US119565A - Improvement in screw-cutting devices - Google Patents
Improvement in screw-cutting devices Download PDFInfo
- Publication number
- US119565A US119565A US119565DA US119565A US 119565 A US119565 A US 119565A US 119565D A US119565D A US 119565DA US 119565 A US119565 A US 119565A
- Authority
- US
- United States
- Prior art keywords
- screw
- improvement
- cutting devices
- die
- cutting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 241000220010 Rhode Species 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 229910001296 Malleable iron Inorganic materials 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000036346 tooth eruption Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/86—Tool-support with means to permit positioning of the Tool relative to support
- Y10T408/865—Pivotable Tool
- Y10T408/868—Pivotable Tool with multiple cutting positions
Definitions
- This invention consists of a screw-plate provided with a solid die for threading' bolts7 screws, Src., the die of which is so constructed that the teeth or cutting part-s may be sharpened by grinding on a stone, as will hereinafter more fully appear.
- A represents a plate or die-holder made of malleable iron or other suitable material.
- B represents a steel disk, with holes drilled and tapped (with a screw-tap) through it near the outer edge. A part of the stock between the tapped holes and outer edge of the disk is then iled out, thus forming cutting-edges to the die, as shown at a in Fig. 1.
- the die B When arrangedy for use the die B is held in plate A by means of screw c and spring-catch d, as shown in Fig. l.
- the disk mayl contain five (more or less) tapped holes, toothed as described, thus forming several dies in one piece or plate.
- the spring-catch d By pressing on the pin e the spring-catch d will be raised, allowing the die to be turned on screw c, so that the required thread may be brought directly over the hole h through the plate A, ready for use.
- Thel cutting parts of the die B may be sharpened, when dulled, by grinding on the corner of an ordinary grindstone.
- the circular plate B pivoted to said stock and constructed with a series of holes near its edge, and with the metal intervening between each hole and the edge filed out or otherwise removed, as described, to form cutting-teeth that may be sharpened.
Description
UNITED STATES PATENT OFFICE.
GEORGE W.v BROWN AND A. T. GIFFORD, OF PROVIDENCE, RHODE ISLAND.
IMPROVEMENT IN SCREW-CUTTING DEVICES.
Specification forming part of Letters Patent No. 119,565, dated October 3, 1871.
To all whom it may concern:
Be it known that we, GEORGE W. BROWN and A. T. GIFFORD, of Providence, in the county of Providence and in theState of Rhode Island, have invented a new and useful Improvement in Screw-Plates 5 and we do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings and letters of reference marked thereon making a part of this specification, in which- Figure l is a plan. Fig. 2 is a longitudinal section.
This invention consists of a screw-plate provided with a solid die for threading' bolts7 screws, Src., the die of which is so constructed that the teeth or cutting part-s may be sharpened by grinding on a stone, as will hereinafter more fully appear.
To enable those skilled in the art to make and use our invention, we now proceed to describe its construction and operation.
Similar letters in drawings refer to like parts.
A represents a plate or die-holder made of malleable iron or other suitable material. B represents a steel disk, with holes drilled and tapped (with a screw-tap) through it near the outer edge. A part of the stock between the tapped holes and outer edge of the disk is then iled out, thus forming cutting-edges to the die, as shown at a in Fig. 1.
When arrangedy for use the die B is held in plate A by means of screw c and spring-catch d, as shown in Fig. l. The disk mayl contain five (more or less) tapped holes, toothed as described, thus forming several dies in one piece or plate. By pressing on the pin e the spring-catch d will be raised, allowing the die to be turned on screw c, so that the required thread may be brought directly over the hole h through the plate A, ready for use.
Thel cutting parts of the die B may be sharpened, when dulled, by grinding on the corner of an ordinary grindstone.
We are aware that dies made complete in one piece of steel, technically called solid dies, are in use 5 but such dies are toothed on the inside, and cannot be sharpened without annealing, which process decarbonizes the steel, rendering it less fit for cutting purposes.
Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is-
In combination with the stock A, the circular plate B pivoted to said stock and constructed with a series of holes near its edge, and with the metal intervening between each hole and the edge filed out or otherwise removed, as described, to form cutting-teeth that may be sharpened. by
grinding, all as set forth.
GEO. W. BROWN.
Witnesses: A. T. GIFFORD.
FEEDK. A. FALRBROTHEE, JOHN HAMILTON.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US119565A true US119565A (en) | 1871-10-03 |
Family
ID=2189014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US119565D Expired - Lifetime US119565A (en) | Improvement in screw-cutting devices |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US119565A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3061848A (en) * | 1960-01-04 | 1962-11-06 | John M Wilkins | Thread cutting device with selectively positionable die holder |
| US20040086348A1 (en) * | 2002-11-05 | 2004-05-06 | Rahberger Edward J. | Tool for repairing damaged threads |
-
0
- US US119565D patent/US119565A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3061848A (en) * | 1960-01-04 | 1962-11-06 | John M Wilkins | Thread cutting device with selectively positionable die holder |
| US20040086348A1 (en) * | 2002-11-05 | 2004-05-06 | Rahberger Edward J. | Tool for repairing damaged threads |
| US6921236B2 (en) | 2002-11-05 | 2005-07-26 | Edward Rahberger | Tool for repairing damaged threads |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US119565A (en) | Improvement in screw-cutting devices | |
| US94503A (en) | Improvement in rasps | |
| US111099A (en) | Improvement in augers | |
| US464568A (en) | Screw-cutting die | |
| US68064A (en) | Improvement in milling-tools | |
| US82118A (en) | The graphic co | |
| US120266A (en) | Improvement in dies for cutting screw-threads | |
| US104769A (en) | Improvement in punches | |
| US26144A (en) | John h | |
| US189719A (en) | Improvement in taps and dies | |
| US867725A (en) | Lathe tool and holder. | |
| US286673A (en) | Stock and die | |
| US66304A (en) | Joseph ceo | |
| US83349A (en) | Improved lathe-chtjck | |
| US252060A (en) | John sherman | |
| US120162A (en) | Improvement in punches | |
| US441603A (en) | Sven tideman | |
| US29657A (en) | Combined chuck and countersink | |
| US88886A (en) | Improvement in the manufacture op sheet-metal screw-caps | |
| US202838A (en) | Improvement in watchmakers lathe-chucks | |
| US77819A (en) | Charles krbbs | |
| US282377A (en) | Assig-nob to | |
| US399707A (en) | Screw-cutting die | |
| US54037A (en) | Improved tool for upsetting saw-teeth | |
| US127170A (en) | Improvement in knife-sharpeners |