Abstract: A portable top drive drilling unit that is a self-contained assembly of components adapted for quick installation in a drilling rig and which requires a minimum of modification to the rig structure.

Abstract: A spindle apparatus operative by a fluid powered reaction turbine-type motor and having a handle portion, a head portion and a device for attaching a desired tool thereto. The handle portion includes a channel for directing the flow of a received fluid. The head portion includes the reaction turbine-type motor which is coupled to an outlet of the channel so as to receive the fluid therefrom. The head portion further includes a rotatable shaft which is coupled to the reaction turbine-type motor and to the attaching device. Upon receiving fluid from the handle portion, the reaction turbine-type motor rotates, thereby causing the shaft and the tool to rotate.

Abstract: A drill rig includes a main engine which drives a drilling spindle through a clutched transmission. A protective cage surrounds the spindle when the transmission is in gear to prevent workmen from being injured by drilling tools. An auxiliary drive motor operates the spindle for a limited number of revolutions when the transmission is in neutral and the protective cage is open to permit workmen to rotate the spindle to add and remove augers, couple and uncouple drilling rods, and perform other necessary tasks.

Abstract: The assembly is designed to convert a conventional land rig to "top drive". It comprises a torque track that is shipped in sections and is assembled to form a rigid track extending vertically in the derrick. The track is rigidly attached to the derrick only at its base, so that the track is free to twist and deflect laterally along its length. The housing of the top drive is connected by an angled, pivotally mounted link means with a tubular bushing that embraces and slides along the track. The link means and bushing are adapted to restrain rotation of the housing relative to the track, while transmitting both side and torque reactive loads to the track. The angled pivoting link enables the top drive to be displaced outwardly to a position over the mousehole. The top drive incorporates a hydraulic motor and gear drive assembly for rotating a drive shaft connecting the drill string and hoisting means. The housing does not carry the drill string load and can be made lighter and more compact as a result.

Abstract: A ground-boring device with a ground auger, which features a boring spindle driven by an engine-transmission unit. A framework is provided with a travelling gear. On the grip ends of the framework is provided a handgrip arrangement located during operation of the device at roughly the gripping level of a service person and a seating device for mounting of the engine-transmission unit of the ground auger, arranged in a longitudinal direction to the framework at a horizontal distance from the travelling gear. The handgrip arrangement is positioned such that the boring spindle essentially runs vertically so that the seating device permits a swinging of the ground auger in relation to the longitudinal direction of the framework during its penetration into the ground.

Abstract: The drive head assembly for a drilling machine includes a drive head body having a cavity with an upper portion and a lower portion. A bolt is located in the upper portion of the drive head body cavity, and a collet is located in the lower portion of the drive head body cavity. The collet also includes a cavity. A collet insert is located in the collet cavity, and the collet insert has a drill string opening to fixedly secure a drill string.

Abstract: An adjustable universal driver useful in driving screws, drilling holes or the like, includes a sleeve unit having a sleeve linkage connecting linking ends of a grip sleeve and a nose sleeve to permit pivoting of one of the sleeves relative to the other about a transverse axis of the sleeve linkage; a drive shaft unit having a universal joint operatively connecting a driven end of a grip shaft and a driving end of a nose shaft for rotation as a drive shaft unit relative to the sleeve unit; and means for adjusting and retaining the angle formed by the nose sleeve and nose shaft relative to the grip sleeve and grip shaft.