US25022A - Improvement in machines for milking cows - Google Patents

Description

s. w. LOWE.

Milking Device.

Patented Aug. 9', 1859.

hur, Wnhin mn. n. C.

NITED STATES PATENT SAMUEL \V. LOIVE, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN MACHINES FOR MILKING COWS.

To all 1072 0127, it may concern.-

Be it known that I, SAMUEL W. LOWE, of the city of Philadelphia and State of Pennsylvania, have invented a new and Improved Apparatus for Milking Cows; andl do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

My invention consists in providing a cup on which is stretched a diaphragm perforated with holes for receiving the cows teats, and also adapted for being connected with an air pump in any suitable manner. The moment the pump is set in motion the bag of the cow adapts itself to the diaphragm and fits so closely that no air can enter the cup. At the same time the external pressure of the air, acting on the bag, forces the milk through the teats into the cup, from whence it passes through a pipe to the pump, and is discharged from the latter into any convenient receptacle.

In order to enable others to make and use my invention, I will now proceed to describe its construction and operation.

On reference to the drawings which form a part -of this specification, Figure l is a sectional view of myapparatus for milking cows; Fig. 2, an external side View of the pump which forms a part of the apparatus; Fig. 3, a sectional view of Fig. 2; Fig. 4, a sectional view of the suction-valves on the line 1 2, Fig. 1; and Fig. 5,a sectional view of the discharge-valve on the line 1 3, Fig. 1.

The same letters of reference allude to similar parts throughout the several views.

A is a funnel or other shaped cup of thin metal or other suitable substance, and on the top of this funnel is secured a diaphragm B of leather, gum-elastic, or other like material, the top of which is slightly concave, in order to approximate as near as possible to the shape of the cows bag, and is perforated with four holes to receive the cows teats.

E is an elastic pipe, one end of which is attached to the bottom of the cup A, the other to the projection a on the barrel of the pump. In this projection are two chambers b and I), each of which communicates with the inte rior of the pipe E through an orifice in the partition, each orifice being furnished with a valve, the valve of one orifice opening into one chamber and the valve of the other orifice into the-other chamber.

The barrel of the pump is divided by a partition e into two compartments 5 and 6. These have pistons attached to rods dd, which pass through the ends of their respective compartments, on the outside of which they are attached to the cross-heads f and f, the latter being connected together by the upper and lower rods h and h. To the top of one of the cross-heads is jointed a rod G, the opposite end of which embraces the cranked portion of the shaft H, which turns in the top of the standards J and J, the latter, as well as the pump-barrel, being secured to the base K. The chamber b communicates through an orifice with the compartment 5 of the pumpbarrel and chamber 1) through another orifice with the compartment 6. On the barrel of the pump is another projection 10, to which the end of the discharge-pipe M is attached, the interior of the projection communicating through one orifice into one of the pump-compartments and through another orifice to the other compartment, both orifices having Valves, which open toward the discharge-pipe.

The operator is seated on a stool, to the front of which is attached the base K of the pump. The stool being brought into proper position, the operator places the cup underneath the cows bag, taking care that the teats enter the orifices in the diaphragm. By turning the handle N on the crankshaft H a reciprocating motion is imparted'to the pistons, so as to produce a vacuum in the cup A. The moment this takes place the bag of the cow, by the external pressure of the atmosphere, adapts itself to the diaphragm, so that no air can enter the cup, which consequently retains its hold without assistance. As the operator continues to turn the handle a continuous exhaustion is maintained in the cup, so that the milk flowing from the teats enters the cup A, passes along the pipe E, enters first one compartment and then the other of the pump, according to the direction of the pistons, and is forced out into the discharge-pipe M through one or the other of its entrances into the compartments. Thus a constant flow of milk passes from the discharge -pipe into any convenientlysituated bucket as long as a supply remains in the bag and the handle is turned.

It will be seen that the perforated diaphragm has a tendency to maintain the bag of the cow in its natural position and to keep the teats in such a state of suspension within the cup that the milk will flow freely from the same.

Disclaiming the broad principle of withdrawing the milk by means of a pump or other exhausting apparatus, and also the devices described in the application of John V. Kingman, rejected August 11, 1856, and those described in the rejected application of Robert Kershke, of St. Louis,

I claim and desire to secure by Letters Patent The cup A with its perforated diaphragm B, when constructed, as described, to receive all the teats of the cows bag by having an opening in the diaphragm for each teat and combined with an exhausting apparatus, constructed substantially as herein described, and for the purpose set forth.

In testimony whereof I have signed my name to this specification before two subscribing witnesses.

SAML. W. LOWE. Vvitnesses:

HENRY HOWSON, WILLIAM E. WALTON.

Images