Patent ID: 8915172
Filing Date: 2014-12-23
Classification: B27B,Y10T

Abstract:
1. An apparatus, comprising: a “T-square” table saw fence having an elongated main body with a proximal end and a distal end and adapted to be secured to a table saw top parallel to a saw blade thereon, the fence having a cam-actuated clamp with a handle on the proximal end for securing the proximal end of the fence to the table saw top, the fence also comprising an ON/OFF switchable magnet actuated by rotation of one magnet with respect to another and mounted within the main body near the distal end, wherein when switched ON the switchable magnet secures the distal end of the fence to the table saw top, the fence further including a mechanism inside the main body configured to switch the switchable magnet ON simultaneous with movement of the handle when actuating the cam-actuated clamp, the mechanism further configured to switch the switchable magnet OFF upon reverse movement of the handle when de-actuating the cam-actuated clamp and releasing the proximal end of the fence from the table saw top; and wherein the mechanism comprises a spur gear connected to rotate with a core of the switchable magnet and two linear rack gears with teeth in meshing engagement with opposite sides of and for rotating the spur gear, wherein movement of the handle linearly displaces the rack gears in opposite directions via a linkage.