CH226972A - Method and machine for the production of rings and coils from concrete iron for building purposes. - Google Patents
Method and machine for the production of rings and coils from concrete iron for building purposes.Info
- Publication number
- CH226972A CH226972A CH226972DA CH226972A CH 226972 A CH226972 A CH 226972A CH 226972D A CH226972D A CH 226972DA CH 226972 A CH226972 A CH 226972A
- Authority
- CH
- Switzerland
- Prior art keywords
- coils
- rings
- production
- machine
- building purposes
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/06—Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/22—Demodulator circuits; Receiver circuits
- H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
- H04L27/2275—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/22—Demodulator circuits; Receiver circuits
- H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
- H04L27/2331—Demodulator circuits; Receiver circuits using non-coherent demodulation wherein the received signal is demodulated using one or more delayed versions of itself
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mechanical Engineering (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE280541X | 1941-05-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH226972A true CH226972A (en) | 1943-05-15 |
Family
ID=6031502
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH226123D CH226123A (en) | 1941-05-28 | 1942-04-08 | AC telegraphy system. |
CH226972D CH226972A (en) | 1941-05-28 | 1942-05-22 | Method and machine for the production of rings and coils from concrete iron for building purposes. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH226123D CH226123A (en) | 1941-05-28 | 1942-04-08 | AC telegraphy system. |
Country Status (3)
Country | Link |
---|---|
CH (2) | CH226123A (en) |
FR (1) | FR882379A (en) |
NL (1) | NL56851C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1119631B (en) * | 1956-10-11 | 1961-12-14 | Fritz Zur Heide | Device for the production of shaped bent parts |
DE1243952B (en) * | 1957-06-21 | 1967-07-06 | Fritz Zur Heide | Device for the production of shaped bent parts |
-
0
- NL NL56851D patent/NL56851C/xx active
-
1942
- 1942-04-08 CH CH226123D patent/CH226123A/en unknown
- 1942-05-22 CH CH226972D patent/CH226972A/en unknown
- 1942-05-27 FR FR882379D patent/FR882379A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1119631B (en) * | 1956-10-11 | 1961-12-14 | Fritz Zur Heide | Device for the production of shaped bent parts |
DE1243952B (en) * | 1957-06-21 | 1967-07-06 | Fritz Zur Heide | Device for the production of shaped bent parts |
Also Published As
Publication number | Publication date |
---|---|
FR882379A (en) | 1943-06-01 |
NL56851C (en) | |
CH226123A (en) | 1943-03-15 |
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