. Railway mechanical engineer . s a few degrees, the heat is turned on again. Sincethis action is automatic, workmen need not watch ther-mometers and an increase in production is the direct temperature gage dial always shows the heat attainedand, together with the jewel set in the base casting, acts asa visible check on the heat maintained. The glue pot operates from any electric lighting circuitand is put in operation by merely turning the switch. Thisglue pot functions either as a water bath, hot air, or dryheat pot and whichever way it is used, does not overheat,even if the curre
. Railway mechanical engineer . s a few degrees, the heat is turned on again. Sincethis action is automatic, workmen need not watch ther-mometers and an increase in production is the direct temperature gage dial always shows the heat attainedand, together with the jewel set in the base casting, acts asa visible check on the heat maintained. The glue pot operates from any electric lighting circuitand is put in operation by merely turning the switch. Thisglue pot functions either as a water bath, hot air, or dryheat pot and whichever way it is used, does not overheat,even if the current be left on indefinitely. The durable cast aluminum glue container is supportedby special lugs which prevent floating when the pot is only partly filled with glue. The escape of moisture is minimizedby this method. The base cover forms a dead air heat in-sulating chamber between the heating units and the bench,and the air gap which surrounds the heating unit providesfurther insulation between the heat units and the base cast-. Wallace Glue Pot Arranged for Automatic Controlof Temperature at Any Desired Point ing. The method of insulating electrical parts providesample fire protection. This glue pot is adapted for heatingany substance which requires a definite working temperature,such as glue, wax, pitch, tar, sealing compounds, or resin. Ball Bearing Sensitive Radial Drill » I HE object of a new high speed radial drill, developed tion minimizes the time between holes, while high speeds I by the Fosdick Machine Tool Company, CincinnatiOhio, is to drill and tap work of too large an area forthe high speed sensitive upright drill. The rapidity of posi-tioning the drill, together with ease and convenience of opera-
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
