HYDRAULIC JACK Russian patent published in 2007 - IPC B66F1/08 B66F3/24 

FIELD: mechanical engineering; lifting facilities.

SUBSTANCE: invention relates to hydraulic jacks designed for rescue operations at recovery after earthquakes, emergencies, catastrophes on ground and in water at depth up to 10 m. proposed jack consists of body 1, control unit, and cylinder housing 2, and connecting, safety, support and fastening members. Cylinder housing 2 is fitted in hole of jack body 1, axis 3 of housing 2 is square to axis 4 of body 1 and divides height of body 1 in ratio 2:3 in direction from bottom 5 of body 1. Jack body 1 is made in form of cup with blind bottom 5 made in form of shaped surface. Grooves are made on surface of body 1 from side of connecting end face. Peculiarities of design of jack are described in dependent claims.

EFFECT: improved reliability and convenience in operation.

16 cl, 11 dwg