Abstract: A device, for rotationally driving an element, including a rotationally-driven member at a front of the device and engageable with, to transmit rotational drive to, the element. A formation is shaped to contact, to transmit a reaction torque to, an attachment. A rearward-facing portion is at the rear, or rearward, of the formation. An arrangement engages, to act between, the rearward-facing portion and the attachment to rearwardly urge the attachment.

Abstract: A fire hydrant valve removal tool has a torque multiplier at the top end, a torque stabilizing bushing which keeps the transmission of torque straight from the top of the hydrant above ground to the valve in the bottom of the hydrant underground, a hydrant mounting adapter which at the lower end matches the flanges and holes of the hydrant so that the valve removal too may be bolted directly to the hydrant for stability, a drive which fits over the hydrant stem all the way down to the valve, and improved valve keys having a conical internal section allowing easy fitting over the hydrant stem. In addition the present invention teaches a rescue key which is designed to easily slide down into the valve body itself and apply torque to the guides/blades of the valve itself.

Abstract: The invention is a dual-drive, self-ratcheting multiple input ports mechanism, that converts oscillatory motion applied to its input, to unidirectional axial rotation motion at its output and is able to be switched to produce solely clockwise rotation at its output, regardless of the direction of rotation applied to the input and is able to be switched to produce solely counterclockwise rotation at its output, regardless of the direction of rotation applied to the input and is provided with a detachable input handle, that can be coupled to said multiple input ports.

Abstract: This invention relates to a fastener driving device including a variable ratio gear mechanism that enables the ratio of the rotation of the handle to the rotation of a driving bit extending from the handle to be varied to allow the bit to rotate at different speeds from the handle. The device includes a gear mechanism disposed within a housing for the device that includes a locking member. The locking member can be engaged with the gear mechanism to lock the gear mechanism in a configuration for a 1:1 gear ratio. The locking member can be moved with regard to the gear mechanism to provide an increased gear ratio for the gear mechanism when desired.

Abstract: A ratchet driving tool includes a driving shank secured to a base supporting element and having two non-circular engaging segments, a casing engaged onto the driving shank and the engaging segments and having a groove and a slot for engaging with engaging elements, two gears engaged onto the casing and around the engaging elements for allowing the engaging elements to be engaged between the gears and the engaging segments and for determining a driving direction of the driving shank by the casing and the gears, a housing is attached to the base supporting element, and a control ferrule is engaged with the one of the gears for rotating the gears and the driving shank with the engaging elements.

Abstract: A torque limiting driver with a toothed belt driven use indicator, having a body with a shaft and tool at one end and a counter or indicator at the other end, is disclosed. The indicator is driven by a drive shaft gear and a toothed belt corresponding to movement of the tool. The indicator provides at least one visual cue which corresponds to a predetermined amount of use. Alignment of the at least one visual cue with a sight or mark may be used to estimate or determine usage.

Abstract: This invention relates to a fastener driving device including a variable ratio gear mechanism that enables the ratio of the rotation of the handle to the rotation of a driving bit extending from the handle to be varied to allow the bit to rotate at different speeds from the handle. The device includes a gear mechanism disposed within a housing for the device that includes a locking member. The locking member can be engaged with the gear mechanism to lock the gear mechanism in a configuration for a 1:1 gear ratio. The locking member can be moved with regard to the gear mechanism to provide an increased gear ratio for the gear mechanism when desired.

Abstract: A torque multiplier includes a main body, a torque input shaft, at least one torque sensor, an angle sensor, and an information transmission circuit. The main body contains therein at least one gear train. The gear train has upper and lower ends respectively forming a torque input port and a torque output shaft. The torque output shaft is coupleable with a tool piece, such as a socket. The torque input shaft has an end fit into the torque input port and an opposite end coupleable with a torque device, such as a hand tool, an electrical tool, or a pneumatic tool. The torque device applies a torque input to the torque input shaft that in turn rotates the gear train to provide a multiplied torque output to the torque output shaft. The torque sensor is mounted to a surface of the torque output shaft of the gear train of the main body to detect the torque value of the torque output shaft and provide a torque value signal.

Abstract: This invention relates to a fastener driving device including a variable ratio gear mechanism that enables the ratio of the rotation of the handle to the rotation of a driving bit extending from the handle to be varied to allow the bit to rotate at different speeds from the handle. The device includes a gear mechanism disposed within a housing for the device that includes a locking member. The locking member can be engaged with the gear mechanism to lock the gear mechanism in a configuration for a 1:1 gear ratio. The locking member can be moved with regard to the gear mechanism to provide an increased gear ratio for the gear mechanism when desired.

Abstract: This invention relates to a fastener driving device including a variable ratio gear mechanism that enables the ratio of the rotation of the handle to the rotation of a driving bit extending from the handle to be varied to allow the bit to rotate at different speeds from the handle. The device includes a gear mechanism disposed within a housing for the device that includes a locking member. The locking member can be engaged with the gear mechanism to lock the gear mechanism in a configuration for a 1:1 gear ratio. The locking member can be moved with regard to the gear mechanism to provide an increased gear ratio for the gear mechanism when desired.

Abstract: A torque control wrench for both a left-hand thread and a right-hand thread is disclosed. The torque control wrench includes a wrench unit having a transmission unit, a movable shaft engaged with the transmission unit, for rotating the transmission unit with external force, and a socket for receiving rotational force at a rotation speed changed by the transmission unit and tightening or loosening a bolt with the received rotational force, a handle for generating the rotational force with which the socket tightens or loosens the bolt, and a torque controller between the wrench unit and the handle, for controlling a torque applied from the handle to the socket, including a clutch for rotating along with rotation of the handle and thus rotating the movable shaft and, if a torque equal to or greater than a preset torque value is applied, rotating idly, and a clutch torque controller for controlling the torque applied from the handle to the clutch.

Abstract: A multi-wrench gear head apparatus for adjusting tie-rod assemblies of dissimilar size. Such an apparatus employs a plurality of driven wrench (socket) portions, which can be provided to engage and adjust tie-rods of different and particular sizes. The wrench portions share a common gear train, such that multiple wrench portions may be driven by a single drive means.

Abstract: This invention relates to a fastener driving device including a variable ratio gear mechanism that enables the ratio of the rotation of the handle to the rotation of a driving bit extending from the handle to be varied to allow the bit to rotate at different speeds from the handle. The device includes a gear mechanism disposed within a housing for the device that includes a locking member and a biasing member. The biasing member urges the locking member into engagement with the gear mechanism to lock the gear mechanism in a configuration for a 1:1 gear ratio. A selector switch is secured to the device over the gear mechanism and is operable to move the locking member into and out of engagement with the planetary gears against the bias of the biasing member to provide an increased gear ratio for the gear mechanism when desired.

Abstract: This invention relates to a fastener driving device including a variable ratio gear mechanism that enables the ratio of the rotation of the handle to the rotation of a driving bit extending from the handle to be varied to allow the bit to rotate at different speeds from the handle. The device includes a gear mechanism disposed within a housing for the device that includes a locking member and a biasing member. The biasing member urges the locking member into engagement with the gear mechanism to lock the gear mechanism in a configuration for a 1:1 gear ratio. A selector switch is secured to the device over the gear mechanism and is operable to move the locking member into and out of engagement with the planetary gears against the bias of the biasing member to provide an increased gear ratio for the gear mechanism when desired.

Abstract: This invention relates to a fastener driving device including a variable ratio gear mechanism that enables the ratio of the rotation of the handle to the rotation of a driving bit extending from the handle to be varied to allow the bit to rotate at different speeds from the handle. The device includes a gear mechanism disposed within a housing for the device that includes a locking member. The locking member can be engaged with the gear mechanism to lock the gear mechanism in a configuration for a 1:1 gear ratio. The locking member can be moved with regard to the gear mechanism to provide an increased gear ratio for the gear mechanism when desired.

Abstract: The torque wrench with quick release gear set is a system having a rotary actuator drive unit, which is attachable to a planetary drive gear set by a quick-release cylindrical adapter and collar so as to provide quick interchangeability of gear sets without the use of tools. The rotary actuator actuates the planetary gear set by means of a drive shaft connection through the quick-release cylindrical adaptor to engage a corresponding input gear drive shaft. The rotary actuator may have a pistol grip handle that rotates 360° to provide a user with an ergonomically friendly tool. The planetary gear set contains axial thrust bearings between each planet carrier to reduce friction and increase stability. The planet carriers are made of single piece construction to provide increased gear set durability. Precision radial bearings keep the planetary carriers and annulus concentric.

Abstract: An adjustable mechanical screwdriver, having a receiving housing, gear housing and a deflection bevel gear. A small structural size is achieved because the driveshaft protrudes with a bearing shoulder at the drive bevel gear in a direction of the bearing shaft, which is inserted into and rotatably seated in a bearing bore of the bearing shaft. The gear housing having the deflection bevel gear and the power take-off shaft with the power take-off bevel gear is pivotable on the bearing shaft. The receiving housing receives the bearing shaft so that it cannot be rotated.

Abstract: Ratchet wrenches are provided that allow for drive on both the forward and return strokes of the ratchet handle. A combination ring gear, sun gear and planetary gear system is used in combination with a drive pawl arrangement to achieve power drive in both directions of operation, regardless of whether a tightening or loosening operation is desired. Accelerated speed of operation is attained upon the return stroke as a function of gear sizing. In other embodiments, the planetary gear system is replaced with an intermediate gear assembly external to any interengaging both a drive and driven gear. In other embodiments, the planetary gear system is replaced with an intermediate gear assembly external to and interengaging both a drive and driven gear.

Abstract: An extension rod includes a polygonal recess in a first end thereof and a polygonal connection end on a second end of the rod. An axial recess is defined in the second end of the rod and communicates with an inclined passage and a receiving hole in the connection end, a bead is partially received in the receiving hole. A spring is received in the axial recess and biases an end of a pull pin which is received in the axial recess. A collar is movably mounted to the rod and has a connection pin connected thereto which is inserted in the inclined passage and engaged with an engaging notch defined in the pull pin. The pull pin is pulled toward the second end of the rod to receive the bead in a receiving recess in the pull pin to quickly release the socket.

Abstract: A fastener with a reduced gear affect. The fastener of the present invention comprises a handle assembly having an end and an opening wherein a shaft assembly is positioned within the opening and extending from the opening. The fastener further comprises a switch assembly positioned between the handle assembly and the shaft assembly wherein the switch assembly reciprocates between a locked position and an unlocked position to control a ratio of revolutions between the handle assembly and the shaft assembly. A method of fastening comprising connecting a shaft assembly to a handle assembly and moving a switching assembly, connected to the handle assembly, to an unlocked position. Next, a gear assembly is connected to the switch assembly which engages the gear assembly to the handle assembly to increase a ratio of revolutions of the shaft assembly as compared to the handle assembly.

Abstract: An open-end ratchet wrench includes a housing defining a handle and a head with an open mouth for receiving first and second elements of a work piece therein. A fixed jaw member on the wrench engages the first element and a moving jaw member engages the second element of the work piece. A squeeze lever is operable to rotate the moving jaw member about a center axis of rotation selectively in either a clockwise or counterclockwise movement, to thereby tighten or loosen the second element relative to the first element. An engagement assembly operates the moving jaw member between an operable position in engagement with the work piece and a retracted position, wherein the jaw member moves away from the center axis of rotation to back off and release from operative engagement with the second element, thereby allowing removal of the wrench from the work piece.

Abstract: A hand operated device and method for assisting a user in driving the device's shaft to impart driving force to a fastener more than conventionally accomplished in a fixed period of time. The device has a first member and a second member gripped with the user's first hand, while a handle of the shaft is held with the user's second hand. The user then turns the second member in a first direction, while still gripping the first member, so as to rotate the shaft. Next, the user releases grip on the second member while rotating the first member in a second direction, freely, without the first member ever rotationally engaging the shaft. Simultaneously, the user grips and rotates the handle in the first direction so as to continue to rotate the shaft. The user then repeats the aforementioned steps to drive the shaft as desired so that the first member never rotationally engages the shaft.

Abstract: A variable speed ratchet wrench comprising a main handle portion with an opening for receiving a planetary gear mechanism, a planetary gear mechanism with a locking device attached to an output shaft for driving wrench fittings, and a planetary gear housing cover. The planetary gear housing cover comprises an attached secondary handle that allows the planetary gears to revolve relative to the sun gear in a non-locked position and prevents the planetary gears from revolving about the sun gear when locked in a locked position, thereby providing a geared speed increase in the driven speed of the output shaft. The planetary gear mechanism includes a sun gear, a first and second planetary gear, and an inner ring gear for driving the output shaft.

Abstract: Fastener gripping apparatus (10) can be used in connection with a shaft (14) having a driver portion (80) adapted to engage a bolt (3). The apparatus is used to move the bolt between an uninstalled condition, and an installed condition in a structural member (8). The apparatus can include a chassis (12) having a first end (22), a second end (24), and a passage (32) extending therebetween. The shaft can be positioned in the passage with the driver portion extending from the second end. A retainer (16) can be connected to the chassis, having a retaining end (54) adjacent the second end and moveable between a closed position and an open position. A contact surface (64) can be on said retaining end and positioned to hold the fastener in engagement with the driver portion when the retainer is in the closed position.

Abstract: A manually operated tool bit structure includes a handgrip, an operation member, and a gear shifting device fitted with the handgrip and having an actuating portion whereby a fitting ring of the operation member is fitted with the actuating portion of the gear shifting device so that the gear shifting device is rigidly connected with the handgrip while the handgrip and the gear shifting device will not detach from each other due to the effect of an operational force. In addition, the gear shifting device includes a plurality of locking lugs which are detachably received in the locking cavities defined the handgrip so that the gear shifting device can also be rotated with rotation of the handgrip.

Abstract: The torque tool comprises a torque converter including three planet carriers which encase three planetary gears. Each of the three planetary gears includes a sun gear and three planet pinions. Each of the three planet carriers has an input disc-shaped plate, directed towards an input shaft of the torque tool and an output disc-shaped plate directed towards an output shaft of the torque tool. The input and output shafts constitute the main shafts of the torque tool. Two of the three planet carriers, which are next to the input shaft, have their output disc-shaped plates extending into sun gears with which they form unitary structures. A stepped pin is centrally disposed in a needle bearing of a first sun gear adjacent the input shaft and extends through sliding bearings located in the following sun gears.

Abstract: The hand tool includes tree main parts, a support arm, a torque application arm and a socket. The socket is intended to grip into the bolt head and mediate a torque from the axle of the hand tool. The support arm forms a holding-up against a supporting base and the torque application arm is used to apply a torque. Both the support arm and the torque application arm have latching devices with respect to the axle, which locks in the same direction and implies that a torque applied by the torque application arm is maintained by action of the latching mechanism of the support arm. Furthermore, the hand tool is preferably designed with a torque enhancement.

Abstract: A bolt retaining device for a nutrunner which includes a socket having a longitudinal axis and being sized to fit the bolt, the device having an electromagnet positioned with respect to the socket to generate a magnetic field directed along the axis of the socket to hold the bolt in the socket when the field is present, and a controller connected to the electromagnet controlling the magnetic field. The bolt retaining device wherein the electromagnet is a coil co-axially mounted with respect to the socket. Each nutrunner can include a motor, a socket, and a shaft connecting the motor to the socket. One or more nutrunners can be provided on a movable frame.