The invention relates to a gearbox control device comprising an input clutch which is controlled by a clutch release fork (30) and at least two shift actuators (200, 100) which each control two forward gear shifts. The invention is characterised in that the clutch release fork control shaft (50) can be moved by one of the aforementioned actuators.

A pivoted piston for an internal combustion engine. The piston has a pivot pin (14) and an arcuate first sealing surface 12 which describes a circumferential path about the pivot pin (14) which forms a removable and replaceable skirt to the piston. The piston also includes a second arcuate sealing surface (13) which also describes a circumferential path about the pivot pin and which is connected to the first arcuate sealing surface by a piston floor (21). The second arcuate sealing surface (13) is composed of at least two arcuate sealing components (24) which are located on a bed (20) with the components being located on the bed (20) so they will have limited transverse movement on the bed (20). The components (24) have mating faces which restrict the path of combustion gases between the mating faces. The piston further includes side seals (62) which are located in grooves (63) in the side of the piston. A restraining pin (60) assists in locating the seals (62) in the seal grooves and also closes a pressure escape path for the combustion gases. The piston further includes means to allow liquid coolant to pass through the pivot shaft 14, through liquid cooling galleries in the piston and out o the pivot shaft 14.

The invention relates to a drive for a driving rod (1) for a window or door, wherein a toothed wheel (7) which is, for example manually controlled by a hand lever, is rotationally mounted in a housing (4). A driving rod (3) movable along the housing (4) and directly or indirectly interacting with the teeth of the toothed wheel (7) is associated therewith. Abutments (13) extending in a parallel position to the axis of rotation (14) of the toothed wheel (7) are provided in the housing (4) for the hand lever fixing elements. Said housing (4) comprises two housing halves (5,6) in which the toothed wheel (7) bearing is placed. A spacer (8) is arranged between the housing halves (5,6) and comprises the abutments for the hand lever fixing elements and fixing elements connectable to said housing halves (5,6). The aim of said invention is to design a drive for the driving rod drive consisting of individual parts which are easily producible at low cost and mountable without any problem. For this purpose, the housing halves consist of identical plates (5, 6), the spacer (8) is embodied in the form of an angled metal sheet section which is placed between said plates and comprises at least one vertical web (15) which extends along the axis of rotation (14) of the toothed wheel (7) and is associated with said plates (5, 6) for fixing, the spacer (8) length approximately corresponds to the space between the fixing elements, and the abutments (13) are mounted on said spacer.

The invention relates to a starter device (160) for an internal combustion engine, comprising a starter motor (140) and a switching control device for controlling the starter motor (140). The latter comprises a power switching module (165,170, 175, 180) connecting the starter motor (140) to a voltage source (130). The switching control device also comprises a control electronics system (195) used to control the power switching module (165,170, 175, 180), and an actuating device (135) used to activate the control electronics system (195). The control electronics system (195) is configured in such a way that it can be operated with a supply voltage which is less than 5V, thereby ensuring safe operation of the starter device even if the supply voltage falls off in the wake of the starting process.

The device (1) comprises a base (2), carrying a servo motor (3) and attached to the frame of a machine center. A carriage (6) with a vertical shaft (8) on top can be moved on two telescopically arranged rails (4,5) joined horizontally to the base (2). The tool holding elements (16,17) are positioned at the upper end of the shaft (8) and can be fixed with a locking unit (18). A control plate (12) is located at the second rail (5) acting in combination with a guiding roll (10) in order to facilitate a swivel motion of the tool carrier (15).

The device has a base plate (2) with socket for holding a side wall (4) and fixing means for rollers (5, 6) mounted on assembly plates (20). The socket has a further preferably iron plate (3) which is mounted fixed with the assembly plate on the base plate. The iron plate, assembly plate and base plate can have corresponding holes and grooves for screw fixing.

The assembly has a housing defining a handle (4) and accommodating a motor for actuating the output member of a power tool e.g. drill bit or jigsaw blade. A flexible sheet (8) is mounted to the surface of the handle and has a series of protrusions (10) to be engaged by the hand of a user. The protrusions retain a gaseous vibration damping material e.g. air between flexible sheet and surface of handle.

A power tool (10) is described which has several modes of operation, such as drilling and screw driving modes. A clutch is provided with various settings for adjusting the torque at which the clutch interrupts power to a spindle (18). Furthermore, a two speed gearbox (16) is provided for adjusting the speed of the spindle (18). All of these variables are controllable from a single adjustment member or collar (26) thereby reducing necessary decisions needed to be made by an operator for a particular job in hand. For instance, when an operator wants the tool (10) to operate in a screw driving mode, the gearbox (16) is automatically set to drive the spindle (18) at a low speed with the clutch being operable to interrupt drive when a torque force applied to the spindle (18) exceeds a threshold value. Furthermore, if the tool (10) is required to operate in a drilling mode, the gearbox (16) is automatically switched to drive the spindle (18) at a higher speed and the clutch is automatically rendered inoperable.

The wheel hub (10) is assembled of a brake unit comprising a set of stationary (14) and a set of movable disks (16), an outer hub (18) and a brake housing (20), forming a space (22) for the multi-disk unit (12). A coolant is moved inside the inner space (22, 36). The outer hub (18) is provided with a collar (24) at its outer contour with several openings (26) for the insertion of bolts (28). The bolts (28) are no longer accommodated partly inside the housing (20), resulting in an increase of the space available for the coolant.

The invention concerns a device (1) for manipulating tools comprising two parts, said device being of the type consisting of a frame and at least one tray forming a table, designed to receive the mold. The invention is characterized in that it comprises two horizontally arranged trays (6, 9-7, 8) one of which is arranged sliding on the frame to be mobile in translation relative to the other tray, from a close position to a remote position and inversely, so as to enable the tool to be manually opened and closed.