US 71582 A
Description (OCR text may contain errors)
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vH, and preventing it from slipping, and thereby uncovering the teats.
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.TO ALL WHOM IT MAY CON CERN:
Bc it kno-wn that I, ISAAC COOK, o' the city and county of Philadelphia, and State of Pennsylvania, have invented a new and useful Milking-Machine; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawing, and'to the letters of reference marked thereon. l l
My invention consists in exhausting the air from the pail or `bucket into which milk is received as it is milked from the cow, and in giving a raising and lowering motion to the tcat-cups, and in the formation of the teat-cups, as is hereinafter shown and described. this specification- Figure' 1 is a side elevation,
Figure Ean end elevation, p
Figure 3 aplan view of the arrangement Aof the teat-cups, and
Figure 4 a. sectional elevation of the teatcup.`
i Similar letters refer to similar parts in the several views. v l
A is a vessel, answering the purposes both of a receiver, from which air is to be exhausted, and a bucket or pail, for containing milk as it is milked-from a cow. B is an air-pump, set upright on thc said receiver or bucket. C is a lever, which is hinged to thc link D, vibrating on the projection a of the curved arm E, xcd to the bucket. The air-pump piston-rod F passes through and is'attached to the lever C in an opening in it, and is guided by the boss b on the end of theV curved arm E. G is a pedestal xed to the bucket A, at right angles, or nearly so,'to the lever C. H is a vertical rod, which passes through-a corresponding opening in the end of the pedestal G. I is a' hollow cap, fixed to the upper end of the rod H. e e e c'arehollow tubes, radiz ating from the said cap I. They terminate each in a short, hollow cylinder, d, to which the teat-cups K are 4fired. L is'a lever, whose fulcrum is atA M, on the projection Gr` One end of is forked to embrace the rod The other end of itis connected by the rod Oto the lever C. P is an- H or the adjusting-collar N on it. elastic tubecommunicating respectively with the cap I and the receiver A. The length of it must be sufficient to allow of the teat-cups being adjusted to any height. The weight of the rod H, its appointments, and the 'tent-cups, is carried by the lever L, whose forked end takes, into the groove in the adjusting-collar N. e e e e ,are stop-cocks, in the several hollow cylinders l d d d, respectivelyt They are for discontinuing the operation of the machine on one ormore of the tea'ts, while it is continued on the rest., f is a stop-cock in the hollow head or cap I, into which thegpipes c c c c from the cylinders dal d al converge. It is fordiscontinuingthe oper= ation'of the` machine on all the teats at one and the same time, in case the cow be restless, or from any other causes.
The bucket or receiver A is placed beneath the cow, the same as an ordinary milk-bucket, the teat-cups mmediatelyl'beneath the teats. The set-screw g on the collar N is theulloosened, and the rod H raised until the tents take, each, into its respective teat-cup. The set-screw gis then tightened, securing its collar to the rod Then the cock H at the bottom of the bucket A is closed, and the cocks e e e e on the cylinders d ul dd opened, as is also the main cockf. vibrate the lever C, and the airpump B gradually exhausts the air from the bucket or receiver A, and through vthe medium of the elastic tube P, thc cap I, radial tubes c c c c, cylinders d, and the teat-'cups K, are also gradaA llyexhaustedof their air, which exhaustion of the air causes the tent-cups to ft the teats air-tight. The rod H, by means of the rod O and .the lever L, alternately raises and lowers with the piston of the air-pump,
which facilitates the operation of milking, and is similar to the stripping of a cow by a calf while sucking, or I to the pulling of the teatsby a milk-maid. As the air is gradually exhausted from the receiver, ete., the milk Bows from each teat into the teat-cups, and through thepipes e into thel head I; thence through the elastic tube P into the receiver or bucket A, from which it can be drawn bythe cock 7L. The falorum M on the projec= tion G- should be adjustable in the direction of the lengthof the lever L, to regulate the lift of the-teat-cups for free o r hard-milking cows.
The teat-cupsK are constructed, as shown in hg. 4, with tapering ends, orbecorne gradually smaller in diameter towards their upper ends, which thinness of the upper ends enables them to )it the roug'hcst tcats, and
On reference to thc accompanying drawing, making part of A also to collapse sideways, thereby giving them a, side pressure. The taper, as shown, is formed on the outside of the teat-cups,hut can be either inside or loutside.
What I claim as my invention, and desire to secure hy Letters Patent, is l 1. An air-pump so combined with a milking-machine that the milk will be drawn into the receiver or bucket without passing into or through the said pump.
2. Giving a. raising and lowering motion to the tent-cups, while milking, substantially for the purpose shown.
3. A stop-cock so combined with u cow-millier, and so arranged relative to the tent-cups that the operation of milking may be discontinued on all the tents :1t one and the same time. i
4. Bevelling or`thinning the upper ends of the tent-cups, either inside or outside, as -shown and described4 In testimony whereof, I hereunto sign my nemeA te this specification in presence of two subscrihing witnesses.
FRANCIS D. PAsronIUs, W. W. DoUenER'rY.