COMPARATIVE STUDIES WITH COVERED MILK PAILS 101 

Fic. 37—Photograph showing separate parts of cover and strainer device 
of the Haymaker pail. 
tion’ by a wire hoop, the entire strainer attachment being 
secured to the under side of the cover by means of a small 
key. The separate parts of this strainer and cover are shown 
by the photograph in Fig. 37. The small cistern comes di- 
rectly under the opening of the funnel on top of the cover so 
that the milk as it enters the pail falls directly into this cistern 
without passing through the strainer cloth. As soon as this 
cistern is filled the milk is strained upward through the cloth, 
dripping over the edge and falling into the pail proper. The 
purpose of this device is to avoid the disadvantage of some 
other pails where any dirt falling into the opening is held 
where succeeding streams of faille beat it to pieces and wash 
it through into the milk. In this pail the milk enters the small 
cistern where the following jets of milk cannot strike it 
and thus gives an opportunity for any dirt to settle in the 
bottom and it is, therefore, not driven through into the pail. 
Owing to circumstances*it has been possible to make only a 
few tests with this strainer device. The results of these 
trials are given in Table 25. 
#See note at bottom of page 92. 
