LABORATORY SUPPLIES AND CHEMICALS 



281 



STIRRER, GRAMERCY ELECTRIC 



This excellently designed apparatus will be found 

 useful for a number of purposes besides general 

 stirring. The motor is fitted with a pulley wheel, 

 which can be brought to a vertical position by a turn 

 of the adjustable extension clamp attaching the mo- 

 tor to the support and allowing the motor to be 

 raised or lowered, as may be desired. 



The removable attachment holding the stirring 

 rod is provided with a union fitting, which firmly 

 holds the stirrer and allows it to be quickly and 

 easily removed. The Universal Motor, 1*5 H. P., 

 which can be operated on either D.C. or A.C., is 

 fully enclosed with an aluminum cover to prevent 

 dust or particles from getting to the working parts. 

 It is attached to the support by means of an ad- 

 justable extension clamp. The heavy iron support, 

 with base 16 cm. x 25 cm., is fitted with a hollow 

 upright through which passes the wires from the 

 rheostat to the motor, which, above the rod, are 

 sheathed in flexible metallic tubing. A rheostat, hav- 

 ing ten steps, is neatly fitted under the base of the 

 support. 



Price with support, as illustrated $30.00 



3815(d) 



3816 3818 3820 



3816 STOPCOCKS, brass, double ends, for tubing connection; bore, % in., 65c; 



y 4 inch $1.00 



3818 STOPCOCKS, brass, with male screw and end for tubing; bore */& in., 



75c ; bore % inch 1.00 



3820 STOPCOCKS, brass, with female screw and end for tubing; bore l /s in., 



75c ; bore J4 inch 1.00 



3822 3824 3826 



3822 STOPCOCKS, brass, with double male screws; bore Ys in., 75c; bore % in.. $1.00 

 3824 STOPCOCKS, brass, with double female screws; bore ^ in., 75c; bore % in. 1.00 

 3826 STOPCOCKS, brass, with male and female screws; bore Y% in., 75c; bore 



VA. inch . 1 1.00 



i 3827 



3827 STOPCOCKS, brass, with male screw of sVinch bore, the nipple is designed 



to accommodate rubber tubing from J4 to ^2-inch inside diameter $0.90 



ACID PROOF CHEMICAL STONEWARE, including Acid Elevators 

 (Montejus) automatic and non-automatic Carboy Stoppers, Check Valves, 

 Chlorine Generators, Cocks of all kinds, Coils, Crystallizing Vessels, Dam- 

 pers, Decanting Pots, Dipping Baskets, Exhausters, Filters, Foot Valves, 

 Funnels, Injectors, Jars, Kettles, Laboratory Sinks, Lanterns, Mariotte Bot- 

 tles, Mortars, Nitrating Vessels, Percolators, Photographic Tanks, Pipes of 

 all kinds, Pots, Pumps Plunger and Centrifugal Pumps for gases, Receivers. 

 Retorts, Safety Valves, Stills, Stirrers, Storage Vessels, Subliming Dishes, 

 Suction Filters, Siphons, Tanks, Tourills, Towers, Vacuum Kettles, Valves. 

 Prices on application. 



