GB190520591A - Improvements in and relating to Hoisting Devices. - Google Patents
Improvements in and relating to Hoisting Devices.Info
- Publication number
- GB190520591A GB190520591A GB190520591DA GB190520591A GB 190520591 A GB190520591 A GB 190520591A GB 190520591D A GB190520591D A GB 190520591DA GB 190520591 A GB190520591 A GB 190520591A
- Authority
- GB
- United Kingdom
- Prior art keywords
- head
- load
- wheel
- angle
- constantly
- 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
Landscapes
- General Details Of Gearings (AREA)
Abstract
20,591. Schmick, H. J. Oct. 11. Pulley - blocks.- Relates to hoisting- devices, and more particularly to the gearing thereof. In the construction shown in Fig. 2, the hand chainwheel 5 and a head 2 revolve together. On the face of the head 2 are projecting members 14, Fig. 5, engaging the worm or gear wheel 15 on the shaft of the load wheel or drum. The members 14 are cycloidal in form, and, in order to prevent binding, the angle of the outer faces is made to increase constantly from the root to the point of the teeth, while the angle of the inner faces diminishes constantly in the same ratio. A wheel 25, provided with internal ratchet teeth and under the control of a spring-controlled brake block 29, is locked to the head 2 when lowering by a spring pawl 27, so as to sustain the load. In a modification, Fig. 6, the self-sustaining gear is dispensed with, the load being supported directly by the projections 14 on the head 2, which is driven from a crown pinion 35.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB190520591T | 1905-10-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB190520591A true GB190520591A (en) | 1906-01-25 |
Family
ID=32200322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB190520591D Expired GB190520591A (en) | 1905-10-11 | 1905-10-11 | Improvements in and relating to Hoisting Devices. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB190520591A (en) |
-
1905
- 1905-10-11 GB GB190520591D patent/GB190520591A/en not_active Expired
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