GB563820A - Improvements in dies for the drawing of bar, tube, rod or strip - Google Patents
Improvements in dies for the drawing of bar, tube, rod or stripInfo
- Publication number
- GB563820A GB563820A GB681843A GB681843A GB563820A GB 563820 A GB563820 A GB 563820A GB 681843 A GB681843 A GB 681843A GB 681843 A GB681843 A GB 681843A GB 563820 A GB563820 A GB 563820A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blocks
- dies
- bar
- operative surface
- strip
- 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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
- B21C3/02—Dies; Selection of material therefor; Cleaning thereof
- B21C3/06—Dies; Selection of material therefor; Cleaning thereof with adjustable section
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
563,820. Drawing-dies. BOLTON & SONS, Ltd., T., and HAYES, G. V. D. April 30, 1943, No. 6818. [Class 83 (iv)] Sectional dies for drawing bar, rod or strip, such as sectioned bars for the production of commutator sections, comprise a number of blocks 2, 5, 8, 10 each having an operative surface 4, 7, &c. of a length greater than the maximum length of the corresponding side of the bar to be drawn, one or more of the blocks engaging with line contact, as at 3, 6, on the operative surface 4, 7 of another block. Alternate blocks have ribs guided in slots at right angles in the holder 1. The blocks are clamped by screws 13 acting through spacers 12. The blocks have one end surface at right angles to the operative surface, whilst the other end surface of one or more of the blocks is bevelled to an angle less than a right angle. Fig. 7 shows a modified shape of blocks. In a further modification, one or more of the blocks may have a stepped operative surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB681843A GB563820A (en) | 1943-04-30 | 1943-04-30 | Improvements in dies for the drawing of bar, tube, rod or strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB681843A GB563820A (en) | 1943-04-30 | 1943-04-30 | Improvements in dies for the drawing of bar, tube, rod or strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB563820A true GB563820A (en) | 1944-08-31 |
Family
ID=9821310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB681843A Expired GB563820A (en) | 1943-04-30 | 1943-04-30 | Improvements in dies for the drawing of bar, tube, rod or strip |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB563820A (en) |
-
1943
- 1943-04-30 GB GB681843A patent/GB563820A/en not_active Expired
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