Abstract: A tool for applying a circular indicia onto a surface, such as a ceiling, wall or other flat surface, with a marking implement has a base that includes a first side with a center punch projecting away therefrom. At least one marker holder is fixed with a second side of the base and configured to hold the marking implement therein, such that a marking point of the marking implement projects through a marking aperture traversing the base. A handle is selectively removable from the base and is adapted for selective engagement with the center punch to assume a collapsed configuration.

Abstract: The invention relates to an electric hand tool (6) with an electric motor contained in a housing, which drives a chip-removing tool (8). The mounting section (14) of a mounting rail (1) is mounted in a detent locking fashion onto the mounting base (3) of the electric hand tool (6). A carriage-shaped component equipped with a compass point (12) is mounted onto this mounting rail (1) and/or a parallel fence (9, 10) can be adjustably positioned on it.

Abstract: An apparatus and method for routing radii and for producing full-scale layouts is disclosed. The apparatus consists of a guide of smaller radius than the work, a carriage adapted to trace the guide, and a trammel adjustably extending from the carriage. The trammel is adapted to mount a tool for performing the work at the desired radius. The trammel extension corresponds to the difference between the radius of the work and the radius of the guide. The apparatus thus provides a simple method for working with large radius work pieces within confined spaces. Further, the device is usable by one worker and produces accurate results. Finally, the device is inexpensive to produce and may be adjusted to work with virtually any size radius.

Abstract: A jig apparatus that allows one to cut arches in a work piece quickly and efficiently. It is comprised of a bar that has sliding adjustable clamps that secure a cable which go around pulleys on a router or other cutting device that when the cable is pulled taut, creates a path for the router or other cutting device to follow while it cuts thus cutting an arch into the work piece. Prior to this apparatus one would have to cut this arch with a template which had been previously tooled. This jig apparatus creates a template and cut all in one step.