GB1193402A - Tube Expander - Google Patents

Tube Expander

Info

Publication number
GB1193402A
GB1193402A GB2535268A GB2535268A GB1193402A GB 1193402 A GB1193402 A GB 1193402A GB 2535268 A GB2535268 A GB 2535268A GB 2535268 A GB2535268 A GB 2535268A GB 1193402 A GB1193402 A GB 1193402A
Authority
GB
United Kingdom
Prior art keywords
pin
arm
stirrup
cam
slots
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
Application number
GB2535268A
Inventor
Wlodzimierz Rast
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2535268A priority Critical patent/GB1193402A/en
Publication of GB1193402A publication Critical patent/GB1193402A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/02—Enlarging
    • B21D41/026—Enlarging by means of mandrels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

1,193,402. Tube expanders. W. RAST. 27 May, 1968, No. 25352/68. Heading B3J. A tube expander comprises a body 1 having a fixed arm 11 and a movable arm 5 with means including a cam 4 for operating a tapered pin 2 to expand jaws 12, the means being adapted for operation in stages for moving the pin progressively. A wedge (not shown) may be inserted in stages between the pin and cam between strokes of the arm 5 or, as shown, a pivot pin 6 for the arm 5 may slide in slots 7 in the body 1. For the first stroke of arm 5 the pivot pin 6 is at the top of the slots; for the second it is held at the bottom, Fig. 3 (not shown), by a stirrup 8 engaging a recess 10 in the body, the pin 6 passing through the arms of the stirrup. A spring (14), Fig. 7 (not shown), may bias the stirrup towards the body 1. In a modification, Fig. 6, several recesses 21 are provided for the stirrup. In another form, Fig. 8 (not shown), a stepped wedge (30) is used between a sliding pivot (32) and the body (31).
GB2535268A 1968-05-27 1968-05-27 Tube Expander Expired GB1193402A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2535268A GB1193402A (en) 1968-05-27 1968-05-27 Tube Expander

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2535268A GB1193402A (en) 1968-05-27 1968-05-27 Tube Expander

Publications (1)

Publication Number Publication Date
GB1193402A true GB1193402A (en) 1970-06-03

Family

ID=10226280

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2535268A Expired GB1193402A (en) 1968-05-27 1968-05-27 Tube Expander

Country Status (1)

Country Link
GB (1) GB1193402A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee