Abstract: A brake is provided which is completely separate from the ground wheels of the skateboard. A ground engaging brake wheel is swingably supported relative to the skateboard so that it may be swung into rolling engagement with the ground and with the braking surface. The brake may be cantilevered from the rear end of the skateboard or may be positioned centrally of the skateboard between the two pairs of ground wheels.

Abstract: An edge finder adapted to be secured to the chuck of a tool such as a drill press, vertical mill, jig bore and the like, to permit the user to align the center line of the rotating tool with an edge of a work piece. A housing is provided which is adapted to be secured within the chuck or like securing means on the rotatable spindle of the tool. A slide is provided in sliding abutment with an end of the housing and is yieldably held against the end of the housing by means of a spring thereby permitting lateral movement of the slide relative to the housing end. A finger adapted to engage an edge of the work piece is rotatably supported at one end in the slide and is shaped at its other end so as to permit the user to obtain an accurate alignment of the center line of the tool and the edge of the work piece.