US170768A - Improvement in screw-cutting dies - Google Patents

Improvement in screw-cutting dies Download PDF

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Publication number
US170768A
US170768A US170768DA US170768A US 170768 A US170768 A US 170768A US 170768D A US170768D A US 170768DA US 170768 A US170768 A US 170768A
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United States
Prior art keywords
die
screw
pin
improvement
cutting dies
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Expired - Lifetime
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    • 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
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G5/00—Thread-cutting tools; Die-heads
    • B23G5/08—Thread-cutting tools; Die-heads with means for adjustment
    • B23G5/083—Adjustable dies
    • 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
    • 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
    • Y10T408/8593—Wedge moving perpendicular to tool-axis

Definitions

  • Figure 1 represents a front view, partly in section, of my improved die
  • Fig. 2 is a side view of the same.
  • My invention relates to an improved die that may be readily adjusted and placed directly in the die-stock, dispensing with a number of set-screws and die holders, and reducing thereby the cost of the dies considerably.
  • the invention consists of a die which has a spreading-pin inserted at the split part of the circumference, and an adjusting-screw passing through the edge of the die to hear at right angles on the pin.
  • A represents a die of circular shape, which is split at the point of its circumference diametrically opposite to the part which is recessed close up to the circumference, to impart spring action to the split ends of the die.
  • a spreading-pin, B of cylindrical or other shape, is fitted into corresponding recesses of the split ends of the die, and acted upon by a set-screw, O, that passes at right angles to the axis of pin B through a perforation obliquely to the circumference of one of the split ends.
  • the adjustment of the set-screw G on the pin spreads the die, while the release of the screw causes, by the spring action of the die, the tight closing of the split ends on the spreading-pin.
  • the die may thus be adjusted and put into the stock without requiring a die-holder for every die.
  • the one adjusting-screw and pin takes the place of four set-screws heretofore used, so that the number of screws and die-holders is reduced, and thereby the cost for die-stock and die diminished.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Description

V. J. REECE.
SCREW-CUTTING DIES. N0.170,76 8. Patented Dec. 7,1875.
UNITED STATES PATENT OFFICE.
VIRGINIUS J. BEEGE, OF GREENFIELD, MASSACHUSETTS.
' IMPROVEMENT IN SCREW-CUTTING DIES.
Specification forming part of Letters Patent No. 170,768, dated December 7, 1875; application filed 7 November 6, 1875.
To all whom it may concern:
Be it known that I, VIRGINIUS J. Renee, of Greenfield, in the county of Franklin and State of Massachusetts, have invented a new and Improved Die, of which the following is a specification:
In the accompanying drawing, Figure 1 represents a front view, partly in section, of my improved die, and Fig. 2 is a side view of the same.
Similar letters of reference indicate corresponding parts.
My invention relates to an improved die that may be readily adjusted and placed directly in the die-stock, dispensing with a number of set-screws and die holders, and reducing thereby the cost of the dies considerably.
The invention consists of a die which has a spreading-pin inserted at the split part of the circumference, and an adjusting-screw passing through the edge of the die to hear at right angles on the pin.
In the drawing, A represents a die of circular shape, which is split at the point of its circumference diametrically opposite to the part which is recessed close up to the circumference, to impart spring action to the split ends of the die. A spreading-pin, B, of cylindrical or other shape, is fitted into corresponding recesses of the split ends of the die, and acted upon by a set-screw, O, that passes at right angles to the axis of pin B through a perforation obliquely to the circumference of one of the split ends.
The adjustment of the set-screw G on the pin spreads the die, while the release of the screw causes, by the spring action of the die, the tight closing of the split ends on the spreading-pin. The die may thus be adjusted and put into the stock without requiring a die-holder for every die.
The one adjusting-screw and pin takes the place of four set-screws heretofore used, so that the number of screws and die-holders is reduced, and thereby the cost for die-stock and die diminished.
Having thus described my invention, I claim as new and desire to secure by Letters Patent A die made with split spring ends, set by spreading-pin and adjusting-screw passing at right angles to pin through one of the split ends of the die, substantially as and for the purpose set forth.
VIRGINIUS J. REEOE.
Witnesses:
LOUIS M. GHILDS, CHAS. N. PAYNE.
US170768D Improvement in screw-cutting dies Expired - Lifetime US170768A (en)

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US170768A true US170768A (en) 1875-12-07

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040134095A1 (en) * 2002-08-05 2004-07-15 Bray Walter Thomas Slipper insole, slipper, and method for manufacturing a slipper
US20100281700A1 (en) * 2009-05-05 2010-11-11 San-Kuei Wu Thread Ring Gauge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040134095A1 (en) * 2002-08-05 2004-07-15 Bray Walter Thomas Slipper insole, slipper, and method for manufacturing a slipper
US20100281700A1 (en) * 2009-05-05 2010-11-11 San-Kuei Wu Thread Ring Gauge
US7918031B2 (en) * 2009-05-05 2011-04-05 Chuan Hong Precision Tool Manufacturing Co., Ltd. Thread ring gauge

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