Automated temporary roof support system for mining equipment
OwnerNelson E. Tinnelinventor
Life of this patent
Estimating the term…
Abstract
A lightweight jack for supporting the roof of a mine until permanent supports are in place. The jack is carried by a roof bolter or similar mining equipment on the end of a support arm. A hinge box is mounted on the sidewall of the roof bolter and one end of the arm is hingedly received therein. A support plate extends from the sidewall outwardly below the arm. The support plate carries at the far end a U-shaped bracket with a spring inside the bracket. The support arm rests on the spring when the jack is not extended. A swivel arm is received inside the support arm and held from turning by a swivel pin. When the pin is removed, the swivel arm and jack may be turned sideways for easy manuevering by the roof bolter.
Claims7
A temporary roof support system for a low roof mining machine, comprising:
- a jack;
- a swivel arm fixedly connected to said jack;
- a support arm having a first end for receiving said swivel arm and a second end;
- said swivel arm and said support arm being relatively rotatable so that said jack may be rotated to a horizontal position in a vertical plane transverse to said support arm;
- locking means connected to said support arm and said swivel arm to selectively prevent rotation therebetween;
- hinge means fixedly attached to said machine, a second end of said support arm being hingedly received therein;
- support means supporting said support arm and being fixedly attached to said machine and extending outwardly beneath said support arm;
- whereby said system may be retrofitted to said machine easily and whereby said support plate carries said support arm until said jack is extended.
An automated temporary roof support system for a low roof mining machine, comprising:
- a jack;
- a foot pad connected to a first end of said jack;
- a roof pad connected to a second end of said jack;
- a jack clamp engaging said jack at an intermediate position;
- a swivel arm fixedly connected to said jack clamp;
- a support arm having a first end for receiving said swivel arm and a second end;
- said swivel arm and said support arm being relatively rotatable so that said jack may be rotated to a horizontal position in a vertical plane transverse to said support arm;
- a removable swivel pin for preventing relative rotation of said support arm and swivel arm;
- a hinge box being connected to the frame of said machine for hingedly receiving said second end of said support arm;
- a support plate connected to the frame of said machine and extending outwardly therefrom below said support arm;
- a spring box mounted on said support plate having upstanding side walls and a spring mounted on the bottom of said box for receiving and supporting said support arm;
- and
- a leveling turnbuckle extending between said jack and said swivel arm for adjusting said jack in a vertical direction;
- whereby said system may be retrofitted to said machine easily and whereby said support plate carries said support arm until said jack is extended to reach the mine floor.
Dependencies are inferred from the claim text.