US417360A - Expansible reamer - Google Patents

Expansible reamer Download PDF

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Publication number
US417360A
US417360A US417360DA US417360A US 417360 A US417360 A US 417360A US 417360D A US417360D A US 417360DA US 417360 A US417360 A US 417360A
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United States
Prior art keywords
splits
bore
lengthwise
tube
tool
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Expired - Lifetime
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
    • B23B29/03—Boring heads
    • B23B29/034—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings
    • B23B29/03403—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable before starting manufacturing
    • B23B29/03421—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable before starting manufacturing by pivoting the tool carriers or by elastic deformation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D77/00—Reaming tools
    • B23D77/02—Reamers with inserted cutting edges
    • B23D77/04—Reamers with inserted cutting edges with cutting edges adjustable to different diameters along the whole cutting length
    • B23D77/042—Reamers with inserted cutting edges with cutting edges adjustable to different diameters along the whole cutting length by means of oblique planes
    • 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
    • Y10T408/83—Tool-support with means to move Tool relative to tool-support
    • Y10T408/85—Tool-support with means to move Tool relative to tool-support to move radially
    • Y10T408/858—Moving means including wedge, screw or cam
    • Y10T408/8583—Moving means including wedge, screw or cam with resiliently urged Tool
    • Y10T408/85843—Resilient Tool or tool-support

Definitions

  • This invention relates to reamers, taps, and such like tools, and particularly pertains to their adaptation for being expanded in diameter.
  • the tool of this invention in substance has a cylindrical bore of uniform diameter and a split or splits lengthwise thereof and a core to fit said bore, which is in innerand outer parts, the outer being a tube of an ex ternal diameter to fit the bore of the tool and having a lengthwise split or splits and of an external taper, and the inner a plug to fit within and by a movement lengthwise of said tube to expand it and through it the.
  • Figure 1 is a central longitudinal section of a reamer other than this invention of the ordinary construction, and of the outer part and a side view of the inner part of the core.
  • Figs. 2, 3, and 4 are sections, lines 2 2, 3 3, and at 4C, respectively, Fig. 1.
  • A is the reamer, having a bore A of uniform diameter andlongitudinal splits'A
  • a B and C are the inner and outer parts of the core.
  • the inner part B is a solid cylindrical plug having a tapering head B and the outer part 0 is a tube having an internal diameter to fit the plug B and its tapering head B lengthwise splits O and a normal external diameter corresponding to the diameter of the bore of the tool.
  • 0 is a collar fixed on one end of the tube C and having splits 0 across its edge, so as Unscrewing the screw-nut releases the core and tool to contraction, respectively.
  • An expansible tool having a boreA of uniform diameter and lengthwise split or splits A in combination with a core fitting said bore, made in parts B O, outer and inner, the outer O a tube having lengthwise split or splits C and an internal taper, and the inner B a plug of an external taper fitting and adapted to be moved lengthwise in the tube O, substantially as described, for the purpose specified.
  • An expansible tool having a bore A of uniform diameter and lengthwise split or splits A in combination with a core fitting said bore, made in parts B A, outer and inner, the outer O a tube havinglengthwise split or splits G a split collar 0 held thereon, and an internal taper, and the inner B a plug of an external taper fitting and-adapted to be moved lengthwise, and with a screw-nut D- screwed onto and havingbearing against said collar O of said core-tube O, substantially as described, for the purpose specified.

Description

(No Model.)
T. LONG. v EXPANSIBLB REAMBR.
No. 417,860. Patented Dee. 1'7, 1889.
. INVENTOR M e m 5 a .n v U Q "II $7! MT. 7 M w g mm w Q M l mt e e W w 8 9w T v WITNESSES;
UNITED STATES PATENT OFFICE.
THOMAS LONG, OF BOSTON, MASSACHUSETTS.
EXPANSIBLE REAM ER.
' SPECIFICATION forming part of Letters Patent No. 417,360, dated December 17, 1889.
, Application filed July 2, 1889- Serial No. 316,363. (No model.)
T aZZ whom it may concern.-
Be it known that I, THOMAS LONG, a citizen of the United States of America, and a resident of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Expansible Reamers, of which the following is a full, clear, and exact description.
This invention relates to reamers, taps, and such like tools, and particularly pertains to their adaptation for being expanded in diameter.
The tool of this invention in substance has a cylindrical bore of uniform diameter and a split or splits lengthwise thereof and a core to fit said bore, which is in innerand outer parts, the outer being a tube of an ex ternal diameter to fit the bore of the tool and having a lengthwise split or splits and of an external taper, and the inner a plug to fit within and by a movement lengthwise of said tube to expand it and through it the.
tool containing it in its said bore, all substantially as hereinafter described.
In the drawings forming part of this specification the invention is illustrated in connection with a reamer, and Figure 1 is a central longitudinal section of a reamer other than this invention of the ordinary construction, and of the outer part and a side view of the inner part of the core. Figs. 2, 3, and 4 are sections, lines 2 2, 3 3, and at 4C, respectively, Fig. 1.
In the drawings, A is the reamer, having a bore A of uniform diameter andlongitudinal splits'A A B and C are the inner and outer parts of the core. The inner part B is a solid cylindrical plug having a tapering head B and the outer part 0 is a tube having an internal diameter to fit the plug B and its tapering head B lengthwise splits O and a normal external diameter corresponding to the diameter of the bore of the tool.
0 is a collar fixed on one end of the tube C and having splits 0 across its edge, so as Unscrewing the screw-nut releases the core and tool to contraction, respectively.
Having thus described my invention, what I claim, and desire to secure by Letters Patent, is
1. An expansible tool having a boreA of uniform diameter and lengthwise split or splits A in combination with a core fitting said bore, made in parts B O, outer and inner, the outer O a tube having lengthwise split or splits C and an internal taper, and the inner B a plug of an external taper fitting and adapted to be moved lengthwise in the tube O, substantially as described, for the purpose specified.
2. An expansible tool having a bore A of uniform diameter and lengthwise split or splits A in combination with a core fitting said bore, made in parts B A, outer and inner, the outer O a tube havinglengthwise split or splits G a split collar 0 held thereon, and an internal taper, and the inner B a plug of an external taper fitting and-adapted to be moved lengthwise, and with a screw-nut D- screwed onto and havingbearing against said collar O of said core-tube O, substantially as described, for the purpose specified.
In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.
THOMAS LONG.
Witnesses:
ALBERT W. BROWN, FRANCES M. BROWN.
US417360D Expansible reamer Expired - Lifetime US417360A (en)

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