GB152309A - Work feeding apparatus for slow moving rolling mills - Google Patents
Work feeding apparatus for slow moving rolling millsInfo
- Publication number
- GB152309A GB152309A GB21055/20A GB2105520A GB152309A GB 152309 A GB152309 A GB 152309A GB 21055/20 A GB21055/20 A GB 21055/20A GB 2105520 A GB2105520 A GB 2105520A GB 152309 A GB152309 A GB 152309A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- work
- air
- stroke
- rolling
- 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
- B21B—ROLLING OF METAL
- B21B21/00—Pilgrim-step tube-rolling, i.e. pilger mills
- B21B21/04—Pilgrim-step feeding mechanisms
Abstract
152,309. Deutsche Maschinenfabrik Akt.-Ges., (Assignees of Dellwitz, 0.). Dec. 20, 1913, [Convention date]. Void [Published under Sect. 91 of the Act]. Rolling-mandrels.-In a pilger tube rolling mill, the mandrel and work are returned during the idle stroke by fluid pressure arranged to bring the parts to rest before the rolls engage the work and to assist in starting the work on the rolling stroke, thus reducing shock to the rolls. In the arrangement shown, the mandrel h is carried by the hollow differential piston b of an air cylinder a, air being admitted at the commencement of the idle stroke to both sides of the piston from a supply pipe i. At a suitable point in the stroke, ports c through which air passes to the small side of the piston are closed by the gland d and the air on that side of the piston is trapped and compressed to bring the parts to rest and assist their return. The size of the ports c may be adjusted by a grid ring e.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE152309X | 1913-12-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB152309A true GB152309A (en) | 1922-01-12 |
Family
ID=5674990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21055/20A Expired GB152309A (en) | 1913-12-20 | 1920-07-12 | Work feeding apparatus for slow moving rolling mills |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR535300A (en) |
| GB (1) | GB152309A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1143644B (en) * | 1977-03-29 | 1986-10-22 | P M I Macchine & Impianti Srl | PERFECTED FEEDING DEVICE COOPERATING WITH THE HYDRAULIC BRAKE FOR HOT ROLLING MACHINES, PELLEGRINO STEP FOR PIPES WITHOUT WELDING |
-
1920
- 1920-03-04 FR FR535300D patent/FR535300A/en not_active Expired
- 1920-07-12 GB GB21055/20A patent/GB152309A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR535300A (en) | 1922-04-12 |
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