GB641874A - Improvements in and relating to overhead travelling cranes - Google Patents
Improvements in and relating to overhead travelling cranesInfo
- Publication number
- GB641874A GB641874A GB2464448A GB2464448A GB641874A GB 641874 A GB641874 A GB 641874A GB 2464448 A GB2464448 A GB 2464448A GB 2464448 A GB2464448 A GB 2464448A GB 641874 A GB641874 A GB 641874A
- Authority
- GB
- United Kingdom
- Prior art keywords
- runway
- runways
- bar
- pinion
- bus
- 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
- B66C7/00—Runways, tracks or trackways for trolleys or cranes
- B66C7/12—Devices for changing direction of travel or for transferring from one runway to another; Crossings; Combinations of tracks of different gauges
- B66C7/14—Runway interlocking devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
641,874. Elevated railways; traversers. WEIGNER, O. Sept. 21, 1948, No. 24644. [Classes 104 (ii) and 104 (iii)] The traversible runway 8 of an overhead travelling crane arranged to be brought into end-to-end alignment with one or more fixed runways 6, or the runway of a similar crane, is adapted to be locked in position by an interlock comprising a rack bar 5 which is mounted in guides 7 near the end of the fixed runway 6 and engaged by a toothed wheel or sector 3 which projects it into engagement with a locking- plate 9 at the end of the movable runway 8. Rotation of the toothed wheel 3 may be effected by pulling on chains 4a, 4b attached to the ends of a double-armed lever 1a secured to the wheel shaft 2, or a solenoid or other means may be used. In its movement the rack bar 5 engages a pinion 10 mounted on the runway 8 and thereby swings a stop-lever 11 out of the path of the load-carrying trolley 13. A similar stop - lever 15 associated with the runway 6 is moved out of the way by a pinion 14 driven by the pinion 3. The rotation of the pinion 10 on the movable runway 8 also swings a lever 20 which opens a limit switch 19 in the circuit of the motor driving the runway, which is thus rendered inoperative by the interlocking of the two runways. A stop is also provided to prevent the rack bar 5 from being projected into the locking position when the runway upon which it is mounted is not aligned with another runway for the transference of a trolley; this stop comprises a sector plate 39, Fig. 5, pivoted at its radial centre 40 and suspended with its plane in the path of the rack bar 5 until pushed out of the way by lateral contact with a runway 8 moving into alignment. Fig. 4 shows a pair of similar traversible runways 29, 30 which run on parallel tracks in a building provided with vertical roof-supporting columns 31, one runway, e.g. 30, being provided with a hinged extremity 32 which can be swung upwardly, as shown, to avoid the columns during traversing, and lowered to bridge the gap between the runways. A counterweight 34 balances the hinged portion, which is operated by pulling on a chain 36 passing around a quadrant 37. Conductors.-When the runways carry motordriven trolleys 13 fed from bus-bars thereon, the bus-bars of aligned runways may be coupled automatically, simultaneously with the mechanical interlocking by the rack-bar 5. A socket 21 fixed in the end of runway 8 and connected to a bus-bar 22 receives a plug 23 which is slidable in horizontal guides 27 in the fixed runway 6 and connected to a bus-bar 24 by a flexible lead, the insertion and withdrawal of the plug being effected by an arcuate slotted link 26 connected to the plug at one end. The slot receives a pin 28 at the end of an arm 25 secured to the shaft 2 of the pinion 3 which is rotated to operate the interlocking rack-bar 5.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2464448A GB641874A (en) | 1948-09-21 | 1948-09-21 | Improvements in and relating to overhead travelling cranes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2464448A GB641874A (en) | 1948-09-21 | 1948-09-21 | Improvements in and relating to overhead travelling cranes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB641874A true GB641874A (en) | 1950-08-23 |
Family
ID=10214975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2464448A Expired GB641874A (en) | 1948-09-21 | 1948-09-21 | Improvements in and relating to overhead travelling cranes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB641874A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1131375B (en) * | 1960-04-02 | 1962-06-14 | Demag Zug Gmbh | Carrier for single-girder suspension cranes |
-
1948
- 1948-09-21 GB GB2464448A patent/GB641874A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1131375B (en) * | 1960-04-02 | 1962-06-14 | Demag Zug Gmbh | Carrier for single-girder suspension cranes |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2718320A (en) | Article-handling apparatus | |
US3456899A (en) | Winch assembly | |
GB641874A (en) | Improvements in and relating to overhead travelling cranes | |
US2035355A (en) | Automatic lift | |
US2360505A (en) | Electrically controlled hoist for monorails | |
US2493099A (en) | Elevating device for raising gin poles on trucks | |
US2564953A (en) | Automatic switchgear for overhead railways | |
US2411218A (en) | Traveling crane | |
US2471513A (en) | Conveyer locking and aligning system | |
GB741783A (en) | Improvements in devices for lifting and tilting motor vehicles | |
GB651858A (en) | Arrangement in trolleys with hanging load | |
US1481868A (en) | Conveyer apparatus | |
GB632879A (en) | Improvements in or relating to conveyor systems | |
GB598580A (en) | Improvements in cargo hoists | |
GB814776A (en) | Clamshell bucket-turning mechanism for bulk material handling apparatus | |
US3710728A (en) | Outdoor crane | |
US2663865A (en) | Signal for lifting apparatus | |
US2952222A (en) | Overhead carriage stop device mounted upon a beam along which the carriage travels | |
GB971316A (en) | Conveyor installation | |
FR2223297A1 (en) | Crane crab transfer device for travelling gantries - raises one gantry end into line with other and locks during transfer | |
GB1000555A (en) | Improvements in or relating to lifting devices | |
GB726089A (en) | Improvements in or relating to conveyor systems | |
GB622546A (en) | An improved system for parking motor cars and other vehicles | |
US2958994A (en) | Cradle positioning and locking mechanism for cable-stranding apparatus | |
US2891484A (en) | Overhead travelling crane interlock system |