GB776475A - An improved portal crane capable of travelling round curves - Google Patents
An improved portal crane capable of travelling round curvesInfo
- Publication number
- GB776475A GB776475A GB1110/55A GB111055A GB776475A GB 776475 A GB776475 A GB 776475A GB 1110/55 A GB1110/55 A GB 1110/55A GB 111055 A GB111055 A GB 111055A GB 776475 A GB776475 A GB 776475A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- column
- motors
- driving
- curves
- 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
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/04—Travelling gear incorporated in or fitted to trolleys or cranes to facilitate negotiation of curves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/16—Travelling gear incorporated in or fitted to trolleys or cranes with means for maintaining alignment between wheels and track
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
776,475. Motor vehicle driving gear. MASCHINENFABRIK AUGSBURG-NURNBERG AKT.-GES. Jan. 13, 1955 [Jan. 23, 1954], No. 1110/55. Class 79(2). [Also in Group XXX] The gantry 2 of a portal crane is pivoted at 1, 1a, to the supporting columns 3, 4 and relative motion about the pivots controls the driving motors to establish the proper difference of speed between the two columns when the crane is negotiating curves. In the form illustrated an auxiliary motor 11 assists the normal motor 10 driving the column 3 on the outside of the curve and is controlled by resist ance varied by arms 8, 8a on the gantry operated by projections 9, 9a on the column 3. The motors 10, 11 are three-phase slip-ring motors and the controlling resistors are inserted in the armature circuit of the motor 11. Where the track curves in opposite directions the motor 11 may be reversed to oppose the torque of the motor 10 or a second auxiliary motor (11), controlled by devices on the column 4 may assist the motor 10 driving that column. A single transmission gear 12 provides different transmission ratios for the motors 10 and 11. The motor 11 may be brought into operation by a manual control or automatically by abutments on the track.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE776475X | 1954-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB776475A true GB776475A (en) | 1957-06-05 |
Family
ID=6686540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1110/55A Expired GB776475A (en) | 1954-01-23 | 1955-01-13 | An improved portal crane capable of travelling round curves |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB776475A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3200889A (en) * | 1964-01-28 | 1965-08-17 | Daniel C Ivy | Apparatus for farm cultivating and harvesting |
-
1955
- 1955-01-13 GB GB1110/55A patent/GB776475A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3200889A (en) * | 1964-01-28 | 1965-08-17 | Daniel C Ivy | Apparatus for farm cultivating and harvesting |
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