. The railroad and engineering journal . gential wheel. Fig:- 3- capacity. 2. The wires of the armature are threaded throughthe iron disks, making a practically iron-clad armature ; itbeing impossible for any wires to work loose at any speed ofthe machine. Mr. Ryland then described the place where the dynamo wasplaced, being situated near the bottom of a deep ravine about300 ft. from the hotel. The water is turned on at 6 oclock inthe evening and turned off at t oclock, without any furtherattention, and yet lights in the different rooms can be turnedon or off without any perceptible change in
. The railroad and engineering journal . gential wheel. Fig:- 3- capacity. 2. The wires of the armature are threaded throughthe iron disks, making a practically iron-clad armature ; itbeing impossible for any wires to work loose at any speed ofthe machine. Mr. Ryland then described the place where the dynamo wasplaced, being situated near the bottom of a deep ravine about300 ft. from the hotel. The water is turned on at 6 oclock inthe evening and turned off at t oclock, without any furtherattention, and yet lights in the different rooms can be turnedon or off without any perceptible change in the brightness of theremaining tights. A Portable Railroad Drill. The illustrations given herewith show a portable drill intend-ed for drilling rails and similar purposes. As will be seen fromthe engraving, it can also be readily adapted to the use of bridgebuilders and structural iron workers. By removing the machinefrom the base and bolting it to the bench it can be used as abench drill in the shop. In building cable roads or electric. PORTABLE RAILROAD DRILL. roads it is a very useful tool. The makers claim that it will dothe work of a ratchet drill in much less time, white it can bemore readily applied to the work. The special chuck holdingthe rail can readily be removed and an ordinary chuck put onin its place. The machine is provided with an emery wheel for grindingup the drills used—a very useful feature where it has to be used
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1887
