THIRTEENTH ANNUAL YEAR BOOK— PART IX 505 



while a load of this kind with my 10 H. P. steam engine would materially 

 check the speed, unless I had a heavy head of steam.' " 



Again I quote from the bulletin recently sent out by the Minnesota 

 State Creamery, at Albert Lea: 



"The gasoline engine for creamery or cheese factory use is attracting 

 considerable attention now, and there can be no doubt but that it is more 

 economical than steam in a great many creameries. The creameries that 

 receive hand separator cream only will find that by using a gasoline en- 

 gine and a smaller boiler their fuel bill will be materially reduced. Tlie 

 size of the gasoline engine that is necessary will vary from six to ten 

 horsepower, and the boiler used in connection with it would vary in size 

 from eight to twenty horsepower. The size of the gasoline engine needed 

 will depend on the amount of machinery used in the creamery, ^vhile the 

 size of the boiler needed will depend on whether cream is pasteurized or 

 not. It is, however, best to install a boiler large enough to take care of 

 any increase in business for some time to come. 



"It is always advisable to buy a horizontal boiler, even though it is of 

 small size, as it is more economical than is an upright boiler. 



"In the w^hole-milk creamery it is best to continue using the steam 

 engine, as it is a little more dependable where the farmer has to wait for 

 his skim-milk, and then considerable steam is used for heating the skim- 

 milk and the exhaust from the steam engine can be used for this purpose. 

 There are, however, some creameries handling whole milk that use gaso- 

 line power with good results." 



Regarding the danger of gasoline odor tainting the butter. To be sure 

 it will, if the fumes are exposed to the cream and are in the work room, 

 but it is no more necessary than getting separator oil in your cream. AH 

 you need to do is to keep it out. At Dewar we operated our engine for. 

 three or four months within three feet of the cream vat, piping the ex- 

 haust up through the roof. We did this because at that time there was 

 no other place for it. We experienced some trouble with gasoline taints, 

 but we now have it in a room by itself and there is absolutely no odor 

 and we have no more trouble. 



As to the dependability of the gasoline engine, Mr. Edwards has expe- 

 rienced trouble but once, and that was soon overcome without delay to the 

 farmers. You must supply your engine with gasoline and sparks, and as 

 long as you do that your engine will -run. Occasionally some little cast- 

 ing will wear out, but it is quickly replaced. We have a friction clutch, 

 operated from the work room by a lever. 



The question of whether a gasoline engine and small boiler is economi- 

 cal for your creamery is up to you to decide. When you begin thinking 

 of a change there will be several who will discourage the idea. Simply 

 accept practical facts and decide for yourself, as you are the one who is 

 burning the coal. 



I will be very glad to answer any inquiries I can regarding the size 

 of engine, boiler, etc., and to help anyone who wants to reduce their 

 power cost. 



The time is coming — yes, it is at hand, when our creameries must be 

 more efficient, and the first place to begin working for efficiency is at the 



