Abstract: A grinding apparatus for application upon pavement surfaces or the like includes a self-powered, riding machine having one or more grinding heads. The operator is situated immediately above the grinding heads and manipulates the operation of the heads as well as the advancement of the machine, through appropriate controls. The machine includes a bottom frame assembly upon which the majority of the apparatus is mounted. The grinding heads are normally stationary with respect to the bottom frame assembly and are raised and lowered relative the pavement, upon the pivotal displacement of an upper frame assembly which is provided with a forwardmost control arm. This displacement translates as a vertical adjustment of the grinding heads as the bottom frame assembly is raised or lowered. The forward distal portion of the control arm joins with a steerable wheel assembly. Preferably, independent control of the wheel assembly is accomplished by a second, mobile operator.

Abstract: In a method of manufacturing a cut-off mown-material carpet, the carpet is advanced through a processing nip 22 between two powered rollers 4 and 5 that rotate in opposite directions and have matching elevations 13 and 14 and depressions 15 and 16 in their surface, buckling the carpet. The carpet is advanced through the nip at different speeds at each surface of the carpet.

Abstract: An adjuster handle construction for a soil compactor such as a percussion rammer. The compactor includes a shoe adapted to engage the surface to be compacted and the shoe is driven in a reciprocating path by a drive cylinder which, in turn, is operated by an engine located at the upper end of the compactor. A tubular guard surrounds the engine and engine components, and a handle is pivotally connected to the guard. The handle can be locked to the guard through an adjustable locking mechanism, so that the handle can be positioned in a plurality of different elevations.

Abstract: Scraping device for removing excess subgrade material from the surface of a subgrade to level the subgrade, which includes a lower wall, side walls, a rear wall and an optional top wall defining a container for collecting removed excess subgrade material, and attachment means so the device may be lifted and transported by a fork lift truck or the bucket of an earth moving vehicle for emptying; advantageously the apparatus is formed in sections which can be disassemabled and stacked one within another.

Abstract: A system for leveling concrete to provide a flat, planar upper surface. The system involves the use of elongated screed rails including upper and lower edges. The lower edge of each screen rail includes an elongated slot in each end portion. Each screed rail can be positioned over upright grade pins which extend into the slots and rest against the underside of the top edge of the screed rail. A leveling or strikeoff rod having a straight lower edge is supported on the upper edges of the screed rails. When the leveling rod is drawn along the screed rails it levels the poured concrete and provides a planar concrete surface.

Abstract: The present invention provides a parking space guard comprising a base for anchoring the guard to a supporting surface and a blocker movable from a down access to an up blocking position. The base comprises a mounting plate with a pair of upstanding arms between which the blocker is pivotally and lockably secured and the arms are forwardly open for raising and lowering the blocker. The base further includes a forwardly extending channel in which the blocker lies when in the down position for lowering of the upper end of the blocker to ground level.

Abstract: A raised retroreflective pavement marker that provides both improved retroreflectivity and longer life has a rigid opaque, synthetic resin body having at its front face septa to which a plastic cube-corner reflector has been bonded to provide a plurality of hermetically sealed cells beneath the reflector. This pavement marker differs from those on the market in that the thickness of its reflector is less than 2 mm, and it has preferably at least 500 cube-corner elements per cm.sup.2.

Abstract: A slalom post (1) is described comprising at least one eccentrically pivoted disc-like anchor element (5, 8) normally positioned substantially within the cross-sectional area of the lower end of the post. By simply twisting the slalom post (1) around its vertical longitudinal axis (4), the anchoring element (5, 8) is brought from its normal ineffective position into its effective anchoring position by rotation around a vertical axis offset and parallel to the vertical longitudinal axis of the slalom post. If desired, a roughened peripheral edge of the disc may be provided for engagement with the snow or ice into which the lower end of the post is placed so that the rotation of the post will rotate the disc-like anchoring element relative thereto to move it into its effective anchoring position.

Abstract: The present invention relates to a waterproofing complex for the deck of a road structure, which is intended to receive a surfacing course, the said complex comprising:a bottom layer consisting of a mortar containing about 10 to about 15% of aggregate with a diameter of less than 80 .mu.m, and from about 7.5 to about 9.5% of a bituminous binder based on elastomers, the percentages being expressed by weight relative to the dry aggregate, anda top layer consisting of a bitumen rich in elastomers.It further relates to a process for the waterproof road lining of the deck of a structure.

Abstract: The object of the invention is a method of arranging the cooling in a compactor equipped with at least one roller drum, in which the motor and/or other equipment, for example the hydraulic system, has forced circulation water cooling or water cooled closed forced circulation air cooling. The intention of the invention is to remove the problem of the dirtying of the radiator cells that exists in present cooling systems.In the method in accordance with the invention the cooling water is circulated through the roller and is brought in thermal contact with the outer covering of the roller in order to transfer the heat from this to the surrounding air and to the ground. Further, a heat exchanger through which coolant flows may also be placed inside the roller, immersed in a second volume of cooling fluid. The heat exchanger may be placed into direct physical contact with the outer cover of the roller.

Abstract: During the laying of a marking line with the aid of at least one paint spray gun (2), profile particles (5) are introduced by means of a profile particle dispenser (4) into the marking composition (3) and thereby enveloped all round by the latter. The dimension of the profile particles (5), which are preferably reflective beads, is greater than the layer thickness of the bare painted line, so that profile elevations are formed. Subsequently, reflective beads (8) which also adhere to the profile elevations are scattered onto this profiled painted line (6), which beads thus ensure a good night visibility in wet conditions and when a water film is present, from which they project. The profile particles (5) can either be directly introduced into the jet of paints emerging from the paint spray gun (2) or, subsequent to the application of a painted line, be scattered thereon and then completely covered with marking composition by means of renewed spraying of a thin film of paint.

Abstract: A water-draining stable mat is described, made up of tires of portions of tires. The roadway mat has several layers that are borne upon and conform to a substrate of peat, dirt, sand, clay or other soil material. One layer of a roadway mat of the invention is a layer of vehicle tires or toroidal elements of vehicle tires, laying side by side. Each tire touches at least two other tires but no more than four other tires. Contiguous tires are bound together using a toggle strap that straddles the side walls of contiguous tires. Another layer of the roadway mat is made up of cut pieces of vehicle tires called "chips". The layer of chips are applied so that the chips are in overlapping relationship to each other and so that the chips lie generally parallel to the substrate. The tire chips form water seepage channels thus allowing excess water to soak into the substrate. Another layer is a layer of topping. The topping comprises sand, gravel, dirt and/or other material commonly used in road building.

Abstract: An adjustable doorway ramp apparatus is set forth wherein a doorway ramp is of a triangular wedge member configuration and includes a first, second, third, fourth, fifth, sixth, and seventh ramp associated therewith. The first ramp is positioned at an uppermost portion of the ramp apparatus and is pivotally mounted in forwardmost portion thereof with a fourth ramp pivotally mounted displaceably rearwardly therefrom by a rack and pinion arrangement. A second ramp is in underlying position to said first ramp and is of a trapezoidal configuration and releasably securable to a third ramp of trapezoidal configuration dimension substantially greater than that of said second ramp. A fifth ramp is positionable between said first and second ramps to arcuately position said first ramp relative to said second ramp with a sixth ramp and seventh ramp slidably mounted within said third ramp for positioning about an associated door sill.