CALIFORNIA OLIVE CULTURE EXTRACTING OIL. 63 



of the above, one following the other in the same groove. The 

 horse should work on the outside of the building containing 

 the crusher. To make one hundred gallons of oil each day 

 would require two good presses. The one best adapted for the 

 purpose, so far as I have seen, is that used for making 

 oleomargarine. Such presses could, with very little expense, 

 be worked by the horse power used for crushing the berries, so 

 that one man could do all the crushing and pressing. The 

 press I am using is an old-fashioned wooden beam press. The 

 beam is twenty-six feet long, and with a large box filled with 

 rock suspended at the extreme end, the power can be increased 



The Power House power operated by horse power from an independent 



building. 



to one hundred and fifty tons. The press with the differential 

 pulleys cost about $150. Such a press cannot be improved 

 upon for expressing the oil, but the additional labor and the 

 time lost in changing are so much greater than would be 

 required for the oleomargarine invention, that the latter would 

 facilitate the work and be cheaper in the end, besides taking 

 up so much less room. The crushed olives are put in the press 

 in cheeses about three feet square and three inches thick, with 

 wooden slats between each cheese. Ten or more cheeses can be 

 put in at each pressing. I use coarse linen cloth to contain 

 the crushed olives. The fluid that is expressed is put in large 

 tanks and left for sixty to ninety days, when the oil will 

 separate, and being lighter will rise to the top, where it can be 



