GB302606A - Improvements in propellers - Google Patents
Improvements in propellersInfo
- Publication number
- GB302606A GB302606A GB37298/28A GB3729828A GB302606A GB 302606 A GB302606 A GB 302606A GB 37298/28 A GB37298/28 A GB 37298/28A GB 3729828 A GB3729828 A GB 3729828A GB 302606 A GB302606 A GB 302606A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rolls
- blades
- propellers
- sections
- 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
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
- B21H7/16—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons turbine blades; compressor blades; propeller blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
- B21J7/02—Special design or construction
- B21J7/14—Forging machines working with several hammers
- B21J7/16—Forging machines working with several hammers in rotary arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Forging (AREA)
Abstract
302,606. Zagorski, J., and Wesnigk, E. Dec. 17, 1927, [Convention date]. Screw propellers. - Propeller blades of moulded material have thick profiles at the roots for attachment to the boss which gradually thin toward the blade proper. The blades are finished by a rolling process, the outer parts being then twisted to the proper pitch. The propellers, or blades, may be cut from a block. The unfinished blocks are supported on a table between adjustable rolls, the table being driven by rack and pinion off the main drive for the rolls. For small two-bladed propellers, a block is cast with a thin central region and is cut across to provide a number of similar sections ready for rolling. For large two-bladed propellers, separate blocks are cast having the shape, Fig. 3, and the sections, Figs. 5 and 6. For the rolling operation upper and lower rolls 11, 12. are shaped to produce the requisite sections on the blades which are carried by a table 13, Figs. 9 and 10, having a lot 16 to provide a space for the roll surface 17 of the lower roll 12. The rolls are driven by gear shafts and pinions on the lower roll shaft engage racks in the table 13. The supporting rollers 14 of the table may be free or geared to the table drive. The rolls are adjusted by gears 24, 25.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEZ17229D DE543363C (en) | 1927-12-17 | 1927-12-17 | Process for the production of solid material propellers with the help of rollers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB302606A true GB302606A (en) | 1930-03-17 |
Family
ID=7624263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB37298/28A Expired GB302606A (en) | 1927-12-17 | 1928-12-17 | Improvements in propellers |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1900630A (en) |
| DE (1) | DE543363C (en) |
| FR (1) | FR665906A (en) |
| GB (1) | GB302606A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2498275A (en) * | 1945-09-25 | 1950-02-21 | Wallace C Johnson | Method of producing propeller constructions |
| US3002264A (en) * | 1953-06-08 | 1961-10-03 | Power Jets Res & Dev Ltd | Process for making turbine or compressor blades |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2535527A (en) * | 1946-08-15 | 1950-12-26 | Archiebald S Barkley | Model airplane propeller |
| US2739372A (en) * | 1951-03-30 | 1956-03-27 | United States Steel Corp | Method of making propeller-blade blanks |
| US3044746A (en) * | 1960-05-18 | 1962-07-17 | Gen Electric | Fluid-flow machinery blading |
| US3461966A (en) * | 1967-10-16 | 1969-08-19 | Hartzell Propeller Inc | Unitary fixed pitch aircraft propeller |
-
1927
- 1927-12-17 DE DEZ17229D patent/DE543363C/en not_active Expired
-
1928
- 1928-12-15 FR FR665906D patent/FR665906A/en not_active Expired
- 1928-12-17 GB GB37298/28A patent/GB302606A/en not_active Expired
-
1929
- 1929-01-25 US US335090A patent/US1900630A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2498275A (en) * | 1945-09-25 | 1950-02-21 | Wallace C Johnson | Method of producing propeller constructions |
| US3002264A (en) * | 1953-06-08 | 1961-10-03 | Power Jets Res & Dev Ltd | Process for making turbine or compressor blades |
Also Published As
| Publication number | Publication date |
|---|---|
| US1900630A (en) | 1933-03-07 |
| DE543363C (en) | 1932-09-24 |
| FR665906A (en) | 1929-09-25 |
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