GB286214A - Ring for milling the rim of watch cases - Google Patents

Ring for milling the rim of watch cases

Info

Publication number
GB286214A
GB286214A GB2205/28A GB220528A GB286214A GB 286214 A GB286214 A GB 286214A GB 2205/28 A GB2205/28 A GB 2205/28A GB 220528 A GB220528 A GB 220528A GB 286214 A GB286214 A GB 286214A
Authority
GB
United Kingdom
Prior art keywords
ring
milling
rim
watch cases
watch
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
GB2205/28A
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.)
EBERHARD DRUSENBAUM
ERNST BETZLER
Original Assignee
EBERHARD DRUSENBAUM
ERNST BETZLER
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 EBERHARD DRUSENBAUM, ERNST BETZLER filed Critical EBERHARD DRUSENBAUM
Publication of GB286214A publication Critical patent/GB286214A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D3/00—Watchmakers' or watch-repairers' machines or tools for working materials
    • G04D3/0002—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe
    • G04D3/0061—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe for components for protecting the mechanism against external influences
    • G04D3/0064—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe for components for protecting the mechanism against external influences for cases

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Food-Manufacturing Devices (AREA)

Abstract

286,214. Drusenbaum, P. [Firm of]. Feb. 28, 1927, [Convention date]. Watches.-A former for use in knurling watch cases by spinning consists of an integral ring provided with the required pattern on its internal surface. The ring is split at a and slots c terminating in perforations b give added flexibility in springing the tool over the watch case. Pins on a plierlike tool may engage some of the holes for this purpose.
GB2205/28A 1927-02-28 1928-01-23 Ring for milling the rim of watch cases Expired GB286214A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE286214X 1927-02-28

Publications (1)

Publication Number Publication Date
GB286214A true GB286214A (en) 1928-08-30

Family

ID=6059007

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2205/28A Expired GB286214A (en) 1927-02-28 1928-01-23 Ring for milling the rim of watch cases

Country Status (1)

Country Link
GB (1) GB286214A (en)

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