GB177849A - Improvements in portable hoists or elevators - Google Patents
Improvements in portable hoists or elevatorsInfo
- Publication number
- GB177849A GB177849A GB3632820A GB3632820A GB177849A GB 177849 A GB177849 A GB 177849A GB 3632820 A GB3632820 A GB 3632820A GB 3632820 A GB3632820 A GB 3632820A GB 177849 A GB177849 A GB 177849A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- motor
- belt
- platform
- hoists
- 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
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/02—Stationary loaders or unloaders, e.g. for sacks
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Transportation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Control Of Direct Current Motors (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Jib Cranes (AREA)
Abstract
177,849. Rardaker, J. T. Dec. 29, 1920. Winch-actuated hoists with guided platforms. -In portable hoists the electric motor driving the hoisting mechanism is mounted on a pivoted table and is put in gear with the winding drum by tilting the table, means being provided whereby the supply of current is cut off when the platform reaches any desired height. The motor 6, Fig. 1, is mounted on a table 4 which is pivoted in the base 2 and can be tilted by depressing a pedal 5 against the resistance of a spring 5a. A belt 8 passes round a flanged pulley 7 on the motor shaft and a pulley 9 on a countershaft 10 which is geared to the shaft of the winding drum 13. In the position shown, the belt 8 is loose and the shaft 10 idle, but if the table 4 is tilted, the belt is tightened and the winding mechanism is driven. A ratchet wheel 28 on the motor shaft is engaged by a pawl when the motor is in the position shown, but is freed when the table is lowered. The descent of the platform is controlled by a brake 20a applied by a pedal 19. In order that current may be cut off at any desired height of the platform, a switch 23 is non-rotatably mounted on a threaded shaft 22 geared to the shaft 13a and a stop piece 24 slidably mounted on a graduated indicator is placed in its path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3632820A GB177849A (en) | 1920-12-29 | 1920-12-29 | Improvements in portable hoists or elevators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3632820A GB177849A (en) | 1920-12-29 | 1920-12-29 | Improvements in portable hoists or elevators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB177849A true GB177849A (en) | 1922-03-29 |
Family
ID=10387130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3632820A Expired GB177849A (en) | 1920-12-29 | 1920-12-29 | Improvements in portable hoists or elevators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB177849A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108383043A (en) * | 2017-01-16 | 2018-08-10 | 浙江国自机器人技术有限公司 | A kind of modular fork-lift type transfer robot |
-
1920
- 1920-12-29 GB GB3632820A patent/GB177849A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108383043A (en) * | 2017-01-16 | 2018-08-10 | 浙江国自机器人技术有限公司 | A kind of modular fork-lift type transfer robot |
| CN108383043B (en) * | 2017-01-16 | 2020-04-07 | 浙江国自机器人技术有限公司 | Modular forklift type transfer robot |
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