GB596817A - Self-locking nut or bolt - Google Patents
Self-locking nut or boltInfo
- Publication number
- GB596817A GB596817A GB1823545A GB1823545A GB596817A GB 596817 A GB596817 A GB 596817A GB 1823545 A GB1823545 A GB 1823545A GB 1823545 A GB1823545 A GB 1823545A GB 596817 A GB596817 A GB 596817A
- Authority
- GB
- United Kingdom
- Prior art keywords
- collar
- nut
- neck
- face
- bolt
- 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
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000010008 shearing Methods 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
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/36—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt with conical locking parts, which may be split, including use of separate rings co-operating therewith
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Bolts, Nuts, And Washers (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
596,817. Locking nuts. PUMMILL, E. W. July 17, 1945, No. 18235. [Class 89 (i)] Lock-nuts of the type in which a projecting neck at the bearing face is constricted on to the bolt thread bv a collar, are formed initially with the collar integral with the nut, but axially spaced therefrom in such manner as to permit manufacture on a screw machine. A groove 15, Fig. 2, is turned in the stock forming a tapering neck 16 on the nut and defining a collar 17 that may have a reduced bearing surface 13. When the blanks are made otherwise than in screw machines, the collar may, if desired, have a greater diameter than the nut. The face 13 may be serrated and in cases where the diameter of the collar is less than that of the nut, the periphery of the collar may be knurled causing rough lateral edges that bite into the face of the nut and work respectively. On screwing up, the collar shears from the nut at 19 and is forced on to the neck 16 crowding this on to the bolt threads. The sheared metal forms an upstanding ridge on the collar and this is finally forced into the nut face, forcing the thread at this point into locking engagement with that of the bolt. In some cases, the neck may be parallel instead of tapered or the taper may be formed in the collar. The bore in the collar may be countersunk and the shape of the neck in shearing may be such as to leave a fin that is closed by the heck to form a flange, Fig. 9, permanently connecting the nut and collar. Locking bolts without nuts.-Set-screws may be provided with grooves 315, 315a, Fig. 6, defining a collar 317 which may be knurled or serrated as above and which shears and locks the screw on tightening against the surface B<1>.
Publications (1)
Publication Number | Publication Date |
---|---|
GB596817A true GB596817A (en) | 1948-01-12 |
Family
ID=1733753
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1823545A Expired GB596817A (en) | 1945-07-17 | Self-locking nut or bolt |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB596817A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1933044A3 (en) * | 2006-12-13 | 2008-08-20 | Alcoa Global Fastners, Inc. | Two-piece, free running, prevailing torque nut |
-
1945
- 1945-07-17 GB GB1823545A patent/GB596817A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1933044A3 (en) * | 2006-12-13 | 2008-08-20 | Alcoa Global Fastners, Inc. | Two-piece, free running, prevailing torque nut |
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