摘要:
A strip of membrane material is laminated to a wider strip of netting and then the longitudinal edges of the strip of netting are seamed together into a sleeve for receiving aggregate to form an elongated tubular drainage element. The laminated peripheral portion of the resultant sleeve is used as the top of the drainage element to preclude fine material from entering the drainage element. Where a membrane is used to form the sleeve, holes or slits are placed in the peripheral portion of the sleeve that is to form the bottom of the drainage element. The seaming of the overlapped longitudinal edges of the membrane is effected using glue and a nozzle that blows air under pressure onto the seam to force the edges and glue to bond together.
摘要:
The machine employs a forming collar to shape a continuous web of material longitudinally about a barrel with the longitudinal edges splayed outwardly and over each other. A sewing machine spaced radially from the barrel secures the longitudinal edges together to form a sleeve having an outwardly directed flap. In another embodiment, the machine employs two forming collars to shape a pair of webs about the barrel with outwardly splayed edges on two sides and two sewing machines to secure the edges together to form a pair of flaps. The seam(s) can be sewn at one of a plurality of spacings from the barrel to form a drainage line element of a different diameter from a standard diameter without need to adjust or replace other components of the fabricating machine.
摘要:
The tubular element is made with a sleeve formed of a spun bonded polyester material that allows the passage of water and prevents the passage of soil when used for a drainage element. The tubular element is made with small diameters that allows the element to be coiled about a three-dimensional object when used as a cushioning device.
摘要:
A preassembled drainage line element is fabricated with one or more flaps. In one embodiment, the drainage line unit is made from a webs of net material and a web of water permeable material and has two flaps at diametric points. The webs are formed about a barrel and the longitudinal edges are secured together, as by sewing a seam, to form a flap. The seam can be sewn at one of a plurality of spacings from the barrel to form a drainage line element of a different diameter from a standard diameter without need to adjust or replace other components of the fabricating machine.
摘要:
Pairs of preassembled drainage units are disposed in the bottom of a trench in laterally spaced apart relation with each drainage unit having an integral flap extending outwardly into overlapping relation with the flap of an adjacent drainage unit to form a chamber below the flaps and between the drainage units. An adapter can be used at one end of the drainage units to space the drainage units apart and to seal off the end from the entry of dirt and debris.
摘要:
A paper product may be made as a crumpled paper strip provided with a layer of coadhesive on one side to adhere opposed portions of the strip together in a strong manner to form a dunnage material. The paper product may also be made as a packaging wrap of two-ply construction with the corrugations of a corrugated ply adhered to a flat ply via a coadhesive on both plies. The paper product may also be made as small discrete elements. The apparatus for making the packaging wrap employs a pair of rolls with interengaging projections to form corrugations in a sheet of material coated with a coadhesive and guides for adhering the corrugated sheet to a flat sheet of material.
摘要:
The barrel of a machine for passing a light weight synthetic aggregate into a sleeve of disparate materials, such as netting and geotextile material, has a tongue extending from a portion of the periphery of the terminal end of the barrel to balance the air flow from the barrel and achieve a uniform filling of the sleeve. A ring is also disposed about the end of the barrel to blow jets of air onto the sleeve to block blowback of aggregate between the sleeve and barrel.
摘要:
A drainage element is made by filling a container with expanded thermoplastic elements that are in a non-cured state and that possess a degree of latent foaming ability. After filling the container with the non-cured elements, the elements are allowed to cure under ambient conditions during which the blowing agent remaining in the elements in a vapor state condenses allowing air to be drawn in while the elements expand. This expansion of the elements distends and rigidifies the container where the container is allowed to expand
摘要:
A preassembled drainage line element is fabricated with one or more flaps. In one embodiment, the drainage line unit is made from a webs of net material and a web of water permeable material and has two flaps at diametric points. The webs are formed about a barrel and the longitudinal edges are secured together, as by sewing a seam, to form a flap. The seam can be sewn at one of a plurality of spacings from the barrel to form a drainage line element of a different diameter from a standard diameter without need to adjust or replace other components of the fabricating machine.
摘要:
The drainage element is made with a periphery formed of a filter material that allows the passage of water and prevents the passage of soil and a second peripheral section of net material that allows the passage of water while the preventing the passage of the lightweight aggregate therein. The filter material is preferably made of spun bonded polyester and may be made of a biodegradable material such as starch.