US78520A - Chables h - Google Patents

Chables h Download PDF

Info

Publication number
US78520A
US78520A US78520DA US78520A US 78520 A US78520 A US 78520A US 78520D A US78520D A US 78520DA US 78520 A US78520 A US 78520A
Authority
US
United States
Prior art keywords
tool
bar
tapering
cutting
sleeve
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
Publication date
Application granted granted Critical
Publication of US78520A publication Critical patent/US78520A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
    • B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
    • 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
    • Y10T407/00—Cutters, for shaping
    • Y10T407/22—Cutters, for shaping including holder having seat for inserted tool
    • Y10T407/2222—Tool adjustable relative to holder
    • Y10T407/225—Resiliently biased tool clamping jaw
    • 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
    • Y10T407/00—Cutters, for shaping
    • Y10T407/22—Cutters, for shaping including holder having seat for inserted tool
    • Y10T407/2222—Tool adjustable relative to holder
    • Y10T407/2252—Rectilinearly
    • Y10T407/2256—Rectilinearly including wedge clamp element

Definitions

  • Figure 3 is a side elevation of its chuck or tool-holding thirnble,"tov be hereinafter referred to.
  • My invention may, in some respects, be considered as a combined tool and tool-holder, and relates to means for applying the tool of a metal-turning or engine lathe in such man-nei' as to obviate the necessity ofreforging the tool, which, under the present fo'rm of construction, must ,be done at short intervals of time.
  • the invention consists in a metallic bar, having its inner end enlarged and recessed, and carrying a tapering or double cylindre-conical tube, the tapering portions ofsuch tube being split inthe manner of ordinary small drill-chucks used in most machine-shops, the bore of such cylinder being square or rectangular, and carrying a cutting-tool or bar, constituting the turning-tool, substantially as hereinafter explained.
  • A denotes a metallic bar, of suitable size and shape, according to the proportions of the piece of metal to be turned or reduced, this bar A, when in use, being inserted in a horizontal position within the slide-rest of the lathe, in the same manner that the ordinary turning-tool is now applied.
  • this ordinary Atool has its' cutting portion forged upon one end of it, as shown in iig. 4 of the drawings, and. as often as the cutting-tool requires renewing it must be reforged.
  • the plug d is'split u-pon each end, after the manner of ordinary small drill-chncks,or so that when it is compressed within or between the bores of the bar A and the screw c, it shall take a firm gripe of the cuttingtoolf, and retain it rmly in position while performing its work.
  • Another advantage of my invention is the fact that whereas, in the old mode of forging the tool, a much larger piece of steel is. wasted, as it :is gradually reforged and wornout, and a much llarger number are also wasted than in my mode, it will be seen that a. great economy of metal is effected.

Description

@auch gisten gstrnt @,f,
CHARLES H. FOWLER, OF ROXBURY, MASSACHUSETTS.
Letters Patent No. 78,520, dated June 2, 1868.
IMPROVEMENT IN LATER-TOOL HOLDER.
TO ALL 'IO WHOM THESE PRESENTS SHALL COME;
Beit known 'that I, CHARLES H. FowLnn, of Roxbury, in the county of Norfolk, and State of Ma'ssachw setts, havev invented a newand useful Improvement in Cutting-Tools for Machinists Lathes; and do hereby declare the following to be a full, clear, and estactdescription thereof,`due reference beinghad to the accompanying drawings, making part of this specification, and in whichi Figure 1 is a longitudinal section, and
IFigure 2a horizontal section of my invention.
Figure 3 is a side elevation of its chuck or tool-holding thirnble,"tov be hereinafter referred to.
My invention may, in some respects, be considered as a combined tool and tool-holder, and relates to means for applying the tool of a metal-turning or engine lathe in such man-nei' as to obviate the necessity ofreforging the tool, which, under the present fo'rm of construction, must ,be done at short intervals of time.
The invention consists in a metallic bar, having its inner end enlarged and recessed, and carrying a tapering or double cylindre-conical tube, the tapering portions ofsuch tube being split inthe manner of ordinary small drill-chucks used in most machine-shops, the bore of such cylinder being square or rectangular, and carrying a cutting-tool or bar, constituting the turning-tool, substantially as hereinafter explained.
In the drawings above mentioned, A denotes a metallic bar, of suitable size and shape, according to the proportions of the piece of metal to be turned or reduced, this bar A, when in use, being inserted in a horizontal position within the slide-rest of the lathe, in the same manner that the ordinary turning-tool is now applied.
As usually constructed, this ordinary Atool has its' cutting portion forged upon one end of it, as shown in iig. 4 of the drawings, and. as often as the cutting-tool requires renewing it must be reforged.
In carrying out my invention, I form, in the inner end of the bar A, a vertical cylindrical passage or opening, a, ,the upper portion of which is contracted in diameter, and tapering, the lower portion thereof being formed with a female screw, 6,'i'nto which is screwed a male screw, formed upon the circumference of a sleeve or hollow nut, c,-the upper portion of the bore of this sleeve for about one-half its length being tapering, but in an inverse direction from that ofthe passage abefore mentioned that is, the passage aiscontracted toward its'top and the bore of the sleeve c toward its bottom, this being for the purpose of receiving between them a hollow plug or chucvk-g d, which is` a cylindrical tube, tapering'at each end, and having a rectangular bore, e, for receiving a-steel rodhf, which constitutes the cutting-tool of the device.
-The plug d is'split u-pon each end, after the manner of ordinary small drill-chncks,or so that when it is compressed within or between the bores of the bar A and the screw c, it shall take a firm gripe of the cuttingtoolf, and retain it rmly in position while performing its work.
As the tool isreduced or worn down, the screw-sleeve or hollow nut c is to beloosened, and the tool raised to the desired height. v y
By means of my invention above described, frequent reforging of the tool is avoided, this economy of time being directly dependent upon the length of the cutting-bar employed.
Another advantage of my invention is the fact that whereas, in the old mode of forging the tool, a much larger piece of steel is. wasted, as it :is gradually reforged and wornout, and a much llarger number are also wasted than in my mode, it will be seen that a. great economy of metal is effected.
I claim, as an improved tool-holding device for metal-turning lathes, Jvc., the combination and arrangement of the bar A, screw-sleeve or'hollow nut c, und double tapering tube d, the whole being arranged and operating as herein shown and described. i
CHARLES. H. FOWLER.
Witnesses FRED. CURTIS, EDWARD GRIFFITH.
US78520D Chables h Expired - Lifetime US78520A (en)

Publications (1)

Publication Number Publication Date
US78520A true US78520A (en) 1868-06-02

Family

ID=2148021

Family Applications (1)

Application Number Title Priority Date Filing Date
US78520D Expired - Lifetime US78520A (en) Chables h

Country Status (1)

Country Link
US (1) US78520A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4111587A (en) * 1977-06-10 1978-09-05 International Patent Transactions Company Limited Tool holder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4111587A (en) * 1977-06-10 1978-09-05 International Patent Transactions Company Limited Tool holder

Similar Documents

Publication Publication Date Title
US260314A (en) parks
US78520A (en) Chables h
US797820A (en) Tool-holder.
US339544A (en) Simon peter
US85329A (en) Charles h
US93580A (en) Improved tool-holder
US1125170A (en) Interchangeable-boring-bar holder.
US402747A (en) Die-stock
US1314911A (en) Tool-holdeb
US643713A (en) Boring attachment for metal-working lathes.
US64494A (en) Edwin w
US74437A (en) Amos b
US327343A (en) stevens
US535440A (en) James armstrong
US1256462A (en) Boring-tool holder.
US641997A (en) Tool-holder.
US667735A (en) Tool-holder.
US78387A (en) Island
US378584A (en) Ceqmee
US88030A (en) Improvement in bung-cutter
US1064725A (en) Multiple-tool holder.
US772271A (en) Lathe tool-holder.
US79974A (en) Jacob w
US628707A (en) Lathe tool-holder.
US1281773A (en) Chuck.