A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A ladder moving device utilizes an A-frame ladder with a plurality of wheels disposed under each leg, each of which are in mechanical communication to a hand crank. The hand crank is disposed adjacent the upper end of the ladder. Each wheel has a locking mechanism.
A ladder moving device utilizes an A-frame ladder with a plurality of wheels disposed under each leg, each of which are in mechanical communication to a hand crank. The hand crank is disposed adjacent the upper end of the ladder. Each wheel has a locking mechanism.
Ladder moving mechanism
KUZMIN YAKOV I (author)
2023-01-24
Patent
Electronic Resource
English
IPC:
E06C
LADDERS
,
Leitern