和訳お願いします。
In operating the electric pen,I got my current from a Bunsen battery consisting of two glass jars, capped at the top and controlled by a plunger with which I lowered the plates into the acid solution or drew them up when the pen was not in use.Thus the life of the battery was prolonged.
The pen had a needlelike point which darted in and out of the writing end so rapidly that the eye could hardly detect it. This was operated by a miniature clectric motor small enough to be attached to the upper end of the pen.The shaft containing the needle was given its motion by cams on the rotating engine shaft so that when the current was turned on,and I wrote with the pen,holding it in a vertical position, it made innumerable tiny punctures on the sheet of paper,tracing the words that comprised the letter.
After the master copy of the stencil had thus been made, I took it to the 'press',where it had to be spanned in a frame before the copies could be made.A plain sheet of paper was placed on the press,the stencil was laid on top and an ink roller passed over it. The impression of the handwriting was marked on the under sheet by the ink through the holes made by the needle.It was said that 5,000 copies could be made from a single stencil.
