FR707522A - Perfectionnements aux vis - Google Patents
Perfectionnements aux visInfo
- Publication number
- FR707522A FR707522A FR707522DA FR707522A FR 707522 A FR707522 A FR 707522A FR 707522D A FR707522D A FR 707522DA FR 707522 A FR707522 A FR 707522A
- Authority
- FR
- France
- Prior art keywords
- enhancements
- screw
- screw enhancements
- 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
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
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/001—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed
- F16B25/0015—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed the material being a soft organic material, e.g. wood or plastic
-
- 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
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/10—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws
- F16B25/106—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws by means of a self-piercing screw-point, i.e. without removing material
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Wood Science & Technology (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR707522T | 1930-03-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR707522A true FR707522A (fr) | 1931-07-09 |
Family
ID=9068385
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR707522D Expired FR707522A (fr) | 1930-03-13 | 1930-03-13 | Perfectionnements aux vis |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR707522A (fr) |
-
1930
- 1930-03-13 FR FR707522D patent/FR707522A/fr not_active Expired
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