Bridges – Gangway – ramp – or dock leveler – Attached
Patent
1980-11-12
1983-01-04
Byers, Jr., Nile C.
Bridges
Gangway, ramp, or dock leveler
Attached
182 67, E01D 100
Patent
active
043665918
ABSTRACT:
The automatic safety gangplank includes a plurality of cooperating ladder sections which are extendable from a fully telescoped or retracted position to an elongated position for extension from a dock to the deck of a ship. The end of the base ladder section is connected to a rotatable turntable and is equipped with a pair of lift cylinders. The turntable and the lift cylinders are connected to respectively rotate and elevate the base segment at all times, when the other gangplank ladder sections are either in their extended or retracted positions. A gangway extends from the end of the outermost ladder section in angular relationship and is positioned upon the deck of the ship. Automatic controls which are responsive to changes in elevation of the deck relative to the dock are provided to automatically either extend, retract, elevate or lower the safety gangplank as may be necessary to continuously maintain a safe walkway between the dock and the deck of the ship for all relative positions of the deck when the ship is either simply docked or when it is being loaded or unloaded.
REFERENCES:
patent: 1761726 (1930-06-01), Havens
patent: 2951549 (1960-09-01), Holan
patent: 3404417 (1968-10-01), Wollard
patent: 3538528 (1970-11-01), Porter
patent: 3572467 (1971-03-01), Hall
patent: 3710893 (1973-01-01), Hippach
patent: 3875603 (1975-04-01), Mampaey
patent: 4011615 (1977-03-01), Maxson
patent: 4094381 (1978-06-01), Wilkerson
patent: 4157742 (1979-06-01), Aanensen
Eight page brochure entitled, "Mack Aerial-Scope".
Four-page brochure entitled, "The Star of the Eighties is Here'from LT".
Four page brochure entitled, "The Stutphen Aerial Tower".
LandOfFree
Automatic safety gangplank does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Automatic safety gangplank, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic safety gangplank will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1577994