US792952A - Churn-dasher. - Google Patents

Description

PATENTBD JUNE 2o, 1905.

R. A. WOOD.

CHURN DASHER.

APPLICATION FILED MAR.23,1905.

I I I attenua UNITED STATES Patented June 20, 1905.

PATENT OEEICE.

CHURN-DASHER.

SPECIFICATION forming part of Letters Patent No. 792,952, dated June 20, 1905.

Application filed March 23, 1905. Serial No. 251,649.

.o a/ZZ whom it may concern: v

Be it known that I, RosEBnR'r A. Woon, a citizen of the United States, residing at Jonesville, in the county of Lee and State of Virginia, have invented certain new and useful Improvements in Ohurn-Dashers; and I do declarethe following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to churn-dashers; and one of the principal objects of the same is to provide means for forcing' air down through the hollow handle of the dasher to the bottom of the churn to agitate the milk.

Another object is to provide means for revolving the dasher-arms oppositely at each alternate stroke of the dasher and at the same time to force air to the bottom of the churn and up through the body of the milk in the churn.

These and other objects are attained by means of the construction illustrated in the accompanying drawings, in which# Figure 1 is a central vertical section of a churn-dasher made in accordance with my invention. Fig. 2 is a plan view of one of the dashers. Fig. 3 is a transverse section through the foot or base portion of the dashertube, and Fig. 4 is a perspective view of the spring returning device for returning the dasher-tube at the end of each stroke.

Referring to the drawings for a more particular description of the invention, the numeral l designates the tubular handle provided at one side with an air-tube 2, which opens to the atmosphere at 3 near the upper end, and at the lower end of said tube the opening 4 communicates with the interior of the handle or tube. Fitted into the upper end of the tube or handle l is a suitable valve 5.

The dasher-tube 6 has upon its upper end a valve 7 and below said valve a sliding sleeve 8, connected to the valve-seat by springs 9 of any suitable character. The dashers 10, which are formed similarly to propellerwheels, are fitted to revolve freely upon the sleeve 8 and are prevented from endwise movement by means ofthe collar 11. The

dashers are placed upon the sleeve with the arms oppositely inclined in order that at each upward movement one of the wheels will revolve, while at the opposite movement the other will rotate. In this way there is a constant agitation of the milk within the churn. At the lower end of the dasher-tube a base or foot piece 12 is secured by means of a threaded connection, and said base-piece is provided with a transverse aperture 13, extending from end to end of said foot-piece. A screw or other fastening means 14 may be utilized for securing the dasher in place centrally within a churn.

The operation of my churn-dasher may be described as follows: At each downward inove" ment of the handle l air is forced through the dasher-tube and through the openings in the foot-piece up through the body of the milk, the dasher-arms of one of the wheels revolving during the movement of the handle. At the opposite stroke of the handle the other dasher revolves and air is drawn into the hollow dasher-tube, as will be understood, the springs serving to assist the return of the parts to the original position.

From the foregoing it will be obvious that my invention is comparatively simple in construction, is elficient in use, and may be quickly applied to any ordinary churn.

Various changes in the form, proportion, and the minor details of construction may be resortedV to without departing from the principle or sacrificing any of the advantages of this invention.

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

I. A churn dasher comprising a hollow dasher-tube, a sliding sleeve on said tube, dasher-wheels fitted to rotate freely on said sleeve, a handle for operating said dasher, said handle being provided with an air-tu be, a valve in the end of said handle, a valve in the dashertube, and means whereby air is forced to the bottom of the churn and up through the milk at each operation of the dasher, substantially as described.

2. A churn dasher comprising a hollow dasher-tube, provided with a valve at its up- IOO per end, a handle provided with a valve at its upper end and adapted to fit over the dashertube, an apertured foot at the lower end of the dasher-tube, said apertures communicat- 5 ing with the bore of the dasher-tuloe, a sliding sleeve on said tube, and oppositely-disposed dasher-wheels mounted to rotate freely on said sleeve, substantially as described.

3. A churn dasher comprising a hollow IO dasher-tube, having a valve at its upper end, a sliding sleeve thereon, springs secured to the sliding sleeve and to the valve-seat, a tubular handle provided with an outer air-tube, a

valve at its upper end and a foot-piece at the lower end of the dasher-tube, said foot-piece 15 having` a transverse opening therein which communicates with the dasher-tube, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing Wit- 2O nesses.

ROSEBERT A. WOOD.

Witnesses: K

JAMES C. OBR, RICHARD L. WOOD.

Images