. Railway mechanical engineer . -pes of machines are not well adapted. Cutting the threadunder the head of the stay requires considerable time withthe ordinary- arrangement. To overcome this difficulty theColumbus, Ohio, shops of the Pennsylvania Lines haveconstructed a special machine for finishing crown device, which was converted from an early make ofJones & Lamson flat turret lathe, is shown in Fig. 1. Theprincipal features of the device are the tool for formingthe head and the bo.\ tool for turning the end of the stays,which are mounted on a slide on the turret carriage, and as
. Railway mechanical engineer . -pes of machines are not well adapted. Cutting the threadunder the head of the stay requires considerable time withthe ordinary- arrangement. To overcome this difficulty theColumbus, Ohio, shops of the Pennsylvania Lines haveconstructed a special machine for finishing crown device, which was converted from an early make ofJones & Lamson flat turret lathe, is shown in Fig. 1. Theprincipal features of the device are the tool for formingthe head and the bo.\ tool for turning the end of the stays,which are mounted on a slide on the turret carriage, and asplit .self-opening die mounted on a swinging arm. The forming tryjl which finishes the space under the head,is carried in a holder which has an eccentric to bring it intothe cutting position, or to hold it away from the work. The. ^i^^itoJ -^
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
