IT1130336B - VARIABLE SPEED CONTROL FOR LIFTING EQUIPMENT - Google Patents
VARIABLE SPEED CONTROL FOR LIFTING EQUIPMENTInfo
- Publication number
- IT1130336B IT1130336B IT21039/80A IT2103980A IT1130336B IT 1130336 B IT1130336 B IT 1130336B IT 21039/80 A IT21039/80 A IT 21039/80A IT 2103980 A IT2103980 A IT 2103980A IT 1130336 B IT1130336 B IT 1130336B
- Authority
- IT
- Italy
- Prior art keywords
- speed control
- variable speed
- lifting equipment
- lifting
- equipment
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
- H02P5/46—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another
- H02P5/50—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another by comparing electrical values representing the speeds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/40—Control devices
- B66D1/42—Control devices non-automatic
- B66D1/46—Control devices non-automatic electric
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792912966 DE2912966A1 (en) | 1979-03-31 | 1979-03-31 | Controlled-speed hoist drive - reverses polarity before difference formation by synchronising equipment and has winch drives operating separately or together (NL 2.10.80) |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8021039A0 IT8021039A0 (en) | 1980-03-28 |
IT1130336B true IT1130336B (en) | 1986-06-11 |
Family
ID=6067079
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT21039/80A IT1130336B (en) | 1979-03-31 | 1980-03-28 | VARIABLE SPEED CONTROL FOR LIFTING EQUIPMENT |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS55135097A (en) |
DD (1) | DD149930A5 (en) |
DE (1) | DE2912966A1 (en) |
FI (1) | FI800905A (en) |
IT (1) | IT1130336B (en) |
NL (1) | NL8001738A (en) |
NO (1) | NO800923L (en) |
PL (1) | PL123159B1 (en) |
SE (1) | SE8002355L (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019122703A1 (en) * | 2019-08-23 | 2021-02-25 | Johannes Hübner Fabrik elektrischer Maschinen GmbH | Control unit and method for operating a conveyor |
-
1979
- 1979-03-31 DE DE19792912966 patent/DE2912966A1/en not_active Withdrawn
-
1980
- 1980-03-24 FI FI800905A patent/FI800905A/en not_active Application Discontinuation
- 1980-03-25 NL NL8001738A patent/NL8001738A/en not_active Application Discontinuation
- 1980-03-26 SE SE8002355A patent/SE8002355L/en not_active Application Discontinuation
- 1980-03-28 JP JP3913880A patent/JPS55135097A/en active Pending
- 1980-03-28 NO NO800923A patent/NO800923L/en unknown
- 1980-03-28 DD DD80220019A patent/DD149930A5/en unknown
- 1980-03-28 IT IT21039/80A patent/IT1130336B/en active
- 1980-03-29 PL PL1980223117A patent/PL123159B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
NL8001738A (en) | 1980-10-02 |
SE8002355L (en) | 1980-10-01 |
JPS55135097A (en) | 1980-10-21 |
PL123159B1 (en) | 1982-09-30 |
FI800905A (en) | 1980-10-01 |
DE2912966A1 (en) | 1980-10-09 |
PL223117A1 (en) | 1981-01-30 |
DD149930A5 (en) | 1981-08-05 |
IT8021039A0 (en) | 1980-03-28 |
NO800923L (en) | 1980-10-01 |
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