Abstract: A cab for accommodating the operator of a vehicle or machine, especially a traveling crane or other type of construction machinery. It comprises a seat for the operator, an operating-information display system with a monitor and display instruments in the seated operator's field of vision, and at least one optionally multiple-function operations-control device directly within his reach. The information-display system consists of a monitor with a liquid-crystal display and of a projection screen remote therefrom. The screen pivots around one axis and tilts around another axis at an angle thereto within the operator's field of vision. A source of light behind the monitor projects the displayed information onto the screen.

Abstract: A cockpit for operating vehicles and heavy equipment, especially cranes, construction equipment. It has a seat for the operator, a monitor for the controls, instruments in view of the operator, and at least one optionally multiple-function machinery control directly accessible by the seated operator. The monitor pivots and tilts around two non-parallel axes and can be directly viewed and accessed by the operator.

Abstract: A method for representing a composite image on a screen of a screen device, the image being composed of a plurality of natural and/or synthetic sub-images generated by diferent sources, is characterized in that the sub-images are composed of a line-by-line representation on the screen by (a) reading out at video rate a pluralaity of pixels, the number of which corresponds to that of the respective sub-image from said storages line by line and (b) repeating step (a) line by line. Furthermore, there is set forth a device for carrying out the method according to the invention.

Abstract: In a method of opto-electronic inspection of a two-dimensional pattern on an object, especially a printed board, a micro-inspection is carried out by subjecting line-by-line scanned picture elements in pixel-by-pixel fashion to a sequence of picture operations for inspection of dimensions and spacings, and the respective result is compared with the corresponding scanned pixel. At the same time a macro-inspection is carried out by combining the scanned pixels to frames and by respective reduction thereof to a single characteristic picture information, whereupon a comparison is again performed, but this time with the corresponding picture information of a reference picture. In this way it is possible to perform a quick and fully automatic real-time inspection of two-dimensional patterns, for instance printed boards, both for minute and hardly visible defects and for macro-defects.

Abstract: A wheel load indicator comprises a rectangular flat plate (1) of a light material having measuring properties. A series of recesses (4) forming webs (5) are provided along two lateral edges (6) of the plate (1). Strain gauges (12) are adhesively bonded to walls of bores (10) in the area of the webs (5) to determine the shearing stress under the load of a wheel (100) which has driven on the bending portion (3).

Abstract: A device for positioning and position stabilizing an inert mass supported for sluing on a base, comprising two driven portions (11,15) adapted to be driven by a motor (1) by way of controllable friction clutches (9,13) is furnished with a single rotor (5) driven by the motor (1) and cooperating with the two friction clutches to transmit a coupling torque in the same sense of rotation. Each driven portion (11,15) acts through separate power transmissions each (16-18,20-23) on the mass, one of the power transmissions effecting a reversal of the direction of rotation.

Abstract: A stabilizing and aiming drive for the turret (2) of a vehicle (1) comprises brake surfaces at revolving rings (6,7) which are supported for rotation at the vehicle superstructure or at the turret. The revolving rings (6,7) are driven in opposite directions by an electric motor (20) acting through driven pinions (23,24), and they carry brake surfaces (10,11). These brake surfaces face the friction linings (12,13) which are adapted to be acted upon by magnetic structural units (16,17) provided at the turret or vehicle superstructure for engagement with the brake surfaces, in order to thereby apply controlled stabilizing and aiming moments on the turret.

Abstract: A measuring device for hollow cylindrical surfaces, such as bores and the like, comprises a housing to be fixed in the bore by clamps, a measuring arm rotatable by a first step motor, a measuring head axially movable along the measuring arm substantially parallel to the axis of the bore surface by a second step motor and a sensor incorporated in the measuring head and radially movable relative to the measuring head against the force of a leaf spring in contact with the bore surface. The leaf spring supports strain gauges, the output signals of which are representative of the radial or transverse paths of the sensor and thereby for the shape of the bore surface to be measured.

Abstract: A suspension means for mounting an instrument or the like which is susceptible to shock on a movable carrier, in particular a vehicle, comprises a flexible sealing means adapted to absorb shocks in at least one direction and further comprises a blocking device for rigid coupling of said instrument with said carrier, the blocking device being actuable by a drive means which works in said one direction against the resiliency of the sealing means.

Abstract: Method and apparatus for positioning and altitude-stabilizing an inert mass slewable on a movable base in at least one axis are disclosed. Oppositely rotatable driving parts are supported on either the base or the mass, and the driven parts on the other of the base or mass are friction coupled to the driving parts under the control of one or more control devices. The control devices are controllable electromagnetic clutches or brakes, and control of the magnetic field is achieved by the hyperexcitation through feedback and intensification of the measured magnetic field strength and/or the control torque.

Abstract: A measuring plate with at least one strain gauge and upon which a wheel of a vehicle can rest to generate a signal which is used to indicate or register the wheel load or axle load of the road vehicle, is received in a frame and has edges which extend transversely of the direction of vehicle travel. According to the invention, these edges are bevelled or partly cut away so as to be overhung by complementarily shaped sides of the frame. These edges also are provided, along the bottom of the plate, with elastic bars or ribs which rest upon and support the center of the plate above a support plate or body disposed below the measuring plate. The plate can have these edges covered with an elastic material, especially a clear elastomer or the entire measuring plate can be sheathed in the elastomer.

Abstract: A running pad for an endless track is disclosed, including resilient retaining projections which extend away from opposite sides of the running pad and are adapted to enter into locking engagement, at their free ends, in recesses formed in the respective chain links. The retaining projections are formed by the ends of a unitary resilient plate that extends through said running pad and is designed to yield elastically in a direction toward and away from the recesses of the chain link in order to allow simple and quick assembly of the running pad at the chain link in a direction vertical to the tread surface without the need of disassembly of the chain link.

Abstract: This invention relates to an endless track having chain links which are connected by connectors as well as rod members extending through the connectors.A connection between the connectors and rods is provided by clamping contact surfaces on the rods and connectors in abutment with other, at least one of said contact surfaces comprising at least one depression arranged around the circumferential area of the bolt or connector contact surface, whereby a friction lock preventing the bolts from moving axially and/or rotating with respect to the connectors is achieved.

Abstract: A device for measuring the wheel or axle load of a road vehicle comprises a plate supported along its periphery at selected points or by knife edges in a frame. Along two imaginary lines of the plate, spaced apart by a distance greater than the length of a contact zone of a wheel on the plate, there are provided at least two pairs of wire strain gauges. Each pair of wire strain gauges includes a wire strain gauge extending in the direction of displacement of the wheel, i.e. perpendicular to the imaginary lines and a wire strain gauge parallel thereto. The measuring signals of the wire strain gauges is added and a multiplication factor a of about 0.3 is provided between the measuring signals of the two gauges of each pair which are added.

Abstract: A workpiece prepuncturing device for use with a sewing machine having drive means for reciprocating a needle and means for feeding a workpiece into association with the needle to sew a stitch comprises a perforating tool which is located at a spaced location from the needle which is comparable to a multiple of the stitch length. The perforating tool cooperates with a counter tool which is mounted on the opposite side of the workpiece and is movable toward and away from the workpiece in timed relationship to the speed of the feed and the reciprocation of the perforating tool. The counter tool is supported in a base portion of the sewing machine by an elastic suspension, and it is in drive connection with the main shaft of the machine which operates the needle and the feed for the workpiece.

Abstract: The invention relates to a force sensing device which is to be inserted in a force transmitting structural member, like a rope, especially a rope for lifting a jib or a load of a crane. The force sensing device has a flat body provided with weak locations at which strain measuring devices are fixed. The flat body is dimensioned with respect to a high degree of safety against overload, to high duration working stability and reproducibility as well as to a simple and cheap production.

Abstract: Overload safety device for telescopic cranes includes transmitter means for registering a working radius of a crane jib having a base jib member and transmitter means for registering a load applied to the jib, analog computer means operatively connected to both the first and second transmitter means for comparing a nominal value predetermined by the working radius with actual values furnished by the transmitter means for registering the load, and signal means responsive to a condition wherein the actual values equal the nominal value for releasing an overload signal, the nominal values being proportional to a permissible limit moment for a respective working radius, the permissible limit moment being composed of a moment of the jib weight and a moment for the permissible load, the transmitter means for registering the load being mounted at the base jib member of the crane jib and being adapted to measure the bending moment of the base jib member, the transmitter means for registering the load being an elongat