GB301580A - Improvements in and relating to screw heads - Google Patents

Improvements in and relating to screw heads

Info

Publication number
GB301580A
GB301580A GB2508527A GB2508527A GB301580A GB 301580 A GB301580 A GB 301580A GB 2508527 A GB2508527 A GB 2508527A GB 2508527 A GB2508527 A GB 2508527A GB 301580 A GB301580 A GB 301580A
Authority
GB
United Kingdom
Prior art keywords
screw
recess
relating
grooves
screw heads
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
GB2508527A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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
Priority to BE354385D priority Critical patent/BE354385A/xx
Application filed by Individual filed Critical Individual
Priority to GB2508527A priority patent/GB301580A/en
Priority to FR660859D priority patent/FR660859A/fr
Publication of GB301580A publication Critical patent/GB301580A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
    • F16B23/0015—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially rectangular, e.g. one-slot head

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)
  • Joining Of Building Structures In Genera (AREA)
GB2508527A 1927-09-23 1927-09-23 Improvements in and relating to screw heads Expired GB301580A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE354385D BE354385A (enrdf_load_stackoverflow) 1927-09-23
GB2508527A GB301580A (en) 1927-09-23 1927-09-23 Improvements in and relating to screw heads
FR660859D FR660859A (fr) 1927-09-23 1928-09-22 Perfectionnement aux têtes de vis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2508527A GB301580A (en) 1927-09-23 1927-09-23 Improvements in and relating to screw heads

Publications (1)

Publication Number Publication Date
GB301580A true GB301580A (en) 1928-12-06

Family

ID=10221946

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2508527A Expired GB301580A (en) 1927-09-23 1927-09-23 Improvements in and relating to screw heads

Country Status (3)

Country Link
BE (1) BE354385A (enrdf_load_stackoverflow)
FR (1) FR660859A (enrdf_load_stackoverflow)
GB (1) GB301580A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5020954A (en) * 1981-03-30 1991-06-04 Intools, Limited Screw driving socket
CN103790916A (zh) * 2014-02-20 2014-05-14 陈文丽 一种螺丝

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5020954A (en) * 1981-03-30 1991-06-04 Intools, Limited Screw driving socket
CN103790916A (zh) * 2014-02-20 2014-05-14 陈文丽 一种螺丝

Also Published As

Publication number Publication date
BE354385A (enrdf_load_stackoverflow)
FR660859A (fr) 1929-07-18

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