CA2160125A1 - Raising and lowering columns - Google Patents

Raising and lowering columns

Info

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
Application number
CA002160125A
Other languages
French (fr)
Other versions
CA2160125C (en
Inventor
Alan John Jenvey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Abacus Holdings Ltd
Original Assignee
Alan John Jenvey
Abacus Holdings Limited
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from GB939307210A external-priority patent/GB9307210D0/en
Priority claimed from GB939313399A external-priority patent/GB9313399D0/en
Application filed by Alan John Jenvey, Abacus Holdings Limited filed Critical Alan John Jenvey
Priority claimed from PCT/GB1994/000645 external-priority patent/WO1994023161A1/en
Publication of CA2160125A1 publication Critical patent/CA2160125A1/en
Application granted granted Critical
Publication of CA2160125C publication Critical patent/CA2160125C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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.
CA002160125A 1993-04-06 1994-03-28 Raising and lowering columns Expired - Lifetime CA2160125C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB939307210A GB9307210D0 (en) 1993-04-06 1993-04-06 Raising and lowering columns
GB9307210.6 1993-04-06
GB9313399.9 1993-06-29
GB939313399A GB9313399D0 (en) 1993-06-29 1993-06-29 Raising and lowering columns
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)

Also Published As

Publication number Publication date
CA2160125C (en) 2005-11-22

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Effective date: 20140328