A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A builders' trestle 10 comprises a pair of upright supports 12, 14 connected by a crossbar 20 for supporting planks or boards to make a platform. At least one of the upright supports has an upward extension 26 above the crossbar to which rails can be attached to form a safety barrier. At least part 26a of the upward extension is hingedly attached to the remainder of the trestle so that it is movable between an upright, rail-supporting position and a downwardly folded position. The trestle may include a latch mechanism 30, such as a bolt and keeper or a stabiliser sleeve, to hold the upward extension in the upright position. The upward extension may be attached to the trestle by a recessed hinge comprising curved ends having interengaging gear teeth or knurling.
A builders' trestle 10 comprises a pair of upright supports 12, 14 connected by a crossbar 20 for supporting planks or boards to make a platform. At least one of the upright supports has an upward extension 26 above the crossbar to which rails can be attached to form a safety barrier. At least part 26a of the upward extension is hingedly attached to the remainder of the trestle so that it is movable between an upright, rail-supporting position and a downwardly folded position. The trestle may include a latch mechanism 30, such as a bolt and keeper or a stabiliser sleeve, to hold the upward extension in the upright position. The upward extension may be attached to the trestle by a recessed hinge comprising curved ends having interengaging gear teeth or knurling.
Builders' trestles
LIAM CLEAR (author)
2016-12-28
Patent
Electronic Resource
English
IPC:
E04G
SCAFFOLDING
,
Baugerüste
Replacing trestles with earthwork
Engineering Index Backfile | 1895
Engineering Index Backfile | 1918
Engineering Index Backfile | 1895
Engineering Index Backfile | 1934