Slide hatch for bulk carrier

A slide hatch for a bulk carrier vehicle having a tank with a tank top with at least one access port with a rim raised from the tank top, the slide hatch comprising:

• a) a hatch cover having a top and an underside with a perimeter seat engageable with the rim of the access port when the cover is seated on the access port;
• b) a hatch cover slide apparatus mountable on the tank having:
• 1) a displacement mechanism including:
• i) a slide track;
• ii) a slide carriage slidably engaged with the slide track and displaceable thereon;
• and
• iii) an actuator connected to the slide carriage;
• and,
• 2) a cam mechanism interconnecting the hatch cover with the displacement mechanism, wherein the cam mechanism includes a cam mechanism bracket on the hatch cover and a coupling device engaging the cover and the cam mechanism bracket, the coupling device being connected to the displacement mechanism, wherein the actuator of the displacement mechanism displaces the slide carriage and hatch cover between a first position over the access port and a second position displaced from the access port, and wherein the cam mechanism seats the hatch cover on the access port when the hatch cover is positioned over the access port.