Scully blue book: catalogue of iron, steel, machinery, heavy hardware, tools and supplies, with valuable and accurate reference tables (1910)
Scully Steel & Iron Co. · Scully Steel & Iron Co. · leaf 216
has an angle of one hundred and thirty-five degrees, thus allowing two pistons to pull together whenposition of levers requires the greatestpower. This makes the drill, in a degree,self-regulative, and tends to still furthergovern the speed of the entire revolutionof drill spindle. This drill is… … SCULLY STEEL & IROX CO. McGRATH PNEUMATIC FLUE WELDER. A Successful Tool forWelding, Scarfing and Swedging Boiler Flues. Made either single or double cylinder, to operate with air at 80 to 100 pounds . pressure. The hammersstrike about 2,000blows per minute.The amount of airused is very…
