126 DAIRY LABORATORY GUIDE 



unload them; while in the regular platform ele- 

 vators it is necessary to wait until the elevator is 

 loaded. Thus, it will be seen that the endless chain 

 elevator saves a great deal of help. 



Test bottle rack with perforated top, for shaking 

 or emptying twenty-four to forty bottles at the same 

 time. 



Automatic governor brake to stop engine in case 

 of governor belt breaking or coming off. 



Heater for warming water going into boiler; the 

 exhaust from engine may be utilized for this pur- 

 pose. 



Weigh can gate opener, saves stooping. 



Castors on movable vats and creamery appliances. 



Steam gage in working room to show boiler 

 pressure. 



Slatted draining shelves for all creamery appara- 

 tus. 



Place ice-box above the refrigerator with a sloping 

 floor. Connect a drain at the lower side so as to 

 run the water into a small pipe leading into a vat, 

 which is arranged with slat shelves that hold one-half 

 pint, pint, and quart bottles, the water reaching just 

 to the neck of each. Insert an overflow pipe and 

 drain the water from this into another vat beneath, 

 where milk and cream cans may be placed. The 

 water in the latter vat is allowed to rise to within an 

 inch of the top of the can before it reaches the over- 

 flow. Thus, after the ice has been used for cooling 

 the refrigerator,- the ice-water may be utilized twice 

 for cooling purposes. 



