Abstract:
In a pair of pliers for stripping the insulation from the ends of electrical conductors, comprising i.a. a two-members aggregate for carrying and longitudinally moving a pair of cutting and stripping jaws accommodate with a pair of clamping jaws, comprises a first member of said the two cutting and stripping jaws and a longitudinal rod part at the forward end of which is a plastics joint means in the shape of a forwardly open arc provided which is resilient at least along a portion of its circumference and carries both cutting and stripping jaws.The second member embodies a resiliently biassed driving lever which is with the aid of pivot means pivotally attached to a handle of the tool. Each of the two members inclusive of their mounting means is integrally made of plastics material so as to embody one single component.
Abstract:
A pliers-type tool with two handles has a parallel mechanism carrying two carrier members for working jaws. The mechanism comprises two cross-wise arranged guide lever means and one of the carrier members or one of the guide lever means is merged with one of the handles to a rigid tool body. A resilient member may be interposed, also in tools not having a parallel mechanism, between a link connecting the two handles and a counter-element in order to compensate for inaccuracies and/or to enable an extra push at the end of a closing movement of the handles.
Abstract:
A tool for crimping cable shoe terminals having an affixing part and a contact part onto the ends of electrical conductors has a pair of jaws provided with at least one pair of co-operating crimping dies and hinged together by a pivot pin. On the same pivot pin is mounted a rocker arm carrying for each pair of crimping dies a chamber accommodating the contact part of a terminal to be crimped. The rocker arm is affected by a position-controlling force such as friction at the location of mounting, and by suitably located dog means so that it makes a move, after the crimping operation has been terminated, by which the terminal, now crimped on a conductor, is lifted from the crimping die so that it readily can be removed from the tool.
Abstract:
A tool particularly suitable for use in crimping includes two arm members and a pair of working jaws each supported on a different one of the arm members. A drive arrangement such as a pair of handles is connected to the arm members for moving the arm members relative to each other between open and closed positions. The drive arrangement, arm members and working jaws provide two force transmitting paths each extending between a different point on the drive arrangement where an external operating force is applied, and a different one of the working jaws whereat the operating force is transferred to an article to be worked on by the tool. At least one pivotal connection is provided, including at least one pivot member and a bearing member for engaging the pivot member. The bearing member is arranged to deform resiliently when the operating force is transferred to the bearing member by the pivot member. Preferably, at least one of the arm members is formed by two spaced apart, parallel arm plates, and a working jaw extends into the region between the plates. The plates and working jaw between them have at least two sets of aligned openings, and a retaining member which may be of resilient material is closely fitted in each set of openings to fix the working jaw to the arm member plates.
Abstract:
A stripping tool of a kind where first a local incision is made in the insulation layer or layers of an electrical conductor and then is extended along the entire cross-sectional periphery by relative rotation of the tool and of the conductor, is provided with a slider in a housing or tool body, which slider may be activated by an eccentric cam member so as to press the conductor against a cutting means. The cam member may be embodied by an annulus mounted on a bearing which has a central opening through which the user may slip on one finger of his hand in order to execute said rotation, and the cutting means may be defined by an exchangeable cassette provided with cutting blades settable by setting screws.
Abstract:
A locator device for a tool with crimping dies for cable shoes has at least one track for accommodating the contact portion of the cable shoe, a stationary stop at the end of the track and a movable stop at a selected location along the track. For treating cable shoes with longer contact portions, the movable stop is lifted from the track so that the stationary stop is operative, and when treating cable shoes with shorter contact portions the movable stop is put in place. The device is preferably made as a readily mountable accessory to the crimping tool.
Abstract:
A hand-operated tool of the pliers type includes a body member in which a rectilinear guiding track for a jaw carrier is provided. One stationary jaw for treating a working piece is arranged at one end of the guiding track and another jaw on the jaw carrier. A handle is pivoted to the body member laterally of the guiding track and is provided with faces for engagement with co-operating faces on the jaw carrier so as to press the jaw carrier and the jaw mounted on it towards the stationary jaw when the handle is activated.
Abstract:
Apparatus for controlling the supply of electric power to a power consuming appliance (e.g. an electric soldering iron) in dependence on a parameter (e.g. the temperature of the soldering iron) comprises electric circuit means including a thyristor connected in series with the appliance across an AC supply, a first voltage divider including a variable resistor for defining a set point for said parameter, a second voltage divider including a sensor for said parameter and adapted to provide an analogue electrical parameter, and a first and a second transistor having their bases connected respectively to tappings of said voltage dividers defined respectively by a terminal of said variable resistor and said sensor, the emitter of said second transistor being connected to the gate of said thyristor.
Abstract:
In a pliers-type tool with a fixed jaw carrier (13A) and a movable jaw carrier (13B) arranged on a pivotable rocker (14) which is connected with an at least to a limited degree resiliently bendable bracket (15). The rocker (14) is with the aid of a pivot pin (14A) pivotally attached to a longitudinal tool body (11), the pivot pin (14A) passing through the rocker (14) in a hole which is larger than the diameter of the pivot pin (14A), and is anchored on one end of a short link (17), the other end of which link is attached to the said bracket (17).Thus work pieces, having a size within certain limits, may be precisely treated.
Abstract:
A tool for removing insulation from electrical conductors includes an apparatus body, a knife head defining a separate unit and attachable to the body, and a support for a treated conductor located at one end of the head. At least one insulation-cutting knife is arranged in the support and a holder stirrup is provided to press the cable against the support and the knife or knives.