Improvements in or connected with Rock Drills and the like.
Номер патента: GB189721080A
Опубликовано: 16-10-1897
Автор(ы): James Grieve Lorrain
Принадлежит: Individual
Опубликовано: 16-10-1897
Автор(ы): James Grieve Lorrain
Принадлежит: Individual
Реферат: 21,080. Lorrain, J. G., [Sergeant, H. C.]. Sept. 14. Rock drills.-Relates to the feed for rock and channelling drills. Power is applied to the feedscrew to withdraw the drill rapidly for changing tools. For this purpose a suitable motor E is mounted on a bracket on the cradle &c., and is geared by wheels k, l, o to the worm d which drives the worm-wheel c on the feed-screw C. The spindle of the worm d is prolonged so as to carry a hand crank, and the idle wheel l is arranged to be thrown in and out of gear.
Improvements in or relating to electric systems for measuring variable quantities such as pressures or the like
Номер патента: GB460165A. Автор: . Владелец: Svenska Ackumulator Jungner AB. Дата публикации: 1937-01-22.