CENTRAL SCIENTIFIC CO., CHICAGO, TJ. 8. A. 



379 



No. 9738. 



No. 9742. 



No. 9748. 



B738. 



974?. 



974<i. 

 9748. 



TESTER, Mackey's Spontaneous Combustion, for testing oils or oily mixtures for liability to 

 produce spontaneous combustion. The apparatus consists essentially of a double walled cyl- 

 indrical copper water bath with asbestos packed cover, carrying two air circulation tubes. 

 Height inside, 7 inches; diameter inside, 4 inches. Complete with thermometer reading from 

 to 250C., 6 wire gauze cylinders, 1 pound absorbent cotton, Bunsen burner, support stand 

 and 50 cc graduated cylinder $25.00 



THERMOMETERS, see general heading Thermometers. 



THIEF. Blackmar Oil, for taking samples from either top, center or bottom of tank cars, or 

 other storage vessels. The receptacle remains closed until the desired point is reached, when 

 by dropping a lever it fills up and the oil is held intact until delivered into a container. The 

 instrument will take 8-ounce samples and operate to a depth of 12 feet. Oil thief is in a zinc 

 case, complete with 8 eight-ounce cork stoppered bottles fitted into separate compartments 

 in a substantial carrying ease 25x11x3^ inches, with lock and handle 32.00 



THIEF. Blackmar Oil, only of Xo. 9742, in zinc case 16.00 



THIEF, Glass, for Oil, simple form with rubber bumber 2.85 



THIEF, Rorrison Oil, consisting of a heavy glass tube with a capacity of 12 ounces, mounted in 

 a brass frame with special valve at the bottom, which is automatically closed by striking an 

 adjustable nut when the proper depth is reached. In this way correct" samples may be taken 

 at any depth. Complete with depth rod permitting samples to be taken at any depth np to 

 4 feet from the bottom of the tank ' 17.00 



Note: Longer rods may be secured with No. 9748 at a slight additional cost. 



No. 9756. 



VISCOSIMETERS 



No. 9758. 



9756. VISCOSIMETEE, Engler. latest form, for light and heavy oils. Consists of gold-plated oil 

 cup with platinum outlet tube, surrounded by brass water bath. Complete with two stand- 

 ard thermometers 10 to 50"C. and 10 to 150 C., flask graduated at 200 ec, and tripod with 

 ring burner 75.00 



9758. YISCOSIMETER, Engler, Modified by TJbbelohde, with double walled lid. oil bath totally im- 

 mersed, stirring arrangement and a device for controlling the size of the outlet opening. 

 Complete with two standard thermometers 10 to 50"C. and 10 to 150C., 200 ec flask with 

 two marks and tripod with ring burner 90.00 



