

OHURN.

NQ. 336,354. Patented Feb. 16, 1886.

ATTORNEYS. V

UNITED STATES PATENT OFFICE.

JAMES E. SHAW AND JAMES T. SIMPSON, OF HOLDEN, MISSOURI.

SEECIFICATIQN forming part of Letters Patent No. 336,354, dated February 16, 1886.

Application filed June 30, IP85.

To all whom it may concern..-

Be it known that we, JAMES E. SHAW and JAMES T. Snrrson, both of Holden, in the county of Johnson and State of Missouri, have invented a new and Improved Churn, of which the following is afull, clear, and exact description.

Our invention relates to that class of churns wherein two concentric frames which constitute or carry the dashers are revolved in opposite directions; and the object of our invention is to provide a churn wherein the dasherblades will alternately act to elevate and depress the cream, so that in the end the top of the cream will be on a general level; and a further object of our invention is to construct an inner dasher which, when revolved in one direction, will throw the cream to the blades of the outer dasher, but which, when the direc tion of rotation is reversed, will act to throw the cream or gather the butter in the center of the churn.

The invention consists of certain details of construction and combinations of parts, as will be hereinafter described, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a side elevation of our improved churn, a portion of the barrel being removed to disclose the construction of the dashers. Fig. 2 is a central vertical section of the churn, taken on line as a, Fig. 1; and Fig. 3 is a sectional view taken on line y y, Fig. 1.

A represents the body or barrel, and B the cover, of the churn. This cover 13 is made in two sections, 0 0, the section 0 being so arranged that it can easily be removed for the purposeofpouringinandinspecting thceream. A frame or stand, 0, arranged to support the dasher-operating mechanism, is securely fastcned to the section 0 of the cover B. This operating or driving mechanism consists of two beveled gears, E and F, that are keyed to a shaft, a, that is mounted in bearings formed in the frame 0. The gear F engages with a beveled pinion, b, that is fixed to the shaft 0 of the inner dasher, H, the lower end of the shaft 0 being mounted in a step, e, that is fixed to the bottom of the churn-body A, while the Serial No. 170,258. (Xo model.)

upper end passes through and is guided by the brace-rodf of the frame 0. The gear E meshes with the beveled pinion 71, that is fixed to the cylindrical shaft 9 of the outer dasher, I, said shaft 9 inclosing the shaft 0, as shown in Fig. 2. Such being the construction of the driving mechanism, it will be clearly seen that if the gear-wheel E, which is provided with a handle, be revolved in the direction of the arrow the dasher-shafts will be revolved in the direction of the arrows shown around them.

W'e are aware that such a construction for operating the dashers as is above described has heretofore been used, and we therefore do not claim these features per se; but we are not aware that churn-dashcrs have been heretofore constructed in the form and manner now to be specifically explained.

The outer dasher consists of two substantially-concentric strips, 70 and Z, which are rigidly connected to the lower end of the cylindrical shaft 9, and guided below by the shaft 0, which passes through them to rest within the step 6. Between the strips 70 and Z we secure several pairs of dasher blades or buckets, as i 73. These blades or buckets are put in pairs in about the same horizontal plane, one blade in each pair being on either side ofthc shaft, but both blades in the same pair being in the same diagonal plane. Every other pair of blades i z" is put in at about the same angle, and the intervening pairs are put in at an opposite angle, so that taking the dasher circuniierentially every second blade will have a tendency to elevate the cream and the other blades will have a tendency to depress it. The blades that act to elevate the cream when the dasher is revolved in the direction of the arrow are marked i, and those that tend to depress it are marked 6. The vertical blades or buckets n n are also placed between the strips k Z, one of which, n, acts to throw the cream outward, while the other, it, acts to cause an inward current.

The inner dasher is composed of a series of flat blades, m m, of which there are preferably four that are rigidly secured to the inner revolving shaft, 0. These blades are so twisted that the sides which would be in advance when the dasher is revolved in the direction of the arrow q are bent inward, so that instead of presenting a sharp edge that would simply cut through the cream the blades pre sent a tangential surface, which strikes the cream and creates a current toward the outer dasher.

As before stated, the dasher-bladesi z" are arranged in pairs, each pair being in substantially the same vertical plane, but on opposite sides of the dasher, so that each pair are in the same diagonal plane, and will act to alternately create an upward and a downward current.

In operation our churn is at first started in the direction of the arrows and the rotation of the dasher-frames continued until the cream has separated, the action of the inner dasher at this time being to induce a current toward the outer dasher-blades; but when the butter has formed the direction ofrotation is reversed, and the inner dasher will then act to gather the butter in the center of the churn.

Having thus described our invention, we claim as new and desire to secure by Letters Patent- 1. The combination, with a churn and its operating mechanism, ofan outer dasher-fraine carrying fixed dasher-blades arranged in pairs, one blade of each pair being mounted on either side of the central shaft, and both blades being mounted in substantially the same diago nal plane, substantially as set forth.

2. The combination, with a churn and its operating mechanism, of an outer dasher-frame carrying dasher-blades arranged in pairs, one blade of each pair being mounted on either side of the central shaft, and both blades being mounted in substantially the same diagonal plane, and an inner series of dasher-blades, the forward edges of said blades being bent inward toward the central shaft, substantially as described.

3. The combination, with a churn and its operating mechanism, of two dasher-frames, as H and I, said frame I being provided with diagonally-mounted dasher-blades, as it, and said frame H being composed of blades, as m m, bent so that their leading edge will approach the central shaft, substantially as described.

JAMES E. SHAW.

J AMES T. SIMPSON.

lVitnesses:

W. O. HARLAN, WM. W. GAUNT.

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