Abstract: According to some implementations a bolted joint for modular blades is provided that comprises a single bolt that joins the inserts incorporated on the flange of the beam, screwing the two modules facing each other. A spacer is added to each bolt, and the bolts is then pre-tensioned by pulling, either mechanically separating the modules with a mechanical separator or thermally by applying heaters to the bolt and coolers to the spacer, or by torqueing the bolts.

Abstract: A guide assembly for aligning a workpiece on a table of a saw device includes a guide member having a first end and a second end along the longitudinal axis that is sized to span a dimension of the table. The guide member includes first and second locking mechanisms located at opposite ends of the guide member that are operable to secure the guide member to the table. The guide assembly further includes a fine adjustment mechanism incorporated into the guide member that is operable when the first and second locking mechanisms are locked. The adjustment assembly includes a side plate movably mounted to the guide member between the first and second ends, and a movement mechanism for moving the side plate relative to the guide member in a direction perpendicular to the longitudinal axis.

Abstract: The present invention discloses a manual force reduction device for reducing a force required to initiate movement of a load by a separate mechanism. The device can have an energy storage mechanism that has a compressed position and a released position, and the energy storage mechanism can be operable to store a predetermined amount of energy when it is in the compressed position. A latch can be included and be used to hold the energy storage mechanism in the compressed position. At a desired time, a latch release can release the energy storage mechanism from the compressed position such that the predetermined amount of energy is released and transferred to the load.

Abstract: The present invention discloses a rigid tie down in the field of mechanics, which addresses the problems of the existing tie downs, for example, they occupy a large space and have a low binding efficiency. The rigid tie down comprises a body, a first hook and a second hook provided on both ends of the body, and a handle connected to the body. The body has a cylindrical shape. The first hook has a first screw thereon, and the second hook has a second screw thereon. The first screw is threadedly connected with one end of the body, and the second screw is threadedly connected with the other end of the body. The direction of the threads of the first screw is reverse to that of the second screw. The rigid tie down could be operated in a convenient manner, have a high binding efficiency and occupy a small space.

Abstract: An extended length strand take up device is presented that may be used to repair damaged guy wires in the field. The invention comprises two connecting bodies connected by a single tension rod that extends continuously between the two connecting bodies. Each connecting body slides over opposite ends of the tension rod and is held in place by a stop member, such as threaded nuts screwed onto the respective ends of the tension rod. The connecting bodies may further include an inwardly-facing pull tab or tabs that can be used for pre-tensioning the guy wire. An alternative embodiment of the invention comprises a single tension rod that is fixedly anchored to the ground and several connecting bodies that are fixedly mounted along the end of the guy wire at standard increments. The tension rod runs parallel to and overlaps the end of the guy wire. The connecting bodies slide along the length of the tension rod until the required tension and length is reached.

Abstract: A lifter is disclosed using two transmission mechanisms at two sides of a housing for lifting, for example, a bed or chair, each transmission mechanism including a motor. a worm gear wheel meshed with a worm shaft as the output of the motor, a screw rod threaded into an inner thread in the hollow gear shaft of the worm gear wheel, a push block fixedly fastened to one end of the screw rod and moved with the screw rod to lift/lower the load upon rotation of the motor, and a sliding block fixedly fastened to the other end of the screw rod to guide axial displacement of the screw rod in the housing.

Abstract: The invention comprises a first and a second assembly and a screw designed for tight mating of a hose coupler of a specified diameter. Each assembly has an open-ended slot that releasably accommodates one member of the hose coupler. The screw is rotationally joined to the first and second assemblies. The first assembly and second assembly are slidingly constrained to traverse in-line along a single axial direction coinciding with the major axis of the comprising: When the coupler components are inserted, one in each open-ended slot of each assembly, and the comprising: is rotated in a first rotational direction, the coupler components are urged towards each other. When the comprising: is rotated in a second rotational direction, the open-ended slots of the assemblies are urged apart, releasing the coupler components. An auxiliary component pair allows the invention to be used with smaller couplers.

Abstract: A load binder mechanism is disclosed that has an improved arrangement for connecting the hook and shaft end portions of the load binder to the elongated axially extending tubular body. The load binder mechanism of the present invention provides an axially extending tubular body having opposed end portions, each end portion being fitted with a sleeve that has both internal and external threads. The load binder mechanism includes first and second attachment members, each providing a shaft with an externally threaded portion. The attachment member shafts have respective right and left-hand thread patterns that engage correspondingly threaded internal bore sections of the sleeves.

Abstract: A chain puller includes an elongate housing having a C-shaped channel extending between the first end and the second end of the housing. First and second chain engaging members are provided. Each has a lower portion and an upper portion. The upper portion has a chain engaging face to be inserted between links of a chain. The lower portion of the first chain engaging member is fixedly attached toward the first end of the housing, and the lower portion of the second chain engaging member is slideably engaged within the C-shaped channel toward the second end of the housing. A screw actuator has a nut fixedly attached toward the second end of the housing relative to the second chain engaging member and a screw member engaged within the nut. The first end of the screw member has an engagement face that engages the second chain engaging member. The second end has means for rotating the screw member to cause the engagement face to advance or retract.

Abstract: A turnbuckle having pivoting releasable anchors on opposing ends that when attached to different articles provides for moving one or both of the attached article toward or away from the other. The turnbuckle anchors comprise a plate incorporating housing for releasably receiving a turnbuckle eyelet and a blade extending from the base having a substantially triangular shape.

Abstract: This object is achieved by a rope tightening device for space defining nettings of a three-dimensional framework wherein rope parts of the space defining nettings are connected to the junction point members of a supporting frame to which frame the space defining netting is attached, the rope tightening device according to the present invention being characterized in that a rope receiving part (6, 6a) is arranged, by means of a tightening screw (10), on an inner surface or an outer surface of a hollow junction point member (1) or on an outer surface of a solid junction point member, respectively, wherein said rope receiving part (6, 6a) is movable in the direction of the tightening motion, and that the rope parts (3) of the space defining netting which is to be tightened are fixable within the rope receiving part (6, 6a).

Abstract: An extended length strand take up device comprises at least two tension rods disposed in parallel spaced relationship to one another, and a first connecting body slidably mounted on the tension rods for connecting the extended length strand take up device to a guy wire, and a second a first connecting body slidably mounted on the tension rods for connecting the extended length strand take up device to a ground anchor. The first and second connecting bodies each include at least two side load tubes interconnected by a central web, each side load tube being slidably disposed on a respective one of said tension rods. A stop member at each end of said tension rods retains the first and second connecting bodies on the tension rods.

Abstract: A cable adjustment tool includes an upper bar and a lower bar each having a top side, a bottom side, a first end and a second end. The first end of the upper bar has a slot extending therein for receiving a first of a pair of lug nuts. The first end of the lower bar has an indentation extending therein for receiving a second of the lug nuts. A threaded rod is attached to and extends between upper and lower bars such that the indentation and the slot are substantially aligned. The rod has a break therein. A sleeve has a threaded bore extending therethrough that has first half having a first direction of threads and a second half having a second direction of threads. The rod is threadably coupled to the sleeve. Rotation of the sleeve moves the upper and lower bars with respect to each other.

Abstract: A quick-action tensioning device (1) for cable control switches comprises a holding element (2), to which a cable (3) can be fastened in a clamping manner, and a housing (8), which is connected with the holding element (2). According to the invention, devices (9, 10) for a precise adjusting are provided between the housing (8) and the holding element (2). In particular, a nut (10) can be used for the precise adjusting, so that the cable tension can be continuously adjusted, in which case a rough adjustment as well as a precision adjustment can be carried out.

Abstract: A lock down apparatus for use with an oil well pumping unit of the walking beam type. It includes upper and lower clamps for attachment to the walking beam and to the bottom frame of the unit, respectively, and an adjustable tensioning arrangement extending between the two clamps. Part of the tensioning unit is a wire rope with plastic buttons pressed onto the rope at suitably spaced intervals. A coupler for latching to the particular button which is selected for adjustment for the distance between the walking beam and its frame is provided. Once the tensioning unit is in place, a turnbuckle is tightened to increase the tension to hold the walking beam in a lowered position, against inadvertent release of the pumping unit safety brake.

Abstract: A power drive assembly is provided for an elongated turn buckle-type cable tightener having an elongated sleeve with a driven gear wheel on it, and two loop-defining cable and anchors respectively threadedly engaged in its opposite ends. A drive unit is adapted to be coupled to the sleeve and has a motor-driven gear engageable with the driven gear for rotating the sleeve. Two right-angle reaction bars couple the frame of the drive unit to the cable anchors each reaction bar having one end slidably received in openings in the drive unit frame and another and received through the loop of the associated cable anchor.

Abstract: A clamping device adapted to receive respectively in each of two linearly spaced members the distill end of a shroud line and a deck plate mount, the members being moveable along a threaded shaft to draw the distall end of the shroud line toward the deck plate member for attachment thereto; and a guage for determining precisely the linear relationship between the distill end of the shroud line and the deck plate.

Abstract: A roller chain-connecting tool comprises a narrow elongated body containing a lengthwise-extending threaded rod journaled in and extending through both ends of the body to hexagonal bolt heads for rotating the rod. A chain hook is mounted on the threaded rod by means of an internally threaded block which moves lengthwise along the tool's body when the rod is turned. In one embodiment, a second chain hook is mounted on one end of the body and the rod is threaded in only one direction. In another embodiment, the second chain hook is mounted on another internally-threaded block and the threaded rod has approximately one half threaded in each direction from its center. The chain hooks or jaws are gently curved toward one another and are tapered so as to fit both small and large gauge roller chains, the large chains being at least twice the size of the small chains.

Abstract: A tightener for securing tire chains about industrial tires. The tightener includes a pair of block members that are threadably engaged by a draw bolt. The draw bolt includes a tool engaging surface that facilitates attachment of a tool to turn the draw bolt about its central axis and correspondingly move the block members axially toward or away from one another. A pair of non-extensible lengths of chain are connected to each block and extend outwardly to free ends that are adapted for connection to the side rail chain of an industrial tire chain. Therefore, the tightener may be mounted with the length of chain connected to the side rail chain and the blocks and draw bolt substantially centered on the tire axis. The draw bolt may then be rotated to bring the block members axially together, pulling inwardly on the side rail chains to tighten the tire chain about the tire periphery.