Abstract: The method for pouring concrete around a window frame begins by spraying a flat surface with a release, followed by positioning window assemblies on the flat surface. The window assemblies include at least a frame, and also possibly a sash, glazing and removable bracing. The window assemblies are secured to the flat surface and then concrete is poured around the window assembly to form a wall. Once the concrete cures around the frame, the bracing is removed, and the wall is tilted/lifted to a vertical position.

Abstract: The disclosure discloses an anti-misoperation combined dining chair for children. The dining chair comprises a seat and a tabletop which are arranged in sequence on a supporting component. The support component comprises four No. 1 supporting tubes and No. 2 supporting tubes. One end of each of the four No. 1 supporting tubes is respectively inserted into one of four corners of the seat, and the other end of each of the four No. 1 supporting tubes is internally provided with a corresponding No. 2 supporting tube in an inserting manner respectively. The tabletop is arranged at peripheries of the No. 2 supporting tubes in a sleeved manner and is connected with the No. 1 supporting tubes and the No. 2 supporting tubes through locking mechanisms respectively.

Abstract: A mine roof support comprises two or more frusto-conical, tubular sections, the sections each flared outwardly from an upper end to a lower end thereof, a skirt portion of a section being received and secured within a neck portion of a section below in a frictional fit to define a continuous, interior volume of the mine roof support. A continuous, solid, compressible, load-bearing material is located within the interior volume. An uppermost section is closed at an upper end thereof, and a lowermost section is closed at a lower end thereof. Methods of installing a mine roof support and a pre-installation assembly for a mine roof support are also disclosed.

Abstract: A load bearing support includes a cylindrical drum. A top portion, a bottom portion, a tapered cylindrical sidewall extends between the top and bottom portions. A core member extends between the top and bottom portions, and a load-bearing material is disposed between the sidewall and the core member. An opening extends through the top portion of the drum to receive load-bearing material. Each of the top portion and the bottom portions has a reinforcing chime. The core member includes a lateral transfer zone defined at one or more points along a vertical axis of the core member. The lateral transfer zone distributes an axial load on the drum to the cylindrical sidewall. The cylindrical sidewall provides a radial expansion area for compression of the core member and the load-bearing material.

Abstract: An anchoring system using hollow piles connected with a cap, the hollow piles open at the top and closed at the bottom. A skirt extends from the cap. In use, the anchoring system is lowered to an ocean floor and a suction element removes water and ocean floor material from under the cap to lower the anchoring system into the ocean floor. Flexible walls at closed ends of the hollow piles may provide pressure differentials separating the undersea pressure to which the interiors of the hollow piles are exposed from air chambers at the closed ends of the piles at substantially lower pressures.

Abstract: A longitudinally yieldable support for underground roof support includes a first support section with a first elongate outer shell filled with a solid compressible filler material and a second support section filled with a second solid compressible filler material with a second elongate outer shell extending above the first elongate outer shell. The second support section has density that is greater than a density of the first solid compressible filler material. A pair of attachment members are coupled to the second elongate outer shell and are configured for lifting the second elongate outer shell relative to the first elongate outer shell and for securing the second elongate outer shell relative to the first elongate outer shell once lifted.

Abstract: A support for use in mines and other underground workings is provided comprising a flexible inflatable bag configured for receiving a pumpable load-bearing material. A reinforcing material is provided for supporting the bag when the bag is filled with the load-bearing material. The reinforcing material can include reinforcing plates, rings, bands or barrels positioned about the outer periphery of the bag. Alternatively, the support can be formed from a plurality of stackable barrels that are filled with load-bearing material but without the inflatable bag. The barrels can include internal reinforcing or cladding material at spaced locations along the barrels to define controlled deflection zones. According to another design, the support can be designed to be extensible. The support is inexpensive to transport, can be erected on-site and has a reinforced structure with residual yield strength. A method for supporting a mine or other underground workings is disclosed.

Abstract: A multi-section pulling rod structure, comprising: a retractable pulling rod, a positioning piece, and a plug set. The retractable pulling rod includes a first socket, a second socket, and at least a third socket, sleeved and fixed onto each other through their ends of small diameters, with their bottom ends provided respectively with a first plug, a second plug, and at least a third plug. Positioning piece is disposed inside second socket, and a plurality of positioning holes are provided on positioning piece. A press rod controls action of first plug, and at the same time brings second plug and third plug into action, so as to make steel beads on each plug to position in or detach from holes of each socket, and control steel bead of second plug to position in one of selected positioning holes on positioning piece, hereby reaching the extended height with minute adjustments.

Abstract: A system and method for elevating a construction implement relative to a surface under construction includes erecting a support post having a generally hollow cavity on the surface under construction, such as a dam. A quantity of granular material is then dumped into the hollow cavity of the support post. The support post and, specifically, the construction implement, is then jacked to a desired height relative to the surface. A portion of the granular material is then permitted to disperse through and beneath the support post thereby creating a higher support structure on which the support post may then rest. This process may be repeated as the construction progresses and the surface is gradually raised.

Abstract: A brace for securing concrete form members to a casting surface. First and second leg members are spaced to form an angle. A bridging member extends between opposing ends of the leg members and a strut extends between the joined ends of the leg members and the bridging member. The bridging member and strut form a truss, together with raised ribs along the legs and bridging member. The brace may be molded from plastic as a one-piece structure.

Abstract: A mine prop is comprised of an elongate tube having a slenderness ratio that would generally allow buckling or kneeling of the elongate tube when exposed to a sufficient axial force. A plurality of elongate support members having a length less than the elongate tube are attached to the tube to prevent buckling or kneeling of the elongate tube along the portion of the tube to which the elongate support members are attached. The portions of the tube that are unsupported by the elongate support members define one or more yieldable zones proximate at least one end of the tube. A compressible filler material is disposed within at least portion of the tube to support yielding in the yieldable zone.

Abstract: A water trough support apparatus for supporting a water trough on a flight of stairs, in particular. The water trough support apparatus includes an adjustable leg assembly; and also includes a platform support member being adjustably mounted upon the leg assembly; and further includes a platform being securely mounted upon the platform support member.

Abstract: A mine roof support designed to extend vertically in a mine passageway. The support includes a containment structure having at least two telescoping containment members freely telescopically movable relative to one another, and a filler material introducible into the containment structure to form a column of material extending vertically in the passageway. Each containment member defines an interior space for receiving the filler material. The material is hardenable inside the containment structure to form a yieldable column whereby in the event of a mine convergence, the yieldable material yields while providing continued support and the telescoping containment members move freely relative to one another to permit such yielding without damage to the containment structure. A method of installing such a roof support is also disclosed.