Lifting and placing device for seabed mats

A seabed mat placement device comprising:

• a frame having a first and a second side surface, both of said side surfaces having a plurality of pin receiving supports;
• a first and a second release shaft having a plurality of displaceable supporting pins, said first release shaft rotatably mounted on said first side surface and said second release shaft rotatably mounted on said second side surface,
• an actuation shaft rotatably mounted on said frame and pivotally connected to said first and said second release shaft;
• an actuation lever affixed to said actuation shaft.

A seabed mat placement device, comprising:

• a first and a second support beam separated by at least one cross support member, said first support beam having an outer surface and having located thereon a plurality of retaining pins and retaining supports, said second support beam having an outer surface and having a plurality of retaining pins and retaining supports;
• a first release shaft rotatably mounted on said first support beam and having a plurality of displaceable support pins retained on support brackets;
• a second release shaft rotatably mounted on said second support beam and having a plurality of displaceable support pins retained on support brackets;
• an actuation shaft rotatably mounted on said seabed placement device and pivotally connected to said first and said second release shaft by at least one driver arm;
• an actuation lever affixed at one end of said actuation shaft.

A seabed mat placement device, comprising:

• a first and a second support beam separated by a plurality of cross support members, said first support beam having an outer surface and having located thereon a plurality of retaining pins and retaining supports, said second support beam having an outer surface and having a plurality of retaining pins and retaining supports;
• a first release shaft rotatably mounted on said first support beam and having a plurality of displaceable support pins retained on support brackets;
• a second release shaft rotatably mounted on said second support beam and having a plurality of displaceable support pins retained on support brackets;
• an actuation shaft rotatably mounted on said plurality of cross support members and pivotally connected to said first and said second release shaft by a plurality of driver arms, said driver arms connected to said first release shaft pivotally mounted on a first hemisphere of said actuation shaft, said driver arms connected to said second release shaft pivotally mounted on a second hemisphere of said actuation shaft;
• an actuation lever affixed at one end of said actuation shaft and extending outward therefrom.

A seabed mat support and release device, comprising:

• (a) a first a frame having a first and second side surface and a plurality of displaceable supporting pins located on said first and second side surface;
• an actuation shaft rotatable on said first frame;
• a first and second release shaft rotatably connected to said actuation shaft, said first release shaft connected to said plurality of displaceable supporting pins on said first side surface and said second release shaft connected to said plurality of displaceable supporting pins on said second side surface;
• (b) a second frame having a first and second side surface and a plurality of displaceable supporting pins located on said first and second side surface;
• an actuation shaft rotatable on said second frame;
• a first and second release shaft rotatably connected to said actuation shaft, said first release shaft connected to said plurality of displaceable supporting pins on said first side surface and said second release shaft connected to said plurality of displaceable supporting pins on said second side surface;
• (c) wherein said first frame and said second frame are removably attached in end to end relationship and wherein said actuation shaft of said first frame is affixed to said actuation shaft of said second frame.