US168349A - Improvement in screw-cutting dies - Google Patents

Improvement in screw-cutting dies Download PDF

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US168349A
US168349A US168349DA US168349A US 168349 A US168349 A US 168349A US 168349D A US168349D A US 168349DA US 168349 A US168349 A US 168349A
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Prior art keywords
stock
improvement
screw
cutting dies
cutters
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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
    • B23G5/02—Thread-cutting tools; Die-heads without means for adjustment
    • B23G5/04—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
    • Y10T408/89—Tool or Tool with support
    • Y10T408/904—Tool or Tool with support with pitch-stabilizing ridge
    • 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
    • Y10T408/89—Tool or Tool with support
    • Y10T408/909—Having peripherally spaced cutting edges
    • Y10T408/9098—Having peripherally spaced cutting edges with means to retain Tool to support

Definitions

  • My invention consists in a die-stock in which are adjusted in suitable openings cutters of the form hereinafter described, held in position by means of clamp-rings fitted in channels formed in the faces of the stock,whereby the cutters are firmly held adjusted in the stock, or may be conveniently changed, and cutters of different lengths inserted; or may be inexpensively duplicated or tempered, or be altered in the stock from right to left hand threads.
  • Figure 1 is a plan of a die embodying my invention.
  • Fig. 2 is a cross-section of the same on the line m as, Fig. 1.
  • Fig. 3 is a detached View of the cutter.
  • A is the stock,which is preferably made of iron, case-hardened, and is formed with the central opening f and the radial openings a, as shown, and with the circular channels I), one in each face of the stock, as shown.
  • B B are rings, preferably of the same material as the stock,
  • the cutters G are formed as shown in Fig. 3, adapted to fit closely in the openings at in the stock, and with the cutting-face c projecting into the opening f, and the shank d, which has the channels e formed one on each side, as shown, and corresponding to and of the same depth as the channels b in the stock.
  • the cutters C may be readily adjusted in the openings at, as shown in Fig. l, and held firmly therein in proper position by the clamp-rings B, secured by the bolts or screws, and that they may be conveniently and readily changed, and cutters of different lengths inserted; or may be inexpensively duplicated, or removed and tempered, or be altered in the die from right to left hand threads, or the reverse.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Harvester Elements (AREA)
  • Treatment Of Fiber Materials (AREA)

Description

UNITED STATES PATENT OFFICE.
JIREH. CASE SHERMAN, OF NEW BEDFORD, MASSACHUSETTS.
IMPROVEMENT IN SCREW-CUTTING DIES.
Specification forming part of Letters Patent No. 168,349, dated October 5, 1875; application filed August 4, 1875.
To all whom it may concern:
Be it known that I, JIREH O. SHERMAN, of New Bedford, Bristol county, and State of Massachusetts, have invented an Improved Changeable Die, of which the following is a specification, reference being had to the accom panying drawings forming part hereof.
My invention consists in a die-stock in which are adjusted in suitable openings cutters of the form hereinafter described, held in position by means of clamp-rings fitted in channels formed in the faces of the stock,whereby the cutters are firmly held adjusted in the stock, or may be conveniently changed, and cutters of different lengths inserted; or may be inexpensively duplicated or tempered, or be altered in the stock from right to left hand threads.
Figure 1 is a plan of a die embodying my invention. Fig. 2 is a cross-section of the same on the line m as, Fig. 1. Fig. 3 is a detached View of the cutter.
A is the stock,which is preferably made of iron, case-hardened, and is formed with the central opening f and the radial openings a, as shown, and with the circular channels I), one in each face of the stock, as shown. B B are rings, preferably of the same material as the stock,
arranged to fit snugly in the channels I), as shown, where they are held by the bolts or screws 8. The cutters G are formed as shown in Fig. 3, adapted to fit closely in the openings at in the stock, and with the cutting-face c projecting into the opening f, and the shank d, which has the channels e formed one on each side, as shown, and corresponding to and of the same depth as the channels b in the stock.
Now, it is evident that the cutters C may be readily adjusted in the openings at, as shown in Fig. l, and held firmly therein in proper position by the clamp-rings B, secured by the bolts or screws, and that they may be conveniently and readily changed, and cutters of different lengths inserted; or may be inexpensively duplicated, or removed and tempered, or be altered in the die from right to left hand threads, or the reverse.
What I claim as my invention, and desire to secure by Letters Patent, is
The combination of the die-stock A, provided with the openings (1., channels I), and rings B, and the cutters O, as described.
JIREH CASE SHERMAN.
Witnesses:
H. J. FULLER, J. H. GALLIGAN.
US168349D Improvement in screw-cutting dies Expired - Lifetime US168349A (en)

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