摘要:
An apparatus for deployment and retrieval of section dividers includes a frame, a deployment rail, a first section divider carrier rail, and a second section divider carrier rail. The structure includes a first end of the first section divider carrier rail coupled to a first end of the deployment rail and a first end of the second section divider carrier rail coupled to a second of the deployment rail. A first actuator coupled to the first end of the first section divider carrier rail. A second actuator coupled to the second end of the first section divider carrier rail. The structure further includes a first deployment and retrieval system coupled to the first section divider carrier rail, wherein the first deployment and retrieval system guides a first retrieval body at a first end of a first section divider from the deployment rail to the first section divider carrier rail.
摘要:
A covered highway system is disclosed. The system includes a highway; an elongated cover, open at both ends, positioned over the length of the highway such that vehicles pass underneath the cover when the vehicles drive on the highway; the cover is impermeable to rain and to snow and the cover is capable of blocking the wind. Optional elements include ventilation, channels of communication, rest areas, and underpasses.
摘要:
Windblown particles are controlled by a porous tubular control device formed from a sheet of netting material having a plurality of interconnected webs which define a plurality of apertures. The sheet of netting material assumes a three-dimensional tubular configuration. The tubular configuration is oriented to confront the wind and cause the wind blown particles to flow through the apertures of two vertically oriented portions of the tubular netting sheet to create aerodynamic drag and turbulence altering effects which stabilize, deposit and retain the windblown particles. The control device is effective in preventing the wind erosion of snow, sand or dust over an area much greater than the area occupied by the device.
摘要:
A variety of types of wood matter may be used as a starter material. The starter material is processed into wood pieces in the range of about twenty mesh to six inches to form a base product. The base product is installed in windrows along the beach. A fence may be installed between the windrow(s) and the water.
摘要:
In a device for rapidly screening off a traffic accident site from view a non-transparent elongate sheet of a thin flexible material has one of its short ends secured to a spring-activated rod in the nature of a curtain rod on which the sheet is windable, said rod being mounted lengthwise within a portable cylindrical container having a longitudinal slot through which the sheet is movable for winding and unwinding purposes while being prevented from passing entirely into said container through said slot. The container is provided at one end thereof with means for readily and releasably connecting the same in an upright position with a stationary object, while a supporting post is connectible to said sheet at the free end thereof and adapted to be secured to a stationary object at a distance from said firstmentioned stationary object to thus support the unwound sheet in a substantially vertical position.
摘要:
A mailbox protection device is provided. The device may include an angular deflection surface. The angular deflection surface may include a first planar deflection panel and a second planar deflection panel contiguous along a linear vertex. The linear vertex may be directed toward, for example, oncoming traffic to deflect impacting snow away from a mailbox. The impacting snow may come from passing snowplows, for instance. The device may also include a receiving channel. The receiving channel can be defined in the linear vertex extending through the device from an opening at a top end of the linear vertex to an opening at a bottom end of the linear vertex. The receiving channel may receivably cooperate with a known fence post to anchor the device in the ground.
摘要:
A portable free-standing traffic incident screening assembly of flexible fabric (tarp, screen, etc.) stretched between at least two stanchions, each stanchion having at least three adjustable legs, flexible telescoping vertical extension portions, and removable ballast. The portable screens defend incident sites by establishing privacy, reduce the probability of secondary accidents due to an unprotected scene, and provide a secure environment for incident investigators.
摘要:
A wave barrier for protecting users and their possessions at a beach location close to the water from becoming wet from waves crashing into their location. The wave barrier includes a flexible wall sheet with a plurality of spaced apart elongate poles coupled thereto. The lower ends of the poles are downwardly extended from a bottom edge of the wall sheet. The proximal edge of a ground sheet is coupled to the wall sheet along the bottom edge of the wall sheet.
摘要:
A safety net system that is placed upright on the ground for restraining mud and debris slides is provided. The system includes at least one unit, each of which comprises at least one net panel that is disposed between two columns and is secured to continuous top and bottom ropes. The top rope extends from the bottom of one end column of a unit, through a guide at the top of that end column, through respective top guides of any interposed columns, through the top guide of the other end column, to a bottom end of that other end column. The bottom rope extends from the bottom end of one end column, through respective guides near the bottom of any interposed columns, to the bottom end of the other end column. Anchors are disposed laterally of each end column and uphill of each of the columns. Bracing cables extend from both the upper and bottom ends of each end column to the lateral anchors, and further bracing cables extend from both the upper and bottom ends of each of the columns to the uphill anchors.