GB518146A - Improvements in or relating to lock washers and their manufacture - Google Patents
Improvements in or relating to lock washers and their manufactureInfo
- Publication number
- GB518146A GB518146A GB2710338A GB2710338A GB518146A GB 518146 A GB518146 A GB 518146A GB 2710338 A GB2710338 A GB 2710338A GB 2710338 A GB2710338 A GB 2710338A GB 518146 A GB518146 A GB 518146A
- Authority
- GB
- United Kingdom
- Prior art keywords
- thickened
- washer
- teeth
- washers
- punches
- 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 title 1
- 239000002184 metal Substances 0.000 abstract 2
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
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/16—Making other particular articles rings, e.g. barrel hoops
- B21D53/20—Making other particular articles rings, e.g. barrel hoops washers, e.g. for sealing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
518,146. Making lock-washers. EVERY. C. E. (Illinois Tool Works). Sept. 16, 1938, No. 27103. [Class 89 (i)] [Also in Group XXII] Lock washers with radial twisted prongs have thickened portions in their body forming work spacing abutments to prevent complete flattening of the prongs, In one form, Fig. 2, the thickened portions 20 occur at intervals around the washer body, such washers being punched from metal sheets having thickened ribs 32, Fig. 7, rolled on the surfaces. The central hole 34 is first punched, then the teeth spaces 36, the teeth are next twisted and finally the washer is separated from the sheet. In a modified form the washer is provided with a complete annular thickened body 42, Fig. 17. This is formed by advancing a metal strip 74, Figs. 22 and 23, step by step through a series of punches. A punch 46 first punches the central hole 76. The edge of this is then turned up by the conical punch 48, this upstanding edge being upset into a thickened portion of rectangular section by the punch 50. Three subsequent punches 52, 54 and 56 cut the teeth spaces, twist the teeth and separate the completed washer respectively,
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US204953A US2234194A (en) | 1938-04-29 | 1938-04-29 | Lock washer and method of producing same |
| GB2710338A GB518146A (en) | 1938-09-16 | 1938-09-16 | Improvements in or relating to lock washers and their manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2710338A GB518146A (en) | 1938-09-16 | 1938-09-16 | Improvements in or relating to lock washers and their manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB518146A true GB518146A (en) | 1940-02-19 |
Family
ID=10254238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2710338A Expired GB518146A (en) | 1938-04-29 | 1938-09-16 | Improvements in or relating to lock washers and their manufacture |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB518146A (en) |
-
1938
- 1938-09-16 GB GB2710338A patent/GB518146A/en not_active Expired
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