272 



CENTBAL SCIENTIFIC CO., CHICAGO, U. S. A. 



No. 6466. 



No. 6160. 



GAGES, ALL KINDS 



GAGES, Altitude, see Barometers. 



6460. GAGE, Differential (Pitot Tube), as described by Prof. P. B. Wood-worth of Lewis Institute, 

 Chicago, at the 1915 Meeting of The C. A. S. & M. T. Outfit includes a brass Pitot tube of 

 correct shape and dimensions, and a glass manometer tube suitably mounted on a scale % 

 meter long graduated in both metric and English systems. With this tube accurate measure- 

 ments of the flow of gases and liquids may be made. It may also be used as a velocity indi- 

 cator on motor boats and in open streams of water, or in pipes conveying air, water or steam. 

 A set of curves is furnished with the apparatus by means of which pressure values may be 

 converted into velocities in units of feet per second or miles per hour for either air or water. 



, $12.00 



6464. GAGES, Draft, TJ-TUbe or siphon form, with metal fittings and removable brass bend and 

 union. Scale graduated in }{ inch divisions. 



Length, inches 4 6 8 12 18 24 



Each 2.70 3.30 3.60 4.20 4.80 8.40 



6466. GAGE, Draft, pocket U-fonn, armored for protection, with hose connecting piece and adjusting 



valve. With 6-inch scale graduated in i^ inch divisions 7.50 



GAGE, Drill, see No. 4276. 



6468. GAGES, Glass Tubing, of steel, for gaging glass or metal tubing by outside diameters, with 

 slots varying by % mm in width. 



No A B C D E F 



For tubing, mm 3 to 8 8 to 12 12 to 16 16 to 20 20 to 24 24 to 28 



Each 4.50 4.50 4.50 4.50 4.50 4.50 



GAGES, Heat, see Pyrometers. 



6472. GAGE, Marking, of boxwood, adjustable, steel point, brass thumb screw and shoe. Six-inch scale 

 by 16ths; 8*4 inches over all 60 



GAGES, PRESSURE 



6474. GAGE, Pressure, commercial type, improved single spring form, for air, steam or water pressure; 



iron case with nickel-plated trimming, 3%-inch dial, range to 30 pounds per square inch. 

 Provided with stopcock, and nipple for attaching hose 6.00 



6475. GAGE, Pressure. Same as No. 6474, but with range to 100 pounds 6.00 



6476. GAGE, Combination Pressure and Altitude, especially valuable for work in hydraulics, for indi- 



cating the height and pounds pressure per square inch of water in pipe or reservoir. Pro- 

 vided with stopcock, and nipple for attaching hose. 



To raise a column of mercury 2.04 inches or to raise a column of water 27.67 inches requires one 

 pound pressure. 



Iron case with nickel trimmings, 3V 2 -inch dial, to 30 Ibs. and to 70 ft 7.50 



