one of the crosspieces, usually rounded, forming the steps of a ladder. a rounded or shaped piece fixed horizontally, for strengthening purposes, as between the legs of a chair. a spoke of a wheel. a stout stick, rod, or bar, especially one of rounded section, forming a piece in somet...
- An intermediate rung (5) on the first section supports a double-armed lever (14), turning on a spindle (15) between vertical and horizontal positions. In the horizontal position, the first arm (16) of the lever forms a support for a rung (5') of the second ladder section, while ...
aExamine the PLC ladder logic program to ensure software modularity and verify the module name and the number of programming rungs in each module. Note any observed discrepancies on the applicable line of the table below and explain in greater clarity and detail in the Comment area of this ...
The drop hook is of the type used on a sliding ladder, the length of which is adjustable by moving lengthways at least one upper ladder component led along the component below, using a cable-pull locking and release is effected by drop-hook fastened to one of the components, with its act...
- An intermediate rung (5) on the first section supports a double-armed lever (14), turning on a spindle (15) between vertical and horizontal positions. In the horizontal position, the first arm (16) of the lever forms a support for a rung (5') of the second ladder section, while ...
Ladder for use on sloping roof of building has two elongated side frames with flat rectangular cross-section and D-section rungs connected to side frames via spacersThe spacers are connected to the broad sides of the rectangular side frames (1,2) by screws which also engage the rungs (3...
Ladder with tubular stiles into each of which a profile section is inserted for locking up multiple rungsFranco Fanfani
The drop hook is of the type used on a sliding ladder, the length of which is adjustable by moving lengthways at least one upper ladder component led along the component below, using a cable-pull locking and release is effected by drop-hook fastened to one of the components, with its ...
A modular assembly lightweight scaffold is assembled from modular components into the required size and height with the structure supported between two upright ladder sections. The ladders (10) are assembled from rectangular hollow section uprights (11) with holes at the rung spacing. The hollow ...
Multi-purpose inter-connectable ladder section - has rung spacing to allow fitting of still ends for fixing by sprung bolts in matching aperturesThe ladder sections (B) have sprung bolts (1, 2) and staple holes (3, 4) for connection one to the other to form extended ladders, 'A' frame...