Editing Shift lock (section)

===Mechanical shift lock===
A mechanical shift lock is a mechanism that allows the shift lock function to be released by pressing the shift key. Mechanical linkages connect the shift keys on either side of the keyboard into the shift lock key; pressing either shift key will mechanically release the shift key. Although this is seldom confirmed, the implication is that the shift lock key itself must be [[alternate action]].

Originally a mechanical typewriter function, this functionality was included in several keyboard switch types. This functionality is typically found in electric typewriters, but the [[Xerox X998]] computer keyboard also features a mechanical shift lock.<ref name="X998" />

In most cases, no catalogues have been found for the switch types in question, so we do not know if these were ad-hoc products or off-the-shelf designs. However, the mechanical shift lock feature of [[Cherry gold crosspoint]] is included in [[Cherry catalogues]] as a standard option.