US655600A - Expansible boring-bar. - Google Patents

Expansible boring-bar. Download PDF

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Publication number
US655600A
US655600A US73593699A US1899735936A US655600A US 655600 A US655600 A US 655600A US 73593699 A US73593699 A US 73593699A US 1899735936 A US1899735936 A US 1899735936A US 655600 A US655600 A US 655600A
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United States
Prior art keywords
boring
cutters
bar
screw
expansible
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
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US73593699A
Inventor
John Brown
Thomas Haddock
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Individual
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Priority to US73593699A priority Critical patent/US655600A/en
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Publication of US655600A publication Critical patent/US655600A/en
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/10—Bits for countersinking
    • B23B51/101—Deburring tools
    • 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
    • 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
    • Y10T408/8588—Axially slidable moving-means
    • Y10T408/85892—Screw driven wedge or cam

Definitions

  • This invention refers to a new or improved expansive boring-bar and in apparatus connected therewith, and is applicable for lathes, horizontal andvertical boring-machines,drill ing-machines, and the like; and it consists in providing means whereby the adjustable metallic cutters may be regulated to the greatest nicety with a minimum of labor.
  • This we carry into effect by means of a bar provided with openings or slots in which are disposed suitable cutters, which can be adjusted or regulated and expanded as desired by means of a cone on the end of an operating-screw, the latter being provided with means forlocking the same.
  • the cutters are provided with pins or projections which t in slots to prevent turning and maintain a uniform moving position of the said cutters.
  • Springs are provided for the purpose of contracting or moving the cutters in an inward direction.
  • Figure l is a longitudinal side view of our new or improved expansive boring-bar for vertical boring and drilling machines;
  • Fig. 2, a longitudinal plan of Fig. l;
  • Fig. 3 a transverse section through line A B in Fig. l;
  • Fig. 4 an outside end View of Fig. 2;
  • Fig. 5, alongitudinal side view of our invention applied to a boring-bar applicable for lathes, horizontal and vertical boring-ma chines, and the like;
  • Fig. 6, a longitudinal plan of Fig. 5, and
  • Fig. 7 a transverse section through line C D in Fig. 5.
  • Fig. 8 is a detail view of the key or spanner.
  • E represents a boring-bar; G, cutters; H, cone; I, operating-screw; J, spring for contracting or moving cutters in an inward di.
  • the boring-bar E is provided with openings or slots in which are disposed the cutters G,
  • the cutters G are provided with the pins or projections IWI, connected by means of the spiral spring J for the purpose of contracting or moving the cutters G in an inward direction when the inner edges are released from the setting action of the conical end I-I on the inner end of the operating-screw I. After the cutters G have been set to the desired position, according to the diameter of the hole to be bored, they are secured or locked by the setting-screws L.
  • the boring-bar E for horizontal and vertical boring-machines and the like (shown in Figs.
  • the cone H is mounted in the screw N and is actuated by the screw O for adjusting the cutters G.
  • the screw N is provided with the holes P to allow of the same being operated by means of a specially-formed key or Spanner, as shown in Fig. 8, the prongs R fitting into the holes P in the outer end of the screw N.
  • a boring-bar the combination with a body provided with a transverse opening, of a plurality of cutters movably seated in said opening, each of said cutters provided with a lateral pin moving in a slot, and a spiral spring connected at its opposite ends to said pins and tending to draw the cutters into the transverse opening in the body,an expandingscrew arranged in the body at right angles to the transverse opening therein 'and provided with a conical point which enters between the cut' ters and operates to move the same outwardly in the transverse opening, and setting-screws passing through the body and impinging on the cutters to retain the same in the desired position of adjustment, substantially as described.

Description

No. 655,600. Patented Aug. 7, |900. J. .BROWN & T. HADDUCK.
EXPANSIBLE BORING BAH.
(Application led Nov. 6, 1899.) y(lh' Model.) 2 Sheets-Sheet l.-v
no. 655,600. Patented Aug. 7, `mou..
y.|. Bnown & T. HAnnocK.
EXPANSIBLE BORING BAB.
(Application tiled Nov. 8, 1899.) (No Model.) 2 Sheets-Sheet 2.
I J@ i jf w azi/3^@ UNITED STATES PATENT OFFICE.
JOIIN BROVN AND THOMAS HADDOOK, OF BOLTON, ENGLAND.
EXPANSIBLE BORING-BAR.
SPECIFICATION fdrming part of Letters Patent No. 655,600, dated August '7, 1900.
p Application led November 6, 1899. Serial No. 735,936." (No model.)
To all whom, t mayconcern:
Be itknown that we, JOHN BROWN, machinist, of S Hartley street,and THOMAS I-IADDOCK, litter, 0f SO Kay street, Bolton, in the county of Lancaster, England, subjects of the Queen of Great Britain, have invented certain new and useful Improvements in Expansive Boring-Bars, of which the following is a specification.
This invention refers to a new or improved expansive boring-bar and in apparatus connected therewith, and is applicable for lathes, horizontal andvertical boring-machines,drill ing-machines, and the like; and it consists in providing means whereby the adjustable metallic cutters may be regulated to the greatest nicety with a minimum of labor. This we carry into effect by means of a bar provided with openings or slots in which are disposed suitable cutters, which can be adjusted or regulated and expanded as desired by means of a cone on the end of an operating-screw, the latter being provided with means forlocking the same. The cutters are provided with pins or projections which t in slots to prevent turning and maintain a uniform moving position of the said cutters. Springs are provided for the purpose of contracting or moving the cutters in an inward direction.
In the drawings, Figure l is a longitudinal side view of our new or improved expansive boring-bar for vertical boring and drilling machines; Fig. 2, a longitudinal plan of Fig. l; Fig. 3, a transverse section through line A B in Fig. l; Fig. 4, an outside end View of Fig. 2; Fig. 5, alongitudinal side view of our invention applied to a boring-bar applicable for lathes, horizontal and vertical boring-ma chines, and the like; Fig. 6, a longitudinal plan of Fig. 5, and Fig. 7 a transverse section through line C D in Fig. 5. Fig. 8 is a detail view of the key or spanner.
, In all the figures the same letters are employed to indicate corresponding parts.
E represents a boring-bar; G, cutters; H, cone; I, operating-screw; J, spring for contracting or moving cutters in an inward di.
rection; K, nut for locking operating-screw,
and L setting or locking screws for cutters.
The boring-bar E is provided with openings or slots in which are disposed the cutters G,
which are adjusted er regulated and expanded as desired by means of the cone H on the end of the operating-screw I, the latter being locked in position by means of the nut K. The cutters G are provided with the pins or projections IWI, connected by means of the spiral spring J for the purpose of contracting or moving the cutters G in an inward direction when the inner edges are released from the setting action of the conical end I-I on the inner end of the operating-screw I. After the cutters G have been set to the desired position, according to the diameter of the hole to be bored, they are secured or locked by the setting-screws L. In the boring-bar E for horizontal and vertical boring-machines and the like (shown in Figs. 5, 6, and 7) the cone H is mounted in the screw N and is actuated by the screw O for adjusting the cutters G. `The screw N is provided with the holes P to allow of the same being operated by means of a specially-formed key or Spanner, as shown in Fig. 8, the prongs R fitting into the holes P in the outer end of the screw N.
In a boring-bar,the combination with a body provided with a transverse opening, of a plurality of cutters movably seated in said opening, each of said cutters provided with a lateral pin moving in a slot, and a spiral spring connected at its opposite ends to said pins and tending to draw the cutters into the transverse opening in the body,an expandingscrew arranged in the body at right angles to the transverse opening therein 'and provided with a conical point which enters between the cut' ters and operates to move the same outwardly in the transverse opening, and setting-screws passing through the body and impinging on the cutters to retain the same in the desired position of adjustment, substantially as described. In testimony whereof we have hereunto set our hands in presence of two subscribing wit nesses.
JOHN BROIVN. THOMAS I-IADDOCK.
Witnesses:
EDMUND CHADwIcK, JAS. STEWART BEoADFooT.
US73593699A 1899-11-06 1899-11-06 Expansible boring-bar. Expired - Lifetime US655600A (en)

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US73593699A US655600A (en) 1899-11-06 1899-11-06 Expansible boring-bar.

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3738767A (en) * 1971-07-15 1973-06-12 Erickson Tool Co Adjustable boring bar
US4271849A (en) * 1978-08-04 1981-06-09 Orthoplant Orthopadische Implantate Gmbh & Co. Apparatus for producing relief grooves in pan-shaped bones
US4289431A (en) * 1977-05-25 1981-09-15 Wilhelm Hegenscheidt Gmbh Boring tool with floating blades
US4589309A (en) * 1983-10-21 1986-05-20 Westinghouse Electric Corp. Precision internal tube cutter
US4621549A (en) * 1983-10-21 1986-11-11 Westinghouse Electric Corp. Precision internal tube cutter
US20040228695A1 (en) * 2003-01-01 2004-11-18 Clauson Luke W. Methods and devices for adjusting the shape of a rotary bit
US20100031511A1 (en) * 2005-10-06 2010-02-11 Roderic Henry Vince Pipe Cutter

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3738767A (en) * 1971-07-15 1973-06-12 Erickson Tool Co Adjustable boring bar
US4289431A (en) * 1977-05-25 1981-09-15 Wilhelm Hegenscheidt Gmbh Boring tool with floating blades
US4271849A (en) * 1978-08-04 1981-06-09 Orthoplant Orthopadische Implantate Gmbh & Co. Apparatus for producing relief grooves in pan-shaped bones
US4589309A (en) * 1983-10-21 1986-05-20 Westinghouse Electric Corp. Precision internal tube cutter
US4621549A (en) * 1983-10-21 1986-11-11 Westinghouse Electric Corp. Precision internal tube cutter
US20040228695A1 (en) * 2003-01-01 2004-11-18 Clauson Luke W. Methods and devices for adjusting the shape of a rotary bit
US20100031511A1 (en) * 2005-10-06 2010-02-11 Roderic Henry Vince Pipe Cutter

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