GB807148A - A new or improved tool for forming pins or the like on sheet-metal bodies - Google Patents

A new or improved tool for forming pins or the like on sheet-metal bodies

Info

Publication number
GB807148A
GB807148A GB23360/57A GB2336057A GB807148A GB 807148 A GB807148 A GB 807148A GB 23360/57 A GB23360/57 A GB 23360/57A GB 2336057 A GB2336057 A GB 2336057A GB 807148 A GB807148 A GB 807148A
Authority
GB
United Kingdom
Prior art keywords
tool
pin
recess
plunger
die
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
GB23360/57A
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.)
HANNS BUSSE
Original Assignee
HANNS BUSSE
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 HANNS BUSSE filed Critical HANNS BUSSE
Publication of GB807148A publication Critical patent/GB807148A/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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/14—Spinning

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

807,148. Making electric lamps; spinning. BUSSE, H. July 23, 1957 [July 25, 1956], No. 23360/57. Classes 83 (2) and 83 (4). A tool for forming hollow pins out of sheetmetal bodies, e.g. cap pins for electric lamps, wherein the pin is formed by the co-operation of a male die plunger, which determines the inside diameter of the pin, and a tool having a female die rotatable about its longitudinal axis and determining the outside surface of the pin and having a rubbing action, the tool and the die plunger being axially movable relatively to one another, is characterized in that the tool, or its die head, is symmetrical with respect to its axis of rotation and fork-shaped in such manner that the inner faces of the limbs of the fork form the peripheral surface of the pin. The tool has a stepped shaft 10, 10<SP>1</SP> and the forked head A is provided with two plane parallel surfaces 13 which, towards the free end of the tool, are tapered to provide a wedge-shaped portion 14. The tool has a central recess 15 with parallel side faces 16 and at the base of the recess two channels 17 form a transverse central boss 18 which serves to smooth the outer end of the pin as it is formed. Alternatively the recess has a plane base. In operation the metal cap is placed on a mandrel 21 provided with a radially slidable plunger 22 (Fig. 6). While the tool A is rotated it is guided radially against the cap 20, the plunger being simultaneously displaced in the opposite direction. For forming conical pins the recess 15 has divergent surfaces 16.
GB23360/57A 1956-07-25 1957-07-23 A new or improved tool for forming pins or the like on sheet-metal bodies Expired GB807148A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE807148X 1956-07-25

Publications (1)

Publication Number Publication Date
GB807148A true GB807148A (en) 1959-01-07

Family

ID=6722770

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23360/57A Expired GB807148A (en) 1956-07-25 1957-07-23 A new or improved tool for forming pins or the like on sheet-metal bodies

Country Status (1)

Country Link
GB (1) GB807148A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3137067A (en) * 1960-06-29 1964-06-16 Bruecker John Method of and apparatus for forming perforated shear plates for dry shavers of the rotary type

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3137067A (en) * 1960-06-29 1964-06-16 Bruecker John Method of and apparatus for forming perforated shear plates for dry shavers of the rotary type

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