DE14539C - Rohrwandbohrer - Google Patents

Rohrwandbohrer

Info

Publication number
DE14539C
DE14539C DENDAT14539D DE14539DA DE14539C DE 14539 C DE14539 C DE 14539C DE NDAT14539 D DENDAT14539 D DE NDAT14539D DE 14539D A DE14539D A DE 14539DA DE 14539 C DE14539 C DE 14539C
Authority
DE
Germany
Prior art keywords
pipe wall
wall drill
drill
conaxial
centration
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.)
Active
Application number
DENDAT14539D
Other languages
English (en)
Original Assignee
Gebr. Forstreuter in Oschersleben
Publication of DE14539C publication Critical patent/DE14539C/de
Active legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/04—Drills for trepanning
    • B23B51/0426—Drills for trepanning with centering devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)
  • Geophysics And Detection Of Objects (AREA)

Description

Hierzu 1 Blatt Zeichnungen.

Claims (1)

  1. Patent-Anspruch:
    Die aus der Zeichnung ersichtliche Gesammtanordnung eines Rohrwandbohrers, bei welcher eine zur Anpressung des Centrirungsdornes benutzte Schraubenfeder conaxial zum Bohrloch angeordnet ist.
DENDAT14539D Rohrwandbohrer Active DE14539C (de)

Publications (1)

Publication Number Publication Date
DE14539C true DE14539C (de)

Family

ID=291618

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT14539D Active DE14539C (de) Rohrwandbohrer

Country Status (1)

Country Link
DE (1) DE14539C (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2454522A (en) * 1944-12-26 1948-11-23 American Pearl Button Co Tubular saw chuck
FR2332832A1 (fr) * 1975-11-26 1977-06-24 Wozar Tiberius Outil pour percage avec noyau
FR2450136A1 (fr) * 1979-03-01 1980-09-26 Hougen Everett Machine a percer des trous au moyen de fraises annulaires
FR2579918A1 (de) * 1985-04-08 1986-10-10 Milwaukee Electric Tool Corp

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2454522A (en) * 1944-12-26 1948-11-23 American Pearl Button Co Tubular saw chuck
FR2332832A1 (fr) * 1975-11-26 1977-06-24 Wozar Tiberius Outil pour percage avec noyau
FR2450136A1 (fr) * 1979-03-01 1980-09-26 Hougen Everett Machine a percer des trous au moyen de fraises annulaires
FR2579918A1 (de) * 1985-04-08 1986-10-10 Milwaukee Electric Tool Corp

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