MULTI-PURPOSE SUPPORT Russian patent published in 2004 - IPC

FIELD: supports for pipe lines drawn inside protective casing at erection of passages under automobile and railway roads.

SUBSTANCE: proposed multi-purpose support includes bodies of revolution in form of rollers and protective box with bearing rings secured detachably over diameter which embrace pipe line. Even number of slide blocks arranged inside said box may be secured in two positions for turn at 180 deg. for operation in sliding and anti-friction modes. Side members of slide blocks have cylindrical recesses whose axes are located at distance from their lower surface sufficient to avoid falling-out of rolling when slide blocks operate in anti-friction mode. Protective boxes are provided with bearing plates which are adjustable in height. Roller have notches on their cylindrical surface. Side external surface of slide blocks operating in sliding mode have slots. Slide blocks are interconnected together and are connected with walls of protective box by means of fasteners.

EFFECT: enhanced reliability of drawing pipe line inside protective casing.

6 cl, 7 dwg