US786990A - Screw-cutting tool. - Google Patents

Screw-cutting tool. Download PDF

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Publication number
US786990A
US786990A US20484704A US1904204847A US786990A US 786990 A US786990 A US 786990A US 20484704 A US20484704 A US 20484704A US 1904204847 A US1904204847 A US 1904204847A US 786990 A US786990 A US 786990A
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US
United States
Prior art keywords
screw
chasers
notches
cutting tool
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
US20484704A
Inventor
Charles W Phillips
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.)
EUGENE F JEWELL
Original Assignee
EUGENE F JEWELL
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 EUGENE F JEWELL filed Critical EUGENE F JEWELL
Priority to US20484704A priority Critical patent/US786990A/en
Application granted granted Critical
Publication of US786990A publication Critical patent/US786990A/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
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/007—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor for internal turning
    • 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
    • Y10T408/885—Tool-support with means to permit positioning of the Tool relative to support including tool-holding clamp and clamp actuator

Definitions

  • My invention relates to improvements in tools for cutting screw-threads in pipes, pipefittings, and the like; and it consists in certain novel features of construction, combination, and arrangement of parts hereinafter fully described and claimed.
  • the objects of my invention are to rovide a simple and effective means for ho ding re movable cutters or chasers in a tap, reamer, or similar tool-head, to permit them to be readily and accurately adjusted as they wear down, and to ermit them to be quickly removed and rep laced by new ones when worn out.
  • Figure 1 is a perspective view of my improved screwcutting tool.
  • Fig. 2 is a transverse sectional view through the same, taken on the line 2 2 ofFig. 1.
  • Fig. 3 is a detail sectional view taken on the line 3 3 of Fig. 2.
  • Fig. 4 is a side elevation of one of the cutters or chasers.
  • Fig. 5 is an end elevation of the same.
  • Fig. 6 is a top plan view of one of the clampingblocks.
  • Fig. 7 is a bottom plan view of the same.
  • 1 denotes a frusto-conical body or head tapering from its rear to its front end and formed at its rear end with a reduced end or shank 2.
  • Said head 1 is formed with a radially-dis- 4, Each alternate rib 4 is formed with a recess 5, which opens into two adjacent grooves 3.
  • Said grooves 3 are adapted to receive cutters or chasers formed upon their outer projecting faces with screw-cutting teeth 7 and upon their side face which is disposed adjacent. to said recess 5 with notches 8.
  • the recesses 5 are adapted to receive segmentalshaped clamping-blocks 9, which are formed upon opposite sides with notches 10, adapted to engage said notches 8 upon two adjacent cutters or chasers to clamp them in said grooves 3 andto hold them at any adjusted position, as will be readily understood.
  • Said clamping-blocks maybe secured in said recess in any suitable manner, but preferably by screws 11, which pass through openings in said block and into screw-threaded recesses 12, formed in the head 1, as shown in Fig. 2 of thedrawings.
  • the heads of said screws 11' enter enlarged portions of the apertures in said blocks and lie flush with the outer surface of said head 1.
  • said blocks having notches upon their opposite faces to engage the notches in two adjacent chasers and screws passed through said blocks and into said head to secure the block in the recesses and the chasers in the longitudinal grooves whereby the chascrs are longitudinally adjustable, substantially as described.

Description

No. 786,990. PATENTED APR. 11, 1905.
' G. W. PHILLIPS.
SCREW CUTTING TOOL.
APPLIOATION FILED APR. 25, 1904.
UNITED STATES Patented April 11, 1905.
PATENT OFFICE.
CHARLES W. PHILLIPS, OF MILWAUKEE, WISCONSIN, ASSIGNOR OF ONE- HALF TO EUGENE F. JEWELL, OF MILWAUKEE, WISCONSIN.
SCREW-CUTTING TOOL SPECIFICATION forming part of Letters Patent N0. 786,990, dated April 11, 1905.
Application filed Apri1 26, 1904. Serial No. 204-847.
.To (LZZ whom it may concern.-
Be it known that I, CHARLEs W. PHILLIPS, a citizen of the United States, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Screw-Cutting Tools; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
My invention relates to improvements in tools for cutting screw-threads in pipes, pipefittings, and the like; and it consists in certain novel features of construction, combination, and arrangement of parts hereinafter fully described and claimed.
The objects of my invention are to rovide a simple and effective means for ho ding re movable cutters or chasers in a tap, reamer, or similar tool-head, to permit them to be readily and accurately adjusted as they wear down, and to ermit them to be quickly removed and rep laced by new ones when worn out.
With these and other objects in view the invention consists of certain novel features of of parts, as will be more fully described, and
particularly pointed out in the appended claim.
In the accompanying drawings, Figure 1 is a perspective view of my improved screwcutting tool. Fig. 2 is a transverse sectional view through the same, taken on the line 2 2 ofFig. 1. Fig. 3 is a detail sectional view taken on the line 3 3 of Fig. 2. Fig. 4 is a side elevation of one of the cutters or chasers. Fig. 5 is an end elevation of the same. Fig. 6 is a top plan view of one of the clampingblocks. Fig. 7 is a bottom plan view of the same.
Referring to the drawings by numeral, 1 denotes a frusto-conical body or head tapering from its rear to its front end and formed at its rear end with a reduced end or shank 2.
' Said head 1 is formed with a radially-dis- 4, Each alternate rib 4 is formed with a recess 5, which opens into two adjacent grooves 3. Said grooves 3 are adapted to receive cutters or chasers formed upon their outer projecting faces with screw-cutting teeth 7 and upon their side face which is disposed adjacent. to said recess 5 with notches 8. The recesses 5 are adapted to receive segmentalshaped clamping-blocks 9, which are formed upon opposite sides with notches 10, adapted to engage said notches 8 upon two adjacent cutters or chasers to clamp them in said grooves 3 andto hold them at any adjusted position, as will be readily understood. Said clamping-blocks maybe secured in said recess in any suitable manner, but preferably by screws 11, which pass through openings in said block and into screw-threaded recesses 12, formed in the head 1, as shown in Fig. 2 of thedrawings. The heads of said screws 11' enter enlarged portions of the apertures in said blocks and lie flush with the outer surface of said head 1. i
The use'and operation of the tool will be readily seen. After the cutters or chasers have been placed in the grooves 3 the clamping-blocks 9 are inserted between them in the recess 5, and the screws 11 are then tightened to clamp said cutters or chasers in position.
The engagement of the notches of the clamping-block with the notches 8 on two adjacent cuttersor chasers will permit the latter to be quickly and accurately adjusted as their cutting-teeth wear away.
ciple or sacrificing any of the advantages of I this invention.
Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is p In a combined reamer and tap, the combination of a tapering head having a series of longitudinal grooves forming intermediate segmental ribs and having transverse recesses formed in each alternate one of said ribs, said recesses communicating with said grooves, chasers seated in said grooves and having screw-cutting teeth upon their outer faces and notches in their side faces adjacent to said recesses, said notches extending from the lower edge of the chasers to near the cutting-teeth, clamping-blocks in said recesses,
said blocks having notches upon their opposite faces to engage the notches in two adjacent chasers and screws passed through said blocks and into said head to secure the block in the recesses and the chasers in the longitudinal grooves whereby the chascrs are longitudinally adjustable, substantially as described.
In testimony whereof I have hereunto set my hand in presence of two subscribing \vitnesses.
CHARLES WEPHILLIPS. Witnesses:
EUGENE JEWELL, Jon E. LIESENFELD.
US20484704A 1904-04-25 1904-04-25 Screw-cutting tool. Expired - Lifetime US786990A (en)

Priority Applications (1)

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US20484704A US786990A (en) 1904-04-25 1904-04-25 Screw-cutting tool.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20484704A US786990A (en) 1904-04-25 1904-04-25 Screw-cutting tool.

Publications (1)

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US786990A true US786990A (en) 1905-04-11

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4547102A (en) * 1981-11-27 1985-10-15 Cogsdill Tool Products, Inc. Reamer with angled blade and full length clamp
USRE34054E (en) * 1981-11-27 1992-09-08 Cogsdill Tool Products, Inc. Reamer with angled blade and full length clamp and method of assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4547102A (en) * 1981-11-27 1985-10-15 Cogsdill Tool Products, Inc. Reamer with angled blade and full length clamp
USRE34054E (en) * 1981-11-27 1992-09-08 Cogsdill Tool Products, Inc. Reamer with angled blade and full length clamp and method of assembly

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