Abstract: A retractable oven rack includes a slidable wire base with four wire sections extending generally horizontally around a periphery. Two of the wire sections extend parallel to each other along the width of the wire base and the other two extend parallel along the length. The four wires sections are connected to each other at their ends. A pair of support rods extend from and respectively parallel two of the wire sections along the length of the slidable wire base. The oven rack also includes a grid shelf having a pair of raised wire sections extending the length of the grid shelf that are slidably supported on the pair of support rods for allowing the grid shelf to be supported and slide on the pair of support rods.

Abstract: A simple, highly reliable automatic motor driven oven door latch for an oven self-cleaning operation. To ensure that the motor has operated correctly and has not stopped in a null position, the motor is provided with a start pulse and the location of the latch or locking member of the latching mechanism is monitored to guarantee that the locking member has moved to the correct position. If the locking member has not moved to the correct position, then the motor is provided with another start pulse and the location of the latch or locking member of the latching mechanism again is monitored to again ensure that the locking member has moved to the correct position. This sequence can be repeated on opening and closing of the latching mechanism a desired number of times to guarantee that the locking member has moved to the correct position when locking or releasing the oven door.

Abstract: A gas burner and grate combination includes a gas burner constructed for being operated at least at a high intensity level and at a low intensity level. A grate is located relative to the gas burner for supporting a cooking utensil thereon. A diffusion burner plate is located above the gas burner spaced from a cooking utensil when a cooking utensil is positioned on the grate. The diffusion burner plate is of a size such that when the gas burner is operated at a high intensity level the flame length is long enough to reach beyond the edges of the diffusion burner plate, and when the gas burner is operated at a low intensity level, the flame is contained under the diffusion burner plate such that heating of the cooking utensil occurs by radiation. In a further aspect, a cooktop includes the described gas burner and grate combination.

Abstract: A simple, highly reliable automatic motor driven oven door latch for an oven self-cleaning operation. To ensure that the motor has operated correctly and has not stopped in a null position, the motor is provided with a start pulse and the location of the latch or locking member of the latching mechanism is monitored to guarantee that the locking member has moved to the correct position. If the locking member has not moved to the correct position, then the motor is provided with another start pulse and the location of the latch or locking member of the latching mechanism again is monitored to again ensure that the locking member has moved to the correct position. This sequence can be repeated on opening and closing of the latching mechanism a desired number of times to guarantee that the locking member has moved to the correct position when locking or releasing the oven door.

Abstract: A retractable oven rack is made up of two separate parts, a first part being a slidable wire base, which is rectangularly shaped and has four wire sections extending generally horizontally around the periphery thereof. Two of the wire sections extend parallel to each other along the width of the wire base and the other two extend parallel along the length. The four wires sections are connected to each other at the ends thereof. A pair of support rods are located from and extending respectively parallel to two of the wire sections along the length of the slidable wire base. The second part is a grid shelf having a pair of raised wire sections extending the length of the grid shelf located at a position for being slidably supported on the pair of support rods for allowing the grid shelf to be supported and slide on the pair of support rods.

Abstract: A plunge base router for use in an upright and an inverted position is disclosed. The router includes a depth adjustment mechanism, a depth stop mechanism, a post lock mechanism, and a return spring defeat mechanism. The depth adjustment mechanism includes a course adjustment mechanism and a fine adjustment mechanism to set the cutting distance of a bit. The course and fine adjustment mechanisms are usable in both the upright and inverted positions and the fine adjustment mechanism is operable without being reset throughout the full range of motion of the plunge router. The depth stop includes a mechanism for locking the end of a rod on the housing to the base in order to set the relative position in between the housing and the base. The depth stop also includes a plurality of steps for engaging the rod and permitting incremental passes of cutting at different depths with the router.

Abstract: A plunge base router for use in an upright and an inverted position is disclosed. The router includes a depth adjustment mechanism, a depth stop mechanism, a post lock mechanism, and a return spring defeat mechanism. The depth adjustment mechanism includes a course adjustment mechanism and a fine adjustment mechanism to set the cutting distance of a bit. The course and fine adjustment mechanisms are usable in both the upright and inverted positions and the fine adjustment mechanism is operable without being reset throughout the full range of motion of the plunge router. The depth stop includes a mechanism for locking the end of a rod on the housing to the base in order to set the relative position in between the housing and the base. The depth stop also includes a plurality of steps for engaging the rod and permitting incremental passes of cutting at different depths with the router.

Abstract: A plunge base router for use in an upright and an inverted position is disclosed. The router includes a depth adjustment mechanism, a depth stop mechanism, a post lock mechanism, and a return spring defeat mechanism. The depth adjustment mechanism includes a coarse adjustment mechanism and a fine adjustment mechanism to set the cutting distance of a bit. The course and fine adjustment mechanisms are usable in both the upright and inverted positions and the fine adjustment mechanism is operable without being reset throughout the full range of motion of the plunge router. The depth stop includes a mechanism for locking the end of a rod on the housing to the base in order to set the relative position in between the housing and the base. The depth stop also includes a plurality of steps for engaging the rod and permitting incremental passes of cutting at different depths with the router.

Abstract: The drive mechanism for imparting reciprocating movement to the tool plunger includes first and second drive members. The first drive member is mounted on an eccentric formation which is in turn mounted on a drive shaft thereby to impart a wobbling movement to the first drive member. The second drive member is in the form of a piston mounted for reciprocating movement within a bore formed in the first drive member. The second drive member is pivotally connected to the plunger. The second drive member has a helical groove in its exterior surface. A lubricant is forced along the groove in part due to the reciprocating movement of the second drive member in the bore of the first drive member.

Abstract: The reciprocating plunger of a power tool has a planar surface for substantial co-extensive engagement with one side of the mounting portion of plural ones of blades of varying thicknesses. A housing mounted to the plunger includes a cavity and rotatably supports a cam block in the cavity. The cam block has an arcuate cam face establishing respective plural axial lines of contact with the other side of the mounting portion of ones of the blades of varying thicknesses. Each of the lines of contact occupies an over-center relationship with respect to a plane perpendicular to the blade and containing the axis of rotation of the cam block.

Abstract: The electrically powered machine, especially a hand-held power tool, comprises a housing, a cord to supply electrical energy, a switch changable between an "on" and an "off" position, a switch handle for operating the switch to control delivery of the electrical energy and a socket mechanism, which comprises a socket attached to a cord and a plug attached rigidly with the housing. A stop pawl is which prevents the connection of the socket to the plug in the machine, when and as long as the on-off switch is in the "on" position, thus preventing an unintentional start-up.