Abstract: A pruning device for cutting tree limbs includes a head assembly mounted atop an elongated pole and activated by a tether line. The head assembly can be pivoted to various angles relative to the pole axis without impairing the effectiveness of the tether line to apply pulling force for achieving cutting of upwardly angled tree limbs.

Abstract: A device for separating mixtures of gas, liquid hydrocarbons and/or free water provides an elongated horizontally disposed tank with a centrifugal separation device at its inlet end and a substantially large open separating section downstream thereof followed by a mist extractor and a condensate extractor which pass the gas stream through ceramic chips and/or stainless steel mesh as a final separation of liquid droplets from the gas stream.

Abstract: A valve for incorporation in a gas line through which liquid entrained gas passes, positions a valve seat across the line and arranges a sump adjacent to and upstream of the valve seat. A spherical valve element of a specific gravity less than the entrained liquid in the gas stream is positioned in the sump on a second valve seat therein communicating with a liquid outlet. Entrained liquid in the gas stream collects in the sump, floats the spherical valve element upwardly where the gas flow moves it horizontally into the valve seat in the gas line thus closing the gas line and opening the liquid drain.

Abstract: A well driving and monitoring system for a well of the reciprocating rod type utilizes a right angle drive transmission with a load cell therein arranged to monitor torque loads and thus continuously monitor the loads on the reciprocating rod of the pumping unit. The monitoring system utilizes a first set point warning to create a signal which may be transmitted to a central station if exceeded and a second higher set point to shut down the pump if exceeded. A plug in strip chart recorder is employed to permit the operator visually to see the loads during a pump cycle so that analysis, adjustments or corrections can quickly be made. The system is secured against vandalism. In addition, a simplified adjustable counterweight is provided which can readily be altered in capacity and field adjusted as to position. An improved and simplified crank connection on the output shaft of the right angle drive facilitates assembly and disassembly while providing a narrower, cleaner, more compact drive.

Abstract: An improved insert for a roller entry guide box for use with steel mills and in particular steel rod mills is disclosed wherein a replaceable machined guide insert is provided to guide stock into the working mill rolls, insuring accurate centering of the same, whereby the insert can be readily changed when it becomes worn so as to insure continued accuracy and precision with a minimum of cost. The insert is a cylindrical member which is insertable into the guide box cavity adjacent the discharge end thereof and cooperates with a static guide member to form a continuous channel for reception of the stock. The insert has a funnel-shaped interior bore which serves to guide the stock onto the desired center line so that it passes along a center line between the guide rolls, which then feed the stock into the working rolls. Unique adjustment means are also provided to control the spacing of the guide rolls relatively of the center line.