An adjustable pipe support system is formed by fixing to a support column a top and bottom support plate, each plate comprising a respective orifice aligned with the other. A tube comprising a lubricating material fitting is fixed at each end to a respective support plate and aligned with the orifices, thereby forming a lubricating material receiving housing. Inserted into each orifice is a threaded adjusting bushing comprising internal threads and a shoulder contact flange. The adjusting bushings are sized such that when the inserted shoulder shoulder contact flanges are stopped by the support plate a space remains between the two contact bushing ends. A threaded stud first end is threadingly received by the threaded adjusting bushings. A threaded stud second end comprises a support member. As each threaded adjusting bushing is tightened the shoulder shoulder contact flanges seal against the support plates to laterally stabilize the threaded stud and contain the lubricating material within the housing.

A fluid device housing includes a lower fluid device housing portion and an upper fluid device housing portion each formed with mating members. Each of the mating members of the lower fluid device housing portion mate with a corresponding mating member of the upper fluid device housing portion to form an inclined channel. A connector member is arranged to fit at least partially around peripheries of the lower and upper fluid device housing portions. The connector member includes lugs that are received in the inclined channels.

A universal fastener is provided. The universal fastener is connectable to a buryable element such as a pipe. A marker may be removably attached to the fastener to extend away from the buryable element allowing it to be easily identified once buried.

A compact, open path vertical cable pulling apparatus, having a low center of gravity and composed of two detachable, single person hand-portable components. The apparatus is competent to pull cable horizontally through space underground with a pulling force in the range of at least about 20 to 100 tons using low pressure flow hydraulics and has utility in the cable pulling industries, including in the drilling and horizontal directional drilling industries, and as part of a method for pulling cable through space, including pulling cable through space in the pipe bursting and trenchless pipe replacement industries.

A working machine includes a machine body, a working device provided on the machine body, an attachment provided on the working device to hold an elongated to-be-held object, a first sensor to recognize a position of one end portion of the to-be-held object, a setter to set a holding position based on a recognition result from the first sensor, the holding position being a position at which the to-be-held object is to be held by the attachment, a controller configured or programmed to control the working device. The controller is configured or programmed to control the working device to allow the attachment to hold the to-be-held object at the holding position set by the setter.

A working machine includes a machine body, a working device provided on the machine body, an attachment provided on the working device to hold an elongated to-be-held object, a first sensor to recognize a position of one end portion of the to-be-held object, a setter to set a holding position based on a recognition result from the first sensor, the holding position being a position at which the to-be-held object is to be held by the attachment, a controller configured or programmed to control the working device. The controller is configured or programmed to control the working device to allow the attachment to hold the to-be-held object at the holding position set by the setter.

A working machine includes a machine body, a working device provided on the machine body to attach thereto an attachment to hold a to-be-held object, and a controller configured or programmed to impose an operational limitation to limit one or both of an operational area and an operational speed of the working machine when causing the attachment to perform an operation of holding the to-be-held object.

A working machine includes a machine body, a working device provided on the machine body to attach thereto an attachment to hold a to-be-held object, and a controller configured or programmed to impose an operational limitation to limit one or both of an operational area and an operational speed of the working machine when causing the attachment to perform an operation of holding the to-be-held object.

Preventing erroneous connection of a tube connected for transferring fluid between first and second apparatuses. The tube is surrounded from an outer peripheral side by an erroneous connection prevention tool whose main body portion is configured as an annular member. The tool is attached with identification information associated with connection information indicating a connection destination of the tube. One end side of the tube is connected to a preset connection destination. The erroneous connection prevention tool is moved from one end side to another end side of the tube along the tube. The connection information associated with the identification information of the erroneous connection prevention tool is moved to the other end side is confirmed. Then another end side of the tube is connected to a preset connection destination of an apparatus on another side of the first or second apparatus based on the confirmed connection information.