GB723723A - Vehicle ramps - Google Patents
Vehicle rampsInfo
- Publication number
- GB723723A GB723723A GB2955552A GB2955552A GB723723A GB 723723 A GB723723 A GB 723723A GB 2955552 A GB2955552 A GB 2955552A GB 2955552 A GB2955552 A GB 2955552A GB 723723 A GB723723 A GB 723723A
- Authority
- GB
- United Kingdom
- Prior art keywords
- jack
- cylinder
- ramp
- valve
- relief
- 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
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
- B60P1/43—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading using a loading ramp mounted on the vehicle
Abstract
723,723. Ramps on vehicles for loading. TELEHOIST, Ltd. Nov. 19, 1953 [Nov. 22, 1952], No. 29555/52. Class 78 (4). The end section of a ramp, Fig. 1, is folded and unfolded as the main part a moves by a jack h, which is moved in one direction by fluid displaced from the jack b, for moving the main section a, and which is controlled by a valve m which responds to the pressure in the jack b. The jack b is connected to swing a lever d connected by a link e to a bracket f on the ramp a while the jack h is pivoted to the main ramp a and swings an arm j rigid with the folding portion g. The end of the cylinder b adjacent its pivot on the vehicle is connected by the valve m and a conduit k to the jack h. When the ramp is to be lowered the supply pressure on the control valve m is released by a manually operable valve so that the spindle n of the valve m moves to the position shown in Fig. 3 to connect the cylinder b to the cylinder h so that the weight of the descending ramp forces liquid from cylinder b into cylinder h to unfold the portion g. When the unfolding is complete liquid is discharged to a relief pipe r through a relief valve p. When pressure liquid is connected to the jack b the spindle n is moved to the position shown in Fig. 2 to connect the cylinder h directly to the relief conduit r. Two or more jacks may be associated with each part of the ramp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2955552A GB723723A (en) | 1952-11-22 | 1952-11-22 | Vehicle ramps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2955552A GB723723A (en) | 1952-11-22 | 1952-11-22 | Vehicle ramps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB723723A true GB723723A (en) | 1955-02-09 |
Family
ID=10293402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2955552A Expired GB723723A (en) | 1952-11-22 | 1952-11-22 | Vehicle ramps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB723723A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3694840A (en) * | 1969-07-04 | 1972-10-03 | Dermont F Loblick | Dockboard raising mechanism |
| US4365374A (en) * | 1980-08-04 | 1982-12-28 | Kelley Company Inc. | Hydraulically operated dockboard |
| US4525887A (en) * | 1983-07-05 | 1985-07-02 | Kelley Company, Inc. | Counterbalancing mechanism for the ramp of a dockboard |
| GB2164625A (en) * | 1984-02-21 | 1986-03-26 | Philip Sanderson Horn | A bale-transporting trailer |
| US4792274A (en) * | 1987-04-30 | 1988-12-20 | Cockram Robert E | Utility trailer including automatic tailgate assembly |
| FR2980970A1 (en) * | 2011-10-10 | 2013-04-12 | Vincent Paolantonacci | Actuation device for actuating approach ramp of e.g. electric wheel chair inside utility car, has approach ramp rotating around axis of end piece, so that articulated arm guides ramp to pass from storage position to deployed position |
| CN105015397A (en) * | 2015-08-07 | 2015-11-04 | 重庆公路运输（集团）有限公司大件分公司 | Hydraulic crawling ladder |
| CN109515461A (en) * | 2018-12-19 | 2019-03-26 | 株洲时代电子技术有限公司 | A kind of articulated car transfer bridge device |
| CN109515462A (en) * | 2018-12-19 | 2019-03-26 | 株洲时代电子技术有限公司 | A kind of articulated car transfer bridge device operational method |
-
1952
- 1952-11-22 GB GB2955552A patent/GB723723A/en not_active Expired
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3694840A (en) * | 1969-07-04 | 1972-10-03 | Dermont F Loblick | Dockboard raising mechanism |
| US4365374A (en) * | 1980-08-04 | 1982-12-28 | Kelley Company Inc. | Hydraulically operated dockboard |
| US4525887A (en) * | 1983-07-05 | 1985-07-02 | Kelley Company, Inc. | Counterbalancing mechanism for the ramp of a dockboard |
| GB2164625A (en) * | 1984-02-21 | 1986-03-26 | Philip Sanderson Horn | A bale-transporting trailer |
| US4792274A (en) * | 1987-04-30 | 1988-12-20 | Cockram Robert E | Utility trailer including automatic tailgate assembly |
| FR2980970A1 (en) * | 2011-10-10 | 2013-04-12 | Vincent Paolantonacci | Actuation device for actuating approach ramp of e.g. electric wheel chair inside utility car, has approach ramp rotating around axis of end piece, so that articulated arm guides ramp to pass from storage position to deployed position |
| CN105015397A (en) * | 2015-08-07 | 2015-11-04 | 重庆公路运输（集团）有限公司大件分公司 | Hydraulic crawling ladder |
| CN105015397B (en) * | 2015-08-07 | 2018-01-30 | 重庆公路运输（集团）有限公司大件分公司 | Hydraulic climbing ladder |
| CN109515461A (en) * | 2018-12-19 | 2019-03-26 | 株洲时代电子技术有限公司 | A kind of articulated car transfer bridge device |
| CN109515462A (en) * | 2018-12-19 | 2019-03-26 | 株洲时代电子技术有限公司 | A kind of articulated car transfer bridge device operational method |
| CN109515461B (en) * | 2018-12-19 | 2020-08-25 | 株洲时代电子技术有限公司 | Railway flatcar ferry bridge device |
| CN109515462B (en) * | 2018-12-19 | 2020-09-15 | 株洲时代电子技术有限公司 | Operation method of railway flatcar ferry bridge device |
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