US167035A - Improvement in screw-cutting dies - Google Patents

Improvement in screw-cutting dies Download PDF

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Publication number
US167035A
US167035A US167035DA US167035A US 167035 A US167035 A US 167035A US 167035D A US167035D A US 167035DA US 167035 A US167035 A US 167035A
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United States
Prior art keywords
screw
improvement
chasers
cutting dies
fitted
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Expired - Lifetime
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    • 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
    • B23G5/10—Die-heads
    • 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
    • B23B29/03407—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable before starting manufacturing by means of screws and nuts
    • 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
    • Y10T408/8598—Screw extending perpendicular to tool-axis

Definitions

  • the chasers are fitted in sockets of a solid die, tapered so that the chasers are held by a binding-screw at one side of each, and two of the chasers are provided with an adjusting-screw to set them up toward the others as the chasers wear away.
  • the arrangement atfords a simple means of holding, and detaching and attaching chasers for changing from one. size of thread to another, and of setting them up as they wear.
  • Figure 1 is a plan view of my improved die, with a part in horizontal section, and Fig. 2 is a transverse section of Fig. 1 on line a; :0.
  • A is the solid die-stock, in which thechasers B are fitted in slots tapered in the transverse direction of the chasers, as shown in Fig. 2, so that they are held in place by a screw, 0, screwing down against the wide side, being a simple arrangement, very cheap to construct and easy to change.
  • Two of the chasers have an adjusting-screw, E, for setting them up to compensate for wear.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Push-Button Switches (AREA)

Description

G, B. STET'SDN.
Screw-Cutting Die.
Patented Aug. 24,1875.
mmm
- ATTORNEYS.
N. PETERS. know-Emmi":
UNITED STATES PATENT QFFIGE.
GEORGE E. STETSON, OF NEW BEDFORD, MASSACHUSETTS.
IMPROVEMENT IN SCREW-CUTTING DIES.
Specification forming part of Letters Patent No. 167,035, dated August 24, 1875 application filed August 6, 1875.
To all whom it may concern Be it known that I, GEORGE R. STETsoN, of New Bedford, in the county of Bristol and State of Massachusetts, have invented a new and Improved Screw-Cutting Die, of which the following is a specification:
In this improvement the chasersare fitted in sockets of a solid die, tapered so that the chasers are held by a binding-screw at one side of each, and two of the chasers are provided with an adjusting-screw to set them up toward the others as the chasers wear away. The arrangement atfords a simple means of holding, and detaching and attaching chasers for changing from one. size of thread to another, and of setting them up as they wear.
Figure 1 is a plan view of my improved die, with a part in horizontal section, and Fig. 2 is a transverse section of Fig. 1 on line a; :0.
Similar letters of reference indicate corresponding parts.
A is the solid die-stock, in which thechasers B are fitted in slots tapered in the transverse direction of the chasers, as shown in Fig. 2, so that they are held in place by a screw, 0, screwing down against the wide side, being a simple arrangement, very cheap to construct and easy to change. Two of the chasers have an adjusting-screw, E, for setting them up to compensate for wear.
Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. The chasers B fitted in tapered slots in the solid die-stock A, and secured by a binding-screw, O, in the manner described.
2. The combination, with the chaser B fitted in a tapered slot and secured by a binding-screw, G, of an adjusting-screw, E, substantially as specified.
GEORGE R. STETSON. Witnesses:
FRANCIS B. GREENE, ALBERT B. COLLINS.
US167035D Improvement in screw-cutting dies Expired - Lifetime US167035A (en)

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US167035A true US167035A (en) 1875-08-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2517062A (en) * 1945-02-17 1950-08-01 Richard W Vosper Die head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2517062A (en) * 1945-02-17 1950-08-01 Richard W Vosper Die head

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