US805170A - Boring-tool. - Google Patents

Boring-tool. Download PDF

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Publication number
US805170A
US805170A US22615904A US1904226159A US805170A US 805170 A US805170 A US 805170A US 22615904 A US22615904 A US 22615904A US 1904226159 A US1904226159 A US 1904226159A US 805170 A US805170 A US 805170A
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United States
Prior art keywords
tool
edges
boring
larger
grooves
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
Application number
US22615904A
Inventor
Philip Thomas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HENRY R WORTHINGTON
Original Assignee
HENRY R WORTHINGTON
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HENRY R WORTHINGTON filed Critical HENRY R WORTHINGTON
Priority to US22615904A priority Critical patent/US805170A/en
Application granted granted Critical
Publication of US805170A publication Critical patent/US805170A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/10—Arrangements for cooling or lubricating tools or work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2250/00—Compensating adverse effects during turning, boring or drilling
    • B23B2250/12—Cooling and lubrication
    • 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
    • Y10T408/44—Cutting by use of rotating axially moving tool with means to apply transient, fluent medium to work or product
    • 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
    • Y10T408/89—Tool or Tool with support
    • Y10T408/905—Having stepped cutting edges
    • Y10T408/906—Axially spaced

Definitions

  • This invention relates to an improved boring-tool, the object being to provide a simple, strong, and efficient tool by which a hole of one size may be bored and the outer end of this hole enlarged to any desired depth, and
  • Figure 1 is a side view of a drill embodying the invention in its complete and preferred form.
  • Figs. 2 and 3 are crosssections on lines 2 and 3 of Fig. 1 looking in the direction of the arrows.
  • A is the shank, and B the larger cutting portion, and O the smaller cutting portion of the tool.
  • the smallerportion O is made of any desired length and is of the usual twist form, having the spiral raised portions (0 and grooves Z), the raised portions to having the usual edges 1 1.
  • the raised portions (4 and grooves b and the edges 1, the successive portions of which form cutting edges at the point of the tool as the tool is ground, are continued throughout the entire length of that part of the tool which is to be used by successive grindings.
  • the cutting of the larger portion of the hole is provided by increasing the height of a portion of the parts a on the side next the grooves b to form the raised portions 0, having the spiral edges 2, successive portions of which form cutting edges at their ends for the larger bore as the larger portion of the tool is ground back, and which also extend the full length of that portion of the tool.
  • the small spiral grooves 3 parallel with the edges 1 2, which grooves aid in securing the proper clearance and oiling of the larger portion of the tool.
  • this boring-tool may readily be formed from asingle piece of metal, that both the larger and smaller portions may conveniently be ground until the tool is used up, and that there is no danger of injury to the edges 1 in grinding back the larger portion of the tool.
  • edges 1 2 are shown as parallel, and this is preferable for grinding and machining; but the invention, considered broadly, includes tools in which these edges are not parallel.
  • a boring-tool formed of a single piece and having cutting portions of different diameters with the edges of the portion of smaller diameter extending through the portion of larger diameter.
  • a boring-tool formed of a single piece and having cutting portions of different diameters with the edges of the portion of smaller diameter extending through the portion of larger diameter and parallel with the edges of the latter.
  • a boring-tool formed of a single piece and having the smaller portion O with spiral grooves Z; and spiral edges 1 and larger portion B through which the grooves b and edges 1 extend andwhich larger portion is provided with raised portions 0 having edges 2.
  • a boring-tool having the smaller portion O with spiral grooves b and spiral edges 1 and larger portion B through which the grooves Z) and edges 1 extend and which larger portion is provided with raised portions 0 having edges 2 and clearance-grooves 3.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)

Description

PATENTED NOV. 21, 1905 P. THOMAS. BORING TOOL.
' APPLICATION FILED SEPT.27, 1904.
UNITED STATES PATENT OFFICE.
PHILIP THOMAS, OF NEW YORK, N. Y., ASSIGNOR TO HENRY R. WORTH- INGTON, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.
BORING-TOOL.
Specification of Letters Patent.
Patented Nov. 21, 1905.
Application filed September 27, 1904. Serial No. 226,159.
To aZZ whom it may concern:
Be it known that I, PHILIP THOMAS, a citizen of the United States, residing at the borough of Brooklyn, city of New York, county of Kings, and State of New York, have invented certain new and useful Improvements in Boring-Tools, fully described and represented in the following specification and the accompanying drawings, forming a part of the same.
This invention relates to an improved boring-tool, the object being to provide a simple, strong, and efficient tool by which a hole of one size may be bored and the outer end of this hole enlarged to any desired depth, and
which shall provide for convenient grinding.
of the larger and smaller portions of the tool until the tool is used up.
As a full understanding of the invention can best be given by an illustration and description of a boring-tool embodying the same, such a description will now be given in connection with the accompanying drawings,
forming a part of this specification, and the features forming the invention will then be specifically pointed out in the claims.
In the drawings, Figure 1 is a side view of a drill embodying the invention in its complete and preferred form. Figs. 2 and 3 are crosssections on lines 2 and 3 of Fig. 1 looking in the direction of the arrows.
Referring to said drawings, A is the shank, and B the larger cutting portion, and O the smaller cutting portion of the tool. The smallerportion O is made of any desired length and is of the usual twist form, having the spiral raised portions (0 and grooves Z), the raised portions to having the usual edges 1 1. In the larger portion B of the tool the raised portions (4 and grooves b and the edges 1, the successive portions of which form cutting edges at the point of the tool as the tool is ground, are continued throughout the entire length of that part of the tool which is to be used by successive grindings. The cutting of the larger portion of the hole is provided by increasing the height of a portion of the parts a on the side next the grooves b to form the raised portions 0, having the spiral edges 2, successive portions of which form cutting edges at their ends for the larger bore as the larger portion of the tool is ground back, and which also extend the full length of that portion of the tool. At the base of the raised portions c'on the side at which the edges 2 are formed are preferably provided the small spiral grooves 3, parallel with the edges 1 2, which grooves aid in securing the proper clearance and oiling of the larger portion of the tool.
It will be seen that this boring-tool may readily be formed from asingle piece of metal, that both the larger and smaller portions may conveniently be ground until the tool is used up, and that there is no danger of injury to the edges 1 in grinding back the larger portion of the tool.
The edges 1 2 are shown as parallel, and this is preferable for grinding and machining; but the invention, considered broadly, includes tools in which these edges are not parallel.
It will be understood that the invention is not limited to a tool having two raised portions and grooves, but that this number may be varied and that the invention is not limited to the exact form of the tool shown.
lVhat I claim is- 1. A boring-tool formed of a single piece and having cutting portions of different diameters with the edges of the portion of smaller diameter extending through the portion of larger diameter.
2. A boring-tool formed of a single piece and having cutting portions of different diameters with the edges of the portion of smaller diameter extending through the portion of larger diameter and parallel with the edges of the latter.
3. A boring-tool formed of a single piece and having the smaller portion O with spiral grooves Z; and spiral edges 1 and larger portion B through which the grooves b and edges 1 extend andwhich larger portion is provided with raised portions 0 having edges 2.
4. A boring-tool having the smaller portion O with spiral grooves b and spiral edges 1 and larger portion B through which the grooves Z) and edges 1 extend and which larger portion is provided with raised portions 0 having edges 2 and clearance-grooves 3.
In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.
PHILIP THOMAS.
US22615904A 1904-09-27 1904-09-27 Boring-tool. Expired - Lifetime US805170A (en)

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US22615904A US805170A (en) 1904-09-27 1904-09-27 Boring-tool.

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Application Number Priority Date Filing Date Title
US22615904A US805170A (en) 1904-09-27 1904-09-27 Boring-tool.

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US805170A true US805170A (en) 1905-11-21

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2452702A (en) * 1944-12-18 1948-11-02 Lion Mfg Corp Drill grinding machine
US2479281A (en) * 1946-01-17 1949-08-16 Lion Mfg Corp Grinding machine
US2779039A (en) * 1950-12-18 1957-01-29 Nylok Corp Apparatus for manufacturing locking devices
US3578762A (en) * 1969-04-14 1971-05-18 Armco Steel Corp Self-drilling, reaming and tapping screw
US6126367A (en) * 1998-03-31 2000-10-03 Reed; Gary Jack Precision drill bit
US20040018064A1 (en) * 2002-03-15 2004-01-29 Liu Chunghorng R. Cutting tools
US20080193234A1 (en) * 2007-02-09 2008-08-14 The Boeing Company Cutter for drilling and reaming
US20130302100A1 (en) * 2009-03-30 2013-11-14 Guehring Ohg Rotationally driven multi-bevel step tool
US20160207122A1 (en) * 2015-01-15 2016-07-21 X'pole Precision Tools Inc. Blade fastening device having cuttign fluid guide grooves on a blade
US20170113283A1 (en) * 2013-07-26 2017-04-27 Mapal Fabrik Fur Prazisionswerkzeuge Dr. Kress Kg Drilling tool and method for producing drill hoels
CN109562463A (en) * 2016-07-14 2019-04-02 克莱斯博士玛帕精密仪器工厂两合公司 Step drill
US20220288702A1 (en) * 2019-07-09 2022-09-15 Kyocera Corporation Rotary tool and method for manufacturing machined product

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2452702A (en) * 1944-12-18 1948-11-02 Lion Mfg Corp Drill grinding machine
US2479281A (en) * 1946-01-17 1949-08-16 Lion Mfg Corp Grinding machine
US2779039A (en) * 1950-12-18 1957-01-29 Nylok Corp Apparatus for manufacturing locking devices
US3578762A (en) * 1969-04-14 1971-05-18 Armco Steel Corp Self-drilling, reaming and tapping screw
US6126367A (en) * 1998-03-31 2000-10-03 Reed; Gary Jack Precision drill bit
US20040018064A1 (en) * 2002-03-15 2004-01-29 Liu Chunghorng R. Cutting tools
US8714890B2 (en) * 2007-02-09 2014-05-06 The Boeing Company Cutter for drilling and reaming
US20080193234A1 (en) * 2007-02-09 2008-08-14 The Boeing Company Cutter for drilling and reaming
US20130302100A1 (en) * 2009-03-30 2013-11-14 Guehring Ohg Rotationally driven multi-bevel step tool
US9321111B2 (en) 2009-03-30 2016-04-26 Guehring Ohg Rotationally driven multi-bevel step tool
US20170113283A1 (en) * 2013-07-26 2017-04-27 Mapal Fabrik Fur Prazisionswerkzeuge Dr. Kress Kg Drilling tool and method for producing drill hoels
US10076793B2 (en) * 2013-07-26 2018-09-18 Mapal Fabrik Fur Prazisionswerkzeuge Dr. Kress Kg Drilling tool and method for producing drill holes
US20160207122A1 (en) * 2015-01-15 2016-07-21 X'pole Precision Tools Inc. Blade fastening device having cuttign fluid guide grooves on a blade
CN109562463A (en) * 2016-07-14 2019-04-02 克莱斯博士玛帕精密仪器工厂两合公司 Step drill
JP2019520228A (en) * 2016-07-14 2019-07-18 マパル ファブリック フュール プラツィジョンズベルクゼウグ ドクトル．クレス カーゲー Stepped drill
US20190224759A1 (en) * 2016-07-14 2019-07-25 MAPAL Fabrik für Präzisionswerkzeuge Dr. Kress KG Step drill
US11077504B2 (en) * 2016-07-14 2021-08-03 Mapal Fabrik Fur Prazisionswerkzeuge Dr. Kress Kg Step drill
US20220288702A1 (en) * 2019-07-09 2022-09-15 Kyocera Corporation Rotary tool and method for manufacturing machined product

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