. American engineer . office. It is not unusual to establish communi- pair of joints that fit together are painted the same colorso tliat the pole may be quickly put togctlicr. The parts arestored in a special .As the bamboo is hollow a wooden plugseveral inches long is fitted into the end of the sections so as toform a good hold for the bushing which is fitted on over theoutside of the pole and i»«4ield by a screw. A % in. pin is placedon the inside of the bushing / and engages with the slot in theend of bushing // as the joints come together. When the bush-ing is pushed in all th
. American engineer . office. It is not unusual to establish communi- pair of joints that fit together are painted the same colorso tliat the pole may be quickly put togctlicr. The parts arestored in a special .As the bamboo is hollow a wooden plugseveral inches long is fitted into the end of the sections so as toform a good hold for the bushing which is fitted on over theoutside of the pole and i»«4ield by a screw. A % in. pin is placedon the inside of the bushing / and engages with the slot in theend of bushing // as the joints come together. When the bush-ing is pushed in all the way, it is given a little turn and the pinslides into the riglit angle part of the slot. At the same timethe spring pin M in bushing // drops into the hole A^ in bushing /locking the parts together. The disjointing is accomplished bypressing down on the spring pin and turning the section enoughto allow the pni to pass out of the slot. The telephone box that goes with this outfit is shown in Fig. 6. ss--— —ss-. I ^
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
