WILL MILK TEN COWS AT ONCE. 



When Dr. Clarke Gapin, now of Madison, Wis , was connected 

 with the Kankakee (111.) insane asylum, he made a trial of a patent 

 milking machine. This was several years ago and at that time the 

 machine was the only one of its kind in this country. It was the 

 property of the Thistle Milking Machine Co., of Glasgow, Scotland, 

 the machines being rented not sold, the one at the asylum being put 

 in for trial. A representative of the Kankakee Gazette who was 

 present at the trial of the machine, gained the following facts regard- 

 ing it: 



The principle upon which the milking is done is as follows: On 

 the first floor of the cow barn are the pump and the vacuum tank. 

 The former is worked by steam procured from the pasteurizing plant. 

 The pump exhausts the air from the tank, the suction from there 

 passing through a reducing valve that gives a constant suction of 

 seven pounds in the piping running horizontally above the cow's 

 heads throughout the stable. For every two cows a stop cock is fixed 

 in the piping, to which is attached a little box, in size and looks much 

 like a telephone transmitter, which is called a pulsator. Within that 

 box is the key to the whole mechanism, the modus operandi of milk- 

 ing by machinery. The little transmitter (for such it really is) con- 

 tains the mechanism which produces the rise and fall in the vacuum, 

 or suction, in the teat cups. When the suction is least the teat cup is 

 circular in form, as shown in Figure 1. As the suction increases the 



