For many competitive high school football players like Garrett Harper, the intensity of this contact sport has its price.

A knife sharpener having an angled bolster for providing predetermined sharpening angles with respect to the sharpening surface is provided. The angled bolster of the knife sharpener preferably includes two different angled surfaces for establishing at least two different predetermined sharpening angles for a cutting implement to be sharpened. The angled bolster is configured to set up the knife sharpening angle at predetermined angles with respect to the sharpening surface.

A sharpener for sharpening a pencil, in particular a cosmetic pencil, is especially suitable, when used correctly, for producing a particularly uniform outer jacket edge in the region of the pencil tip. The sharpener includes a sharpener body, in which a pencil guide channel is provided. The pencil guide channel has a circular cone-shaped channel section and opens out in a pencil inlet opening on the outer side of the sharpener body. A paring blade is positioned tangentially to the lateral surface of the channel section. The paring blade serves to pare off a pencil tip, which includes a front lead section and a rear outer jacket section. A shaping tool cuts a shoulder into the pencil tip, the shoulder being set back in relation to a circular cone-shaped enveloping surface of the pencil tip. The shaping tool is arranged relative to the pencil guide channel to insert the shoulder into the transition between the lead section and the outer jacket section of the pencil tip.

In one embodiment of the present invention, a power tool includes a housing having a first opening formed therein with a motor being contained within the housing. The tool includes a device for sharpening a writing implement. The sharpening device is at least partially contained within the housing and accessible through the first opening which permits the writing implement to be inserted into the sharpening device. The sharpening device is operatively connected to the motor such that operation of the motor drives the sharpening device.

A method of making a tillage blade by obtaining a generally circular sheet metal steel disc having an outer peripheral edge. Waves are made in the outer peripheral edge of a circular steel disc in a predetermined pattern while the steel is cold. The outer peripheral edge is then sharpened at a predetermined acute angle with respect to a first plane by grinding. Then the disc is heat treated to make it harder so it will wear longer. If it is desired to have a concave/convex disc, instead of a coulter, then during the heat treating process the disc is deformed so that the sharpened portions of the peripheral edge remain generally in the first plane but a central portion of the disc is disposed at least partially in a second plane which is parallel to but spaced from the first plane.

Apparatus and associated method for sharpening a cutting edge of a tool. In accordance with some embodiments, a side of the tool is placed in contacting engagement against a reverse sharpening guide surface to orient the tool at an acute angle with respect to an abrasive surface, with the abrasive surface extending in a lateral direction from a first end to a second end and the reverse sharpening guide surface located proximate the first end. The tool is moved away from the reverse sharpening guide surface and along the abrasive surface in the lateral direction toward the second end while nominally maintaining the tool at the acute angle so that a cutting edge of the tool is sharpened against the abrasive surface in a trailing cutting edge orientation with a top surface of the tool opposite the cutting edge maintained closer to the second end than the cutting edge.

A self sharpening razor system includes a razor having a handle and a safety housing with a blade extendably received within the safety housing. An integrated sharpening system incorporates an armature receiving the razor and movable between a first position for attachment and extraction of the razor and a second position for sharpening of the blade. A sharpening mandrel is provided with sharpening surfaces for sharpening first and second sides of the blade. The sharpening mandrel is rotatable from to engage the first sharpening surface and second sharpening surface. The sharpening mandrel is laterally oscillated for sharpening of the blade. In alternative embodiments, sharpening is accomplished with reciprocating honing plates with available stropping wheels or integrated honing and stropping wheels with exposure adjustability and sharpness adjustability via honing time variance. A controller is provided for positioning of the armature and sharpening mandrel.

A shaving system includes a razor having a handle and a safety housing with a blade extendably received within the safety housing. An integrated sharpening system incorporates an armature receiving the razor, the armature being movable from a first position for attachment and extraction of the razor and a second position for sharpening of the blade. A sharpening mandrel is provided with a first sharpening surface for sharpening a first side of the blade and a second surface for sharpening of a second side of the blade. The sharpening mandrel is rotatable from a first position for engagement of the first sharpening surface to a second position for engagement of the second sharpening surface. The sharpening mandrel is laterally oscillated for sharpening of the blade. A controller is provided for positioning of the armature and sharpening mandrel.

In one aspect, the invention is directed to a sharpener for sharpening a corner edge of a snow travel member, which may be, for example, a ski or a snowboard. The corner edge is between a bottom face and a side face of the snow travel member. The sharpener includes an angle adjustment mechanism to adjust the angle between surfaces on the sharpener that support the bottom face and side face of the snow travel member, in order to accommodate different snow travel members, that may have different angles between their bottom face and their side face. For example, the angle adjustment member may be capable of adjusting the angle between a bottom face orienting surface on the sharpener and a side face orienting surface on the sharpener between a range of angles. The range of angles may be, for example, a range from 85 degrees and 90 degrees.

The present invention is a sharpening tool and sharpening system for sharpening snowmobile carbide wear rails and studs and a kit of parts that includes the sharpening tool and a steering member having a carbide wear rail. The sharpening tool is attachable to the chuck of a hand held drill and includes a shaft attachable to the chuck of the hand held drill and cylindrical head affixed to the shaft. The cylindrical head includes a rail groove surfaced in an abrasive material for sharpening wear rails.

A skate squaring device includes a main frame having a slot to receive a skate blade. The main frame is designed to attach to a portion of a skate sharpening fixture such that calibration lines on the main frame are perpendicular to a centerline axis of a body of the skate blade when mounted in the holder. A magnetic angle is attached to the end of the skate blade and positioned adjacent a face of the main frame having the calibration lines to determine if the skate blade edge is square.

Embodiments provide various components of a chain saw, including saw chain elements, sprockets, and other fixtures, that may facilitate sharpening of cutter links during operation. In various embodiments, the components may increase stability during sharpening, provide nose mounted sharpening fixtures, and/or facilitate the resizing and/or reshaping of a sharpening element.

The kitchen knife with the sharpener includes: a cutout recess formed in an end of the handle; a locking space extending from the cutout recess; and a sharpener, including: a locking part removably received in the locking space; a sharpener body extending from the locking part; a whetting groove transversely formed in the sharpener body; plate-shaped whetstones inclinedly installed on opposing sidewalls of the whetting groove so that the whetstones form a V-shaped arrangement; and a rubber cushion placed below a rear surface of a whetstone.

An adjustable manual abrasive sharpener having a pair of sharpening slots formed in a frame with opposing abrasive arms being pivotally mounted in each of the sharpening slots. A rod is mounted on the frame for rotatable motion and for linear motion long its axis of rotation from a position at which the rod is locked against rotation to a depressed position whereby the rod may be rotated. The bottom end portion of the rod includes a pinion gear which engages a pair of gear racks which are mounted for movement laterally relative to the axis of rotation of the rod. The pair of gear racks respectively engage slots formed on the bottom of the abrasive arms in each sharpening slot. Rotation of the rod causes movement of the gear racks to adjust each pair of abrasive arms with respect to each other to vary the sharpening angle of the abrasive elements.

A chain sharpening device arranged to sharpen a saw chain. The device comprises a housing (110), arranged to be detachably mounted on the guide bar (3), a sharpening element (140) selectively displaceable relative to the housing between a resting state and a sharpening state, an actuator (150), selectively displaceable between an inactivated state and an activated state, which actuator is connected to the sharpening element and arranged to selectively bring the sharpening element from the resting state to the sharpening state, a first biasing member (160) operatively connected to the actuator and arranged to bias the actuator towards its inactivated state, a second biasing member (170), operatively connected to the sharpening element and arranged to enable relative movement between the actuator and the sharpening element when the sharpening element is in the sharpening state, so as to delimit a force with which the sharpening element (140) can be pressed towards the saw chain.

A portion of the sharpener handle is recessed to receive the curved blade of a lopper. The cutaway allows the sharpening element to sharpen the lopper blade along its entire length. Additional sharpening elements can be positioned along the handle to provide a multipurpose sharpening tool.

A blade sharpening system using the interior surface of a grinding wheel against which a blade is drawn along its entire length for sharpening. The sharpening system includes a blade holding configuration having multiple hinged arms. A cam operating between two of the hinged arms serves to alter the angle of incidence between the blade and the grinding wheel as the blade is drawn across the grinding wheel. The result is that a wide variety of different blade configurations can be easily accommodated by the sharpening system.

A multi-rod hand-held sharpener includes a handle with an outer grip surface for a hand of a user, a first abrasive rod having a first outer abrasive surface with a first abrasiveness level, and a second abrasive rod having a second outer abrasive surface with a second abrasiveness level different from the first abrasiveness level. At least one guide surface extends toward the first sharpening surface at a selected guide angle non-orthogonal to the first sharpening surface. The user contactingly engages a side of the tool against the guide surface and a cutting edge of the tool against the first abrasive surface, and then advances the side of the tool away from the guide surface and the cutting edge against the first abrasive surface while maintaining the tool at the selected guide angle. An optional second guide adjacent the second abrasive surface at a different angle facilitates micro-beveling.

I love the idea of being able to influence or create melodic beats with simple play.

Richard Lutz takes his pew for the Ben Johnson classic that caustically sends up his fellow Londoners of 1610.

Sound Magic has announced the release of Neo Erhu, a hybrid modeled virtual instrument featuring an enhanced version of the Erhu aka Chinese violin. Neo Erhu uses Music Domain Synthesis, a new technology that can create a digital instrument from scratch, removing the limitation of sampling and modeling. Through Music Domain Synthesis technology, Neo Erhu […]

The post Sound Magic releases Neo Erhu, Cadenza Cello, Classical Guitar and Hybrid Harpsichord appeared first on rekkerd.org.

As smart devices become a bigger and bigger part of our lives, we look at how Facebook and other companies gather information about their users and turn it into profits. 

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As the pandemic sends more people online looking for entertainment, we look at how Facebook and other companies gather information about their users and turn it into profits. 

This episode originally was broadcast Aug. 3, 2019.

Don’t miss out on the next big story. Get the Weekly Reveal newsletter today.

“America was built on a white supremacist caste system which centers whiteness as the norm…”-Dr. A. Breeze Harper On this edition of the Secret Ingredient the secret ingredient is whiteness. Join Raj Patel, Tom Philpott, and Rebecca McInroy as they sit down with Dr. Amie Breeze Harper, author of Scars: A Black Lesbian Experience in...

The CFL is idle during the coronavirus pandemic.

Eating should be a pleasure — and when you can take care of your health while taking care of your cravings, it’s doubly fulfilling. Here’s how to eat for your eyes.

TORONTO (AP) — Vancouver Canucks goalie Jacob Markstrom is using a tennis ball machine as part of his training to stay sharp. Columbus Blue Jackets counterpart Joonas Korpisalo doesn’t have that technology at his disposal during the coronavirus pandemic, so a wall has had to do the trick. Toronto’s Frederik Andersen is self-isolating with teammate […]

CHARLESTON, S.C. — The Democratic presidential candidates delivered a barrage of criticism against their party’s emerging front-runner, Sen. Bernie Sanders, at a debate on Tuesday night, casting him as a divisive figure with unrealistic ideas, even as they continued to batter Michael Bloomberg for his extreme wealth, his record on policing and behavior toward women. […]

Immigrants in the U.S. sent an estimated $150 billion to their home countries in 2019 — half to Latin America and the Caribbean. The World Bank is predicting a sharp decline in remittances this year.

Shares of Nexstar Media Group, Inc. (NXST) are rising more than 8% Wednesday following significant increase in its first-quarter earnings and sales.

Following the pullback seen in the previous session, stocks have shown another notable move to the downside during trading on Friday. The major averages continue to give back ground after ending Wednesday's trading at their best closing levels in well over a month.

Traders shrugged off a report showing a sharp contraction in U.S. economic activity, sending stocks sharply higher during trading on Wednesday. The major averages have all surged into positive territory after ending the previous session in the red.

European markets ended sharply lower on Monday as an escalation in U.S.-China tensions over the origin of the coronavirus outbreak hurt sentiment and triggered heavy selling across the board.

The Switzerland stock market ended sharply lower on Monday amid an escalation in U.S.-China tensions over the origin of the coronavirus outbreak.

A fresh-feeling recording of ear-popping brilliance.

A sharp rise in water use has prompted warnings from a former WA state water minister that the Government may need to bring forward construction of a desalination plant, putting significant upward pressure on household water bills.

It was all over quickly, but a short, sharp storm has brought hail and a little bit of rain to parts of Brisbane, Toowoomba and the Gold Coast.

UK manufacturers reported the quickest falls in output volumes and total new orders since 2009 in the three months to April, while business optimism plunged at a record pace. That’s according to the latest CBI quarterly Industrial Trends Survey.

(United States Supreme Court) - Clarified when federal law will preempt a state law claim that a drug manufacturer failed to warn consumers of a drug's risks. Held that this preemption question is one for a judge to decide, not a jury. Also spelled out the "clear evidence" standard that applies in this context. Justice Breyer, joined by five justices, delivered the U.S. Supreme Court's majority opinion in this product liability lawsuit against a drugmaker.

(United States Federal Circuit) - Affirming the district court's determination that patents relating to aspects of the production of an antibiotic compound were obvious implementations of disclosures made in other patents that would constitute nothing more than the routine way a skilled artisan would apply the patent's teachings.

(United States Federal Circuit) - Affirming the District Court's determination that a proposed generic nasal spray would not infringe the patents of a company manufacturing the Nasonex nasal product.

(United States Supreme Court) - Clarified when federal law will preempt a state law claim that a drug manufacturer failed to warn consumers of a drug's risks. Held that this preemption question is one for a judge to decide, not a jury. Also spelled out the "clear evidence" standard that applies in this context. Justice Breyer, joined by five justices, delivered the U.S. Supreme Court's majority opinion in this product liability lawsuit against a drugmaker.

Keesha Sharp finds strength even when overcome by fear.