DE319699C - Masonry drill - Google Patents

Masonry drill

Info

Publication number
DE319699C
DE319699C DENDAT319699D DE319699DD DE319699C DE 319699 C DE319699 C DE 319699C DE NDAT319699 D DENDAT319699 D DE NDAT319699D DE 319699D D DE319699D D DE 319699DD DE 319699 C DE319699 C DE 319699C
Authority
DE
Germany
Prior art keywords
drill
masonry drill
masonry
cutting edge
sleeve
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
DENDAT319699D
Other languages
German (de)
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.)
AUGUST MANZ
PAUL GAERTNER
Original Assignee
AUGUST MANZ
PAUL GAERTNER
Publication date
Application granted granted Critical
Publication of DE319699C publication Critical patent/DE319699C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28DWORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/14Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
    • B28D1/146Tools therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Description

Steinbohrer. Gegenstand der Erfindung ist ein Bohrer zum Bohren von Vertiefungen, Durchbohrungen o. dgl. in jedes Gestein oder steinartige Material, wie z. B. Marmor, Ziegelstein, Beton, Zementfliesen, Ofenkacheln usw. Bei den bekannten Steinbohrern ist es nicht immer zu vermeiden, daß der Rand der gebohrten Vertiefungen mehr oder weniger aussplittert und dafi beim Bearbeiten Risse erzeugt werden, die sehr oft das durchbohrte Material für den gewünschten Zweck ungeeignet machen, in den meisten Fällen aber den Wert des bearbeiteten Materials sehr stark herabmindern, was bei Kunstwerken nicht selten deren völligen Verlust zeitigt. Diese Übelstände sollen durch-den Gegenstand der Erfindung beseitigt werden. Das Neue besteht in der eigenartigen Ausbildung der Schneide des Bohrers.Masonry drill. The invention relates to a drill for drilling Depressions, holes or the like in any rock or stone-like material, such as B. marble, brick, concrete, cement tiles, stove tiles, etc. In the known Masonry drills do not always avoid hitting the edge of the drilled indentations more or less splinters and that cracks are generated during machining, which very often render the pierced material unsuitable for the intended purpose, in in most cases, however, greatly reduce the value of the processed material, which in the case of works of art often leads to their complete loss. These evils are intended to be eliminated by the subject matter of the invention. The new consists in the peculiar formation of the cutting edge of the drill.

Der auf der Zeichnung in Ansicht dargestellte neue Steinbohrer besteht aus einem Stahlzylinder f mit meiBelartiger Schneide a, b, von der seitlich schraubengangförmige Nuten c, d auslaufen, die gleichzeitig zur Aufnahme des herausgebohrten Materials dienen und dadurch ein stetes freies Arbeiten der Schneidkante des Bohrers gewährleisten.The new masonry drill shown in the drawing consists of a steel cylinder f with a chisel-like cutting edge a, b, from which helical grooves c, d run out at the side, which also serve to accommodate the material drilled out and thus ensure that the cutting edge of the drill bit works freely at all times .

Zur Herstellung besonders tiefer Ausbohrungen und zur besseren- Ausnutzung des Bohrers wird in bekannten Weise der Schaft g des Bohrers f konisch geformt und entweder unmittelbar in der Hülse h' eines Griffes i befestigt oder in die Hülse g'- einer Verlängerung k gesteckt und der konische Schaft dieser Verlängerung 1a alsdann in der Hülse hl des Griffes i befestigt.To produce particularly deep bores and for better utilization of the drill, the shank g of the drill f is shaped conically in a known manner and either fastened directly in the sleeve h 'of a handle i or inserted into the sleeve g'- an extension k and the conical Shank of this extension 1a then attached in the sleeve hl of the handle i.

Claims (1)

PATENTANSPRUCH: Steinbohrer, gekennzeichnet durch einen Stahlzylinder (f) mit meiBelartiger Schneide (a., b), von der seitlich schraubengangförmige Nuten (c, d) auslaufen. PATENT CLAIM: Stone drill , characterized by a steel cylinder (f) with a chisel-like cutting edge (a., B) from which helical grooves (c, d) run out to the side.
DENDAT319699D Masonry drill Expired DE319699C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE319699T

Publications (1)

Publication Number Publication Date
DE319699C true DE319699C (en) 1920-03-15

Family

ID=6152227

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT319699D Expired DE319699C (en) Masonry drill

Country Status (1)

Country Link
DE (1) DE319699C (en)

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