GB918265A - A screw - Google Patents
A screwInfo
- Publication number
- GB918265A GB918265A GB3891360A GB3891360A GB918265A GB 918265 A GB918265 A GB 918265A GB 3891360 A GB3891360 A GB 3891360A GB 3891360 A GB3891360 A GB 3891360A GB 918265 A GB918265 A GB 918265A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strip
- screw
- cap
- pressed
- flange
- 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
Links
- 229910001369 Brass Inorganic materials 0.000 abstract 1
- 239000010951 brass Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
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
- F16B33/00—Features common to bolt and nut
- F16B33/02—Shape of thread; Special thread-forms
-
- 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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
- Buffer Packaging (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
918,265. Making screws. TELEFONAKTIEBOLAGET L. M. ERICSSON. Nov. 11, 1960 [Nov. 11, 1959], No. 38913/60. Class 83 (2). [Also in Group XXV] A screw is formed by twisting a parallelsided, flat strip 1, e.g. of brass, about its longitudinal axis so that the axis remains straight and the edges 2 form helices, these edges being formed with a screw-thread coaxial with the helices and of a pitch smaller than that of the helices. An untwisted end portion 3 of the strip may provide the means for turning the screw and may have a hole which may contain a pin, Figs. 3, 4 (not shown). For turning by hand or by a flattened tube, it may bear a pressed-on cap 4 with a flange 5 for bearing on the workpiece. It may be bent to one side, Fig. 6 (not shown), or divided and bent to both sides, Fig. 5. A solid cheese-head may be pressed on to it, Fig. 7 (not shown), or it may be larger than the rest of the strip and formed with downward extensions 14, Fig. 10, which are curved each to one side. These extensions 14 may be directed in a clockwise direction on a left-hand screw, for example, so that sharp edges 15 precede the roots of the extensions when unscrewing, so that such action is impeded. The strip may be twisted for its whole length, Fig. 8, a cap being pressed or screwed on its end. The cap may be a plain open cylinder, Fig. 9 (not shown), in which case the screw is turned by the fingers or a tool with a slot for receiving the strip end or the cap may be formed with a screwdriver slot 12 and a flange 5. A number of open caps which may each have a flange may be spaced along a continuous strip and pressed or rolled on before the strip is cut in screw lengths.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE1056559 | 1959-11-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB918265A true GB918265A (en) | 1963-02-13 |
Family
ID=20292521
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3891360A Expired GB918265A (en) | 1959-11-11 | 1960-11-11 | A screw |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE596943A (en) |
CH (1) | CH387385A (en) |
GB (1) | GB918265A (en) |
NL (2) | NL257867A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3391720A (en) * | 1966-10-12 | 1968-07-09 | Morse Milton | Spiral shaped threaded locking fastener |
DE19961163A1 (en) * | 1999-12-17 | 2001-06-21 | Volkswagen Ag | Light screw for releasable connection of parts, with sheet metal strip and two radial sheet webs |
-
0
- NL NL102302D patent/NL102302C/xx active
- NL NL257867D patent/NL257867A/xx unknown
-
1960
- 1960-11-04 CH CH1229060A patent/CH387385A/en unknown
- 1960-11-10 BE BE596943A patent/BE596943A/en unknown
- 1960-11-11 GB GB3891360A patent/GB918265A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3391720A (en) * | 1966-10-12 | 1968-07-09 | Morse Milton | Spiral shaped threaded locking fastener |
DE19961163A1 (en) * | 1999-12-17 | 2001-06-21 | Volkswagen Ag | Light screw for releasable connection of parts, with sheet metal strip and two radial sheet webs |
Also Published As
Publication number | Publication date |
---|---|
CH387385A (en) | 1965-01-31 |
BE596943A (en) | 1961-03-01 |
NL257867A (en) | |
NL102302C (en) |
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