Platen

(noun.) the roller on a typewriter against which the keys strike.

(noun.) the flat plate of a printing press that presses the paper against the type.

(noun.) work table of a machine tool.

校對:瑪拉

• The cylinder stops, and current operates the sluggish press-magnet, causing its armature to be attracted, thus lifting the platen and its projecting arm. 弗蘭克·劉易斯·戴爾. 愛迪生的生平和發明.
• The screw was turned down, the platen was pressed against the sheet of paper, and the printing was done. 魯伯特·薩金特·荷蘭. 歷史性發明.
• It has ball-bearing type bar joints, giving accurate alignment and light key action, the platen rolls to show the work, and the carriage locks at the end of the line, protecting the writing. Edward W. Byrn. 十九世紀發明進展.
• I was experimenting, he says, on an automatic method of recording telegraph messages on a disk of paper laid on a revolving platen, exactly the same as the disk talking-machine of to-day. 弗蘭克·劉易斯·戴爾. 愛迪生的生平和發明.
• From the diagram it will be seen that the armature of the latter has a long, pivoted extension arm, or platen, trough-like in shape, in which the paper tape runs. 弗蘭克·劉易斯·戴爾. 愛迪生的生平和發明.
• The printing paper was laid over the type, and the screw forced the platen, which was the board fixed to it, down upon the paper. 魯伯特·薩金特·荷蘭. 歷史性發明.
• The frame or chase of type was fixed on this table, and when inked and with the paper laid in place, was slid under the platen, which was a smooth planed board. 魯伯特·薩金特·荷蘭. 歷史性發明.
• In the earliest printing presses the form was locked up in a tray, and placed upon a platform, and the platen was then brought down upon it by turning a screw in a cross bar above. Edward W. Byrn. 十九世紀發明進展.
• Then the screw was raised by the handle, the platen was lifted with it, and the printed paper was ready to be taken out. 魯伯特·薩金特·荷蘭. 歷史性發明.
• In this press (see Fig. 123) the platen is forced downwardly by a compound lever applied to a toggle joint and is raised by springs on each side. Edward W. Byrn. 十九世紀發明進展.
• The idea of replacing the platen by a cylinder was not a new one. 佚名. 神奇的知識之書.
• He watched the master dab the type with ink, slide them under the platen, and having pressed it down, take out the printed page. 魯伯特·薩金特·荷蘭. 歷史性發明.
• The platen had a spiral groove on its surface, like the disk. 弗蘭克·劉易斯·戴爾. 愛迪生的生平和發明.
• The flat bed on which the types rested was held up by other cross timbers, while through another passed a wooden screw, by the aid of which the wooden platen was forced down upon the types. 佚名. 神奇的知識之書.

編輯:羅德里克