LandOfFree - US Patents - Listing for Traversing hoists

Traversing hoists – Adjustable to transport or nonuse position – Collapsible or foldable boom

Device for folding a crane jib with nesting elements

Traversing hoists – Boom or mast – Extensible by sliding sections

Device for guiding a telescopic part for a telescopic boom

Traversing hoists – Having horizontally swinging boom or bridge – And vertically swinging

Device for lifting crane boom

Traversing hoists – Having horizontally swinging boom or bridge – Having trolley thereon

Device for locking slewing portion of cargo crane

Traversing hoists – Having vertically swinging boom – And compensating means to maintain horizontal movement of load

Device for maintaining a tool attachment in a knuckle boom crane

Traversing hoists – Boom position lock

Device for placing a tower crane in weathervaning mode

Traversing hoists – Adjustable to transport or nonuse position – Crane boom supported by foldable or collapsible tower

Device for raising and unfolding the mast and for raising...

Device for removing coke oven chamber door

Traversing hoists – Adjustable to transport or nonuse position – Collapsible or foldable boom

Device for simultaneously unfolding or folding crane jib tip...

Traversing hoists – Having horizontally swinging boom or bridge – And means to swing boom horizontally

Device for slewing the column of a crane

Traversing hoists – With haul-in line

Device for stopping the swinging movement of a load hung by a cr

Traversing hoists – Traveling bridge – Supporting second traveling bridge

Device for suspending a travel rail of an overhead conveyor...

Device for the purpose of preventing a body depending from ropes

Traversing hoists – Having horizontally swinging boom or bridge – Having fluid ram directly actuating load cable or sheave...

Device for use in welding reinforcement members to panel plates

Traversing hoists – Boom or mast – Extensible by sliding sections

Device in extendible crane booms

Traversing hoists – Having vertically swinging boom – Having means to swing boom vertically

Device of the kind comprising at least three movably co-ordinate

Traversing hoists – With haul-in line

Device on hoisting machinery for automatic control of the moveme

Devices for erecting a building from prefabricated sections

Devices for transferring heavy loads at sea