Abstract: A weather strip 50 comprises: an assembly part 51 assembled between an anchoring part 5X on an outer-cabin side and an anchoring part 5Y on an inner-cabin side winch are provided on an outer peripheral side of an outer peripheral part2A of a door sash 2 of an automobile; and a hollow seal member 52 and an outer lip 53 integrally molded with an inner-cabin side and an outer-cabin side of the assembly pall 51 respectively, which make elastic contact with an inner-cabin side and an outer-cabin side of a door 1 opening edge of a body panel 3 respectively, wherein: a singular pillar part 54 connects the assembly part 51 with the hollow seal member 52; and the pillar part 54 comprises a curved part 54a.

Abstract: A snap-acting locking device, particularly for lids, doors and the like, has a slider adapted to be associated with a movable member, such as a lid, a door or the like, and to engage by snap-action a locking member provided on a body which the movable member that constitutes its lid, door or the like is articulated. The slider is a single body constituted by an actuation pushbutton provided with a stem, provided with a locking means, and by an elastic member, which is jointly connected to a free end of the stem; the locking means detachably engages the locking member provided in the body.

Abstract: In one aspect of the present invention, a high impact resistant tool comprises a sintered polycrystalline diamond body bonded to a cemented metal carbide substrate at an interface, the body comprising a substantially pointed geometry with an apex, the apex comprising a curved surface that joins a leading side and a trailing side of the body at a first and second transitions respectively, an apex width between the first and second transitions is less than a third of a width of the substrate, and the body also comprises a body thickness from the apex to the interface greater than a third of the width of the substrate.

Abstract: The combination of a building roof section and a flashing repositioning apparatus. The roof section has an upwardly facing surface, with an edge at which there is a fascia, and a depending flashing portion. The flashing repositioning apparatus has a flashing engaging assembly and a manipulating assembly. The flashing engaging assembly has a body defining a wedging surface and a guide surface. The guide surface is configured to be consistently located in a predetermined operative position against the fascia surface wherein the wedging surface is at a predetermined angle relative to the fascia surface. The wedging surface resides between the fascia surface and the flashing portion to define a gap into which a wall of a gutter can be directed.

Abstract: A roof mounting system can include a roof substrate and flashing supportable on the substrate and including an outwardly extending projection having a concave interior side and an aperture extending through the projection between top and bottom surfaces of the flashing. A seal can extend through the aperture and contact at least a portion of the top surface and at least a portion of the bottom surface. The seal can be conformable with the concave interior side and can define a seal aperture substantially aligned with the flashing aperture. A mounting bracket can be supportable on the flashing and can define an aperture sized to receive at least a portion of each of the seal and the projection. A fastener can extend through the mounting bracket aperture, seal aperture, and flashing aperture to inhibit fluid flow through the flashing aperture.

Abstract: A roof mount assembly mounts a structure to a roof having a rafter and a substrate supported by the rafter. The roof mount assembly includes a piece of flashing positioned on the substrate. The flashing includes a first surface, a second surface opposite the first surface and an aperture extending through the flashing. A fastener extends through the flashing aperture. A bracket is connected to the flashing via the fastener, and the bracket is sized to support at least one roof-mounted structure on the roof. A seal is positioned between the flashing aperture and the fastener. The seal is sized to form a water-tight seal with the aperture to inhibit flow of fluid through the aperture. The seal includes a first portion and a second portion, in which the first portion is positioned to abut the flashing first surface and the second portion is positioned to extend through the aperture.

Abstract: A building system utilizing commercially available component parts, preassembled into panelized and modular components that are easily and quickly assembled and disassembled, and a lightweight compact building system for efficient transport and assembly, not requiring a central manufacturing plant or specialized construction details. A building system to provide for numerous building floor plan layouts and configurations, and a building system that provides for the reuse of the building system component parts to construct permanent structures of virtually any size, floor plan layout, or architectural style.

Abstract: A roof mounting system can include a roof substrate and flashing supportable on the substrate and including an outwardly extending projection having a concave interior side and an aperture extending through the projection between top and bottom surfaces of the flashing. A seal can extend through the aperture and contact at least a portion of the top surface and at least a portion of the bottom surface. The seal can be conformable with the concave interior side and can define a seal aperture substantially aligned with the flashing aperture. A mounting bracket can be supportable on the flashing and can define an aperture sized to receive at least a portion of each of the seal and the projection. A fastener can extend through the mounting bracket aperture, seal aperture, and flashing aperture to inhibit fluid flow through the flashing aperture.

Abstract: A climbing screen support system comprising a support rail fixable to a surface adjacent an edge of a structure; a mounting arm slidably securable to the rail so as to confine movement of the mounting arm in a linear direction along the support rail; and a climbing shoe attachable to an end of the mounting arm, wherein the support system is configured such that the mounting arm may be securely mounted to the support rail remote from the edge of the structure and subsequently slideable along the support rail such that the climbing shoe protrudes from the edge of the structure by a predetermined distance.

Abstract: A main work construction method for reinforced concrete building and a building construction machine are provided. The construction method involves constructing a top story framework on a lifting mechanisms (21) and a lifting platform (22); raising the top story framework by the lifting mechanisms (21); resetting the lifting platform (22) to an original position; constructing a second top story framework on the lifting mechanisms (21) and the lifting platform (22); permanently connecting the top story framework with the second top story framework; raising the top story framework and the second top story framework by the lifting mechanisms (21); and constructing repeatedly till the ground story framework is accomplished so as to complete the reverse story-by-story construction from the top story to the ground story.

Abstract: A rooftop tiling system may include multi-functional roof tiles integrating photovoltaic and thermal converters for solar energy. The tiles allow a heat transfer fluid to circulate through inner flow channels of the tiles, and light concentration photovoltaic modules may be present atop the tiles together with a transmission or light reflection focusing device.

Abstract: The invention is a photovoltaic panel wall mounted on a building frame and has at least two photovoltaic assembly units. Each of the at least two photovoltaic assembly units includes an electrical connector having a male terminal and a female terminal that are configured to be detachably engaged. An opening is formed in the building frame, and one of the male and female terminals of the electrical connector is fixed in the opening.

Abstract: A roof mount assembly mounts a structure to a roof having a rafter and a substrate supported by the rafter. The roof mount assembly includes a piece of flashing positioned on the substrate. The flashing includes a first surface, a second surface opposite the first surface and an aperture extending through the flashing. A fastener extends through the flashing aperture. A bracket is connected to the flashing via the fastener, and the bracket is sized to support at least one roof-mounted structure on the roof. A seal is positioned between the flashing aperture and the fastener. The seal is sized to form a water-tight seal with the aperture to inhibit flow of fluid through the aperture. The seal includes a first portion and a second portion, in which the first portion is positioned to abut the flashing first surface and the second portion is positioned to extend through the aperture.

Abstract: A modular shell system of a hard insulation material fabricated in a geometric shape that encapsulates a pipe in insulation is provided. In an attic installation for example, the entire insulation component is inserted over a pipe and into the space between the building structural wood framing members resting on the interior sheathing below. By placing a series of these interlocking insulating modules along a pipe that is run perpendicular to the building construction members, the piping is encapsulated in a continuous insulating system along its entire length. This design facilitates natural heat flow into the pipe with an open pipe slot cavity in the insulating module that allows natural convection heat to pass up through the elongated piping slot, allowing it to come into contact with this piping.

Abstract: A precast reinforced concrete base mat element, a base mat assembly and method for constructing a base mat assembly from a plurality of the base mat elements are described. The base mat element comprises a concrete body having first and second conduits extending there through in first and second generally perpendicular directions and a liner plate anchored in the concrete body. Preferably the concrete bodies have interlocking surfaces formed there on. A plurality of the base mat elements may be juxtaposed together with the interlocking surfaces interlocking with one another and with the tensile members extending through the first and second tensile conduits and being post-tensioned and anchored about the base mat elements to clamp the base mat elements together. The liner plates may then be welded together to form a generally planar membrane.

Abstract: A backer rod adapted for forming a fire-resistant seal within a construction joint. The backer rod may include an elongated tube defining a total assembly volume and a hollow interior, and a core disposed within the hollow interior. The tube is formed of a combustible foam plastic which disintegrates when exposed to fire. The core material is expandable when exposed to fire, such that the core has an intumescent expansion factor sufficient to expand to a volume beyond the total assembly volume. The backer rod may be press fit into a void between two surfaces to a depth. A sealant layer may be formed within the void. When exposed to fire on a side opposite the sealant layer, the external shell disintegrates, the core expands within the void in a direction away from the sealant layer, and a fire-resistant barrier is formed within the void between the surfaces.

Abstract: The installation of a foundation enables a superstructure to be installed and supported in a desired attitude such as a vertical attitude at the foundation. An installation template is placed at the selected location and support sites on the installation template can be adjusted so that the installation template will support the foundation subassembly in a manner such that the superstructure can be supported in said desired attitude. The foundation subassembly is placed onto the installation template using a lifting subassembly that is secured to the foundation subassembly. The foundation subassembly is fixed in place by concrete or the like into which the foundation assembly is inserted. The superstructure can then be secured to the foundation subassembly. The superstructure can comprise a post adapted to hold a panel for deflecting road noise.

Abstract: A roof mounting system can include a roof substrate and flashing supportable on the substrate and including an outwardly extending projection having a concave interior side and an aperture extending through the projection between top and bottom surfaces of the flashing. A seal can extend through the aperture and contact at least a portion of the top surface and at least a portion of the bottom surface. The seal can be conformable with the concave interior side and can define a seal aperture substantially aligned with the flashing aperture. A mounting bracket can be supportable on the flashing and can define an aperture sized to receive at least a portion of each of the seal and the projection. A fastener can extend through the mounting bracket aperture, seal aperture, and flashing aperture to inhibit fluid flow through the flashing aperture.

Abstract: An insulated siding panel comprises a foam insulation layer, an attachment member, and optionally a veneer layer. The foam insulation layer comprises a front face, a rear face, a tongue along a first end edge, a groove along a second end edge, and a slot defined in the rear face. The attachment member comprises an attachment rail and a member extending transversely from the attachment rail. The member of the attachment member is inserted into the slot of the foam insulation layer. When present, the veneer layer is attached to the front face of the foam insulation layer. When joined with other insulated siding panels, the interlocking occurs along the foam insulation layers to form an unbroken layer of insulation.

Abstract: A method of manufacturing terrazzo tiles and tiles manufactured in accordance with the method is described. A resin, curing agent, filler, and pigment are poured into a mold. Stone chips are then poured into the mold to settle with the majority at the bottom of the mold. Thereafter, curing occurs to result in rough tiles which are ground and then polished with the upper surface being the resulting tile surface at which the majority of the stones settle. The tiles are assembled onto a floor with grout lines resulting from spacing of the tiles, one from another. Grout made of resin or a resign and terrazzo chip mixture is then poured in and skived, and the floor polished to result in a sealed monolithic surface.

Abstract: An apparatus for a concrete form of an insulated wall has opposed, spaced apart and parallel wall panels, each having an inner surface, upper edge surface and a lower edge surface. Plural retainers are secured within each of the panels at spaced apart intervals, each retainer including a connecting portion extending outwardly from the inner surface of each panel, and an anchoring portion. The anchoring portion includes a framework disposed within the panels, an upper connector extending upwardly from each panel's upper edge surface and a lower connector extending downwardly from each panel's lower edge surface. The upper and lower connectors respectively engage upper and lower connectors of the next vertically adjacent panel to securely attach the panels together. Plural cross webs extends between the panels to tie them together, the cross webs being connection to the connecting portions of opposed retainers in the panels.

Abstract: A connector arrangement for a wall panel system is provided which includes connector blocks that join serially-adjacent wall panel frames together in proper alignment with each other. These corner blocks also are matable with a system of spacer strips, light block strips, single-side trim covers and multi-side trim covers which enclose the connector blocks and connector structure. A corner spline arrangement is also provided between adjacent trim covers which spline extends vertically and defines a closed corner, right-angled corner between the interconnected trim covers.

Abstract: A ceiling panel clip with improved characteristics includes a torsion spring retaining loop that has a free end captured beneath a frame member of the ceiling panel. The retaining loop at one end thereof is integral with a base portion of the clip and the free end extends downwardly to the base portion. The base portion and retaining loop preferably cooperate to capture a coiled portion of a torsion spring used to suspend the ceiling panel. Preferably, securing legs of the torsion spring are biased inwardly to allow the coiled portion to be inserted on the retaining loop. Release of the securing legs captures the coiled portion on the clip.

Abstract: A roll-formed grid runner comprising a sheet metal strip folded into an upper hollow single wall reinforcing bulb, a double wall web below the bulb, a channel extending laterally from both sides of a lower end of the web to a bend and upwardly from the bend to a panel supporting elevation, the bend on each side of the web existing at a longitudinally extending score line where a thickness of the strip is locally reduced.

Abstract: The connection between two partitions of offices is assured by a post of angle and a spacer. The section of the post of angle contains a circular part and a neighboring part in the shape of dovetail. The spacer is a profile, a section of which corresponds to a truncated triangle. The base and the extremities of the sides of the spacer contact the circular part of the post of angle. This contact assures of one part the alignment of both profiles and on the other hand a finish of joint whatever is the angle between partitions. The fixation of an element of partition such as one profile (22) or a facing in the U profile is assured by an intermediate profile snapped up at the bottom of U of the U profile. The fixation of a profile in a U profile is realized by insertion of the extremity of the profile in the hollow of U followed by a rotation of a quarter of tour of the profile around its main axis to clamp its extremity in the U.

Abstract: A method for the production of grounded panels and to a panel having a core made from a wood material board. The method includes provision of a wood material board, application of a grounding in the form of a synthetic resin layer to at least one topside of the wood material board, application of a coating to an underside, lying opposite the topside of the wood material board, of the wood material board, pressing of the layer build-up consisting of the wood material board, grounding and coating under the influence of pressure and, if appropriate, temperature, division of the grounded and coated wood material board into individual panels, cutting machining of side faces of the panels for the incorporation of connection and locking means, and transport-safe packaging of the grounded panels.

Abstract: In casting concrete retaining wall blocks, a plurality of mold inserts form a passage between top and bottom surfaces of the block, a recess in the block top between the passage and the back of the block and a recess in the bottom of the block between the passage and the back of the block. The recesses and the passage are formed by a plurality of mold inserts. When the blocks are used in a retaining wall, geogrid fabric passes from the rear of the wall through one of the recesses in a block, through the passage in the block and through the other recess in the block into backfill for stabilizing the wall. The recesses and passage are designed so that any concrete flashing formed between abutting mold inserts is not contacted by the geogrid fabric.

Abstract: The present invention relates to a shear reinforcement material of a reinforced concrete structure, which is installed in a reinforced concrete structure to increase resistance against shear failure. The truss-type shear reinforcement material having double anchorage functions at both top and bottom thereof is configured by installing double anchor heads on the top and the bottom of a truss (20), which is formed by connecting an upper member (24) with a lower member (26) through connection members (21) such as vertical members (22) or inclined members (23).

Abstract: A wind turbine has a nacelle mounted atop a tower, with a support system configured around a base portion of the tower. The support system includes a plurality of support fins spaced radially around the base portion. Each of the support fins has a continuous header member secured to the tower and a continuous face member extending radially outward and downward from the header member towards ground. The support fins include a web extending between the header member and face member. The support fins extend from the tower with a length and at an acute extension angle relative to a longitudinal axis of the tower so as to provide vertical and lateral support around the circumference of the tower.

Abstract: A wind turbine tower includes a lattice tower structure having a plurality of vertically oriented columns and cross-brace members. An adapter is molded onto a top of the lattice tower structure such that top portions of the columns are embedded into the adapter. The adapter may be a concrete member molded onto the lattice tower structure.

Abstract: A truss hub with a circular outer shape, that connects to trusses that extend radially away from the truss hub in different directions.

Abstract: The present invention relates to a concealed, centerline load-bearing and adjustable connector which binds a plurality of structural members together on one or more axes to create a joint which is sturdy for construction applications and the like. The present invention is configured to withstand the variables associated with timber materials, and other like structural members, such as shrinkage and timber twisting, which can occur after the joint is in place. In this way, the present invention provides a concealed, centerline load-bearing and adjustable connector that is easier to install, can be assembled on or offsite, provides a secure joint which is as good or better than the mortise-and-tenon joints of the past, and is adjustable once in place.

Abstract: Method for constructing an elevator, more particularly an elevator that is used during the construction-time of the building, in which method the range of movement in the elevator hoistway of the elevator car of the elevator is changed in steps to extend higher in the elevator hoistway with stepped lifts of the supporting platform of the elevator car, and in which method the supporting platform is lifted higher in the elevator hoistway with hoisting means, and the support force needed for the lift is taken from the building via a support structure. In the method the supporting platform is moved in the longitudinal direction of the elevator hoistway while being supported on a support structure that is supported immovably on the building such that the point for taking support from the support structure moves upwards in connection with the lifting of the supporting platform.

Abstract: A bolt connection assembly is provided that is particularly suited for connecting components of a lattice structure wind tower. The assembly includes a pin component having a head and a shaft, with the shaft having a textured friction-fit outer circumferential surface. The shaft further includes a threaded internal bore. A bolt component having a threaded shaft engages within the threaded internal bore. In an assembled state of the pin component and bolt component, the threaded shaft has a free length section that extends into the threaded internal bore for increased distribution of a specified pretension of the bolt component.

Abstract: The disclosure relates to a packaging machine comprising a plurality of work stations which are operable in synchronism with one another and which define a production direction, each of said work stations including at least one movable tool member. The packaging machine is provided with a rotationally driven shaft arranged in the production direction of said packaging machine, and the shaft and each of the movable tool members of various work stations have provided between them at least one transfer mechanism for converting the movement of the shaft into the movement of the respective tool member.

Abstract: The installation comprises an infeed conveyor (7) and an outfeed conveyor (8) with, between the two, a module (5) for forming a wrapping of the tray or wrap-around type, the cleated belt conveyor (11) of which is constituted by two continuous belts (11a, 11b) which are retractable so as to allow the installation of a substitute conveying system (13) which is capable of forming a continuous slider bed between said infeed conveyor (7) and said outfeed conveyor (8). This arrangement makes it possible to provide a versatile installation which is capable of carrying out on the one hand, wrapping operations with blanks of the tray or wrap-around type and on the other hand, simply transporting batches of products, said products being, for example, placed on supporting cardboard sheets so as to convey them to the packing machine to receive a plastic film and then into the heat-shrink tunnel to complete the wrapping.

Abstract: Machine (1) for packaging articles (2) inside containers (3), wherein a conveyor (6) is provided with a longitudinally movable transporting section (7) for feeding the articles (2) in a given direction (D) and along a given conveying path (P); a robot (23), which is arranged along the conveying path (P) and controlled by operating and control means depending on detection at least of the position of each article (2) on the transporting section (7), picks up single articles (2) from the transporting section (7) and transfers each picked-up article (2) inside a container (3); the transporting section (7) is delimited transversely by two side walls (18) stabilising the position and direction of each article (2) with respect to the said transporting section (7); on the latter the articles (2) are stably seated between the side walls (18), one behind another in a row, in the conveying direction (D).

Abstract: A method of sleeving two or more packages of smoking articles is provided. The method can include feeding successive packages of smoking articles to a plurality of bundling pocket guides each configured to receive two or more packages. A first package can be placed into one of the plurality of bundling pocket guides. A second package can be placed into the one of the plurality of bundling pocket guides containing the first package such that the first and second packages are adjacent to one another within the bundling pocket guide to form a bundle of packages. Successive bundles of packages can be fed to a sleeve folding station. The bundle of packages can be moved against a blank of sleeve material into a folding pocket. The blank of sleeve material can be folded around the bundle of packages to form a sleeve around the bundle of packages.

Abstract: Described herein is a cost-effective and time-efficient method for making UV-absorbing contact lenses. In contrast to the conventional method for making UV-absorbing contact lenses which involves copolymerizing a lens forming composition including a UV-absorbing vinylic monomer, a method of the invention involves covalent attachment of a UV-absorbing compound having a second reactive functional group to a preformed contact lens having a first reactive functional group therein and/or thereon.

Abstract: A method includes coating a conductive wire with a paste comprising a first inorganic dielectric material, an organic binder, and a solvent to form a coated wire, drying the coated wire at a first drying temperature to remove at least a portion of the solvent and form a green wire, winding the green wire around a core to form a green assembly, heat treating the green assembly at a decomposing temperature above the first temperature and below a melting point of the first inorganic dielectric material to decompose the organic binder to form an intermediate assembly, and exposing the intermediate assembly to a densifying temperature that is above the decomposing temperature and substantially equal to or above the melting point of the first inorganic dielectric material to densify the dielectric material on the conductive wire.

Abstract: A method of manufacturing a liquid container having a tank chamber, first and second communication holes communicating with the tank chamber, and a flow channel communicating with the first communication hole, including welding a film to one surface of the liquid container in which openings communicating with the tank chamber and the flow channel, respectively, are formed; filing the tank chamber with a liquid from the second communication hole disposed in a vertical upper portion of the tank chamber; and delivering bubbles, which are gathered in the vertical upper portion of the tank chamber at a time of filling the tank chamber with the liquid, from the tank chamber to the flow channel through a bypass channel extending from an opening of the tank chamber to an opening of the flow channel through a non-welded portion of the film.

Abstract: A thermoforming packaging machine according to the disclosure comprises a forming station for producing packaging troughs in a bottom foil, and a filler for filling the packaging troughs with products. The filler is arranged at a transition region for conveying the packaging troughs from a first transport plane to a second transport plane. A corresponding method for filling packaging troughs with products is also provided.

Abstract: An apparatus and a method for aligning a package are proposed, wherein the apparatus comprises the following: a vacuum chamber (32) in which a vacuum is created such that a package (10), which is located inside the vacuum chamber (32), unfolds, and at least one fixing means (22) which fixes the aligned package (10).

Abstract: An apparatus and methods for producing at extremely high production speeds small pouches filled with tobacco or other granular, powdered or solid content. An endless web substrate, with or without flavor film thereon, is formed into a tubular shape with a longitudinal seam. The tube is cut to individual lengths, and a procession of tubes is crimp-closed at one end, filled and crimp-closed at the other end to complete pouch production. During production, the seams formed at the crimped ends of the pouch are parallel to one another and the longitudinal seam of the pouch is midway between the sides of the pouch and orthogonal to the seams formed at the crimped ends of the pouch.

Abstract: A muzzle shield for protecting the muzzle of an animal from the ultraviolet light of the sun. The muzzle shield includes a frustum-like structure in which the narrowest end is attached to the muzzle of the animal distal from the nose region and sides of the muzzle shield extend outward towards the nose, extending between approximately to the end of the nose to slight beyond the nose. The frustum-like shape characteristic of the muzzle shield advantageously restricts the amount of contact that the muzzle shield has with the muzzle of the animal to prevent irritation, overheating, entrapment of insects or debris, etc.

Abstract: A hollow body includes an integrated oil separator unit, a swirl generator located in a cavity of the hollow body, at least one first supply opening in the camshaft case for introducing gas that is charged with oil into the cavity, and at least one discharge opening for carrying away separated oil and for carrying away gas that has been cleaned of oil. The swirl generator also has elements that are used to variably influence the pressure prevailing at a predetermined point in the cavity.

Abstract: An air filter media construction or arrangement is disclosed. The air filter media construction or arrangement includes strips of media comprising corrugated sheets secured to facing sheets and forming inlet and outlet flutes secured to one another in a stack. Blocked stacked arrangements and slanted stacked arrangements are shown. Such stacked media is provided with molded end pieces to secure and seal opposite side edges of the media strips. Also described are serviceable filter cartridges and air cleaners including the filter cartridges. Methods of assembly and use are also provided.

Abstract: Apparatus is provided for removing oil from crankcase gases flowing from an internal combustion engine. The apparatus includes filtration particles, contained within an outer case, that collect oil particles and allow drainage of the oil into an accumulator. The apparatus includes a separation chamber which initially causes the oil to separate from the crankcase gases.

Abstract: A ceramic honeycomb structure having a large number of flow paths defined by porous cell walls; said porous cell walls being composed of cordierite crystals, mullite crystals, corundum crystals and/or spinel crystals; the percentage of the X-ray diffraction intensity of the cordierite crystals being 72% or more and less than 85%, the percentage of the X-ray diffraction intensity of the mullite crystals being 15-25%, and the percentage of the total X-ray diffraction intensity of the corundum crystals and the spinel crystals being 5% or less, per the total X-ray diffraction intensity of these crystals; said porous cell walls having a true density of 2.55-2.70 g/cm3, a mean pore diameter of 10-20 ?m, and a porosity of 50-65%; the volume of pores having diameters exceeding 50 ?m being 8-25% of the total pore volume, the volume of pores having diameters of less than 10 ?m being 16-25% of the total pore volume, and the pore diameter distribution deviation ? being 0.5 or less.

Abstract: A height of cut adjustment assembly for a robotic mower includes a height of cut drum secured to a bottom chassis of the robotic mower and having internal spiral threads, a motor cup supporting a cutting blade motor and having external spiral threads that engage the height of cut drum, and a blade shield fastened to the motor cup. The blade shield and the motor cup may be rotated to change height of cut. The blade shield and motor cup may be rotated one revolution to move the motor cup and blade shield vertically between a minimum and a maximum cutting height. Detents engage the motor cup with the drum at a plurality of different cutting heights.