US643703A - Drill-grinding machine. - Google …
Ina drill-grinding machine, the combination of the base A, carrying a suitable grinding-wheel B; a cylindrical arm A extending parallel to the axis of said grindingwheel; a bracket 0 adj ustably supported on said arm A; an arm D with a journal standing at an angle to the face of said grinding-wheel extending into a journal-bearing box 0 back of the face of said grinding-wheel and extending ...
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 ...
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.
US2768485A - Drill grinding fixture - Google Patents
US2768485A - Drill grinding fixture - Google Patents Drill grinding fixture Download PDF Info Publication number US2768485A ... 1953-04-03 Priority to US346682A priority Critical patent/US2768485A/en 1956-10-30 Application granted granted Critical
US3374587A - Drill grinding attachment - Google …
US3374587A - Drill grinding attachment - Google Patents Drill grinding attachment Download PDF Info Publication number US3374587A ... 1966-03-16 Priority to US53489466 priority Critical patent/US3374587A/en 1968-03-26 Application granted granted Critical
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 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, ...
US2632983A - Drill end sharpening means - …
US2632983A US124350A US12435049A US2632983A US 2632983 A US2632983 A US 2632983A US 124350 A US124350 A US 124350A US 12435049 A US12435049 A US 12435049A US 2632983 A US2632983 A US 2632983A Authority US United States Prior art keywords means axis grinding wheel drill Prior art date 1949-10-29 Legal status (The legal status is an assumption and is not a legal …
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, ...
US607306A - Twist-drill-grinding machine - …
The movement of the drill-holder upon these ways, which. are inclined horizontally to the axis of the drill, determines the varying clearance of different-sized drills, the principle of which has been applied to many other drill-grinding machines and is fully explained in my Patent No. 411,85, dated October 1, 1889, Sheet 3, Fig. 6, of specification, line No. 95.
DRILL GRINDING MACHINES
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.
DE Patent: 375,851 - Drill grinding machine
DE patent 375,851 Drill grinding machine was issued to Percy Hunt of Manchester, England and Herbert William Hunt of Manchester, England and Herbert Hunt of Manchester, England. It …
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.
US Patent for Grinding device Patent (Patent # …
A hand held grinding device for sharpening drill bits comprises a pair of bearing members which rotatably support a grinding wheel fast on a shaft. Portion of the shaft is engagable with the chuck of a drill. A guide plate with grooves for various size ranges of drill bits is hingedly connected to the bearing members by a plastics hinge. The grooves direct the drill bit to the grinding wheel ...
Jig for drill bit sharpening DBS-22 | Tormek Australia
The Stone Grader can be especially useful when grinding thicker drills which have a large grinding area. DBS-22 Drill Bit Sharpening Attachment. Search for reseller ... Patent No. US 8425277, EPO Patent pending. RU 2459693, AU 2009263039, CA 2,728,744. ...
Full text of "US Patent 2601748: Drill grinder"
In a drill grinding device the combination of a suppor for ro.tatably receiving a plurality of drills aligned in a circumferential path with their axes parallel, a driving belt for engag- 70 ing said drills, said support being provided with pins fo engage said belt, a rota able abrad- ing element for dressing the tips of said dril!s, means for otating said support fo bring said drills ...
Drill grinding apparatus - Swanson, Nels H.
Complete Patent Searching Database and Patent Data Analytics Services. Login Sign up ... Drill grinding apparatus . United States Patent 2583159 . Inventors: Swanson, Nels H. Application Number: US5343448A . Publication Date: 01/22/1952 ...
Amazon.com: drill grinding attachment
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Toshiaki Hosoi Inventions, Patents and Patent …
This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO). Drill and drill grinding …
Used Drill grinding machines for sale - …
drill diameter 3 - 40 mm drilling length - mm lip angle 50 - 180 ° toolpiece turning speed range 7-60 U/min grinding feed 0,4 - 4 mm/min cuttings 2-3 (4-6) grinding wheel size 200x40x51 mm total power requirement 1,1 kW weight of the machine ca. 0,6 t Inie2lp Mechanic: good Optical condition: good The machine can be viewed under current.