Switch device
AssigneesVoestalpine Bwg GmbH & Co. KG, Voestalpine Vae GmbH
InventorsThomas BERGK, Thomas CHRIST, Jürgen HELLBACH, Torsten NOLTE
Life of this patent
Estimating the term…
Abstract
A switch device including a switch rail (12), the switch device having at least one stock rail (14), a junction rail (32) and a switch rail support (16), and the switch rail and the connecting rail being interconnected by a weld joint (34). The switch rail support (16) includes a through-opening (36) or a recess beneath the weld joint, the width of the through-opening or the recess being wider than the width of the switch rail (12). Furthermore, the length of the through-opening or the recess allows the junction rail (32) to connect to switch rails of the same or different lengths.
Claims14
A method for manufacturing metal closure caps, comprising:
- a) the supply of a strip or sheet, made of aluminum alloy known to those skilled in the art as “textured” strip or sheet, typically coated on at least one of its faces, generally the face intended to be on the inside of the cap, by a coat of stampable lacquer,
- b) a first operation for cutting discs, called blanks,
- c) a step for stamping and cutting anisotropic horns, in one or more passes, of said blank metal, typically using a stamping lubricant, so as to form a stamped blank, comprising a head and a skirt, typically axially symmetric in the axial direction,
- d) a step for degreasing said stamped blank, typically intended to eliminate the remaining lubricant, to form a degreased blank that can possibly be lacquered,
- e) an optional step of protective lacquering and/or decoration,
- and characterized in that it comprises, after the stamping step, at least one drawing step consisting in passing the stamped blank through at least one drawing ring in order to stretch and thin the metal.
Dependencies are inferred from the claim text.