Abstract: An assembly for installation into a fuel dispensing pump permits its conversion from gallon- to liter-based operation upon the mere pulling of a shift pin.

Abstract: An implement for use with a prime mover, such as a tractor, for applying a uniform coating of a liquid sealant to pavement comprising a plurality of spray tubes for spraying a coating of the liquid sealant onto the pavement and a rotary brush for brushing the sealant onto the pavement and for ensuring that a uniform coating of the sealant is applied to the pavement.

Abstract: This invention relates to a hydraulic control system for an aircraft starter-drive mechanism that includes a generator that can be driven as a motor drivingly connected through a differential, which is mutually connected to first and second hydraulic units and to an engine drive shaft during a start mode. The hydraulic control system includes a control valve arrangement, cooperatively coupled to the first and second hydraulic units, and operative in the starting mode to control flow between the hydraulic units, to thereby divide the delivery of rotary power from the generator/motor to the engine drive shaft through the differential and the hydraulic units.

Abstract: A high density concrete placer is longitudinally translatable along a pair of parallel oriented support rails positioned adjacent to an area in which wet concrete has been poured. The concrete placer includes a bridge having first and second ends and first and second roller assemblies coupled to the first and second ends of the bridge. The roller assemblies contact the support rails and enable the bridge to be longitudinally translated along the support rails. A frame includes a plurality of immersible vibrator units which are coupled at spaced apart intervals along one side of the frame and descend vertically downward therefrom. A rolling table is coupled to the bridge and to the frame to be laterally translated between the first and second ends of the bridge. The frame includes a subframe which is vertically displaceable between a first and a second position and serves to vertically displace the vibrator units between a first and a second position.

Abstract: A ground heating system comprises a porous stabilization layer provided between a pipe system for supplying heat and a pipe system for supplying water to control the ground humidity. The stabilization layer functions as a water distributor and heat storage means.

Abstract: An earth compacting machine includes an earth contacting drum rotatably supported on at least one main drum support bearing mounted in a drum support assembly which is fixed to the machine frame. Means is provided to slowly rotate the drum with respect to the frame. There is a slow speed rotary seal between the drum support assembly and a main drum hub which extends outwardly from the drum. The interior of the drum support assembly, the rotary seal and an outer surface of the main drum hub form a first lubrication oil sump. Oil is introduced into this sump to cover a substantial lower portion of the main drum support bearing. A vibratory shaft bearing is mounted in a vibratory shaft bearing housing at each end of the drum. These shaft bearings support a vibratory shaft inside of the drum. Means opening through the main drum support bearing and the main drum hub is provided to rapidly rotate the vibratory shaft with respect to the drum.

Abstract: A set of paving elements for the production of paving and a method of using the same are disclosed. In a preferred form, the set comprises four cylindrical paving elements of equal height and of different diameter having a diametric proportion to each other of 1:1.4:1.8:2.2. Two or more the of paving elements from each of plurality of sets may be laid to form a paving strip with the paving elements laid next to each other in mutual contact.

Abstract: The invention relates to a change-under-load transmission having an input shaft (1) and an output shaft (6), each carrying a pair of gearwheels (2, 3; 4, 5). A composite layshaft comprises two pairs of coaxial shafts (7, 8; 9, 10) which are aligned axially with one another. At their adjacent ends the shafts carry friction coupling elements (25, 31 and 25, 30) which have effective coupling faces (25', 31'; 26' 30'). At their remote ends each of the coaxial shafts carries a gearwheel (23, 27; 24, 28) which is in permanent mesh with an associated one of the gear wheels on the respective input or output shaft. Between the adjacent ends of the two pairs of coaxial shafts a central friction coupling element (32) is positioned so as to be freely slidable axially with respect to the coaxial shafts. Correspondingly positioned ones (7, 9 in FIG. 1; 8, 10 in FIG.

Abstract: Machines for spreading wet concrete pavement and/or laying reinforcing rods in the spread wet concrete embodying a main frame movable along a subgrade for pavement by power-driven endless tracks, one or two power-driven, transverse, rotatable augers for spreading wet concrete laterally between slip form side plates and ahead of a height-adjustable strike-off blade or plate on the frame, said side plates optionally including plates projecting forwardly of the machine from opposite sides thereof, and a cross plate extending transversely between respective forward portions of said plates to define a three-sided enclosure into which wet concrete to be spread by said machine may be dumped, and a plurality of height-adjustable, side-by-side, substantially horizontal tubes extending in the forward-to-rearward direction and along the lower side of said three-sided enclosure at a level at which reinforcing rods, which pass through said tubes, are to be placed in the spread wet concrete, the rearward, exit ends of said

Abstract: A side delivery attachment for a spreader truck which converts it from a spreader to an apparatus for applying crushed rock in measured amounts accurately to a desired strip of the shoulder of a road.

Abstract: Speed and direction of movement of a vibratory roller are controlled by a member which is manually shiftable to a neutral position at which the roller is stopped, through a range of forward positions at one side of neutral, and through a range of rearward positions at the opposite side of neutral. The member actuates a cutout switch that is open only when said member is in neutral, a forward switch that is closed only in the range of forward positions, and a reverse switch that is closed only in the rearward range. A vibratory exciter for the roller operates forwardly when a forward solenoid is energized and reversely when a reverse solenoid is energized. Each solenoid is energized through the contacts of an associated relay, which are closed when the coil of the relay is energized through a circuit comprising, in series, a current source, the cutout switch, and the respective forward or reverse switch for the solenoid.

Abstract: A bridge construction includes a bridge deck having a grid system of longitudinally extending members and criss-crossing transverse members supported at a vertically spaced relationship above a base plate. The grid system and base plate are integrally supported by a floor system and main support members. The base plate and grid system act as reinforcements for a fill material like concrete.

Abstract: Apparatus for pulverizing concrete sheets such as roadways, and for separating reinforcing steel from concrete, having an anvil for positioning under and in supporting relationship to the concrete, a hammer for repeatedly striking the concrete from above, and a drive mechanism for imparting relative movement between the concrete and the anvil and hammer combination.

Abstract: The invention is an expansion joint seal for the gap in a bridge decking wherein load supporting splines are embedded in an elastomer strip that bridges the gap. The splines are at an incline to the longitudinal axis of the strip so that they have a rotational movement as the width of the gap changes.

Abstract: Energy-absorption apparatus for truck docks constructed and arranged to withstand impact of semi-trailers backing into a truck dock without damage to the dock over a long period of time. The apparatus of the invention includes a plurality of spring steel leaves disposed in dependent relation from a point above the level of the dock to a point below the dock level so as to accommodate truck trailers of varying heights.

Abstract: A torque converter for inclusion between a driving shaft and a driven shaft. Preferably there is more than one torque generator and a gear train in parallel between the input and output shafts. The torque generators and any attached driving gears rotate about shafts whose axes are preferably symmetrically displaced about, and are stationary relative to, the axis of the input shaft. The above mentioned torque generators each preferably have a pair of radially opposed eccentrically mounted weights thereon. Preferably there are at least two pairs of weights on each torque generating train, together with means for varying the phasing between the pairs of weights. Means is also provided for accommodating slight misalignments between the shafts of the torque generating trains. Each of the torque generating trains has attached thereto at least one unidirectional clutch which allows the shafts to turn in only one direction.

Abstract: A roadway expansion joint and seal is provided which comprises a pair of parallel metal side rails having a flexible membrane secured therebetween. The membrane includes enlarged opposite side edge portions which are mounted within respective C-shaped sockets in the side rails, and the side edge portions of the membrane each include a cavity which permits the side edges to be assembled in the sockets by initially compressing each side edge portion so as to collapse the cavity, while laterally forcing the same into the socket. Once in position, a relatively incompressible material is injected into the cavities of the side edge portions so as to substantially fill the cavities and thereby resist the withdrawal of the side edge portions from the sockets.

Abstract: Manhole sealing device to prevent water from entering a manhole through the corbel joint between the manhole casing and cover frame. The device comprises a flexible tube like membrane spanning the corbel joint of the manhole and provided with first sealing means above the corbel joint to seal the membrane against the inside wall of the cover frame and second sealing means below the corbel joint to seal the flexible membrane against the inside wall of the manhole casing. The portion of the membrane between the first and second sealing means is preferably provided with enough slack to form a inward fold defining an annular pocket to contain any water or other fluids entering the manhole through the corbel joint thereof. In a preferred mode of the present invention the membrane is a bag with a closed bottom to catch any water entering the manhole through or around the manhole cover. The manhole sealing device can be installed in an existing manhole without replacing any of the structural parts thereof.

Abstract: The resistance of structural elastomer products, such as bearing blocks, to compressive forces is reduced by incorporating therein a plurality of small, separate, reinforcing elements of relatively hard material. Such materials include crushed rock, concrete, glass or certain slags and small metal pieces. The reinforcing elements are congregated in an interior section or core which is covered by a marginal section substantially free from reinforcing elements.

Abstract: A method and an apparatus for controlling the temperature of asphalt and concrete bodies (1) in connection to storing of heat in the ground or in rocks, whereby channels (3) are drilled into the ground or the rock at or underneath the asphalt or concrete body the temperature of which is to be controlled, and in the said drilled channels (3) are inserted adaptor elements comprising two or more inner tubes or channels (6; 17) for supply and removal of a heat transport medium. The inner tubes (6; 17) in the adaptor elements are preferably formed so as to open on different levels of the channel (3) and also preferably the adaptor element is formed with cross partition walls (13) providing severaL zones distributed along the channel whereby heat can be transported between the zones and between a particular zone and the body the temperature of which is to be controlled.