US356737A - Means for operating churn-dashers - Google Patents

Description

(No Model.)

W. STUART. MEANS PGR OPERATING GHURN DASHERS.

No. 356.7374. YPentemted Jan. 25, 1887.

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r. wmzngm n c ihvrrnn rares i nrnnr @erica lTHAMEB vW. STUART, 0F CEDAR C'ITY,

MISSOURI.

PSCZ-ICATON forming part ci' Letters Patent No. 356,737, dated January 25, 1887.

Application ilcd November 1. 188

(No inodelJ .To all whom t may concern:

Be it known that I, l'rniiinn W. STUART, of Cedar City, in the county of Callaway and State of Missouri, have invented certain new and useful Improvements in Means for Vibrating C-hurn-Dashers; and l. do hereby declare that thc following is a full, clear, and ex act description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which forni part ol' this specification, in which- Figure lis a side elevation of niy improved churnonotor. Fig. 2 is a top plan view of the same with the upper brace or conneciingpiece removed, and Fig. 3 is a detail.

This invention relates to improvements in churn-motors, and has special reference to the means i'or imparting to the dasher an alternate rotary motion.

The invention consistsin the novel construction and arrangement of parts hereinafter deseribed,and particularly specified in the claim.

A designates the base or platform of the inotor, of general rectangular forni. Frein one end ol' this base rises a vert-ical standard,B,of suitable height, and from near the opposite end oi the base rise two vertical similar standards or uprighls, C U, between which is journaled a friction-roller, D, which serves a pun pose hereinafter more particularly referred to. The roller l) is journaled between uprights C at a point considerably higher than the top oi' a churn, X, which is placed upon the platform during the operation of churning, and is hereinafter referred to.

E E designate two similar horizontal bracepieces which extend from the rear upright, B, forward to and beyond the uprights C. The brace E is secured below the frictioirroller andthe brace E above the same. These bra-ees are of sufficient width at their front ends to be secured atltheir edges between uprights G C in any suitable manner. Freni these uprights the braces extend inward toward upright B a short distance, and are then narrowed suddenly,forining two opposite notches, e. From these notches they extend rearward a short distance and are again narrowed, forming a second pair of notches, e. Frein these notches thebraces extend to upright B, to which they kept in one position on are secured. The notches e e ol braces E E serve a purpose hereinafter explained.

The front ends of braces E E' extend beyou d the uprights C, as described, and are provided with central vertical longitudinal slots, F, in which rests and plays or rotates the upper end of the churn-flasher W.

G Gr designato levers pivoted at their lower ends on opposite sides of upright B, near the lower end thereoiand extending upward from their pir ots above the upper brace, E', and have handles or suitable handhelds on their upper ends, by which they are alternately reciprocated.

H designates a rope or cord having one end secured to one lever G at a suitable point. Thenceit extends to and takes one turn around the roller D. Thenee it passes to and takes one turn around the upper end of the cylindrical handleof dasher YV. Then it runs back to the roller and takes a second turn around the latter, rbut oppositely to its first turn thereon, and thence to the other lever G', where its remaining end is secured. By passing the cord around the roller, as described, between the levers and churn-dasher handle, the cord is always the handle of the dasher, and cannot run up and down thereon as itis rotated, or cause the handle to vibrate vertically in operation.

The levers G are kept in position on their pivots on upright B by the following means: The base or head b of upright B is widened, (giving the upright somewhat the shape of an inverted letter TJ being ooncayed or rounded from the upper edges oi' the head1) inward, on each side, to the Inain body of the upright, as shown. The lower ends oi the levers are rounded or beveled to correspond with the concaved notches of head Z1, above referred to, in which they play. The pivot of the levers is placed sufficiently above the head Z1 to permit the levers to be putin position thereon or removed therefrom when brought horizontally inline with the base A, as their side edges will then clear the upper edges of the concave notches; but when in working position upon upright B, (having a play in an are of about ninety degrees) if they should worl; outward on their pivots their rounded ends would en- IOU gage against the concave notches of head b and prevent their escape from their pivots. This construction, while very useful and efficient, I do not wish to coniine myself to, as the levers could be secured to the uprights in Various Weltknown ways.

The dasher IV is provided at its lower end, which enters the churn, with a series of blades or beaters, preferably propeller-shaped blades, as shown, to agitate the cream.

The manner of using the motor is as follows: The churn X is placed upon base A vertically beneath the inner ends of the slots F of pieces E E. The dasher XV is then placed in the churn, its handle extending upward between the pieces E E,and resting against the inner ends of the slots F F thereof, being held securely therein by the rope H, as described. The levers are then reeiprocated alternately, and,through the medium of cord H,rotate the dasher in alternate directions in a very rapid and powerful manner. The notches e e of pieces E E may he used to regulate the length of thestroke of the levers by causing the inner ends of the levers to enter the same, which is easily done by the operator,and thus the number of revolutions of the dasher may be equalized, thereby producing better and more efn eient work. rPhe notches also save strain ou the operator by obviating the necessity of his stopping the stroke of the levers by main force, as'each lever, when engaged by a notch, will, through the cord H, instantly stop the movement of the other lever. The

churn Y. is preferably secured to the base A by suitable fastening devices forming no part of the present invention, so that it will not rock or move during the operation of churning.

W'here very large motors are to be constructed, the base A may be dispensed with and the uprights secured directly to the floor of the building in which the motor is to be used.

I am aware that cords 'and levers have been used in various ways to operate the dasher of a churn, therefore I do not claim such,broadly; but,

Having described 4my invention, what I claim, and desire to secure by Letters Patent, 1s-

Ina churn-motor, the combination7 with a suitable base, kof a rear upright and two front uprights having a frictionroller journaled between them, and connecting-braces E Ff., having slots F,and stop-notches e e',with the levers G, pivoted at their lowerends to the rear upright, and adapted to be engaged in the notches c c', to limit their motion, and actuating-cord H, passing from onelever around the friction roller, around the dasher handle, which is engaged iu the slots F of the braces, and again around the roller in a contrary d rection to the opposite lever, all constructed and arranged to operate substantially in the manner and for the purpose described.

In testimony that I claim the foregoing as my own I affix my signatures in presence of two witnesses.4

ITHAMER IV. STUART.

Vi tnesses:

J oHN L. RHoDns, JOHN W. REYNOLDS.

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