Abstract: The present invention relates to a laying machine for laying at least one flexible casing or tube, cable or wire including: a blade arrangement for making a trench in the ground, a consolidation and laying means being arranged behind the blade arrangement, for clearing and safe-guarding the trench from collapsing while laying at least one flexible casing or tube, cable or wire into the trench. A blade assembly comprising compartments for cooling fluid and air.

Abstract: The present invention relates to a laying machine for laying at least one flexible casing or tube, cable or wire including: a blade arrangement for making a trench in the ground, a consolidation and laying means being arranged behind the blade arrangement, for clearing and safe-guarding the trench from collapsing while laying at least one flexible casing or tube, cable or wire into the trench. A blade assembly comprising compartments for cooling fluid and air.

Abstract: The present invention relates to a laying machine for laying at least one flexible casing or tube, cable or wire including: a blade arrangement for making a trench in the ground, a consolidation and laying means being arranged behind the blade arrangement, for clearing and safe-guarding the trench from collapsing while laying at least one flexible casing or tube, cable or wire into the trench. A blade assembly comprising compartments for cooling fluid and air.

Abstract: The present invention relates to a laying machine for laying at least one flexible casing or tube, cable or wire including: a blade arrangement for making a trench in the ground, a consolidation and laying means being arranged behind the blade arrangement, for clearing and safe-guarding the trench from collapsing while laying at least one flexible casing or tube, cable or wire into the trench. A blade assembly comprising compartments for cooling fluid and air.

Abstract: The present invention relates to a laying machine for laying at least one flexible casing or tube, cable or wire including: a blade arrangement for making a trench in the ground, a consolidation and laying means being arranged behind the blade arrangement, for clearing and safe-guarding the trench from collapsing while laying at least one flexible casing or tube, cable or wire into the trench. A blade assembly comprising compartments for cooling fluid and air.

Abstract: The present invention relates to a laying machine for laying at least one flexible casing or tube, cable or wire including: a blade arrangement for making a trench in the ground, a consolidation and laying means being arranged behind the blade arrangement, for clearing and safe-guarding the trench from collapsing while laying at least one flexible casing or tube, cable or wire into the trench. A blade assembly comprising compartments for cooling fluid and air.

Abstract: The present disclosure presents a laying machine for laying at least one flexible casing or tube, cable, or wire. The laying machine includes a blade arrangement for making a trench in the ground. The laying machine can also include a consolidation and laying means being arranged behind the blade arrangement for clearing and safeguarding the trench from collapsing while laying at least one flexible casing or tube, cable or wire into the trench. Additionally, a blade assembly including compartments for cooling fluid and air is presented herein.

Abstract: The present disclosure presents a laying machine for laying at least one flexible casing or tube, cable, or wire. The laying machine includes a blade arrangement for making a trench in the ground. The laying machine can also include a consolidation and laying means being arranged behind the blade arrangement for clearing and safeguarding the trench from collapsing while laying at least one flexible casing or tube, cable or wire into the trench. Additionally, a blade assembly including compartments for cooling fluid and air is presented herein.

Abstract: A self propelled concrete saw compensates for blade cutting resistance, for example by adjusting a movable drive assembly. An actuator may be used to move the drive assembly, for example through the operation of a control switch by an operator.

Abstract: A handle support and adjustment assembly for a saw allows the handle to be adjusted in length and/or angle relative to the saw.

Abstract: A bladeshaft assembly for a cutting saw includes a hollow tubular housing member. A shaft member extends coaxially through the tubular housing member and has at least one end that extends outwardly of the tubular housing member. At least one bearing member is disposed in surrounding relation to a portion of the shaft member. A seal is provided for sealing around the at least one end of the shaft member. A pulley member is mounted on the at least one end of the shaft member that extends outwardly of the tubular housing member. A tapered fit is formed cooperatively between the pulley member and the end of the shaft member so as to enable a press fit relation between the pulley member and the end of the shaft member. Additionally, first and second gauge points are formed respectively between the pulley member and the at least one end of said shaft member; the first and second gauge points engaging one another so as to establish a predetermined placement of the pulley member on the end of the shaft member.

Abstract: A self-propelled concrete saw capable of developing at least 50 horsepower and having a narrow footprint for maneuvering in tight spaces. Mounted on the frame of the saw is an automotive style or industrial in-line engine having a crankshaft fitted with a flywheel, a transmission pulley, and a power train drive sprocket. Also mounted on the frame is a power train including a jack shaft assembly operatively connected to a cutting blade assembly. A flexible, positive drive linkage interconnects the power train drive sprocket to the jack shaft assembly to deliver rotative power from the engine respectively to the jack shaft assembly and to the cutting blade assembly.

Abstract: A concrete saw is provided having an engine aligned along a longitudinal axis of the saw frame to minimize the width of the saw and provide a more balanced system. A clutch assembly is attached to a forward end of the engine to disengage the saw blade without stopping the engine. A right angle gear box is provided proximate the driven side of the clutch assembly to transfer driving rotational forces from the engine to a transversely aligned driven shaft. The driven shaft includes drive pulleys mounted upon opposite ends thereof, which are aligned with driven pulleys mounted upon opposite ends of a blade support shaft and linked to one another via multiple belts. This alignment evenly balances the load transfer while facilitating the use of vibration isolators between the engine, gear box and frame. A hydraulically controlled depth stop mechanism is included for setting a maximum cut depth. The engine speed is controlled by an electronic governor.

Abstract: A concrete saw is provided having an engine aligned along a longitudinal axis of the saw frame to minimize the width of the saw and provide a more balanced system. A clutch assembly is attached to a forward end of the engine to disengage the saw blade without stopping the engine. A right angle gear box is provided proximate the driven side of the clutch assembly to transfer driving rotational forces from the engine to a transversely aligned driven shaft. The driven shaft includes drive pulleys mounted upon opposite ends thereof, which are aligned with driven pulleys mounted upon opposite ends of a blade support shaft and linked to one another via multiple belts. This alignment evenly balances the load transfer while facilitating the use of vibration isolators between the engine, gear box and frame. A hydraulically controlled depth stop mechanism is included for setting a maximum cut depth. The engine speed is controlled by an electronic governor.

Abstract: A concrete saw is provided having an engine aligned along a longitudinal axis of the saw frame to minimize the width of the saw and provide a more balanced system. A clutch assembly is attached to a forward end of the engine to disengage the saw blade without stopping the engine. A right angle gear box is provided proximate the driven side of the clutch assembly to transfer driving rotational forces from the engine to a transversely aligned driven shaft. The driven shaft includes drive pulleys mounted upon opposite ends thereof, which are aligned with driven pulleys mounted upon opposite ends of a blade support shaft and linked to one another via multiple belts. This alignment evenly balances the load transfer while facilitating the use of vibration isolators between the engine, gear box and frame. A hydraulically controlled depth stop mechanism is included for setting a maximum cut depth. The engine speed is controlled by an electronic governor.

Abstract: A concrete saw is provided having an engine aligned along a longitudinal axis of the saw frame to minimize the width of the saw and provide a more balanced system. A clutch assembly is attached to a forward end of the engine to disengage the saw blade without stopping the engine. A right angle gear box is provided proximate the driven side of the clutch assembly to transfer driving rotational forces from the engine to a transversely aligned driven shaft. The driven shaft includes drive pulleys mounted upon opposite ends thereof, which are aligned with driven pulleys mounted upon opposite ends of a blade support shaft and linked to one another via multiple belts. This alignment evenly balances the load transfer while facilitating the use of vibration isolators between the engine, gear box and frame. A hydraulically controlled depth stop mechanism is included for setting a maximum cut depth. The engine speed is controlled by an electronic governor.

Abstract: A slurry recovery system for a wet cutting saw which includes a watering section, a containment section, a gas-liquid separator section and a discharge section. The watering section contains a pressure gauge, shut-off valve and flowmeter to control the flow of liquid onto the saw blade. The containment section includes a blade cover and bellows which surround the saw blade and form a sawing chamber. A drag bar, which is attached to the lower surface of the bellow, skids along the cutting surface and removes the slurry therefrom. The drag bar includes inner and outer flexible walls that create a vacuum chamber around the saw. The slurry is vacuumed out of the vacuum chamber and conveyed to a gas-liquid separator tank, wherein the slurry and air are separated. The slurry passes to a diaphragm pump and the air passes to a discharge blower. The separator tank includes a blower protector which contains a float and seals.

Abstract: The abrasive cleaning device operates to direct streams of abrasive particles from a plurality of nozzles against a surface to be cleaned. The nozzles are recessed in a nozzle chamber and each receives a separate stream of abrasive particles from a divider unit. The divider unit receives a single stream of compressed air and abrasive particles and a supply source and separates the abrasive particles from the compressed air. The divider unit then divides the compressed air into a plurality of streams of equal pressure, and adds an equal amount of abrasive particles to each stream. A vacuum source creates a vacuum in an abrasive particle reclamation unit and in vacuum chambers connected to the abrasive particle reclamation unit. The vacuum chambers extend on each side of the nozzle chamber but are separate therefrom. Abrasive particles and debris from the surface to be cleaned pass through the vacuum chambers to the abrasive particle reclamation unit where the debris is separated from the abrasive particles.

Abstract: A machine for cutting transverse grooves in a concrete road surface includes a rotary cutter head supported on a carriage that can be shifted longitudinally along the machine frame structure. By using a combination of motions of the frame structure and cutter head carriage it is possible to form grooves spanning substantially the entire distance from one curb to the other curb during a single pass of the machine.

Abstract: A machine for cutting spaced grooves in a concrete road surface includes at least two laterally-spaced hydraulic cylinders which apply downward operating forces on a travelling cutter head. Each cylinder is individually pressurized through a pressure line that incorporates a pressure reducing valve and a pressure relief valve. The pressure setting for the relief valve is slightly higher than the setting of the reducing valve, such that the cylinder pressure is closely maintained between a high limit established by the relief valve and a low limit established by the reducing valve.