GB837511A - Retractable jack support - Google Patents
Retractable jack supportInfo
- Publication number
- GB837511A GB837511A GB1416858A GB1416858A GB837511A GB 837511 A GB837511 A GB 837511A GB 1416858 A GB1416858 A GB 1416858A GB 1416858 A GB1416858 A GB 1416858A GB 837511 A GB837511 A GB 837511A
- Authority
- GB
- United Kingdom
- Prior art keywords
- support
- linkage
- rigid
- plates
- trailer
- 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
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S9/00—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks
- B60S9/02—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting
- B60S9/04—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting mechanically
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Agricultural Machines (AREA)
Abstract
837,511. Trailer vehicle rest bars. HANSEN, E. K. May 2, 1958, No. 14168/58. Class 108(2) A retractable support 28 for the front end of a trailer is held in both operative (Fig. 3) and retracted (Fig. 5) positions by the action of a toggle linkage 39, 40. The support 28 is pivoted to plates 35 rigid the trailer frame (not shown) at 36. One member 40 of the toggle linkage is pivotally connected to the support 28 at 49 and is connected at an intermediate point 46 with one end of the second member 39 of the linkage. The other end of the member 39 is connected to the plates 35 at 43. In the operative position the free end of the member 40 engages (at 50) a member rigid with the trailer frame and the linkage is held in this over-centre position by a spring 53. On depressing a finger piece 57 of the member 40, the toggle is broken, -and the support 28 may be swung to the retracted position. The foot 27 of the support 28 may be raised or lowered by a handle 29. A hitch member 23 for the tractor is rigid with the plates 35.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1416858A GB837511A (en) | 1956-05-02 | 1956-05-02 | Retractable jack support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1416858A GB837511A (en) | 1956-05-02 | 1956-05-02 | Retractable jack support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB837511A true GB837511A (en) | 1960-06-15 |
Family
ID=10036235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1416858A Expired GB837511A (en) | 1956-05-02 | 1956-05-02 | Retractable jack support |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB837511A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4871183A (en) * | 1987-02-12 | 1989-10-03 | Moss Metal Fabrications | Trailer dolly |
| US8876085B2 (en) | 2009-09-12 | 2014-11-04 | Progress Mfg. Inc. | Jack foot retraction system |
-
1956
- 1956-05-02 GB GB1416858A patent/GB837511A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4871183A (en) * | 1987-02-12 | 1989-10-03 | Moss Metal Fabrications | Trailer dolly |
| US8876085B2 (en) | 2009-09-12 | 2014-11-04 | Progress Mfg. Inc. | Jack foot retraction system |
| US10252381B2 (en) | 2009-09-12 | 2019-04-09 | Progress Mfg. Inc. | Jack foot retraction system |
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