Emerson Electric Company

Daniel A Terpstra

Richard B Brundage

Keith R Schoene

Steven H Plume

James B Watson

William J Saunders

Robert E Steiner

Frank J Tomiser, Jr

David E Beth

J Douglas Alsup

Randall E Campbell

Kiyoshi Hoshino

Curtis J Eccardt

Jason E Hill

James I Metzger, Jr

Karmen D Cox

James D Schroeder

Frederick B Jedlicka

Paul J Eckhoff

Donald L Blachly

James J Metzger, Jr

Keith R Shoene

Compound miter saw

Leg set

Wood lathe

Miter gauge

A compound miter saw with an adjustable/bypassable bevel stop is disclosed. The compound miter saw includes a turntable rotatably mounted on a supporting frame. A power driven saw blade is pivotally mounted to the turntable and moves along a predetermined path from an upper raised to a lower operational position that includes a saw blade slot in the turntable. A bevel adjusting features selectively rotates the power driven saw blade relative to the turntable. The adjustable/bypassable bevel stop includes predetermined bevel stop settings at set angles, for example, such as 0.degree. and 45.degree., as well as an over-riding feature when angles either less than or greater than the predetermined bevel stop settings are desired. The over-riding feature does not require re-adjustment of the predetermined bevel stop settings.

Adjustable/bypassable bevel stop for compound miter saw

Motorized table saw

A switch lock-out device to prevent unintended operation of a power tool through inadvertent actuation of a trigger operably associated with a motor as disclosed. The trigger is pivotally mounted in handle grip for energizing the power tool when depressed. An outer free end of the trigger extends within the handle grip. The switch lock-out device includes an integral multiple-armed element that is pivotally mounted within the handle grip. The pivotally mounted multiple-armed element includes a first arm that engages the outer free end of the trigger to prevent actuation, a second arm that includes a manual engageable button that extends outside of the handle grip and a third arm that engages an internal wall of the handle grip in biased and resilient engagement. When the manually engageable button is depressed, a first arm of the multiple-armed element is pivoted out of engagement with the free end of the trigger for actuation of the trigger to operate the power tool. Subsequent release of the manually engageable button enables the third arm biased against an internal wall of a handle grip to return the second arm and its manually engageable button to its normal position for subsequent re-engagement with the free end of the trigger when released.

Switch lock-out device for power tool

A combination woodworking tool is disclosed. The combination woodworking tool includes a frame having a horizontal bed for supporting workpieces. A rigid column is supported by the frame in proximity to and extends vertically upwardly beyond the horizontal bed. A powerhead is mounted to an upper end of the column in overlying relationship to the horizontal bed, the powerhead being vertically adjustable for movement toward and away from the horizontal bed. The powerhead further includes a motor and spindle which extends below a lower end of the powerhead. The spindle is adapted to interchangeably receive a chuck for use with a drill or a collet for use with a router. The powerhead is adjustably and rotatably mounted relative to the column for positioning the spindle in predetermined vertical, angular or horizontal positions relative to the horizontal bed for vertical, angular or horizontal drilling or routing. In conjunction with the different relative positions of the powerhead, the horizontal bed is also adjustable to provide different woodworking operations. The powerhead is also adapted to be vertically adjusted in proximity to the horizontal bed while also be rotatably adjusted relative to the column for positioning the spindle in a horizontal and proximate position relative to the horizontal bed for cooperation with a separately mounted lathe tail stock and tool rest in operating the combination woodworking tool as a lathe.

Combination woodworking tool

A swinging blade guard assembly for a motor driven saw blade movable from an upper at rest to a lower operational position is disclosed. An upper blade guard is fixed to a pivotally mounted supporting arm that carries the motor driven saw blade and upper blade guard. A lower swinging blade guard is pivotally mounted to the upper blade guard for fully covering the blade in its at rest position and for exposing the saw blade when moved to its operational position. The swinging blade guard assembly includes an elongated link that is pivotally attached at one end to a frame support and includes a pre-configured slot at an opposite end which receives a slidable pin attached to the lower swinging blade guard adjacent its pivotal mounting to the upper blade guard. A bearing element is also attached to the upper blade guard in laterally spaced relationship to the pin for engaging an upper surface of the elongated link. Rotation of the saw blade from an upper at rest to a lower operational position causes the bearing to press against the side of the link while also causing edge surface areas surrounding the pre-configured slot in the link to press against the pin to rotate the swinging blade guard assembly for exposure of the saw blade.

Swinging blade guard assembly

A combined belt and disc sander is disclosed which provides a belt sander than can be pivoted from a horizontal to vertical position, a disc sander that is fixed below the upper horizontal plane of the belt sander, and a drive motor assembly than can drive both the belt sander and disc sander. A movable work table for supporting a workpiece is capable of being used with the belt sander or the disc sander, as may be desired. The angle of the work table relative to the belt sander or the disc sander can be adjusted so that the workpiece can be placed at the desired angle relative to the belt or disc sander. The sander further includes a sawdust collection mechanism that can be attached to a utility vacuum cleaner.

Combination belt and disc sander

A miter saw is constructed to move a workpiece supporting fence between rearward and forward longitudinal positions relative to a saw blade, as well as the automatic transverse movement of the workpiece supporting fence relative to the saw blade as a turntable is rotated to selected miter positions. The workpiece supporting fence includes a T-shaped slot in fence supportng sections thereof and a pair of downwardly directed pins fixed to the underside of the workpiece supporting fence. A fence lock extends through the longitudinal portion of the T-shaped slot, to enable the fence to be moved between its forward and rearward position. The fence lock engages the fence in a repeatable and controllable locking action. The downwardly directed pins are positioned within a pair of generally parallel openings in the turntable, there being one opening on each side of a saw blade slot. When the workpiece supporting fence is in its rearward position, one of the pins engages peripheral areas adjacent a curvilinear portion of its associated opening in order to move the fence from side-to-side as the turntable is rotated for selected miter cuts. When the workpiece supporting fence is in its forward position and the turntable is rotated, the opening moves relative to the pins, without engagement therewith. Thus, no relative transverse movement of the fence to the saw blade is required when the fence is in the forward position.

Miter saw apparatus with adjustable workpiece supporting fence

A quick action band saw blade tensioning device is disclosed. The band saw blade tensioning device is used in a band saw machine having at least upper and lower band saw supporting wheels operatively rotatably mounted to a supporting frame. The band saw blade tensioning device includes a wheel support pivotally mounted to the supporting frame about a wheel support pivotal mount, one of the upper and lower band saw supporting wheels being rotatably mounted to the wheel support about a wheel support rotatable mount, and an adjustable device for pivotally moving the wheel support and its rotatably mounted band saw about the wheel support pivotal mount so as to apply a greater or lesser tensioning force to the band saw as desired. The adjustable device includes an elongated wire spring which is attached to the pivoting wheel support to provide the desired tensioning force to the band saw blade. Tension is maintained by clamping the deflected spring into place.

Quick action band saw blade tensioning device

An angularly adjustable band saw is disclosed which provides the desired angular adjustment of an endless band saw blade relative to a workable surface for bevel and/or miter cutting of a workpiece. The worktable surface is part of a supporting worktable that includes a saw blade slot extending through the worktable surface. A frame support is fixed to the worktable below the worktable surface and a movable frame is operatively connected relative to the frame support. The movable frame includes an upper band saw supporting wheel above the worktable surface and a lower band saw supporting wheel below the worktable surface, with an endless band saw blade mounted for movement about the upper and lower band saw supporting wheels, including through the saw blade slot in the worktable surface. The movable frame, including its associated endless band saw blade, is adjustable relative to the frame support and the worktable to provide the desired angular adjustment of the endless band saw blade relative to the worktable surface for bevel and/or miter cutting of a workpiece.

Angularly adjustable band saw

A power saw includes a motor for driving a saw blade or the like around its rotational axis to cut a workpiece. The position of the rotational axis with respect to a reference position is sensed and a manually operated keyboard is provided for entering a desired change in the position of the rotational axis. Positioning motors are provided along with circuitry which is responsive to the entering of a desired change in the position of the rotational axis of the saw blade for moving the axis correspondingly.

Electronically controlled power saw

Growing community of inventors

Kirkwood, MO, United States of America

Daniel A Terpstra