Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention
Patent
1977-01-25
1978-12-19
Taylor, Dennis L.
Hydraulic and earth engineering
Earth treatment or control
Shoring, bracing, or cave-in prevention
305 16, E02D 1544
Patent
active
041299906
ABSTRACT:
An advancing support for providing a continuous propping, particularly for providing a continuous propping of mine galleries or like passageways, comprising at least two carriages for articulated tracks, each of said carriages including a beam having rounded ends and an articulated track closely surrounding the beam mounted for sliding friction on the beam, each of said beams being divided into spaced-apart longitudinal elements, a connecting element pivotally attached to each of said longitudinal elements for joining them together, said carriages being disposed one above the other to be applied respectively against the floor and roof of a gallery; at least one jack attached to the connecting element of the upper carriage and the connecting element of the lower carriage thereby joining said carriages together.
REFERENCES:
patent: 2826898 (1958-03-01), Joy
patent: 2899800 (1959-08-01), Joy
Charbonnages de France
Taylor Dennis L.
LandOfFree
Advancing support does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Advancing support, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Advancing support will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2368832