|
GB516106A
|
|
Improvements in or relating to trough-section metal
|
|
GB522979A
|
|
Improvements in linings for air-raid shelters, underground roadways, tunnels and like constructions
|
|
GB493036A
|
|
Improvements in or relating to mine arches and their connections
|
|
GB506453A
|
|
All-steel supports for mine roadways, under ground air-raid shelters and like miningoperations
|
|
GB513907A
|
|
Steel, gas sealed air raid shelters of unit construction
|
|
GB487826A
|
|
Lugged stilts for roof supports in mines
|
|
GB486079A
|
|
Improved arrangement of mine-arch supports
|
|
GB483215A
|
|
Improvements in rolled metal mine arches and like pit supports
|
|
GB479212A
|
|
Fluted bars for general industrial supporting uses such as strata supports in mines,and beams
|
|
GB473105A
|
|
Attachment brackets for supporting insulators, carrying hooks and like fittings on mine arches and structural sections
|
|
GB459576A
|
|
Yielding attachments for roof supporting constructions in mines comprising members, which, when in action, pivot about sliding fulcrum blocks
|
|
GB449668A
|
|
Improvements in rolled metal props, struts and like shoring members
|
|
GB426936A
|
|
Improved reversible fishplates for joining i and h section metal, mine arches and like flanged section metal members
|
|
GB429325A
|
|
Improvements in rolled metal props, struts and like shoring members of splayed h sectional form
|
|
GB440896A
|
|
Improved means for securing rails to metal sleepers
|
|
GB418122A
|
|
Improved method and means for erecting and supporting mine arches
|
|
GB421437A
|
|
Reversible fishplates for joining i and h section metal, mine arch sections, and like flanged section metal members
|
|
GB425189A
|
|
Contractible yielding continuous linings for underground roadways in mines and tunnels
|
|
GB423611A
|
|
Improvements in and relating to joints for mine arch section metal bars
|
|
GB405551A
|
|
Improvements in rolled mine arch girder sections and their accompanying jointplates
|
