US1965856A - Die stock - Google Patents

Die stock Download PDF

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Publication number
US1965856A
US1965856A US554724A US55472431A US1965856A US 1965856 A US1965856 A US 1965856A US 554724 A US554724 A US 554724A US 55472431 A US55472431 A US 55472431A US 1965856 A US1965856 A US 1965856A
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US
United States
Prior art keywords
die
pipe
stock
guide
opening
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
US554724A
Inventor
Petersen Thorvald
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.)
Reed Manufacturing Co
Original Assignee
Reed Manufacturing Co
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 Reed Manufacturing Co filed Critical Reed Manufacturing Co
Priority to US554724A priority Critical patent/US1965856A/en
Application granted granted Critical
Publication of US1965856A publication Critical patent/US1965856A/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
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G1/00—Thread cutting; Automatic machines specially designed therefor
    • B23G1/22—Machines specially designed for operating on pipes or tubes
    • 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
    • Y10T408/892—Tool or Tool with support with work-engaging structure detachable from cutting edge
    • 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

Definitions

  • Die stocks are usually provided with guides which are intended to center and aline the stock with a pipe on which a thread is to be cut.
  • a burr is formed on the end of the pipe. This burr seldom extends entirely around the pipe, but is sufficient to prevent the passage of the pipe through the guide if a large over-size opening is not provided in the guide.
  • the present invention is designed to permit of the use of a guide with an opening more nearly the size of the pipe than has been practical heretofore.
  • the invention is also directed to an improvement in the guide whereby greater chip clearance is provided so that the stock may readily clear itself of chips.
  • Fig. 1 shows an elevation of the die stock with the cutting die removed.
  • Fig. 2 a section on the line 22 in Fig. 1 with the chaser die in place.
  • Fig. 3 a perspective view of the guide removed.
  • the body of the die stock has an opening 5 extending through it.
  • a guide sleeve 6 has the radially extending plates, or wings '7 fitting the walls of the opening. Two of these plates are of greater length than the other plates and have projections 7a which extend into grooves 8 in the walls of the opening. The projections 7a bottom on the shoulders 9 at the bottom of the grooves 8 and the outer ends of these two plates engage the face of the die so that as the die is locked in place the guide is locked in place.
  • the other two plates 10 merely fit the walls of the opening 5 and have their outer ends at 11 cut away to give a greater freedom of chip movement.
  • the sleeve 6 is also notched at 12, these notches being directly in register with chip openings 13 between chasers 14 of the die.
  • the inner surface of the sleeve 6 has a coarse thread 15 which is adapted to receive a burr 16 at the end of the pipe. enter the burr in the thread and by rotating the die carry the pipe through the guide tube. In this way a reasonably close fit can be made between the opening of the guide sleeve 6 and the pipe and thus the pipe is not only centered with the chaser die, but also very closely alined and thus assures a thread practically in line with the pipe.
  • a die stock In a die stock, the combination of a body; a die mounted in the body; and a pipe guide having a guide opening concentric with the die, said opening being threaded to permit the introduction of a burred end of a pipe to be threaded.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Table Equipment (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Description

July 10, 1934. T. PETERSEN I 1,965,856
DIE STOCK Filed Aug. 3, 1931 INVENTOR.
' ATTORNEYS.
Patented July 10, 1934 UNITED STATES PATENT OFFICE DIE STOCK ration of Pennsylvania Application August 3, 1931, Serial No. 554,724
1 Claim.
Die stocks are usually provided with guides which are intended to center and aline the stock with a pipe on which a thread is to be cut. With some types of cutting-off tools a burr is formed on the end of the pipe. This burr seldom extends entirely around the pipe, but is sufficient to prevent the passage of the pipe through the guide if a large over-size opening is not provided in the guide. The present invention is designed to permit of the use of a guide with an opening more nearly the size of the pipe than has been practical heretofore. The invention is also directed to an improvement in the guide whereby greater chip clearance is provided so that the stock may readily clear itself of chips. Features and details of the invention will appear from the specification and claim.
A preferred embodiment of the invention is illustrated in the accompanying drawing as follows:
Fig. 1 shows an elevation of the die stock with the cutting die removed.
Fig. 2 a section on the line 22 in Fig. 1 with the chaser die in place.
Fig. 3 a perspective view of the guide removed.
1 marks the body of the stock. One face of the stock is provided with shoulders 2 which, in effect, provide a socket for the chaser die, the bottom of the socket 3 being formed by the face 0 of the die stock. Screws 4 are arranged in the shoulders 2 and secure the die plate in place.
The body of the die stock has an opening 5 extending through it. A guide sleeve 6 has the radially extending plates, or wings '7 fitting the walls of the opening. Two of these plates are of greater length than the other plates and have projections 7a which extend into grooves 8 in the walls of the opening. The projections 7a bottom on the shoulders 9 at the bottom of the grooves 8 and the outer ends of these two plates engage the face of the die so that as the die is locked in place the guide is locked in place. The other two plates 10 merely fit the walls of the opening 5 and have their outer ends at 11 cut away to give a greater freedom of chip movement. The sleeve 6 is also notched at 12, these notches being directly in register with chip openings 13 between chasers 14 of the die. Thus again chip freedom is provided. The inner surface of the sleeve 6 has a coarse thread 15 which is adapted to receive a burr 16 at the end of the pipe. enter the burr in the thread and by rotating the die carry the pipe through the guide tube. In this way a reasonably close fit can be made between the opening of the guide sleeve 6 and the pipe and thus the pipe is not only centered with the chaser die, but also very closely alined and thus assures a thread practically in line with the pipe.
What I claim as new is:
In a die stock, the combination of a body; a die mounted in the body; and a pipe guide having a guide opening concentric with the die, said opening being threaded to permit the introduction of a burred end of a pipe to be threaded.
THORVALD PETERSEN.
With this screw thread it is possible to
US554724A 1931-08-03 1931-08-03 Die stock Expired - Lifetime US1965856A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US554724A US1965856A (en) 1931-08-03 1931-08-03 Die stock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US554724A US1965856A (en) 1931-08-03 1931-08-03 Die stock

Publications (1)

Publication Number Publication Date
US1965856A true US1965856A (en) 1934-07-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
US554724A Expired - Lifetime US1965856A (en) 1931-08-03 1931-08-03 Die stock

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2580818A (en) * 1948-05-01 1952-01-01 Charles A Bashford Connector for conduits

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2580818A (en) * 1948-05-01 1952-01-01 Charles A Bashford Connector for conduits

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