Foot or top plate assembly
OwnerGeorge W. Jacksoninventor
Life of this patent
Estimating the term…
Abstract
A foot or top plate assembly for a shoring structure or tower comprises a wedged pin, a screw jack having an end adapted to receive the wedged pin in a friction fit, a foot plate having a first support for receiving the wedged pin in a friction fit and a second support for supporting the wedged pin. The first and second supports adapted to receive the hollow end in a sliding fit. The wedged pin connects the foot plate to the screw jack, whereby as the wedged pin is moved between an engaged position and a disengaged position the base plate moves relative to the screw jack.
Claims16
A foot or top plate assembly for a shoring structure or tower, said assembly comprising:
- a wedged pin having an elongated cone shape having a taper,
- a screw jack shaft having a hollow end adapted to receive the wedged pin in a friction fit in an engaged position,
- a base plate having a support means for receiving the wedged pin in a friction fit and said support means adapted to receive said hollow end in a sliding fit,
- said wedged pin pivotally connecting the base plate to the screw jack, whereby as said wedged pin is moved between said engaged position and a disengaged position relative movement between said base plate and said screw jack is effected.
A foot or top plate assembly comprising,
- a screw jack having a hollow end and a threaded end, said threaded end having an external thread adapted to receive a wing nut, said hollow end having a first bore of a first diameter and a second bore of a second diameter, said first bore in substantial alignment with the second bore,
- a base plate having a first and second support plate, said first support plate having a third bore of a third diameter and said second support plate having a fourth bore of a fourth diameter, said third bore in substantial alignment with the fourth bore, said first plate spaced from the second plate for slidingly receiving said hollow end of said screw jack, and
- a wedged pin for extending through said bores, said bores adapted to receive the wedged pin in a frictional fit, said base plate having a pin support member extending substantially perpendicular thereto and adapted for supporting said wedged pin intermediate of the first and second support plate, said wedged pin having an elongated cone shape having a taper for pivotally connecting the base plate to the screw jack, whereby as said wedged pin is moved between an engaged position and a disengaged position said base plate moves towards and away from the screw jack.
In a combination with a shoring structure or tower, a foot or top plate assembly comprising,
- a wedged pin having an elongated cone shape having a taper,
- a screw jack shaft having a hollow end adapted to receive the wedged pin in a friction fit in an engaged position,
- a base plate having a support means for receiving the wedged pin in a friction fit and adapted to receive said hollow end in a sliding fit,
- said wedged pin pivotally connecting the base plate to the screw jack, whereby as said wedged pin is moved between said engaged position and a disengaged position relative movement between said base plate and said screw jack is effected.
Dependencies are inferred from the claim text.