CA2160125A1 - Raising and lowering columns - Google Patents
Raising and lowering columnsInfo
- Publication number
- CA2160125A1 CA2160125A1 CA002160125A CA2160125A CA2160125A1 CA 2160125 A1 CA2160125 A1 CA 2160125A1 CA 002160125 A CA002160125 A CA 002160125A CA 2160125 A CA2160125 A CA 2160125A CA 2160125 A1 CA2160125 A1 CA 2160125A1
- Authority
- CA
- Canada
- Prior art keywords
- column
- rams
- raising
- pivotal mountings
- bosses
- 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.)
- Granted
Links
Landscapes
- Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
- Jib Cranes (AREA)
- Handcart (AREA)
Abstract
An upper part (30) of a column (28) can be raised and lowered by means of rams (11) which are normally carried by a counterbalance unit but which can be attached to the column. The rams (11) are mounted on a chassis (10) of the unit by means of disengageable pivotal mountings (22/23) and are normally carried in a storage position (Fig.2). To mount the rams on the column, they are first swung about the pivotal mountings, and are then extended to bring bosses (19) into engagement with gussets (32) on the upper column part (30). Thereafter, the rams are retracted to lift them out of their pivotal mountings (22/23), and are swung about the bosses (19) to bring them into engagement with further gussets (31) on a base part (29) of the column.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9307210.6 | 1993-04-06 | ||
GB939307210A GB9307210D0 (en) | 1993-04-06 | 1993-04-06 | Raising and lowering columns |
GB939313399A GB9313399D0 (en) | 1993-06-29 | 1993-06-29 | Raising and lowering columns |
GB9313399.9 | 1993-06-29 | ||
PCT/GB1994/000645 WO1994023161A1 (en) | 1993-04-06 | 1994-03-28 | Raising and lowering columns |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2160125A1 true CA2160125A1 (en) | 1994-10-13 |
CA2160125C CA2160125C (en) | 2005-11-22 |
Family
ID=35474743
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002160125A Expired - Lifetime CA2160125C (en) | 1993-04-06 | 1994-03-28 | Raising and lowering columns |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2160125C (en) |
-
1994
- 1994-03-28 CA CA002160125A patent/CA2160125C/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2160125C (en) | 2005-11-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20140328 |