GB277395A - Improvements in portable fire escapes - Google Patents
Improvements in portable fire escapesInfo
- Publication number
- GB277395A GB277395A GB729726A GB729726A GB277395A GB 277395 A GB277395 A GB 277395A GB 729726 A GB729726 A GB 729726A GB 729726 A GB729726 A GB 729726A GB 277395 A GB277395 A GB 277395A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drum
- passages
- diaphragm
- oil
- spindle
- 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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B1/00—Devices for lowering persons from buildings or the like
- A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
- A62B1/08—Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys
- A62B1/12—Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys hydraulically operated
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Braking Arrangements (AREA)
Abstract
277,395. Redmond, J. D. March 16, 1926. Energy - absorbing elements; actuated or applied by speed-regulators. -A portable fire-escape comprises a cable-drum 1 mounted to rotate on bearings 4 in a casing 4<1> to which a body-strap is attached, and fluidfriction braking means for limiting the speed automatically, the rotation of the drum forcing oil through adjustable passages in a container. As shown in Fig 1, the drum 1 and the fixed spindle 3 are hollow and filled with oil. Cams 5 in the drum drive a diaphragm 6 backwards and forwards along the spindle, forcing the oil through orifices 7, 8<1>, 8 from one side cf the diaphragm to the other. The orifices 8' are guarded by spring flaps 9 which are deflected on increase of speed so as to reduce the passages. In a modification, Fig. 7, passages 40 are controlled by spring plates 43, and passages 44 damp the action of the springs. As shown in Fig. 3, in which the drum and diaphragm are omitted from the drawing, the passage 12 through the central disc 11 in the spindle is varied by adjusting the disc by turning the wheel 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB729726A GB277395A (en) | 1926-03-16 | 1926-03-16 | Improvements in portable fire escapes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB729726A GB277395A (en) | 1926-03-16 | 1926-03-16 | Improvements in portable fire escapes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB277395A true GB277395A (en) | 1927-09-16 |
Family
ID=9830397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB729726A Expired GB277395A (en) | 1926-03-16 | 1926-03-16 | Improvements in portable fire escapes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB277395A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2143495A (en) * | 1983-06-02 | 1985-02-13 | Ostrobrod Meyer | Safety device |
-
1926
- 1926-03-16 GB GB729726A patent/GB277395A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2143495A (en) * | 1983-06-02 | 1985-02-13 | Ostrobrod Meyer | Safety device |
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