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5895311 |
Abrasive device that maintains normal line of contact with curved abrasive surface and method of using same
An abrasive apparatus adopted to abrade a curved surface of workpiece includes: an abrading head including an abrading tip having a substantially spherical outer surface and a rotating shaft...
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5429544 |
Polishing apparatus for notch portion of wafer
An polishing apparatus which can effectively polish a bottom wall of a wafer in a notch portion is disclosed. The apparatus includes: a table for supporting the wafer thereon; a rotary buff having...
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5287657 |
Skate sharpening machine and method
A machine for sharpening skates that can be operated by an individual through a coin-operated or credit card operated input, permits a person that wants skates sharpened to place the skate into the...
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5218786 |
Apparatus for grinding ferrules for ribbon type optical fibers
A method of grinding ferrules for ribbon type optical fibers wherein the method comprises the steps of locating the end surfaces of the ferrules with respect to a grinding surface of a grinding...
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4928432 |
Rods precision cutting-off and end surface grinding machine
A rods precision cutting-off and end surface grinding machine consisting chiefly of a set each of drive device, cut-off device, end surface grinding device and rods chucking device, which is...
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4848036 |
Grinding machine for drill bits
A grinding machine for grinding a tip of a drill bit including a grindstone rotatably provided on a base; a drill bit holder provided on one side of the grindstone, the drill bit holder being...
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4766698 |
Apparatus for finishing the face of the head of a golf club wood
An apparatus for finishing the face of the head of a golf club wood is constructed to form a preset bulge and roll face curvatures on the head face simultaneously. The head of a golf club wood is...
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4655005 |
Apparatus and process for dry cutting of plastic optical lenses
A process and apparatus for dry lens generation of a plastic optical lens includes a chamber structure in which the lens grinding tool and the lens blank holder are positioned. The chamber is...
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4633617 |
Apparatus for grinding a transverse element for a driving belt
A driving belt of the type comprising an endless carrier supporting a plurality of transverse elements is disclosed. The element includes at least one recess for receiving the carrier and is...
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4619079 |
Grinding machine for ball end mills with helical cutter teeth
A grinding machine for grinding a ball end mill which has a cutter teeth of a plain or frustconical shape in the circumference thereof and a cutter teeth of spherical shape in the tip end thereof....
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4608643 |
Automatic tool grinding machine with computerized control
The disclosed machine comprises holding means for holding a drill or other similar tool to be ground, first and second drive means for producing translatory movement of the holding means along...
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4607460 |
Grinding machine with a reciprocable column for work supporting devices
A numerically controlled profile grinding machine has a bed for a first carriage which supports an upright column and is reciprocable along a first horizontal path. The column supports a second...
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4558541 |
Ice skate sharpening method
A machine for sharpening the blade of an ice skate has a vertically mounted, thin grinding wheel with a convex transverse cross-section corresponding to the concave transverse cross-section desired...
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4534134 |
Ice skate sharpening machine
A machine for sharpening the blade of an ice skate has a vertically mounted, thin grinding wheel with a convex transverse cross-section corresponding to the concave transverse cross-section desired...
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4513540 |
Grinding machine with CNC pivotable workhead
A grinding machine is provided with a workhead support means having pivotable shaft means on which the support means is pivoted by a servomotor/pinion arrangement controlled by a programmable...
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4461121 |
Program-controlled grinding machine, particularly for sharpening of rotatable cutting tools
To permit cutting of rotatable machine tools, or sharpening of cutting edges therefrom, for example boring tools, drills, milling cutters and the like, a grinding head has positioned thereon two...
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4294042 |
Apparatus and method for grinding a helical surface on a flat blade
Apparatus for grinding a helical cutting surface on a flat cutting blade. Prior art grinders are complex, difficult to operate and expensive to use. The present grinding machine comprises a...
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4053287 |
Brake shoe grinding jig
A jig for use in grinding brake shoe linings of brake shoes having pivot means at one end which engage respective spaced pivot pins in the brake drum, the jig comprising a turntable, having central...
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4052175 |
Automatic snag grinder
An automatic snag grinder having conveyor means to feed a succession of parts to be ground into position before a ram. The ram pushes a part to be ground onto a tilting table whereafter the ram...
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4016683 |
Turbine blade edge grinder
A machine for resurfacing the leading edge portions of worn or cracked turbine blades and the like, comprising a machine bed, a power driven abrasive belt extending around multiple pulleys disposed...
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3988124 |
Skate sharpening machine
An improved contouring tool, advantageously used as a skate sharpening machine, comprising means to vary the contour of the skating blade with respect to its longitudinal arc and also with respect...
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3909983 |
Grinding device for removing cast metal projections from foundry castings
A grinding device comprising a workpiece support provided with immobilization means for the workpiece, an element for moving the workpiece towards the grinder by the rotation and/or relative...
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3902277 |
Method and apparatus for generating toric surfaces by the use of a peripheral surfacing tool
Method and apparatus for generating toric surfaces of varying curvature by the use of a single peripheral grinding tool. The toric surface is generated by sweeping the tool across a workpiece along...
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3902282 |
Reed sanding machine
A jig is provided for supporting an elongated strip of reed material with the concave surface thereof disposed upwardly. The jig is mounted for pivotal movement about a horizontal axis and an...
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3822510 |
AUTOMATIC GRINDING MACHINE
A machine for grinding a cutting surface on an article wherein the machine has magazine means for automatically feeding the articles to be ground to a grinding position and means for automatically...
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3813822 |
WEB THINNING MACHINE
Web thinning apparatus includes a yoke mounted grinding wheel and motor movable by a lead screw into engagement with the tip of a drill mounted in a clamp and orbited in an elliptical path by an...
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3769878 |
MACHINE TOOL FOR MACHINING COMPONENTS WITH TOROIDAL SLIDING SURFACES
A machine tool for machining components with toroidal surfaces comprising a fixed support which provides the virtual axis of revolution of the torus to be machined, a mobile table rotatively...
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3745716 |
SECTIONERS
A machine for sectioning and measuring thin layered materials such as are used in semiconductors in which: the workpiece is positioned in a mechanical chuck which supports and protects the...
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3719459 |
END MILL GRINDER
A production type machine is designed to grind end mills at a high rate while maintaining rigid standards of accuracy of dimension. Adjustments are quickly and easily made for different profiles of...
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3702518 |
AUTOMATIC GRINDING APPARATUS FOR MAGNETIC HEADS
An oscillating shaft for holding a magnetic head to be worked is mounted on a reciprocating table in opposed relation to a rotary grinding wheel. The reciprocating table is controllably moved...
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3688447 |
GRINDING MACHINE
This invention relates to a grinding machine and, more particularly, to apparatus for producing a notch on the periphery of the race of an anti-friction bearing to allow the introduction of a...
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3688449 |
DRUM GRINDER PARTICULARLY FOR GRINDING THE LINING OF BRAKE SHOES
An apparatus for grinding a brake shoe lining includes a hollow grinding drum having a grinding surface for grinding a brake shoe lining, a motor including a rotor and a stator in surrounding...
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3680262 |
END MILL GRINDER
A novel grinder for provided for notching and gashing end mills in order to grind novel and improved shapes of the cutting edges and land or tooth faces of the end mill. This grinding action is...
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3680263 |
METHOD AND APPARATUS FOR GRINDING END CUTTING TOOLS
A method and apparatus for mechanically grinding the end cutting teeth in a tool (such as a ball nose end mill) having spiral flutes and end cutting teeth that join with axial fluting. Rotary...
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3651602 |
DRILL GRINDING MACHINE
A simplified drill grinding machine capable of enabling unskilled persons to be quickly trained for high-production hand sharpening of drills, end mills, and the like, in which the indexing of the...
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3589075 |
AUTOMATIC CYCLE CONTOUR FINISHING MACHINE
A longitudinally reciprocable and transversely indexable base carries parallel upright pivots, one mounting a template holder and the other a workpiece holder. The holders each have head and tail...
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3589074 |
GRINDER FOR SEGMENT ROLLS
A grinder for grinding segment rolls to be used for rolling spiral drill grooves, wherein a crank driven by the headstock spindle is connected to the base through a telescopic link, the headstock...
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3583102 |
APPARATUS FOR THE FINISHING OF CONTOURED WOOD MEMBERS
An apparatus for the abrading of contoured wood members for the finishing and polishing thereof, wherein each longitudinally extending member is held in a yoke and rotated about its longitudinal...
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3574972 |
METHOD AND APPARATUS FOR FORMING FITTING COVERS
Abrasive means are employed to shape covers for conduit fittings from blocks of insulation material, illustratively foam plastic or fiberglas. The covers are formed in half sections and are...
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3537830 |
APPARATUS FOR GRINDING
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3449198 |
LENS BLANK
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3400499 |
Drill grinding machine
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3397492 |
Drill bit grinding accessory
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3335527 |
Sharpening apparatus for cutting tools
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3318050 |
Corn knife sharpener
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3234693 |
Brakeshoe grinder clamp
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3216151 |
Brake shoe grinder
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3102370 |
Apparatus for producing a drill point
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3098333 |
Method of sharpening gear cutting tools
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3060644 |
Brake shoe grinding device
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