A hoist system includes a load attaching member a single conductor connecting the load attaching member to a hoist for raising and lowering the load attaching member and single conductor. A sensor is operatively connected to the load attaching member to sense a monitored parameter of the load attaching member. The sensor is electrically connected to a receiving module of the hoist for single wired-transmission along the single conductor from the sensor to the receiving module.

The present invention relates to a lifting device for a crane which comprises a lifting cable winch, a lifting cable and a load-receiving means (10), the load-receiving means (10) being connected to the lifting cable and being movable by means of the lifting cable winch, in particular vertically movable. According to the invention the lifting device has at least one spring mounting (12) so that on the whole the load to be lifted and received by the load-receiving means (10) is mounted in a sprung manner.

The present invention relates to a lifting device for a crane which comprises a lifting cable winch, a lifting cable and a load-receiving means (10), the load-receiving means (10) being connected to the lifting cable and being movable by means of the lifting cable winch, in particular vertically movable. According to the invention the lifting device has at least one spring mounting (12) so that on the whole the load to be lifted and received by the load-receiving means (10) is mounted in a sprung manner.

One variation of a method for tracking lift events at a construction site includes: accessing a timeseries of load values output by a weight sensor, coupled to a crane hook, and a first geospatial location of the crane hook during a first time period; deriving a lifting profile at the first geospatial location from the timeseries of load values; deriving a weight of the object from the timeseries of load values; identifying a type of the object carried by the crane hook during the first time period based on the lifting profile; accessing a second geospatial location of the crane hook during unloading of the object from the crane hook; and generating a lift event record defining the type of the object, the weight of the object, a pickup location of the object at the first geospatial location, and a drop-off location of the object at the second geospatial location.

One variation of a method for tracking lift events at a construction site includes: accessing a timeseries of load values output by a weight sensor, coupled to a crane hook, and a first geospatial location of the crane hook during a first time period; deriving a lifting profile at the first geospatial location from the timeseries of load values; deriving a weight of the object from the timeseries of load values; identifying a type of the object carried by the crane hook during the first time period based on the lifting profile; accessing a second geospatial location of the crane hook during unloading of the object from the crane hook; and generating a lift event record defining the type of the object, the weight of the object, a pickup location of the object at the first geospatial location, and a drop-off location of the object at the second geospatial location.

One variation of a method for tracking lift events at a construction site includes: accessing a timeseries of load values output by a weight sensor, coupled to a crane hook, and a first geospatial location of the crane hook during a first time period; deriving a lifting profile at the first geospatial location from the timeseries of load values; deriving a weight of the object from the timeseries of load values; identifying a type of the object carried by the crane hook during the first time period based on the lifting profile; accessing a second geospatial location of the crane hook during unloading of the object from the crane hook; and generating a lift event record defining the type of the object, the weight of the object, a pickup location of the object at the first geospatial location, and a drop-off location of the object at the second geospatial location.

One variation of a method for tracking lift events at a construction site includes: accessing a timeseries of load values output by a weight sensor, coupled to a crane hook, and a first geospatial location of the crane hook during a first time period; deriving a lifting profile at the first geospatial location from the timeseries of load values; deriving a weight of the object from the timeseries of load values; identifying a type of the object carried by the crane hook during the first time period based on the lifting profile; accessing a second geospatial location of the crane hook during unloading of the object from the crane hook; and generating a lift event record defining the type of the object, the weight of the object, a pickup location of the object at the first geospatial location, and a drop-off location of the object at the second geospatial location.

The invention relates to a method in a weighing system, in which method the mass of the bundle is weighed and recorded during both loading % and unloading m.sub.i_p of the bundle, during loading, the total loading mass m.sub.K_kok_j is calculated from the mass m.sub.i_c of one or more bundles weighed during loading and corrected using a correction factor C.sub.j, the total unloading mass m.sub.p_kok_j is calculated from the mass m.sub.i_p of one or more bundles weighed during unloading, with the aid of the said total loading mass m.sub.K_COk_j and total unloading mass m.sub.p_kok_j, a new corrected value Cj+1 is calculated for the correction factor C.sub.j in order to adjust the weighing for the loading of the next load K.sub.j+1. The invention also relates to a corresponding software product, an arrangement, and a material-handling machine.

The invention relates to a method in a weighing system, in which method the mass of the bundle is weighed and recorded during both loading % and unloading m.sub.i_p of the bundle, during loading, the total loading mass m.sub.K_kok_j is calculated from the mass m.sub.i_c of one or more bundles weighed during loading and corrected using a correction factor C.sub.j, the total unloading mass m.sub.p_kok_j is calculated from the mass m.sub.i_p of one or more bundles weighed during unloading, with the aid of the said total loading mass m.sub.K_COk_j and total unloading mass m.sub.p_kok_j, a new corrected value Cj+1 is calculated for the correction factor C.sub.j in order to adjust the weighing for the loading of the next load K.sub.j+1. The invention also relates to a corresponding software product, an arrangement, and a material-handling machine.

An apparatus for applying force to a workpiece, the apparatus having a frame with spaced first and second side members and a top frame assembly. An anchor is spaced downwardly from the top frame assembly. There is a force generator connected to the frame assembly. The force generator is operative to apply a force to a workpiece connected between and to the force generator and anchor.