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...
Knowing where electric, gas, water, telecommunications and other services are buried underground can prevent costly and dangerous issues. Installing a French Drain French drains are a subsurface system where a trench (12" to 18" wide and 18" to 24" deep) is excavated and a perforated pipe (...
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 ...
14.Device and Application of Underground Rope Directional Turn井下弯道钢丝绳定向装置的研制与应用 15.Design of Planar Turning Mechanism for Overhead Manned Equipment for Mine浅谈煤矿架空乘人装置中平面转弯机构的设计 16.Reinstall the elbow into the base of the relief valve to hold the Air Gap Drain...
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 ...
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 ...
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...
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 ...
1,018,937. Casting pipes underground. DOW CHEMICAL CO. Jan. 9, 1964 [Jan. 21, 1963], No. 1007/64. Heading E1S. [Also in Division A1] A pipe 36 made of a synthetic resin is laid in the ground by apparatus comprising a plough 16, for making a ditch, through a pipe 20 in ...