Abstract: An expander tool such as for use in removing tubing from barbed fittings. The tool includes a pair of handle members having a pivotal connection therebetween. A pair of channel-shaped jaw members are operatively connected to the handle members for spreading movement in a generally parallel direction when the handle members are moved toward each other. The channel-shaped jaw members are nested with the bight portions thereof being thin and flat and in generally parallel confronting relation. The legs of the channel-shaped jaw members therefore are in overlapped relation whereby the opposite side of the thin flat bight portion of one jaw member can be positioned in close proximity to a workpiece such as the flange or elbow of a barbed fitting. The thin flat bight portions of the jaw members have slots opening outwardly of the tool, the slots each having a stepped configuration for embracing different sizes of workpieces, such as different diameters of tubing and barbed fittings.

Abstract: A torque wrench including a drive heat defining a torque transfer axis and having a shank generally coaxial within and pivotally connected to a tubular handle, and coupling means including a spherical coupling member releasably interconnecting the shank and handle so as to effect pivotal movement of the handle and create an audible indication to the operator when a predetermined but selectively variable torque is applied at the torque transfer axis in either rotational direction. A tubular auxiliary handle is adapted for telescoping relation with the primary handle and enables torque multiplication.

Abstract: For screwing a threaded fastener into an internally threaded member, there is disclosed a screw driver apparatus which comprises a casing formed with a through bore to receive the threaded fastener, a tubular member formed with a supplying passageway having a front end open to the through bore for supplying the threaded fastener into the through bore, a screw driver reciprocably and rotatably received in the through bore and having a front end portion to be slidably guided by the through bore and formed with a depression for retaining the threaded fastener therein, and reciprocating means for reciprocating the screw driver with respect to the casing between a first axial position where the front end portion of the screw driver projects outwardly from the casing to force the threaded fastener to be screwed into the internally threaded member and a second axial position where the front end portion of the screw driver is positioned rearwardly of the front end portion of the supplying passageway to allow the thre

Abstract: A power tool comprises a drive shaft (16), a tool (20) for engaging a threaded bolt fastener (22) and marking means (30) for marking the threaded fastener after it has been tightened onto a compatibly threaded hole. The marking means (30) comprises a marking stylus (41, 42, 45, 48, 49) that is moved reciprocally into and out of contact with the fastener, and supply means (62, 63, 61) for supplying a predetermined quantity of liquid marking medium to the stylus for discharge therefore onto the fastener with each cycle of linear movement of the stylus.

Abstract: A novel tool extension, adaptable to hand tools of the pivotal jaw type, is provided, which comprises, a first rod pivotally connected to one handle of the tool, a connecting plate attached to the second handle of the tool, a lever arm pivotally connected at one end to the connecting plate and at the other end to a second rod, the rods being restrained for closely spaced relatively parallel movement in a plane substantially parallel to the plane defined by the tool handles. The tool handles are actuated by relative axial movement of the rods.

Abstract: Fixturing for repair of automobile radiators is disclosed, usable for recoring of either brass or plastic tank radiators, including clamping gates providing parallel rails adjustably spaced to receive the radiator header with an air cylinder exerting clamping pressure on the tank top. The radiator sits atop the rails of a first set of clamping gates when resoldering conventional tanks and is recessed between the rails of a second set of clamping gates which are alternatively installed for decrimping and crimping of the header tabs of plastic tank radiators. Decrimping and crimping hand tools of special configuration are also disclosed, cooperating with the rails during use.

Abstract: A pliers for handling disks and other flat and thin objects. The pliers are substantially comprised of jaws (4) provided with claws (5), biased against each other by an adjustable tension spring (3), arranged between the arms (1). The jaws (4) are made into a single part, of flexible material, and folded in two portions to form a hinge (6) acting as a penetration limiter, distinct from that (2) of the arms (1). The claws (5) are fixed on the jaws (4) by a turned down edge (10) thicker than the protuberance (12) located at the junction of the arms (1) with the jaws (4). The ends of the claws (5) are tapered and offset so as to facilitate the insertion of the jaws (4) between the object and the handling of the object with the pliers.

Abstract: An input shaft and a main shaft which transmits torque from the input shaft to torque amplifying means are separately provided and a horseshoe-shaped elastic member is deformed according to the applied torque, thereby the overloaded transmission of torque to the main axis is prevented and a rough amount of transmitted torque is indicated at a surface of the wrench.

Abstract: An adjustable crimping die for use in combination with a clipper apparatus includes a wedge adjustment block adjustable in response to an adjustment screw to thereby position the die member with respect to the cooperative punch and control the tightness of a U-shaped clip about gathered material.

Abstract: A torque limiting power screwdriver includes a housing in which there is supported for rotation and axial displacement a screwdriver spindle. A transmission transmits power from a motor to the screwdriver spindle. A torque overload coupling and a separating coupling are interposed in the transmission, being operative for interrupting the transmission of torque from the motor to the screwdriver spindle. The separating coupling is coupled and uncoupled in response to axial displacement of the screwdriver spindle between its coupling and uncoupling positions. The axial movement of the spindle is accomplished by a trigger movably mounted on the housing and connected by a Bowden cable or a lever transmission to the spindle. The spindle is connected by an axially movable coupling with an output member, especially with a bevel gear transmission accommodated in an angular head housing portion. A switching trigger is used to energize and de-energize the motor.

Abstract: A chopping hand tool, including a slidable hammer along a handle of the tool for striking against a hammer stop mounted on the handle, so to transmit the hammer striking force to a toothed edge of a blade affixed to one end of the handle, so that the toothed edge is used to chip materials against which it is applied.

Abstract: A torque producing tool of compact design may have its driven output member displaced from the tool body through use of an easily attachable extension drive. By providing a plurality of different extension drives the maximum output torque of the tool may be varied in stepwise fashion.

Abstract: In combination with its own bit, or with a screwdriver, a barrel made of a stiffly flexible material, preferably a specified plastic, slides over the bit or screwdriver shaft, and provides at one end a gripping head for screw heads, and at the other a quick-lock clutch operated by a twist of a rotary collar. The gripping head can not only grip surely a screw head placed in it, as for starting, but can locate by feel an installed screw in a hidden recess difficult of access, and facilitate one-handed withdrawal of the screw, with sure retention of the head. The device can be made as a screwstarter, with a set of sizes and bits for all sizes and type of screws, or as barrels adaptable to the full range of available and existing screwdrivers. A split-barrel variant can be assembled with the use of threaded collars, one of which is the clutch collar and the other the gripping head, over the shaft of a screwdriver which has a widened blade, square shaft, or for some other reason requires a special adaptation.

Abstract: An impact wrench for removing and tightening nuts, including wheel lug nuts, which includes a lug bar or shaft provided with a shaped drive at one end to receive a socket of appropriate size, an impact frame rotatably mounted on the lug bar by means of a collar and pinned inside a handling ring for manipulating the impact wrench, and an impact arm secured to the lug bar at a point intermediate the ends of the collar and in the rotational path of a pair of impact bars attached to the impact frame to facilitate impact between the impact bars and the impact arm responsive to rotational force applied to the ring.

Abstract: A socket wrench device is provided as including a wrench handle having a drive head which circumferentially engages a socket having a plurality of circumferentially spaced side openings facilitating use in a minimum amount of vertical space. In an advantageous form of the invention, the drive head of the wrench handle includes a ratchet drive mechanism having a plurality of pawl fingers which engage corresponding side openings in the socket.

Abstract: A wrench head having an input gear meshed with an output gear, and a universal joint carried on the output gear such that a nut connected to the output gear can be turned within a range of selected angles with respect to the axis of rotation of the input gear.A ratchet wrench having a ratchet gear and a universal joint supporting a stud, attached to the ratchet gear is also disclosed.

Abstract: A service tool is provided for a fiber optic connection system in which a pair of facing fiber optic connector ends are collinearly aligned by a tubular alignment insert therearound, all within an outer concentric tubular connection sleeve. After withdrawal of one of the connectors, the tool serves as an extraction tool for removing the alignment insert around the connector end within the outer concentric sleeve. The tool has another side serving as a test gauge for determining the presence or absence of the alignment insert around the end of the fiber optic connector within the outer concentric connection sleeve without looking into the sleeve.

Abstract: A hand tool for pulling tent stakes, trap stakes, or driven anchors comprising a claw foot having a standing bar, and a sliding bar with a handle, wherein the standing bar and the sliding bar are slideably engaged to each other by a slide impact lug affixed to the standing bar and a running impact lug affixed to the sliding bar. The tool, a stake puller, being lightweight and operable with one hand, uses the sliding hammer principle.

Abstract: An improved gear wrench which is particularly adapted for tightening or loosening nuts or bolts in tight places. The gear wrench comprises an elongated first member which carries at one of its ends a housing which rotatably receives a gear wheel therein. A tubular member is secured along its length to the first member and rotatably receives an elongated shaft which includes one end portion which extends beyond the corresponding end portion of the tubular member and is disposed proximate the gear wheel carried by the housing. A pinion gear is secured to this end portion of the shaft and includes teeth which mesh with the teeth of the gear wheel such that upon rotation of the shaft, a corresponding rotation is imparted to the gear wheel and a stud carried thereon which is adapted for receiving a suitable conventional socket. The teeth on the gear wheel and the surface of the gear wheel serve to define a recess which receives the end portion of the socket which is assembled on the stud.

Abstract: An adjusting tool for performing precision adjustment of rotary elements disposed in inaccessible areas including an elongated barrel. A driver is rotatably mounted on one end of the barrel and has a coupling configuration for mating with the rotary element to be adjusted. An elongated shaft is journalled within the barrel and a transmission connects the same to the driver. A knob is disposed at the opposite end of the barrel and is connected to the shaft to rotate the same. A scale is carried by the actuator for movement therewith and an index device is disposed in proximity to the scale and is mounted on the tool for movement relative to the scale. A brake is employed for selectively holding the index device against movement on the tool.