Apparatus for forming and installing underground drainpipe in subterranean passages. The pipe is formed from a web of porous or non- porous sheet plastic which is drawn from a dispensing roll through curling and shaping devices protected by a transparent shield to provide a tube, these devices ...
Many different types of pipe are used for outside and underground water and drainage lines. Copper and plastic pipes, such as polyethylene and PVC, are among the most popular choices. What pipe is best for sun exposure? Plastic pipes are resistant to sun exposure and the damage caused by ...
An underground trampoline will cost you a lot more money than an above ground trampoline. If you are really concerned with the atheistic looks of a trampoline in your backyard or live in a high wind area which could damage your trampoline maybe you should go the in ground route. There are ...
How To Install A Copper Gutter Today's job was to remove a rotted wood gutter and install a 16 gauge, 5" half-round copper gutter with a downspout directed to an underground drain pipe . Removing The Old Gutter The gutter we removed was just a short piec
4602974Method of sealing pipe1986-07-29Wood et al. 4572228Connector valve assembly for inflatable packer device1986-02-25Larson et al.137/15.11 4529008Method of and apparatus for repairing drains and underground pipelines1985-07-16Appleton
The end of the tube is attached to a mole (28) at the end of a power driven blade, with the mole forming an underground passage for the following tube. Tensioning and positioning rollers (44, 46) are carried on the frame to feed the web to the tube forming devices at a predetermined...
Apparatus for forming and installing underground drainpipe in subterranean passages. The pipe is formed from a web of porous or non- porous sheet plastic which is drawn from a dispensing roll through curling and shaping devices protected by a transparent shield to provide a tube, these devices ...
make effective use of underground water or improve subsoil which is uniform or nonuniform under the surface of the underground water, so as to prevent the slide of the subsoil, by boring the subsoil, burying a drain pipe in the borehole, and draining the underground water from the pipe....
CONSTITUTION:An underground device 2 is inserted in a play into a space which surrounds forward ends of a high-pressure water feed pipe 4 and a return water drainpipe 5 in a boring jig 1 and a lower end of a hoop metal 6 at a lowermost stage, and the boring jig 1 is erected on ...
about 500 gallons per minute per square foot of fabric. In a typical installation, an underground piercing tool having a diameter of 3.2 inches was used to install an underdrain having a 2 inch I.D., and a tool having a 4.0 inch diameter was used for a 3 inch I.D. underdrain 21....