re leaving the manufactory. The end of the bearing has a thread upon which the rigid sec- The patent automatic battery, manufactured by the same nient seat for the operator, and the lever guiding the move- tion of the sleeve is screwed. This combination prevents any company and specially adapted to… … that when the foot pressure is removed the plates are auto- Fig. 3.-THE ELECTRIC FAN. matically raised clear of the liquid and all expenditure in- Fig 8.-THE ELECTRIC DEN TAL MOTOR. stantly ceases. The same motor, supplied with a minute bichromate of potash variety, and is inclosed in a neat case.…
Internet Archive · Public domain (published before 1931). Free to use for anything.
