. American engineer . g the parallel position of the guide faces. The guides haveno tendency to shift or spring, and there is, therefore, freedomfrom binding of the nuts when feeding. Openings are provided in the nut pans through which theoperator can empty the taps in boxes or kegs set beneath thetapper. This machine will handle either rough hot pressed,or cold iiunched nuts. NEW DESIGN OF JOURNAL JACK -\ 15-t(in. ball bearing jack, especially designed for use inconnection with the inspecti(m, removal, or replacement ofjournal brasses in freight and passenger cars, or for any serv-ice w-here
. American engineer . g the parallel position of the guide faces. The guides haveno tendency to shift or spring, and there is, therefore, freedomfrom binding of the nuts when feeding. Openings are provided in the nut pans through which theoperator can empty the taps in boxes or kegs set beneath thetapper. This machine will handle either rough hot pressed,or cold iiunched nuts. NEW DESIGN OF JOURNAL JACK -\ 15-t(in. ball bearing jack, especially designed for use inconnection with the inspecti(m, removal, or replacement ofjournal brasses in freight and passenger cars, or for any serv-ice w-here a short, light, powerful jack is required, has beenperfected by the Duff Manufacturing Company, Pittsburgh, Pa. These jacks are said to be very easy operating, because ofthe large ball bearings which carry the load, and the fact thatall parts are machine finished. The steel gears have machinecut teeth and are heat treated. They are self-lubricating, theinterinrs beini; with semi-fluid grease in which all mov-. New Ball Bearing Journal Jack in Operation. ing parts revolve. .\ new positive stop is used, which preventsthe lifting bar from running too far out of the jack, and acci-dents from this cause are impossible. The load is raised onthe downward movement of the lever. An adjustable wheel-holding device holds the wheel firmlyon the track while the journal box is being raised, and doesaway with the necessity of wedging down the wheel, or ofusing a plate or strap, can be furnished if desired. These jacks are light for their capacities, weighing only 28lbs. without the wheel-holding device, and 33 lbs. with it. 45 46 AMERICAN ENGINEER. Vol. 87, No. 1. LOCOMOTIVE LINK MILLING MACHINE REVERSING MOTOR DRIVE FOR PLANERS The Newton Machine Tool Works, Philadelphia, Pa., has re-cently arranged its standard No. 2 vertical milling machine to makeit suitable for milling the valve gear links of locomotives, or otherwork on arcs of similar radii. This type of milling machine hasbee
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