SU651902A1 - Annular drilling bit - Google Patents

Annular drilling bit

Info

Publication number
SU651902A1
SU651902A1 SU772516869A SU2516869A SU651902A1 SU 651902 A1 SU651902 A1 SU 651902A1 SU 772516869 A SU772516869 A SU 772516869A SU 2516869 A SU2516869 A SU 2516869A SU 651902 A1 SU651902 A1 SU 651902A1
Authority
SU
USSR - Soviet Union
Prior art keywords
drilling bit
annular drilling
annular
bit
drill
Prior art date
Application number
SU772516869A
Other languages
Russian (ru)
Inventor
Леонид Михайлович Натапов
Михаил Дмитриевич Медведев
Original Assignee
Natapov Leonid M
Medvedev Mikhail D
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 Natapov Leonid M, Medvedev Mikhail D filed Critical Natapov Leonid M
Priority to SU772516869A priority Critical patent/SU651902A1/en
Application granted granted Critical
Publication of SU651902A1 publication Critical patent/SU651902A1/en

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
    • B23B51/0413—Drills for trepanning with core-cutting-off devices

Description

(54) КОЛЬЦЕВОЕ СВЕРЛО(54) RING DRILL

,::..Л45,,,..у, :: .. L45 ,,, .. at

33

ПосЛе определенного числа циклов вращени  сверла, соответствующего критическому числу циклов нагружени , стержень у, основани  обламываетс . Продолжительность отделени  стержн  зависит от его размеров, материала заготовки и частоты вращени  сверла.After a certain number of cycles of rotation of the drill, corresponding to the critical number of loading cycles, the rod y, the base is broken off. The duration of the separation of the rod depends on its size, the material of the workpiece and the frequency of rotation of the drill.

Claims (1)

1. Авторское свидетельство СССР №.97289, кл. В 23 В 51/04, 1948.1. USSR author's certificate No. 97289, cl. B 23 B 51/04, 1948.
SU772516869A 1977-08-15 1977-08-15 Annular drilling bit SU651902A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU772516869A SU651902A1 (en) 1977-08-15 1977-08-15 Annular drilling bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU772516869A SU651902A1 (en) 1977-08-15 1977-08-15 Annular drilling bit

Publications (1)

Publication Number Publication Date
SU651902A1 true SU651902A1 (en) 1979-03-28

Family

ID=20721835

Family Applications (1)

Application Number Title Priority Date Filing Date
SU772516869A SU651902A1 (en) 1977-08-15 1977-08-15 Annular drilling bit

Country Status (1)

Country Link
SU (1) SU651902A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0940237A1 (en) * 1998-03-06 1999-09-08 Quintilio Lupi Modular system of circular saw blades for forming curved surfaces in marble, stone and the like
WO2000071295A1 (en) * 1999-05-21 2000-11-30 Quintilio Lupi Rotary tool with combined abrasive and fragmentation action for producing profiles or cuts on sheets of fragile material such as marble, granite, stone, glass and the like

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0940237A1 (en) * 1998-03-06 1999-09-08 Quintilio Lupi Modular system of circular saw blades for forming curved surfaces in marble, stone and the like
WO1999044798A1 (en) * 1998-03-06 1999-09-10 Quintilio Lupi Modular system of circular saw blades for forming curved surfaces in marble, stone and the like
US6142139A (en) * 1998-03-06 2000-11-07 Lupi; Quintilio System of modular elements for machining marble, stone and the like
US6371103B1 (en) 1998-03-06 2002-04-16 Quintilio Lupi System of modular elements for machining marble, stone and the like
WO2000071295A1 (en) * 1999-05-21 2000-11-30 Quintilio Lupi Rotary tool with combined abrasive and fragmentation action for producing profiles or cuts on sheets of fragile material such as marble, granite, stone, glass and the like
US6793564B1 (en) 1999-05-21 2004-09-21 Quintilio Lupi Rotary tool with combined abrasive and fragmentation action for producing profiles or cuts on sheets of fragile material such as marble, granite, stone, glass and the like

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