Abstract: Disclosed example robotic welding systems include: a robotic manipulator configured to manipulate a welding torch; and a robot control system, comprising: a processor; and a machine readable storage medium comprising machine readable instructions which, when executed by the processor, cause the processor to, during a robotic welding procedure involving the robotic manipulator: prior to initiating an arc as part of the robotic welding procedure, identify an arc warning event; in response to the arc warning event, output at least one of a visual notification or an audible notification proximate to the robotic manipulator; and control the robotic manipulator to perform the robotic welding procedure involving initiating the arc using the welding torch.

Abstract: A convertible book holder for holding and positioning books and documents. The book holder includes a freestanding document display and support portion with an integral resilient clip and independent paper engagement clip. An adaptive enlarged L-shaped document support is removably secured over the freestanding support portion to enhance the holding capabilities for larger and oversize text of instructional type books.

Abstract: A convertible book holder for holding and positioning books and documents. The book holder includes a document support surface with a removable support and engagement clip interengaged with a portion of said document support surface.

Abstract: A book holder for holding and positioning books and documents. The book holder includes a document support and display surface with oppositely disposed (page) engagement clips extending from the support surface. An adjustable line guide is removably positioned on the support surface for selective vertical transgression thereover. An extensible document engagement clip extends from the top of the display surface.