GB190614267A - Improvements in Overload Safety Gear for Overhead Travelling Cranes. - Google Patents
Improvements in Overload Safety Gear for Overhead Travelling Cranes.Info
- Publication number
- GB190614267A GB190614267A GB190614267DA GB190614267A GB 190614267 A GB190614267 A GB 190614267A GB 190614267D A GB190614267D A GB 190614267DA GB 190614267 A GB190614267 A GB 190614267A
- Authority
- GB
- United Kingdom
- Prior art keywords
- weight
- rope
- drums
- band
- stress
- 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
Abstract
14,267. Davy Bros., and Holmes, T. E. June 21. Rope or chain stress indicators and stress-limiting devices.-In a device for preventing injury to a crane in consequence of the full stress of an excessive load being thrown upon the hoisting-rope, the ail portion of the winding-rope or its equivalent A is attached to a flexible band B, which is led over friction drums E, Candconnected to a counterweight D bearing a predetermined ratio to the maximum working load, The drum E is adjustably mounted to regulate the arc of contact of the drum C and band B. The weight D slides on rods d and normally rests on springs J, which serve to cushion the weight should it fall from its elevated position. An excess load causes the band to slide over the drums, which are prevented from rotation iu that direction by ratchets and pawls, and the weight is raised. The weight may be caused to ring a bell M. When the tension decreases, the drums slide over the pawls and the weight falls back on to the springs. The tail end of the rope may pass directly over the drums. Overwinding of the weight H is prevented by its encountering some portion of the crane structure.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB190614267T | 1906-06-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB190614267A true GB190614267A (en) | 1907-04-04 |
Family
ID=32486921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB190614267D Expired GB190614267A (en) | 1906-06-21 | 1906-06-21 | Improvements in Overload Safety Gear for Overhead Travelling Cranes. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB190614267A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2897050A1 (en) * | 2006-02-07 | 2007-08-10 | Roger Communeau | Weight for testing hoists or travelling cranes has main and auxiliary concrete blocks connected by coupling mechanism with side access |
| US8960460B2 (en) | 2009-03-09 | 2015-02-24 | Manitowoc Crane Companies, Llc | Counterweight block and assemblies for cranes |
-
1906
- 1906-06-21 GB GB190614267D patent/GB190614267A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2897050A1 (en) * | 2006-02-07 | 2007-08-10 | Roger Communeau | Weight for testing hoists or travelling cranes has main and auxiliary concrete blocks connected by coupling mechanism with side access |
| US8960460B2 (en) | 2009-03-09 | 2015-02-24 | Manitowoc Crane Companies, Llc | Counterweight block and assemblies for cranes |
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