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| glossary:glossary_t [2019/03/12 15:26] – [TOU] Bob Vetterlein | glossary:glossary_t [2019/08/16 19:14] – [Toggle] Bob Vetterlein |
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| A 'Toggle' is a combination of an operating lever and spring loading which causes the lever to be 'locked' at one or other extreme position. It is extensively used in mechanical assemblies, in which the extremes may be 'locked' by the 'toggle spring'. Another example is the 'Mole' self locking wrench in which the toggle action also gives strong mechanical advantage. \\ The Electronic version is also a device that can be 'latched in one position or another, indeed sometimes called a 'latch'. | A 'Toggle' is a combination of an operating lever and spring loading which causes the lever to be 'locked' at one or other extreme position. It is extensively used in mechanical assemblies, in which the extremes may be 'locked' by the 'toggle spring'. Another example is the 'Mole' self locking wrench in which the toggle action also gives strong mechanical advantage. \\ The Electronic version is also a device that can be 'latched in one position or another, indeed sometimes called a 'latch'. |
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| | ===== TORR ===== |
| | **T**rain **O**perated **R**oute **R**elease.\\ |
| | A feature of prototype interlockings when routes are cancelled by passage of the train without need for the Signaller to take any action. Prior to the introduction of TORR the Signaller had to pull the entrance button or the equivalent action on the VDU panel. |
| ===== Tortoise motor ===== | ===== Tortoise motor ===== |
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