Abstract: This invention discloses a mobile tower system in which a telescoping tower may be with a plurality of tower structures may be extended to a height much greater than its contracted length. The tower may be transported horizontal, rotated to a vertical position and then the individual tower structures extended and secured via spring pins relative to the adjacent tower structure, the erection of the tower sections may be with external equipment such as a boom truck, or utilizing an internal hydraulic cylinder.

Abstract: A technique facilitates well servicing operations by utilizing a hopper system to introduce a dry additive into a mixing tank. The hopper system comprises a feeder and a hopper that delivers the dry additive into the feeder. The feeder, in turn, enables introduction of the dry additive into the cement mixing tank in a controlled manner. When the hopper system is used on a transportable cementing unit, the hopper system may be mounted on a cement mixing tank and also may incorporate a hopper that is both expandable to accommodate a greater amount of dry additive and contractible to facilitate transport.

Abstract: A cabling system and accessory for attachment to the rubber boot surrounding the metal chute area of either a front or rear loader concrete truck for improving and enhancing the function and purpose of the rubber boot and chute area of a ready mix concrete truck, and for increasing the safety, health, and environmental aspects of cleaning thereof, wherein physical exertion and risk of injury to the truck operator is minimized, wherein the quantity of water utilized for cleaning is reduced, wherein the overall cleanliness of the truck is improved, and wherein the functional life span of the boot, chute, mechanical parts, and the truck itself is increased.

Abstract: A method for cementing a casing string in a borehole includes the steps of moveably coupling an outer sleeve on a casing segment; making up the casing segment with the outer sleeve into a casing string; running the casing string in a borehole; displacing a cement slurry into an annulus exterior to the casing string; and moving the outer sleeve relative to the casing string to agitate the cement slurry. A transfer device is used to rotate the outer sleeve against the cement slurry. Multiple outer sleeves may be received on the casing string at spaced intervals. In one embodiment, the transfer device may include a mechanical clutch through which the outer sleeves may be rotated. The mechanical clutch may be driven using an inner cementing string that provides a supply of cement slurry to the annulus.

Abstract: An improved volumetric cement mixer has bins, containers, and troughs formed from UHMW material reinforced with expanded metal. A metal skeletal frame supports the UHMW walls of the sand and gravel bins, while mininizing the weight of the mixer. The UHMW troughs for the boot mixer and discharge chute improve product flow and mixing, and simplifies cleaning of the troughs.

Abstract: A process for mixing or dispersing liquids is provided that includes introducing liquids to be mixed or dispersed into a mixing device having a cylindrical support. The cylindrical support includes an inlet nozzle having a bore which is in fluid communication through a turbulence chamber with a bore of an outlet nozzle, wherein the bores of the nozzles are axially spaced apart relative to one another. The liquids are then allowed to enter the turbulence chamber through the bore of the inlet nozzle where the liquids are mixed or dispersed. The mixed or dispersed liquid is then recovered from the outlet nozzle. Various devices for mixing or dispersing liquids are also provided.

Abstract: A twin shaft “compulsory mixer” having a capacity in the range of twelve cubic yards has a static mixing chamber bottom defined from two horizontally disposed and interfering cylindrical shapes. Two centrally disposed elongate rectilinear discharge gates are each defined from an end in the bottom of the static mixing chamber to abut at the middle of the static mixing chamber. At the middle bottom of the static mixing chamber, a tensioning rod is placed extending normally across the abutted ends of the two rectilinear slots. Two eccentrically mounted elongate rectilinear gates are mounted for movement into and out of sealing relation to the rectilinear slot centrally of the static mixing chamber. These gates are mounted centrally of the mixing chamber to a pillow block and spherical bearing arrangement and actuated at the respective static mixer chamber ends by conventional piston drives. Reducing the gates in length, reduces deflection making chamber sealing possible.

Abstract: A twin shaft “compulsory mixer” having a capacity in the range of twelve cubic yards has a static mixing chamber bottom defined from two horizontally disposed and interfering cylindrical shapes. Two centrally disposed elongate rectilinear discharge gates are each defined from an end in the bottom of the static mixing chamber to abut at the middle of the static mixing chamber. At the middle bottom of the static mixing chamber, a tensioning rod is placed extending normally across the abutted ends of the two rectilinear slots. Two eccentrically mounted elongate rectilinear gates are mounted for movement into and out of sealing relation to the rectilinear slot centrally of the static mixing chamber. These gates are mounted centrally of the mixing chamber to a pillow block and spherical bearing arrangement and actuated at the respective static mixer chamber ends by conventional piston drives. Reducing the gates in length, reduces deflection making chamber sealing possible.

Abstract: A three-yard concrete bucket with integral ladder is provided which comprises a series of steps attached by welding to the exterior perimeter of the bucket. When attached, a worker can easily inspect the inside of the bucket, clean the bucket, or enter the interior of the bucket. No external ladders or devices are needed.

Abstract: There is disclosed a mobile apparatus for mixing and dispensing mixtures from an ingredients container including a hopper with a channel-shaped floor portion containing a screw auger. A cover over the screw auger may be raised so that a gap between the cover and the hopper walls allows metered amounts of ingredients to be conveyed by the screw auger to a separate mixer and a dispenser. The mixer and dispenser can be in the form of a tapering ribbon-blade mixer located in a frusto conical hollow body pivotally, slidably and extendably mounted at the rear of a transport vehicle. The mixer and dispenser can be pivotally mounted to a bracket mounted on rails to move slidably across the width of the transport vehicle.

Abstract: A mobile concrete remix and transfer device includes an elongate open-topped surge bin, a remixing and transfer agitator rotatably mounted in the bin to move concrete toward one end, and an upwardly inclined discharge screw conveyor mounted in one end of the bin to transfer concrete therefrom to an upper discharge end near the upper edge of the surge bin. The device is particularly useful for direct or shuttle transfer hauling within the close confines of tunnel construction in a manner in which concrete can be loaded into and discharged from the bin at points directly adjacent the open upper edge thereof without the need for vertical lifting or tilting adjustment of the bin. The device may also be skid-mounted and positioned directly on the ground, loaded directly from a low discharge height truck mixer, and discharged directly into a concrete pump hopper, bucket, or the like.

Abstract: Process and apparatus are provided to distribute specified, premixed quantities of dry mortar mix and cement to a construction site. Bulk bags and a hopper apparatus are transported to the construction site and utilized with a forklift and a mixer device. The hopper apparatus is adjustably assembled and is constructed and arranged to be hand operable to efficiently meter homogeneous predetermined quantities of the mixture out of a discharge chute. The premixed contents in the bulk bags are dumped into the hopper apparatus and discharged in metered quantities into the mixer device. A water dispensing structure is provided to discharge a predetermined volume into the mixer device to form mortar or concrete for use.

Abstract: A burner (13) and a conveyor (6) for aggregates (7) into the drum (2) penetrate into the drum at opposite ends (2a, 2b). Circulation of the gases inside the drum occurs in direction opposite to circulation of the aggregates. The burner has an elongated body (12) arranged in the axial direction of the drum. The drum comprises, from the inlet end (2a) to the outlet end (2b), a drying zone (21), a flame zone (22), a zone for introducing recycled mixes (23') and a heating and mixing zone (23). The device may be associated with a mixer (42) of the conventional type in which the bituminous products (11) leaving the drum (2) are mixed with liquid bitumen and worked. The invention enables coated products for road surfaces to be prepared without the production of bitumen vapor.

Abstract: A reverse flow post-mixer attachment for direct-fixed asphaltic concrete mixers includes a modified discharge box for the downstream end of the drum and an enclosure for the downstream portion of the drum forming a passage along the exterior of the drum. If the smoke point of the liquid asphalt to be added to the material in the drum meets an established standard it is injected into the material upstream of the downstream end of the drum and discharged from the latter end in the normal manner. If the smoke point of the asphalt does not meet the standard, the material exiting the drum is diverted into the passage along the exterior of the drum and the asphalt added there out of the burner stream in the durm. The material and asphalt are then mixed and moved through the passage and finally discharged.

Abstract: A reverse flow post-mixer attachment for direct-fixed asphaltic concrete mixers includes a modified discharge box for the downstream end of the drum and an enclosure for the downstream portion of the drum forming a passage along the exterior of the drum. If the smoke point of the liquid asphalt to be added to the material in the drum meets an established standard it is injected into the material upstream of the downstream end of the drum and discharged from the latter end in the normal manner. If the smoke point of the asphalt does not meet the standard, the material exiting the drum is diverted into the passage along the exterior of the drum and the asphalt added there out of the burner stream in the drum. The material and asphalt are then mixed and moved through the passage and finally discharged.

Abstract: A double-shaft forced-feed mixer, for example for building material mixtures, is proposed which is assembled according to the principle of movement of the batch-type mixer and is usable both for continuous and discontinuous operation.

Abstract: A mixing plant suitable for mixing of particulate material of different densities such as road base materials with the addition of water or other liquid. The mixing plant includes a receptacle for particulate materials and a mixing station or pug mill. There is provided first conveying means suitably in the form of a conveyor belt for conveying particulate material from the receptacle to the mixing station. There is also provided a container for finely divided material which may act as a binding agent or stabilizer for the particulate material.There is also provided a second conveying means such as a conveyor belt for conveying finely divided material to the mixing station. There is also provided means for adding water or other liquid to the finely divided material and the particulate material at the mixing station.There is also provided a collection station or discharge station and means for transporting the mixed materials from the mixing station to the collection station.

Abstract: Apparatus for mixing charges of flowable solid materials has a hollow cylindrical housing with two upright end walls and a hollow shell between the end walls. The lower part of the shell has a large material evacuating opening sealable by two mirror symmetrical doors which are pivotable about horizontal axes. The opening extends all the way between the end walls and is large enough to allow for gravitational outflow of the entire contents of the housing irrespective of the angle of repose of the charge. The doors are bounded by edge faces which make oblique angles with their external surfaces and abut against complementary edge faces of the end walls and shell. Sealing strips on the shell and end walls are engaged by deforming members at the external surfaces of the doors when the opening is closed. The abutting edge faces of the doors also make oblique angles with the respective external surfaces.

Abstract: An apparatus in which grout is extruded from the same chamber in which mixed. Provision is made to clean the system after it has undergone one cycle of mixing and extrusion. The basic components of the apparatus include a mixing chamber with a mixing ram having collapsible mixing fingers. Encircling this mixing ram is an extruding ram with a ram head. The mixing ram is concentric with and extends through a lower extruding ram cylinder with the upper portion of the mixing ram having a mixing head normally seated in the mixing chamber and concentric with the ram head. Provision is made to bring water into the mixing chamber, to insert grout in the same chamber, and to outlet the water and grout from the same.

Abstract: The percentage of entrapped air in mortar, plaster, concrete or a like building material which is prepared on a continuous basis is increased, preferably by at least 100 percent, by providing a mixing chamber with one or more barriers which oppose the progress of a mixture of solid and liquid constituents toward the outlet so that each increment of the mixture dwells in the mixing chamber for a relatively long interval of time which exceeds 15 seconds and can even exceed 40 or 50 seconds. The mixing chamber defines a sump for a supply of the mixture, and the rate at which the material leaves the chamber equals or approximates the rate of admission of constituents into the chamber so that the quantity of material which forms the supply is constant. Such supply is agitated by blades, paddles, vanes, grates, lattices or like devices to ensure continuous penetration of air into the material which dwells in, as well as the material which advances through, the mixing chamber.

Abstract: Disclosed is an apparatus for blending sand and solid additives selectively and at selected rates into water for injection into a well. The apparatus may be truck mounted, and includes a frame, an input line with manifold and pump, a mixing tank, a variable venturi nozzle for delivering water to the tank, and an output line with pump, manifold, and recycle line. An auger delivers sand to the mixing tank. Dry chemicals are fed to the tank adjacent the variable venturi nozzle where the water is turbulent, at low pressure, and in high shear. Liquid chemicals may also be pumped into the tank.

Abstract: A mixer for different products and in particular for foundry sands.This mixer, which comprises a frame supporting a fixed mixing tank whose axis is vertical and which is provided with an emptying trap, and at least one vertical turbine plunging into the tank, in the neighborhood of the sidewall thereof, is characterized in that the tank is provided with a rotating bottom able to be rotated by a driving member, and in that the emptying trap is formed in the sidewall of the tank, in a zone other than that concerning the turbine.Application: preparation of foundry sands.

Abstract: A transit concrete mixer includes a drum which is mounted for discharge either forwardly or reversely of the vehicle and has two sets of flights for two-stage concrete loading and discharging. One set of flights is particularly useful for carrying the aggregate from the base of the drum upwardly along the major axis of the drum and a second set of flights is adapted for receiving the aggregate and transporting it through the remaining length of the drum to the discharge opening of the drum. Thus, for relatively stiff, low slump aggregates which are useful in paving and for formless type useage, the concrete mixer unit is fully adaptable for such low slump values. Conversely, the same set of flights is adapted for charging and discharging relatively high slump values which are utilized for form type applications.

Abstract: A hammering system for a compartmented, rotary metering drum comprising an elongated member rotatably supported on bearings, a lever pivotably mounted on the elongated member, hammers mounted on one end portion of the lever, and a biasing mechanism secured to the other end portion of the lever urging the lever to pivot about its fulcrum to engage the hammers with the metering drum. The metering drum has cocking structures associated with the leading face of each vane on the drum which forces the hammers away from the drum and suddenly releases the hammers to subsequently strike the drum to knock away any caked material therefrom.