GB1202317A - Improvements in hydraulically operated lifts for road vehicles - Google Patents
Improvements in hydraulically operated lifts for road vehiclesInfo
- Publication number
- GB1202317A GB1202317A GB3271768A GB3271768A GB1202317A GB 1202317 A GB1202317 A GB 1202317A GB 3271768 A GB3271768 A GB 3271768A GB 3271768 A GB3271768 A GB 3271768A GB 1202317 A GB1202317 A GB 1202317A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rams
- fluid
- prv
- april
- gate
- 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
- B60P1/44—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading having a loading platform thereon raising the load to the level of the load-transporting element
- B60P1/4414—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading having a loading platform thereon raising the load to the level of the load-transporting element and keeping the loading platform parallel to the ground when raising the load
- B60P1/4421—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading having a loading platform thereon raising the load to the level of the load-transporting element and keeping the loading platform parallel to the ground when raising the load the loading platform being carried in at least one vertical guide
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
1,202,317. Hydraulic lifts for vehicles. HENRY J. FIRMAN Ltd. 30 April, 1969 [16 April, 1968; 9 July, 1968], Nos. 17744/68 and 32717/68. Heading B8E. A vehicle tail-gate 1, Fig. 1, is raised and lowered by hydraulic rams 4 which are pivoted to the tail-gate at 12 and are provided with carriages 3 which run in tubular guides 2. Fig. 7 shows an embodiment in which the guides 3 comprise a pair of side-plates 19 to which the piston rod 7 of the ram 5 is coupled by a nut 21 which provides a lost-motion connection. Fluid may be supplied to the rams 4 as shown in Fig. 4 in which R and P are reservoir and pump, NVR is a non-return valve, and PRV 1 and PRV 2 are pressure release valves. In an alternative arrangement, Fig. 5 (not shown), fluid is first supplied to a pair of auxiliary cylinders which have their piston rods attached to a common cross-head. This ensures that an equal amount of fluid reaches each of the rams 4.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1774468 | 1968-04-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1202317A true GB1202317A (en) | 1970-08-12 |
Family
ID=10100475
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3271768A Expired GB1202317A (en) | 1968-04-16 | 1968-04-16 | Improvements in hydraulically operated lifts for road vehicles |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1202317A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3343724A1 (en) * | 1982-12-03 | 1984-06-07 | Niccoli & Naldoni S.p.A., 50141 Firenze | Lifting device for persons and goods, which can be combined with a vehicle, in particular a railway carriage |
WO1988006108A1 (en) * | 1987-02-21 | 1988-08-25 | Frederick George Wilson | Improved lift platform for road vehicles and trailers |
US5110251A (en) * | 1989-01-17 | 1992-05-05 | Gray Ralph E | Hydraulic platform lift for truck trailers |
GB2252952A (en) * | 1990-10-12 | 1992-08-26 | Ross & Bonnyman Eng Ltd | Vehicle tail-lift |
ES2049614A2 (en) * | 1991-11-11 | 1994-04-16 | Caste E Bassega A | Loading and unloading platform of the box of a transport vehicle |
US7635248B2 (en) | 2007-07-27 | 2009-12-22 | Sidney Slide L.P. | Truck bed assembly with integral partial sliding deck with pivoting inclined towers for raising and lowering a sliding deck |
-
1968
- 1968-04-16 GB GB3271768A patent/GB1202317A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3343724A1 (en) * | 1982-12-03 | 1984-06-07 | Niccoli & Naldoni S.p.A., 50141 Firenze | Lifting device for persons and goods, which can be combined with a vehicle, in particular a railway carriage |
WO1988006108A1 (en) * | 1987-02-21 | 1988-08-25 | Frederick George Wilson | Improved lift platform for road vehicles and trailers |
US4930971A (en) * | 1987-02-21 | 1990-06-05 | Wilson Frederick G | Lift platform for road vehicles and trailers |
AU606664B2 (en) * | 1987-02-21 | 1991-02-14 | Frederick George Wilson | Improved lift platform for road vehicles and trailers |
US5110251A (en) * | 1989-01-17 | 1992-05-05 | Gray Ralph E | Hydraulic platform lift for truck trailers |
GB2252952A (en) * | 1990-10-12 | 1992-08-26 | Ross & Bonnyman Eng Ltd | Vehicle tail-lift |
ES2049614A2 (en) * | 1991-11-11 | 1994-04-16 | Caste E Bassega A | Loading and unloading platform of the box of a transport vehicle |
US7635248B2 (en) | 2007-07-27 | 2009-12-22 | Sidney Slide L.P. | Truck bed assembly with integral partial sliding deck with pivoting inclined towers for raising and lowering a sliding deck |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
PE20 | Patent expired after termination of 20 years |