US 5,525,095 AGranted

Bench grinder

AssigneeHand Tools International, Inc.

InventorKarl T. Baughman

Life of this patent

Estimating the term…

Loading patent…

Abstract

There is described a bench grinder in which the operation of particular functional elements has been enhanced. Among significant improvements are shield-mounted lamps by means of which lighting in the work zones of the grinder is improved. Glare has been markedly reduced through directive light-shielding shades strategically located, through end lighting of the shields, and through light frequency selection. The lighting bulbs are energized by a 12-volt supply derived from pick-up leads connected to the windings of the 110-volt motor which drives the grinder wheels. The tool rest has been extended forwardly at the outer sides of the abrasive wheels to provide support laterally of the grinding wheels in addition to in-line support. A grinder-carried wheel dressing tool of a uniquely efficacious configuration facilitating its use is conveniently affixed on the grinder chassis, as is a wrench used in making selectable operational adjustments on the grinder to ensure optimum and safe operation.

Claims11

Dependent claims

In a bench grinder including base means of said grinder for supporting said grinder on a substrate,

an electric motor of said grinder supported on said base means,
motor driven shaft means having shaft end portions extending laterally from said motor at either side thereof for rotatably supporting motor-driven tool elements used in grinding operations conducted with said bench grinder,
a pair of drivable tool elements mounted on said shaft end portions, one at either side of said motor,
a pair of transparent shield means of plastics composition for protecting an operator of said bench grinder, and fastener means for mounting said shield means on said grinder to overlie at least a section of each tool element presented to an operator using said grinder,
lighting means for illuminating said grinder during use thereof,
tool rest means for aid in supporting and steadying a tool during a grinding operation, and
switch means for controlling delivery of electrical power to energize said motor and to illuminate said lighting means during operation of said grinder,
the improvement wherein said lighting means comprise a pair of illuminating lamps, and fastener means for attaching each one of said pair of lamps respectively to each shield of said pair of shield means,
attachment means for supporting said lighting means on said shield means, laterally thereof for movement therewith,
shade means overlying each of said lighting means and interposed between said lighting means and an operator for reflectively directing illumination toward a work zone adjacent said grinder wheels and for reducing objectionable, disruptive glare, and
said lighting means being mounted at laterally inwardly extending edges of said shield means, and said shield means being cut away to provide a recess in which said lighting means are nestingly received.

8 more elements

Dependencies are inferred from the claim text.