Implements or apparatus for applying pushing or pulling force – Step-by-step traveling bar – Clutch actuated
Patent
1988-11-16
1990-10-09
Watson, Robert C.
Implements or apparatus for applying pushing or pulling force
Step-by-step traveling bar
Clutch actuated
B66F 100
Patent
active
049615629
ABSTRACT:
An improved apparatus and method for engaging beams is disclosed. A frame is positioned so that each end of the frame is adjacent to opposing surfaces of the beam. A shoe is located between one surface of the beam and the upper end of the frame, and a series of inclined plates are located between the shoe and the upper end of the frame. A hydraulic cylinder is operated to move the inclined plates, until the plates are perpendicular to the shoe, to cause the shoe and the lower end of the frame to engage the beam. Another hydraulic cylinder located between the frame and an object such as a drilling rig can be operated to move the object relative to the beam.
REFERENCES:
patent: 3033525 (1962-05-01), Johnson
patent: 3373971 (1968-03-01), Chambers et al.
patent: 3464095 (1969-09-01), Chambers
patent: 3559959 (1971-02-01), Chambers et al.
patent: 3941353 (1976-03-01), Hack
patent: 4348007 (1982-09-01), Malzacher
patent: 4572481 (1986-02-01), Chambers
patent: 4657438 (1987-04-01), Gillis
Ostfeld David M.
Watson Robert C.
LandOfFree
Apparatus for engaging beams does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for engaging beams, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for engaging beams will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-969177