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The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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| Number | Title | Issue Date |
| 7118446 | Grinding apparatus and method A grinding assembly for shaping work pieces that includes one or more grind spindles. Each of the grind spindles include two independent grinding wheels driven by a single spindle drive. The grind spindles translate horizontally to perform both edge and face grindin... | 10/10/2006 |
| 7033255 | Chamfer processing method and device for plate material Chamfer processing is carried out by making plate material W end faces come in contact with rotating grinding belts. The grinding surfaces of the opposing side by side grinding belts are on the centerline in the thickness direction of the plate material. The center ... | 04/25/2006 |
| 6902469 | Work chamfering apparatus and work chamfering method A work chamfering apparatus includes a work holding portion. The work holding portion includes a work table and a clamper. The work table has an upper surface having two end portions each formed with holding grains projecting out of the upper surface. The two end po... | 06/07/2005 |
| 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 supporting the abrading tip, the abrading head being positioned ... | 04/20/1999 |
| 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 a thickness so that the periphery thereof can enter the no... | 07/04/1995 |
| 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 machine and have it automatically sharpened in a manner t... | 02/22/1994 |
| 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 member, reciprocatingly turnably displacing the ferrules alon... | 06/15/1993 |
| 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 chiefly characterized by the following operations: to put the co... | 05/29/1990 |
| 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 pivotable about an axis parallel to the rotating axis of the gr... | 07/18/1989 |
| 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 held on a jig member pivotally monted for movement through ... | 08/30/1988 |
| 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 provided with a large unobstructed inlet and an outlet connecte... | 04/07/1987 |
| 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 provided with a convex surface in the longitudinal and transvers... | 01/06/1987 |
| 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. The grinding machine comprises a turntable for a spindle t... | 10/28/1986 |
| 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 rectangularly related directions, third drive means for produc... | 08/26/1986 |
| 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 carriage which is reciprocable thereon along a vertical secon... | 08/26/1986 |
| 4589231 | 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 provided with a large unobstructed inlet and an outlet connecte... | 05/20/1986 |
| 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 for the blade edge. Clamping plates on a cradle hold the ... | 12/17/1985 |
| 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 for the blade edge. Clamping plates on a cradle hold the ... | 08/13/1985 |
| 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 controller and a position indicating means on the pivotable sha... | 04/30/1985 |
| 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 spindles which carry at least three grinding wheels; one of ... | 07/24/1984 |
| 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 stationary support (74), a grinding arbor (76), an adjustable cam... | 10/13/1981 |
| 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 swivel means, mounting means on the turntable, means for ... | 10/11/1977 |
| 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 returns. The table tilts to about a 30° angle at which point... | 10/04/1977 |
| 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 above the bed, and a carriage movable over the bed in dir... | 04/12/1977 |
| 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 to the centering of the arc. The sharpener of the inventio... | 10/26/1976 |
