GB1501198A – Devices for forming an annular recess around a central hole
– Google Patents
GB1501198A – Devices for forming an annular recess around a central hole
– Google Patents
Devices for forming an annular recess around a central hole
Info
Publication number
GB1501198A
GB1501198A
GB2636175A
GB2636175A
GB1501198A
GB 1501198 A
GB1501198 A
GB 1501198A
GB 2636175 A
GB2636175 A
GB 2636175A
GB 2636175 A
GB2636175 A
GB 2636175A
GB 1501198 A
GB1501198 A
GB 1501198A
Authority
GB
United Kingdom
Prior art keywords
hole
rebate
spigot
attachment
annular
Prior art date
1976-06-16
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
GB2636175A
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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.)
1976-06-16
Filing date
1976-06-16
Publication date
1978-02-15
1976-06-16
Application filed by National Research Development Corp UK
filed
Critical
National Research Development Corp UK
1976-06-16
Priority to GB2636175A
priority
Critical
patent/GB1501198A/en
1978-02-15
Publication of GB1501198A
publication
Critical
patent/GB1501198A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
B—PERFORMING OPERATIONS; TRANSPORTING
B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23B—TURNING; BORING
B23B51/00—Tools for drilling machines
B23B51/10—Bits for countersinking
B—PERFORMING OPERATIONS; TRANSPORTING
B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23B—TURNING; BORING
B23B2251/00—Details of tools for drilling machines
B23B2251/50—Drilling tools comprising cutting inserts
Abstract
1501198 Annular rebating device; grinding NATIONAL RESEARCH DEVELOPMENT CORP 16 June 1976 [20 June 1975] 26361/75 Headings B3C and B3D [Also in Division B5] A device 10 for forming an annular rebate 12 around a hole 14 in material 16 such as wood, Fig. 4, and which may be hand driven through a ratchet drive 28, Fig. 1, be an attachment for a power tool 48, Fig. 5, or an integral part of a power tool (51, Fig. 6, not shown), comprises locating means, spigot 18 for engaging the hole, one or more abrading or, as shown, cutting means, blades 20, for removal of material around the hole, and a depth stop 24 for engaging the surface of the material around the rebate. The abrading means may comprise a roughened metal annular surface. One or more scribing cutters 23 cut into the material along the outer periphery of the rebate to provide a clean edge. The spigot, stop, cutting blades and scribing cutters may be replaceable or adjustable. In Fig. 5, the attachment is connectable to drill chuck 46 by means of adaptor 40. In Fig. 7, a hole saw 58 is detachably mounted inside the spigot 18 in order to cut the hole 14 itself in addition to the rebate and can include a pilot guide rod (70, Fig. 8, not shown) screwed into adaptor 40 for insertion into a pre-drilled centre guide hole, or a pilot drill for providing the centre guide hole as well. The details shown in Fig. 7 need not be restricted to the attachment. The hole and rebate can be covered by a plate 32 flush with the material surface to form a trap assembly for use in electrical installations in houses.
GB2636175A
1976-06-16
1976-06-16
Devices for forming an annular recess around a central hole
Expired
GB1501198A
(en)
Priority Applications (1)
Application Number
Priority Date
Filing Date
Title
GB2636175A
GB1501198A
(en)
1976-06-16
1976-06-16
Devices for forming an annular recess around a central hole
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB2636175A
GB1501198A
(en)
1976-06-16
1976-06-16
Devices for forming an annular recess around a central hole
Publications (1)
Publication Number
Publication Date
GB1501198A
true
GB1501198A
(en)
1978-02-15
Family
ID=10242465
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB2636175A
Expired
GB1501198A
(en)
1976-06-16
1976-06-16
Devices for forming an annular recess around a central hole
Country Status (1)
Country
Link
GB
(1)
GB1501198A
(en)
Cited By (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2364662A
(en)
*
2000-06-30
2002-02-06
Armeg Ltd
A hole cutter for use with an electric hand drill
US6893194B2
(en)
*
2001-01-19
2005-05-17
Cavity Access, Ltd.
Workman’s tool for accessing cavities
US7384222B2
(en)
*
2006-05-08
2008-06-10
Walley Chao
Hole saw
US20130045060A1
(en)
*
2007-06-05
2013-02-21
Airbus Operations Gmbh
Machining Apparatus and Method for Machining a Laminate
CN103769985A
(en)
*
2012-10-27
2014-05-07
王金耀
Portable grinding wheel polishing machine
1976
1976-06-16
GB
GB2636175A
patent/GB1501198A/en
not_active
Expired
Cited By (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2364662A
(en)
*
2000-06-30
2002-02-06
Armeg Ltd
A hole cutter for use with an electric hand drill
US6893194B2
(en)
*
2001-01-19
2005-05-17
Cavity Access, Ltd.
Workman’s tool for accessing cavities
US7384222B2
(en)
*
2006-05-08
2008-06-10
Walley Chao
Hole saw
US20130045060A1
(en)
*
2007-06-05
2013-02-21
Airbus Operations Gmbh
Machining Apparatus and Method for Machining a Laminate
US8568069B2
(en)
*
2007-06-05
2013-10-29
Airbus Operations Gmbh
Machining apparatus and method for machining a laminate
CN103769985A
(en)
*
2012-10-27
2014-05-07
王金耀
Portable grinding wheel polishing machine
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Legal Events
Date
Code
Title
Description
1978-06-28
PS
Patent sealed
1983-01-19
PCNP
Patent ceased through non-payment of renewal fee
