US93471A - Improvement in churn-dashers - Google Patents

Description

- thereof'.

in the operation of Ithe churn.

D. K. ovnnrnsnn,A or WILLIAMsPoRT, PENNSYLVANIA.

. Laim Patent No. sla/undated August 10, 1869.

IMPROVEMENT IN CHURN-DASHERS.

The Schedule referred to intl-lesel Letters Patent and making part of the same.

To all whom 'it may cm1-cern:

Be it known that I, D. K. Ovnunrsnn, of Williams-A port, in thev county of Lycoming, and State' of Pennsylvania, have invented certain new and useful Improvements in Churn-Dashers; and I doY hereby'declare that the following is a full and exact description My invention relates to reciprocating dashers, whether operated by hand or by mechanism, and to means for admitting an adjustable quantity of air i'nto the cream through the rod, or handle, and to an improved construction of the handle, which avoids-diiiiculties heretofore experienced.

I will proceed to describe what I consider vthe best means of carrying out my invention, and will afterward .designate the point which I believe tp be new.

The accompanying drawings form a part ofthis speciiication. I t Y, Figure 1- is a side elevation of the entire dasher;

Figure 2 is a cross-section of a portion on a larger scale; and

Figure 3 is a horizontal section, on the line S S of fig. 2.

Similar letters of reference indicate like parts in all the figures.

A is the body, or piston'of the dasher, and

B B is the wood-portion of the rod.

The rod is firmly united to the body by means of the iianged piece a, and screws, or by other suitable means. I do not claim, as new,auything in this portion of the constructie j The lower part, A, of the handle is bored out, 'so as to afford an ample passage along the centre, through which air may descend, to mingle with the'cream and aid The benefit due to the introduction of the air near thebottom of the churn has been-before known, and means have been provided for introducing it through the stem er rod,l but my in vention-diifers in the provisions effecting and controlling this.

' The upper end of the part A is turnedY smaller, and receives the tube D, which is firmly fixed by screws, or otherwise. Its exterior is exactly equal in diameter to the exterior-.of the rod A, and it forms, in fact, a rigid, stout continuation'thereof The upper por'- tion, A', is correspondingly turned smaller, and is correspondingly fitted and secured in the upper end ofthe vtube D. The part-s A, D, and A', form a continuous and rigid handle or dasher.

ALarge holes, (l d, are formed in opposi'tesides of the tube D, and the air to arify the cream is received through these holes. IA make the part Aof the hau- (lle of such length that the holes d d are always above the'cover of the churn. I can extend the solid part A of the handle above, toany height desired.

Where it is'necessary to make a connection to mai c hin'eiy, I can mortise through, or otherwise treat the.

upper part A, as may be required,^'there being no air-v I passage throughl it, or any other condition which requires any peculiar construction. It may be enlarged, contracted, perforated by bolts, mortises, or otherwise treated, at will. This is an advantage due to my invention over an-yappliance for receiving air through the extreme upper end of the rod.

I mount within the tube D, a smaller tube, E, which is similarly perforated with holes, e c.

This inner tube is of such size as to fit closely, but turn freely within the outer tube'D. Its inner edge is turned inward, or contracted, so as -to form an internal flange, as indicated by e.

-Against the end surface of this flange I t a valve, G, opening downward, so that the air is allowed to descend freely, but cannot return.

. The length of the inner tube E is but little-less than that of the clear space between the ends of the Wooden parts A and A. I provide a smaller hoiizontal slot, extending about a quarter of the way around in the outer tube D, and through this I insert a pin or screw into the inner tube E, as indicated 'by E2. The outer end of the pin E2 is smoothlyv rounded, and projects but little, if any,

- beyond the outer surface of the tube D. It is just sufficiently prominent to allow it to be acted on by the thumb, or by the point of a nail, or other object, so as to thereby turn the inner tube E and its connected valve G.

The construction of my improved churn-dasherbein g now fully detailed, its operation will be readily under' stood.

Vheu it is desiredl to admit a fullsupply of air, the inner tube E is. turned so that the holes e correspond with the holes din the outer tube D. When it is desired to cheek the introduction of air, the inner tube E is partially turned, by acting. on the pin E2, and, in turning, the holes e and al cease to coincide exactly. They become contracted, and by further turning the inner tube E, the defective area of the holes may be contracted or enlarged to any extent desired, or they may be closed altogether.

I make the tubes D and E of brass, plated with sil ver, or other metal which will withstand the action of Aany acid which may reach them. In practice, there is little risk of the milk reaching theseparts. A

It is much easier to bore my short --rodA than to bore the whole length of a handle, and very ordinary machinery is sufficient for my purpose.

I can makethe Ihole quitelarge, and thus admit a larger quantity of air than isu'sually introduced through -the rod.

The outer tube') may bel lapped upon the wood "parts to any extent desired. I proposealways to make it'lap so far that the junction shall be very strong and 'viously-known construction.

It will be observed, that by sinking the outer end of the pin E2 so as to be about Hush with the surface Y of the tube D, I can Wipe the whole length of the rod with a cloth, or the like, without obstruction.

The tubes D and :E maybe ground together, or otherwise fitted with great nicety.

It will be usually suiicient to procure nice finished tubes, of exactly the right size, so that one ts and turns closely and easily wi thin the other, without grinding or other special preparation.

The interior of the tube D may be connected with the screw-thread at each end, and the parts A and A' may be screwed therein, so as to be easily introduced and removed, if desired. v

I can, if preferred, hinge the valve G to the fixed tube D, instead of the turning-tube E. It is necessary, in such case, to simply braze in, or otherwise provide a suitable internal ange on the fixed tube D, and to properly attach the valve G thereto, so that it shall lact against the internal ange on the fixed part, in-

stead of such flange on the turning-tube. With such modification, the turning-tube E may be mounted independently above, being within the fixed tube D,^as here represented, or it may, if preferred, be mounted outside, and it will stillperform the same function.

I claim the tubes D and E, fitted one within the other, and provided with the holes l e and pin E, or its equivalent, combined and arranged as represented relatively to each other, and the parts A and A of the rod, or handle of the churn-dashel', as and for the purposes herein set forth.

In testimony whereof, I have hereunto set my name, in the presence of two subscribing witnesses.

D. K. OVERHISER.

Witnesses:

J. A. HILLEs, Trios. MAITLAND.

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