Abstract: A head assembly includes a first portion including a first member and a first motor coupled to the first component, the first member configured to rotate about a first axis of rotation. The head assembly also includes a second portion including a second member and a second motor coupled to the second component, the second member configured to rotate about a second axis of rotation, the second axis of rotation being different than the first axis of rotation. The head assembly also includes a third portion including a clamping assembly.

Abstract: A toy workover rig modeling the kind used to service oil and gas wells. The workover rig includes a wheeled truck. An extensible mast is pivotally fastened to the truck. A remotely-controlled pivoting assembly is connected to the truck for selectively moving the mast from a horizontal, traveling position to a vertical, substantially perpendicular operating position. A remotely-controlled telescoping assembly is connected to the truck for selectively extending the mast from a retracted position to an extended position. A remotely-controlled hoisting assembly is connected to the truck for lifted selected objects within the mast.

Abstract: A boom assembly for a bucket of a toy vehicle comprises at least one bucket bearer, which is articulated to a frame of the toy vehicle by a first swivel joint, and at least one telescopic support with two telescopic elements, which can be displaced in telescopic manner with respect to one another. One of the telescopic elements is articulated to the bucket bearer by a second swivel joint, the other telescopic element is articulated to the frame by a third swivel joint. Furthermore, at least one latch mechanism is provided, the latch mechanism having a latch body which is provided on one of the telescopic elements, and a counter body which is provided on the bucket bearer. The bodies of the latch mechanism are positioned with respect to one another such that when the bucket bearers are moved from a lowered basic position into a raised position, the latch body comes to rest against the counter body before the raised position is reached, the telescopic support being bent with the production of a bending tension.

Abstract: The toy vehicle is characterized in that a rear excavator is fastened to the toy vehicle, that a seat boom is rotatably arranged on a receiving block which is fastened to the toy vehicle, that a support leg is mounted on the receiving block and is pivotable between a raised position and a lowered position in which the support leg rests on the ground, and that the receiving block has mounted thereon a securing hook means which in a first position locks the support leg in the raised position and, at the same time, locks the seat boom in a predetermined angular position and which in a second position secures the support leg in the lowered position and, moreover, releases the seat boom for rotation. The toy vehicle can also be operated by small children and meets high safety standards.

Abstract: A slewing unit mounted to the upper end of a tower rotates a combination jib and counterjib which extends in a horizontal direction about a vertical axis. A first electrical drive unit powers the slewing unit to rotate the jib to a selected angular position relative to the tower. A trolley is movable longitudinally along the jib. A second electrical drive unit moves the trolley to a selected longitudinal position along the jib. A third electrical drive unit mounted on the trolley extends and retracts a rigid elongate load lifting boom in a vertical direction. A load handler, such as a hook, clam-shell bucket or load lifting platform, is connected to the lower end of the boom.

Abstract: A method and apparatus for controlling the flight direction of a blimp. The blimp includes an elongate fuselage for containing a lighter-than-air gas, a movable rudder located toward a tail end of the fuselage, and at least one propeller mounted on a side of the fuselage. The propeller is attached to the blimp by a connection that provides two axes of movement. The propeller connection can be rotated or pivoted (1) about a first axis which is a horizontal axis that is perpendicular to a direction of the longitudinal axis of the elongate fuselage, and/or (2) about a second axis which is a vertical axis that is perpendicular to the direction of the longitudinal axis of the fuselage.

Abstract: A ratchet mechanism for telescope devices on toy vehicles comprises a manually drivable driving gearwheel rotatably positioned on a telescope base body, a rack on the telescopic arm, the rack engaging with the driving gearwheel, and a pawl of ratcheting engagement with a tooth gap of the driving gearwheel for the telescopic arm to be fixed in different positions of displacement on the telescopic base body. The pawl consists of elastically flexible plastics material so that on the one hand it ratchets over the teeth of the driving gearwheel upon actuation of the driving gearwheel for the extraction of the telescopic arm and that on the other hand it is elastically deformable upon actuation of the telescopic arm in the direction of retraction. The pawl then ratchets over the teeth of the driving gearwheel while releasing the telescopic arm in the latter's direction of retraction.

Abstract: A material handling toy which can be used in three different modes--as a mobile crane, a highline carrier, or a highline hoist.

Abstract: Toy apparatus in a playset including a robotic arm module for handling toy vehicles advanced along a path past a plurality of stations including a pickup station, an immersion station, and an exit station. The robotic arm module has gripper members actuatable for picking up the toy vehicle at the pickup station, then dipping the toy vehicle into a liquid and then depositing the toy vehicle at an exit station. The robotic arm apparatus is in the form of a parallelogram linkage which enables twisting action of the gripper members as well as up and down and sideways movement.

Abstract: A toy mechanical digger includes a base frame member, a longitudinally-extending base beam pivotally mounted on the base frame for manually-actuated, 360.degree. slewing action relative to the base frame, a seal longitudinally slidably mounted with respect to the base beam; a primary boom having a pivoted end, and intermediate end, and a remote end, the pivoted end being pivotally mounted to the forward end of the base beam, such that the remote end can be raised and lowered, the intermediate end pivotally mounted to the forward end of the seat such that forward and rearward longitudinal sliding movement of the seat is linked to the lowering and raising movements, respectively, of the primary boom; a secondary boom having a pivoted end and a remote end, the pivoted end mounted on the remote end of the primary boom for pivotal movement relative thereto.

Abstract: A toy crane attachment for use with a child's tricycle. The crane includes a main mounting frame which can be easily attached to or removed from the tricycle. The main frame pivotally supports a swivelable frame and boom, with the boom thereby being movable not only horizontally relative to the tricycle, but through all of a crane's vertical motions. The child will operate the crane by turning around and facing the rear of the tricycle with crane operation thereafter simulating actual crane operation.