GB238285A - Improvements in or relating to screw-threading taps - Google Patents
Improvements in or relating to screw-threading tapsInfo
- Publication number
- GB238285A GB238285A GB1172524A GB1172524A GB238285A GB 238285 A GB238285 A GB 238285A GB 1172524 A GB1172524 A GB 1172524A GB 1172524 A GB1172524 A GB 1172524A GB 238285 A GB238285 A GB 238285A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sleeve
- tap
- nut
- expanded
- keyed
- 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
- B23G5/06—Taps
- B23G5/062—Taps with a guiding means part
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dowels (AREA)
- Closures For Containers (AREA)
Abstract
238,285. Gabriel, S. L. D. May 12, 1924. Taps.-A tap has made integral therewith or secured thereto a cylindrical guide portion which is adjustable to fit the hole being tapped. In the integral form the cylindrical portion c, Fig. 1, has several slots d and an annular groove e and is expanded by a tapered screwed plug g. The plug may be plain and actuated by a drawspindle 'having a nut at the rear of the top. In a modification, the cylindrical portion is in the form of a split-sleeve c, Fig. 4, keyed to the tap at n and expanded by a conical nut g<1>. A nut o retains the sleeve on the tap. In a further modification, the tap body is tapered and the keyed split-sleeve is adjusted by a nut engaging an annular internal rib on the sleeve. Alterna. tively, the sleeve may have a projection engaging the flutes of the tap in place of a key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1172524A GB238285A (en) | 1924-05-12 | 1924-05-12 | Improvements in or relating to screw-threading taps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1172524A GB238285A (en) | 1924-05-12 | 1924-05-12 | Improvements in or relating to screw-threading taps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB238285A true GB238285A (en) | 1925-08-12 |
Family
ID=9991523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1172524A Expired GB238285A (en) | 1924-05-12 | 1924-05-12 | Improvements in or relating to screw-threading taps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB238285A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021055338A (en) * | 2019-09-30 | 2021-04-08 | 株式会社エヌ・シー・エヌ | Tap, burying method of lag screw bolt to guide hole using tap, joint structure of structure skeleton of wooden building by method and wooden building |
-
1924
- 1924-05-12 GB GB1172524A patent/GB238285A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021055338A (en) * | 2019-09-30 | 2021-04-08 | 株式会社エヌ・シー・エヌ | Tap, burying method of lag screw bolt to guide hole using tap, joint structure of structure skeleton of wooden building by method and wooden building |
| JP7333061B2 (en) | 2019-09-30 | 2023-08-24 | 株式会社エヌ・シー・エヌ | Tap, method of burying lag screw bolts in guide holes using the same tap, joint structure of structural frame of wooden building by the same method, and wooden building |
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