US2401471A - Drill grinder - Google Patents
US2401471A - Drill grinder - Google Patents Drill grinder Download PDF Info ... Though I have disclosed a particular form of my drill grinding attachment, I do not wish to be limited to the same, but desire to include in my invention the drill grinding attachment as set forth in the following claims.
US3374587A - Drill grinding attachment - Google …
US3374587A - Drill grinding attachment - Google Patents Drill grinding attachment Download PDF Info ... Crawford ZNVENTORS BY and United States Patent 3,374,587 DRILL GRINDING ATTACHMENT Thomas W. Simpkins, 4605 Leeds St., El Paso, Tex. 79903, and Howard H. Crawford, El Paso, Tex.; said Crawford assignor to said Simpkins Filed Mar. 16, ...
US2583159A - Drill grinding apparatus - Google …
DRILL GRINDING APPARATUS Filed Oct. 8, 1948 2 SHEETS-SHEET 2 ,fla/)74242077247 Patented Jan. 22, 1952 UNITED STA-rss lement lOFFICE DRILL GRINDING APPARATUS Nels H. Swanson, Chicago, Ill. Application october s, 194s, serial No. 53,434 . 11 Claims.
US5649853A - Drill bit grinding machine - Google …
A drill bit grinding machine including a grinding control device controlled to move the drill bit, permitting it to be ground by the grinding wheel, the grinding control device including a mounting base, a coupling block pivoted to the mounting base to hold a bit holder, a side board coupled to the coupling block, a driven gear controlled to turn the bit holder, an axial movement control block ...
US4142332A - Drill grinding fixture - Google Patents
A drill grinding fixture for drills of between about 1/16 to 1/2 inch diameter, including an inclined trough member for receiving the drill to project from the forward end of the trough member toward the vertical face of a grinding wheel. The trough member is rotatable on a vertical pin of which the axis is offset 1/8 inch to the left of the bottom of the V-shaped trough, the pin being located ...
US643703A - Drill-grinding machine. - Google …
US643703A US73671299A US1899736712A US643703A US 643703 A US643703 A US 643703A US 73671299 A US73671299 A US 73671299A US 1899736712 A US1899736712 A US 1899736712A US 643703 A US643703 A US 643703A Authority US United States Prior art keywords drill holder grinding wheel journal Prior art date 1899-11-11 Legal status (The legal status is an assumption and is not a …
US2202819A - Twist drill grinding attachment - …
US2202819A US205621A US20562138A US2202819A US 2202819 A US2202819 A US 2202819A US 205621 A US205621 A US 205621A US 20562138 A US20562138 A US 20562138A US 2202819 A US2202819 A US 2202819A Authority US United States Prior art keywords drill trough grinding wheel holder block Prior art date 1938-05-02 Legal status (The legal status is an assumption and is not a …
JPH04146062A - Drill grinding method and nc …
PURPOSE:To perform automatic polishing of a two-rake drill by relatively moving the side of a truncated cone shape grinding wheel along an imaginary line of the drill, and thereby grinding the rake faces thereof. CONSTITUTION:A side surface of a truncated cone shape grinding wheel 20, having a bottom angle (d) equal to the angle formed between a flat plane orthogonally intersecting the axial ...
US Patent for Grinding machine for drill bits Patent ...
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 grindstone and holding the drill bit in an inclined position at a predetermined angle relative to the grinding surface of the grindstone; and a ...
US Patent for Drill bit grinder structure Patent …
Justia Patents Stationary Work Holder US Patent for Drill bit grinder structure Patent (Patent # 6,676,494) ... U.S. Pat. No. 5,735,732 discloses a grinding apparatus for grinding drill bit. The grinding apparatus includes a sleeve clamp for locating the drill bit in accordance with the shape of the tip of the drill …
Drill grinding machines - Kaindl Schleiftechnik, …
Kaindl drill grinding machines allow you to sharpen the various drill types like twist drills, step drills, carbide drills, centering drills, flat drills, sheet metal and stone drill bits as well as two-edged milling tools. Besides the traditional cone cut, other types of grinding shapes such as for example a four-faceted grind can be accomplished.
US Patent for Apparatus for grinding a shank of a …
An apparatus for grinding a shank of a drill bit includes a base and several movable jaws supported by the base, that are movable toward each other and away from each other. A support ring is rotatably secured to the base, which has a central opening that encircles the movable jaws. A laterally adjustable grinding wheel support is secured to the support ring.
How to Sharpen a Drill Bit Quickly and Easily - …
11-6-2017 · The method I use to sharpen twist drill bits every day in the workshop. Once you do this once it is very easy and quick to touch up the facets to resharpen the bit. No fancy twists of the wrist ...
US Patent for Drill grinder Patent (Patent # …
Justia Patents US Patent for Drill grinder Patent (Patent # 3,952,459) ... Oct 29, 1974 - Lisle Corporation. An improved drill grinder includes a bracket construction for holding a drill against a grinding wheel. The bracket construction includes a number of adjustments for setting the point angle on the drill, the chisel edge angle, ...
US Patent for Drill cutting edge grinder Patent …
Justia Patents US Patent for Drill cutting edge grinder Patent (Patent # 4,703,588) ... Dec 12, 1985. A cutting edge grinder for grinding the cutting edges of drills includes a center shaft coaxial with a chuck to hold a drill to be ground, a cam attached to the center shaft, ...
Drill bit sharpening General Tools 825 - YouTube
20-1-2015 · Drill bit sharpening General Tools 825 Jeffers Caffeineracer. Loading ... General Drill Grinding Attachment no. 825 clean / restoration - Duration: 5:21. Tool Renool 3,100 views.
Drill and Tool Grinding Machines In Dubai,UAE - …
The “Peiping” is a professional manufacturer of tools, cutters, drills grinding machines Drill GrinderTool Grinder-Produced by PEIPING PRECISION and was established in 1980.“Simple to set-up, easy to operate, grinding fast and high accuracy” are our purpose.
Drill Bit Grinder MR-26D(patent) - DIYTrade
Drill Bit Grinder MR-26D(patent) MR-26D - MEIRI MACHINE TOOL Products Made In China, China Manufacturer. Drill bit grinder MR-26D (Patent) Portable idiot drill grinder, twist drill grinder, Universal small drill grinder, universal big drill grinder, universal precision drill sharpener, it is accurate and fast with easy operation. 1) Grinding is accurate and rapid, easy operation, with no skill
KAINDL PROFESSIONAL SHARPENING & …
Drill grinding machines 4; Core drill grinding machines ... Over 300 patents. Personal contact. 45 employees. Kaindl money-back-guarantee. 30 days. Kaindl Schleiftechnik Reiling GmbH Remchinger Str. 4 75203 Königsbach-Stein +49 (0) 72 32 - 4001-0 [email protected]. Legal.
Drill - Wikipedia
A drill is a tool primarily used for making round holes or driving fasteners. It is fitted with a bit, either a drill or driver, depending on application, secured by a chuck.Some powered drills also include a hammer function.. Drills vary widely in speed, power, and size. They are characteristically corded electrically driven devices, with hand-operated types dramatically decreasing in ...