发明名称 Device for stabilizing a ladder
摘要 A device for use in stabilizing an inclined ladder comprises a base member having an upstanding wall portion (15) on which a ladder support member (18) is swivellably mounted by studs (20) which extend through inclined slots and which is clamped by nuts on studs (20), said ladder support member (18) being provided with means for securing the ladder, which may be a pulley or guide (23) and a jamming cleat (27) through which extends a cord (24) provided with a hook (25) which can engage with a rung of a ladder to hold the ladder on the support member (15); and thus the ladder support member (18) can be positioned and clamped in a horizontal position when the base member (10) rests on an inclined surface. <IMAGE>
申请公布号 GB2232710(A) 申请公布日期 1990.12.19
申请号 GB19890013611 申请日期 1989.06.14
申请人 MICHAEL JAMES * KITSON;BARRIE BARTON * KITSON;MICHAEL JAMES * KITSON 发明人 DAVID * WILLIAMS;MICHAEL JAMES * KITSON
分类号 E06C7/44 主分类号 E06C7/44
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