GB149561A - Improvements in and relating to screws adapted to be operated by a screw-driver - Google Patents

Improvements in and relating to screws adapted to be operated by a screw-driver

Info

Publication number
GB149561A
GB149561A GB2837319A GB2837319A GB149561A GB 149561 A GB149561 A GB 149561A GB 2837319 A GB2837319 A GB 2837319A GB 2837319 A GB2837319 A GB 2837319A GB 149561 A GB149561 A GB 149561A
Authority
GB
United Kingdom
Prior art keywords
driver
relating
operated
screw
screws adapted
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
GB2837319A
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
Application filed by Individual filed Critical Individual
Priority to GB2837319A priority Critical patent/GB149561A/en
Publication of GB149561A publication Critical patent/GB149561A/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)
  • Closures For Containers (AREA)

Abstract

149,561. Beanes, F. E. V. Nov. 15, 1919. No Patent granted (Sealing fee not paid). Set-screws.-The notch a in the head is of V-shape to centralize the driver and prevent slipping.
GB2837319A 1919-11-15 1919-11-15 Improvements in and relating to screws adapted to be operated by a screw-driver Expired GB149561A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2837319A GB149561A (en) 1919-11-15 1919-11-15 Improvements in and relating to screws adapted to be operated by a screw-driver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2837319A GB149561A (en) 1919-11-15 1919-11-15 Improvements in and relating to screws adapted to be operated by a screw-driver

Publications (1)

Publication Number Publication Date
GB149561A true GB149561A (en) 1920-08-19

Family

ID=10274617

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2837319A Expired GB149561A (en) 1919-11-15 1919-11-15 Improvements in and relating to screws adapted to be operated by a screw-driver

Country Status (1)

Country Link
GB (1) GB149561A (en)

Similar Documents

Publication Publication Date Title
GB149561A (en) Improvements in and relating to screws adapted to be operated by a screw-driver
GB276786A (en) Improvements in or relating to screws
GB357468A (en) Improvements in the heads of screws and bolts
GB154715A (en) An improved screw driver
GB137500A (en) Improvements in key-holders
GB287327A (en) Improvements in or relating to screw taps
GB672898A (en) An improved screwdriver
GB204924A (en) Improvements in or relating to chaplets for use in foundry work
GB181184A (en) A device to facilitate the adjustment, removal, reversal, and replacement of double-sprocketed driving wheels of velocipedes, motor cycles, and the like
GB145943A (en) A new or improved collar for attachment to shafts, spindles, and the like
GB191891A (en) Improvements in or relating to fastening devices
GB217710A (en) Improvements in spanners
GB139362A (en) Improvements in or relating to washers for screw down taps
AU1130919A (en) Oneway screw or bolt
GB189079A (en) Improvements in and relating to cap spinning devices
GB164842A (en) An adjustable cramp suitable for horizontal and inclined surfaces
GB184682A (en) Improvements in and relating to counting devices for typewriters and the like
GB144088A (en) An improved lock-nut
GB177622A (en) A new or improved fastening for window sashes and the like
GB138252A (en) Improvements in or relating to studs or spigots for the change speed wheels of lathes
GB171557A (en) Improvements in clamping screws for use on machine tools and the like
ES16365U (en) Tool for the start-up of vehicle engines. (Machine-translation by Google Translate, not legally binding)
GB176982A (en) Improvements in and relating to screw drivers
GB145922A (en) Improved construction of stair rod fastening device
GB471647A (en) Improvements in or relating to carbon arc lamps