초록 ▼

A hatch cover opening and closing assembly which includes a hat member rockably secured to the hatch at about its center, the hatch cover being pivotably secured to the railway car coaming through the hat member at one end and the other end of the hat member being adapted to coact with a locking ass

A hatch cover opening and closing assembly which includes a hat member rockably secured to the hatch at about its center, the hatch cover being pivotably secured to the railway car coaming through the hat member at one end and the other end of the hat member being adapted to coact with a locking assembly that locks the hatch in closed, sealed, position either by means of a cam or crank acting mechanism.

대표청구항 ▼

A hatch cover assembly for closing and opening a hatch on a vehicle having a hatch with a coaming therearound, said assembly comprising: a hatch cover compression member having a distal end and an opposite end, said compression member being pivotally mounted at its said opposite end on said vehicle;

A hatch cover assembly for closing and opening a hatch on a vehicle having a hatch with a coaming therearound, said assembly comprising: a hatch cover compression member having a distal end and an opposite end, said compression member being pivotally mounted at its said opposite end on said vehicle; a hatch cover pivotally mounted inwardly of its periphery on said compression member intermediate the ends of the latter and being free at its periphery to move both around and laterally of its pivot point on said compression member; a sealing gasket intermediate said cover and said coaming for providing a seal between said cover and said coaming; and locking means pivotally mounted relative to and adjacent said distal end of said compression member, said locking means being pivotable to a first position in which it applies pressure to said distal end of said compression member and thereby applies pressure to said central portion of said cover to urge said cover toward said coaming at all peripheral portions thereof and being pivotable to a second position in which it releases said distal end of said compression member and permits said compression member to pivot and thereby, permits movement of said cover away from said hatch.