Power Take Off

For current consoHdation, the basic circuits, used at each of the multiple power take-off points, are stacked into a Christmas tree topology to form a single power take-off terminal pair. Scale-up of these devices to commercial sizes is not expected to be a problem, as standard electrical components are available for all sizes considered. A different type of consoHdation scheme developed (117), uses dc to ac converters to connect the individual electrodes to the consoHdation point. The current from each electrode can be individually controUed by the converter, which can either absorb energy from or deHver energy to the path between the electrode and the consoHdation point. This scheme offers the potential capabiHty of controlling the current level of each electrode pair. 

Power Take-Off From Engine or Transmission. This type of system is limited to tmcks and there are several take-off means available. Most are some form of electric power generation equipment, belt-driven from the engine crankshaft, which produces either a regulated a-c voltage or rectified direct current for the compressor and fan motors in the body. 

Figure 14-34. Ajax model rated 22-165 bhp gas engine for driving remote oii fieid equipment, 2-cycie, fuei injection. Driven ioad attached to power take-off, item (14). (Used by permission Bui. 2-214. Cooper Cameron Corporation Cooper Energy Services, Ajax Superior.)...

A power take-off arrangement from the internal combustion engine is used to drive the centrifugal pumps. 

An area approximately 200 x20 was graded and paved to support the transloading operation from railcar to trailer. Curbing and a drainage sump were Included to contain any spillage. The transloading was done with the fuel transporter s tractor power-take-off... 

VIBRATING SUBSOILERS. These machines were developed for the purpose of achieving a loosening effect not only through the tractive power but also through the power take-off of the tractor. In this way it is possible to loosen the soil even if the surface does not give a firm hold or the machine has to work uphill. The movement of the shanks to and fro is driven by an eccentric drive. 

Figure 13. Dry extruder for making full-fat soybean meal and shaped extruded feeds 272 kg (600 lb)/h. This machine also can be run by a farm tractor power take-off (PTO). Courtesy of InstaPro International, Inc., Des Moines, Iowa.

Preparation of texturized soybeans can be done in simple dispersed facilities with small-size extrusion and screw-pressing equipments—tractor power take-off-driven if necessary. 

The particular cells that I had were 5" in width and height. I laid out the cells on the fiberboard to see how many I could fit in the 26" X 28" space with enough space left for tab and bus ribbon connects as well as enough space to stay comfortably away from the metal edges. With these cells I could just fit twenty cells (4 strings of 5 cells each) with sufficient space for tab and bus ribbon connects, and power take off leads. 

After drilling the screw holes, measure, mark and drill the power take off holes. One way to do this is to construct the power take off box first. Any size project box from any electronic supplier or store can be used. 

When the outlet box has dried, position it on the back of the panel where you want to put the take off holes. Mark the take off holes through the box onto the back of the panel and mark the outline of the box on the back of the panel. Drill the holes in the panel back for the power take off ribbon. 

Insert the power take off leads through the take off holes in the panel and notice where they touch the panel as they go through. 

Next, cut two pieces of V4" wide by. 005 thick tab ribbon. These tabs are the power take off tabs. They can be cut long, and trimmed to the desired length when the fuel cell is finally assembled. One tab is connected to the hydrogen side take off connector and the other to the oxygen side edge take off connector. You will be able to solder one of the takeoff tabs with the compression screws on, but the other takeoff is on the other side and you will need to solder that when you take the sandwich off the PVC plate and turn it around. Tin the tabs before soldering. Cover a portion of the power take off tabs with a liquid electrical tape to insulate them from touching the compression screws and aluminum channel bars. 

The power take-off box, parts (above) and assembled (below)... 

This seeks through regulations to protect agricultural workers and others working on the land. Regulations have been made to cover avoidance of accidents to children, circular saws, first aid, field and stationary machinery, threshers and bailers, power take-offs, ladders, lifting heavy weights and tractor cabs. 

This type of implement consists of curved blades which rotate around a horizontal shaft set at right angles to the direction of travel. The shaft is driven from the power take-off of the tractor depth is controlled by a land wheel or skid. This implement can produce a good tilth in difficult conditions and, in many cases, it can replace all other implements in seedbed preparation. A light fluffy tilth is sometimes produced which may cap easily if wet weather follows. The fineness of tilth can be controlled by the forward speed of the tractor for example, a fast speed can produce a coarse tilth. It is a very useful implement for mixing crop remains into the soil. The rotating action of the blades helps to drive the implement forward and so extra care must be taken when going down steep slopes. 

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