A work shoe, in particular a safety shoe, includes at least one passive protection unit which is intended to passively protect a shoe wearer at least against mechanical and/or electrical loads, and includes at least one active protection unit which has at least one sensor unit which is intended to detect at least one characteristic variable at least in order to enable a protection function and/or a comfort function. The sensor unit is configured at least for detecting at least one person-related characteristic variable and/or at least one environmental characteristic variable.

There is provided an indicator for a torque limiter, comprising one or more resilient members configured to move from an initial, compressed state during normal operation of the torque limiter, to a subsequent, expanded state upon tripping of the torque limiter, to provide a visual indication that the torque limiter has tripped.

There is provided an indicator for a torque limiter, comprising one or more resilient members configured to move from an initial, compressed state during normal operation of the torque limiter, to a subsequent, expanded state upon tripping of the torque limiter, to provide a visual indication that the torque limiter has tripped.

A variable sign display system for displaying one of two selectable messages. The variable sign display may include a housing and a sliding board contained within the housing. The sliding board includes two messages. In use, one of the messages is displayed by laterally sliding the sliding board while the other message is concealed via a front of the housing. The variable sign display is useful for hotel doors or other applications requiring convenient selection of a message to be visibly displayed.

A variable sign display system for displaying one of two selectable messages. The variable sign display may include a housing and a sliding board contained within the housing. The sliding board includes two messages. In use, one of the messages is displayed by laterally sliding the sliding board while the other message is concealed via a front of the housing. The variable sign display is useful for hotel doors or other applications requiring convenient selection of a message to be visibly displayed.

A clamp assembly is provided. The clamp assembly is configured to be able to clamp to a buried or buryable element. A marker extends away from the clamp to allow visual indication that there is a buried element below the burying material.

A clamp assembly is provided. The clamp assembly is configured to be able to clamp to a buried or buryable element. A marker extends away from the clamp to allow visual indication that there is a buried element below the burying material.

A remote optical control surface indication system comprising mechanisms configured to engage heads of respective fasteners that attach an alignment indexing plate to a vehicular structure having a control surface coupled thereto. The system further comprises: a camera having a field of view that encompasses a portion of an end face of the control surface when the mechanisms are engaged with the fasteners and when the control surface is in a neutral position; a source of light that is activatable to project light that illuminates the end face of the control surface; a display screen comprising an array of pixels; and a computing system configured to process image data captured by the camera to determine a current position of a centerline of the end face of the control surface relative to a baseline position and control the display screen to display symbology indicating the current position relative to the baseline position.

An electrical power distribution system includes an electrical connector, an electrical conductor and a temperature monitoring system. The electrical conductor is secured to the electrical connector to form an electrical connection. The temperature monitoring system includes a temperature monitoring device. The temperature monitoring device includes a temperature sensor coupled to the connector to detect a temperature of the connection.

An electrical power distribution system includes an electrical connector, an electrical conductor and a temperature monitoring system. The electrical conductor is secured to the electrical connector to form an electrical connection. The temperature monitoring system includes a temperature monitoring device. The temperature monitoring device includes a temperature sensor coupled to the connector to detect a temperature of the connection.