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John H. Balsley (May 29, 1823 – March 12, 1895) was a master carpenter and inventor, inventing a practical folding wooden stepladder and receiving the first U.S. patent issued for a safety stepladder in the year. He was born in Connellsville, Fayette County, Pennsylvania to George H. and Sarah (Shallenberger) Balsley. His father was also a ...
Fixed ladder, two side members joined by several rungs; affixed to structure with no moving parts. Folding ladder, a ladder in the step ladder style with one or more (usually no more than three) one-way hinges. Ideal for use on uneven ground (e.g. stairs), as a trestle or when fully extended a Fixed ladder.
Step stool with 2 steps. Step stools are halfway between a ladder and a stool, being used, as a support platform, for reaching targets that are at heights between approximately 2 and 3 metres (6.6 and 9.8 ft). The most common modern type is made with two separate ladders connected to each other at the upper end, where there is a platform with ...
An attic ladder (US) ... Folding ladders are usually found in lengths between 8 and 16 feet (2.4 and 4.9 m), while the greatest length is usually 10 feet (3.0 m). ...
A step chair, also called a ladder chair, a library chair, a convertible chair or a Franklin chair, is a piece of furniture which folds to become either a chair or a small set of steps or stairs. Building one (usually in the diagonal-side-cut style) is a popular DIY project. [1] [2] [3]
A Jacob's Ladder unfolded Watch toy in action (Ogg Theora format, 1.7 MB) A Jacob's ladder (also magic tablets, Chinese blocks, and klick-klack toy [1]) is a folk toy consisting of blocks of wood held together by strings or ribbons. When the ladder is held at one end, blocks appear to cascade down the strings.