BE528891A - - Google Patents
Info
- Publication number
- BE528891A BE528891A BE528891DA BE528891A BE 528891 A BE528891 A BE 528891A BE 528891D A BE528891D A BE 528891DA BE 528891 A BE528891 A BE 528891A
- Authority
- BE
- Belgium
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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G9/00—Working screws, bolt heads, or nuts in conjunction with thread cutting, e.g. slotting screw heads or shanks, removing burrs from screw heads or shanks; Finishing, e.g. polishing, any screw-thread
- B23G9/001—Working screws
- B23G9/002—Slotting screw heads or shanks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B15/00—Screwdrivers
- B25B15/001—Screwdrivers characterised by material or shape of the tool bit
- B25B15/004—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section
- B25B15/007—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section with blade of flat or substantially flat cross-section
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Milling Processes (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1422954A GB770669A (en) | 1954-05-14 | 1954-05-14 | Slotted screw head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE528891A true BE528891A (en) | 1957-04-12 |
Family
ID=10037375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE528891D BE528891A (en) | 1954-05-14 | 1954-05-15 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE528891A (en) |
| DE (1) | DE1029620B (en) |
| FR (1) | FR1105234A (en) |
| GB (1) | GB770669A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939443B (en) * | 2014-04-04 | 2016-08-17 | 国家电网公司 | A kind of bolt and matching used spanner thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US132946A (en) * | 1872-11-12 | John s | ||
| DE10612C (en) * | P. SCHNEITLER in Berlin N., Müllerstrafse 179B | Innovations in screw heads and associated screwdrivers | ||
| BE418916A (en) * | 1935-12-12 | |||
| US2106278A (en) * | 1936-02-29 | 1938-01-25 | Martin H Redmer | Screw locking means |
| DE871232C (en) * | 1950-10-31 | 1953-04-13 | Erich Dipl-Ing Aue | Slotted screw |
-
1954
- 1954-05-10 FR FR1105234D patent/FR1105234A/en not_active Expired
- 1954-05-14 GB GB1422954A patent/GB770669A/en not_active Expired
- 1954-05-15 BE BE528891D patent/BE528891A/xx unknown
- 1954-05-20 DE DEH20340A patent/DE1029620B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB770669A (en) | 1957-03-20 |
| FR1105234A (en) | 1955-11-29 |
| DE1029620B (en) | 1958-05-08 |