. Railway mechanical engineer . ce a strip of rul)ber surrounded byfelt, which, when the window is closed, provides a seal at thesill. The greatest point of wear comes in the side weather-stripping, but the clearance between the jamb-piece and thechannel is such that excessive wear of the cloth will not bepossible. This weather-stripping is made and sold by the .AtheyCompany, 1907 Michigan Boulevard, Chicago. 111. May, 1915 \^■ Acii (;.\/.I:ttic, mechaxicai. i-:i)riio.\ TIME STUDY WATCH A watch (lisigiu-il especially for making lime studies andfor determining the output of machines is s
. Railway mechanical engineer . ce a strip of rul)ber surrounded byfelt, which, when the window is closed, provides a seal at thesill. The greatest point of wear comes in the side weather-stripping, but the clearance between the jamb-piece and thechannel is such that excessive wear of the cloth will not bepossible. This weather-stripping is made and sold by the .AtheyCompany, 1907 Michigan Boulevard, Chicago. 111. May, 1915 \^■ Acii (;.\/.I:ttic, mechaxicai. i-:i)riio.\ TIME STUDY WATCH A watch (lisigiu-il especially for making lime studies andfor determining the output of machines is sIkjwh in the ac-companying illustration. The dial of the watch is dividedinto tenths and hundredths of a minute, which are the unitsused in taking time studies of machine tool operations, it isalso provided with figures showing the hourly production foreach two-hiindrcdths of a minute. For example, as shownin the illustration, if an operation is performed in of aminute, it is being |)erformed at the rate of 37S per Stop Watch for Time Study Work The watch is also designed to start and stop without thehand .going back to zero. This is of special advantage when it isfound necessary to take time out during any individual opera-tion. The small dial in the center of the watch registers theminutes. The watch is started by pushing the slide on theside towards the stem and it is stopped by pushing this slidein the reverse direction. The hands are brought back tozero by pressing on the crown. This watch is sold byMortimer J. Silberberg, Peoples Gas building, Chicago. 111.,who has the exclusive sales rights. INTERNAL GUIDE FOR PIPE THREAD-ING TOOLS An internal guide with a reamer point for use in pipe thread-ing tools has recently been placed on the market by the Green-field Tap & Die Corporation, Greenlield. The internal
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
