GB935182A - Improvements relating to thread-cutting taps and dies - Google Patents
Improvements relating to thread-cutting taps and diesInfo
- Publication number
- GB935182A GB935182A GB4263659A GB4263659A GB935182A GB 935182 A GB935182 A GB 935182A GB 4263659 A GB4263659 A GB 4263659A GB 4263659 A GB4263659 A GB 4263659A GB 935182 A GB935182 A GB 935182A
- Authority
- GB
- United Kingdom
- Prior art keywords
- region
- thread
- diameter
- threads
- regions
- 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
-
- 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
- B23G5/00—Thread-cutting tools; Die-heads
- B23G5/02—Thread-cutting tools; Die-heads without means for adjustment
- B23G5/04—Dies
-
- 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
- B23G5/00—Thread-cutting tools; Die-heads
-
- 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
- B23G5/00—Thread-cutting tools; Die-heads
- B23G5/02—Thread-cutting tools; Die-heads without means for adjustment
- B23G5/06—Taps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Milling Processes (AREA)
Abstract
935,182. Taps and dies. A. BECK. Dec. 15, 1959 [Dec. 22, 1958], No. 42636/59. Class 83 (3). A thread-cutting tap has a portion formed with an external thread of which the crest is at a constant pitch, this portion comprises three regions, the second region being at the leading end or tip and the third region lying between the first and second regions, the first region having a thread of constant diameter, the thread in the second region decreasing towards the tip and having a maximum crest diameter less than that of the first region but greater than the root diameter of the first region, the thread in the third region being of V-section similar to the thread in the first and second regions but being truncated with the diameter decreasing towards the second region. The second (leading) region 5, Figs. 1 and 2, comprises a number of turns of complete V-threads, the outside diameter of which lies along a conical surface inclined at an angle II of about two-thirds the value of angle C. The latter is the taper angle for producing the truncated form of the middle or third region 4 and may vary between 6 and 14 degrees. The first or end region 3 comprises V-threads of the full form and diameter to be cut and merges into the third region. The application of the arrangement of threads to a die is also described. Specification 887,302 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB51522A DE1148127B (en) | 1958-12-22 | 1958-12-22 | Thread cutting tool |
Publications (1)
Publication Number | Publication Date |
---|---|
GB935182A true GB935182A (en) | 1963-08-28 |
Family
ID=6969574
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4263659A Expired GB935182A (en) | 1958-12-22 | 1959-12-15 | Improvements relating to thread-cutting taps and dies |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH376349A (en) |
DE (1) | DE1148127B (en) |
GB (1) | GB935182A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013103538A1 (en) * | 2013-04-09 | 2014-10-09 | EMUGE-Werk Richard Glimpel GmbH & Co. KG Fabrik für Präzisionswerkzeuge | Tool and method for cutting thread production |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE388494C (en) * | 1924-01-14 | Borsig G M B H Maschinenfabrik | Tap drill for stud and ceiling stud holes | |
DE482859C (en) * | 1929-09-21 | Ewald Hanus | Taps | |
FR415691A (en) * | 1910-05-07 | 1910-10-01 | Maxime Jules Androuin | Improvements to taps, reamers and other similar tools |
DE466346C (en) * | 1925-01-19 | 1928-10-06 | Hermann Steinrueck | Taps |
-
1958
- 1958-12-22 DE DEB51522A patent/DE1148127B/en active Pending
-
1959
- 1959-12-15 GB GB4263659A patent/GB935182A/en not_active Expired
- 1959-12-15 CH CH8183359A patent/CH376349A/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE1148127B (en) | 1963-05-02 |
CH376349A (en) | 1964-03-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES345269A1 (en) | Rotary threaded fasteners | |
ES259602U (en) | Thread-forming screw with step taper | |
ES336641A1 (en) | Drilling screw | |
GB1065905A (en) | Self-tapping screw | |
ES420130A1 (en) | Self-extruding screw | |
GB565855A (en) | Improvements relating to self-tapping screws | |
GB993482A (en) | Nut device | |
SU419053A3 (en) | CARVER THREAD * AH FASTENING PART | |
GB1288241A (en) | ||
GB947097A (en) | Improvements relating to nuts | |
GB1123313A (en) | Locking thread form | |
GB1288612A (en) | ||
GB467814A (en) | Improvements in screw-threaded fasteners | |
GB667051A (en) | Improvements in or relating to self-tapping screws | |
GB935182A (en) | Improvements relating to thread-cutting taps and dies | |
GB942417A (en) | Improvements relating to screws | |
FR2326613A1 (en) | Self-tapping screw for use with plastics - uses maximum of three full threads to reduce screw driving torque | |
US3286754A (en) | Self-locking set screw | |
GB1018360A (en) | Improvements in reamer taps | |
GB548516A (en) | Improvements in screws | |
GB943575A (en) | Thread-swaging and fastening screws | |
GB1039564A (en) | Method of manufacture of thread-forming taps | |
JPS54106754A (en) | Nut | |
GB1306266A (en) | ||
GB1062724A (en) | Improvements in screw threaded locking nuts |