Abstract: The present disclosure relates to a main power take-off (PTO) transmission unit of the sandwich type for a vehicle and to a PTO output unit. The main PTO transmission unit comprises a first gearing and a first housing, in which the first gearing is arranged. The first housing is arranged to be attachable to a second housing of the PTO output unit. The PTO output unit comprises a second gearing arranged in the second housing. The second housing is arranged to be attachable to the first housing of a main PTO transmission unit. The present disclosure further relates to a PTO comprising the main PTO transmission unit and the PTO output unit as well as to a powertrain and a vehicle.

Abstract: A steering shaft coupling for an automotive vehicle includes first and second shaft sections which are both serrated and which may be telescopically engaged. The shaft sections are locked together with an elastically deformable locking ring which is positioned within internal and external grooves formed on the shaft sections. The shaft sections are resiliently biased so as to resist unwanted vibration while in use in a vehicle by means of an elastomeric load and seal ring positioned between the assembled shaft sections.

Abstract: A steering shaft coupling for an automotive vehicle includes first and second shaft sections which are both serrated and which may be telescopically engaged. The shaft sections are locked together with an elastically deformable locking ring which is positioned within internal and external grooves formed on the shaft sections. The shaft sections are resiliently biased so as to resist unwanted vibration while in use in a vehicle by means of an elastomeric load and seal ring positioned between the assembled shaft sections.

Abstract: A method for compensating color when illuminating fluorescent objects by means of one or more illuminating lamps which emit a significant amount of ultraviolet light, particularly when illuminating flags hoisted on flag poles, wherein the objects include ultralight fluorescent material and have a white or a light color when illuminated with visible light. The object is provided with an additional fluorescent material which when illuminated fluoresces in a color that together with a weak blue color provides a white or essentially white color by additive color mixture, the blue color being derived by illumination of the object with ultraviolet light.

Abstract: A method pertaining to vehicle headlamps which emit ultraviolet light and which include a light source for generating both ultra-violet light and visible light, and a filter which is placed in the beam path between the light source and the surroundings and which is intended to substantially filter out visible light and to transmit ultraviolet light, said headlamp, however, unintentionally transmitting a given proportion of visible light, such as red and blue light, of low intensity.

Abstract: A fluorescing coating which fluoresces when illuminated with light within the ultraviolet wavelength range. The coating is intended primarily for road markings of different kinds and includes material (4;5) with pigment for emitting color when illuminated with light within the visible wavelength range and material which fluoresces when illuminated with light within the ultraviolet wavelength range. The coating further includes a binder (3). The invention is characterized in that the material which fluoresces when illuminated with light within the ultraviolet wavelength range consists of glass spheres (2) or glass pieces produced from a glass mass which has been doped with a dope additive such as to cause the glass in the glass spheres or glass pieces to fluoresce when illuminated with ultraviolet light.

Abstract: A pressure responsive potentiometer, including an elastic body which includes a silicone mass mixed with a carbon fraction in a quantity such that the electrical resistance across the body is changed when a force is applied to the body, which body has electrically conductive contact tabs or plates or like elements connected thereto in mutually spaced relationship. The invention is characterized in that the body (1) is composed of a mixture including a silicone mass, silicone oil and carbon grains, where the weight ratio of silicone mass to silicone oil is about 1:0.3 to 1:0.5, preferably about 1:0.4, and where the carbon grains have a size which is greater than a size corresponding to a 50 mesh sieve (50 meshes per inch) and a size which is smaller than the smallest dimension of the body (1).

Abstract: A dippable vehicle-headlamp, particularly a car headlamp, which is operative to transmit both ultra-violet and visible light and which includes a light source which is intended to emit both visible and ultra-violet light, a reflector and a filter. The reflector (1) and the light source (2) are intended to transmit simultaneously a light lobe which corresponds to a dipped-beam lobe and a full-beam lobe. The filter (4) is intended to filter-out visible light, but to transmit ultra-violet light. The invention is characterized in that the filter is mounted for displacement from a first position (FIG. 1) in which the filter (4) is located out of the beam path for transmission of the light lobe, to a second position (FIG.

Abstract: A vehicle headlamp comprises a reflector and a headlamp glass constructed to produce a so-called full beam lobe when a light source is located in a predetermined position in relation to the reflector. The invention is characterized in that the light source (11) is constructed to transmit both a large proportion of visible light and a large proportion of ultraviolet light, and in that a filter (19; 22; 23) is located in the beam path of the headlamp and is effective in filtering that part of the light emitted by the light source (11) which gives rise to a light lobe corresponding to the difference between a so-called full beam lobe and a so-called dipped beam lobe. The headlamp is further characterized in that the filter (19; 22; 23) is constructed firstly to filter light so that substantially no light within the visible light spectrum will be transmitted through the filter, and secondly to transmit ultraviolet light.

Abstract: A lamp unit comprising a box-like body which is provided with one or more apertures covered with a sheet of material transparent to visible light and which houses a light source. In accordance with the invention the side (10) of the sheet (6) or sheets facing inwardly of the body (1) is, or are, covered totally or partially with a layer of a substance which fluoresces when irradiated with ultraviolet light, and the light source (7) is arranged to transmit ultraviolet light. In accordance with one preferred embodiment of the invention the sheet (6), or sheets, is, or are, made of a material which is transparent to visible light but impermeable to ultraviolet radiation.

Abstract: A device for indicating a definite direction, comprising a screen located in front and a screen located behind, which comprise opaque lines (3) separated by transparent interstices (4), whereby a moire pattern arises when the device is viewed. The screens (8,9) have different division. The opaque lines (3) have the same width in both screens (8,9).According to the invention the device is characterized in that one of the screens (9) is provided with only one opaque line less than the other of the screens (8), that in said one screen the width of a transparent interstice plus the width of an opaque line (3) is greater than or about equal to 1.5 times the width of the opaque line, but smaller than 1.9 times said width, preferably 1.5 times to 1.8 times the width of the opaque line. The two screens, further, are positioned symmetrically in relation to each other so that a central opaque line of one of the screens symmetrically overlaps a central transparent interstice of the other screen.

Abstract: An instrument for marking leading lines, comprising a front screen and a behind screen (1,2,15,16), which include opaque lines (3) separated by transparent interstices (4), whereby an interference pattern, a so-called moire pattern, arises when viewing the instrument. The screens have different division, i.e. different distances between the opaque lines.According to the invention, each of the screens (1,2,15,16) comprises a plate, which at its center is bent to an obtuse angle (v), which screen plates are positioned by means of attachment means (6,7,8) so that the obtuse angles (v) face toward each other, in which case the front screen plate (1) is provided with a denser screen division than the behind screen plate (2), or alternatively so that the obtuse angles (v) face away from each other, in which case the front screen plate (15) is provided with a sparser screen division than the behind screen plate (16).

Abstract: A suspension device for an angle indicator intended to indicate the angle of an object to the vertical line and comprising two angle-indicating devices designed each to indicate a predetermined angle to the vertical line and located in two planes perpendicular to each other. The suspension device comprises an outer ring which is attached rotatably about a diameter of the ring and connected to the object, and an inner ring which is located perpendicularly to and inside of said outer ring. The inner ring is movable along the inside of the outer ring. Attachment components are provided for the angle indicator inside of the inner ring and enable movement along the inner ring. According to a preferred embodiment, the attachment components are designed to attach the angle indicator so that one of the angle-indicating devices indicates the angle of the plane of the inner ring to the vertical line.

Abstract: An angle indicator for indicating two mutually perpendicular directions and including two moire screen angle indicating devices, each including several screens consisting of opaque lines separated by transparent gaps with the screens of each device positioned parallel to one another to provide a moire interference pattern. One screen can be fixed and the other freely rotatable to adopt a predetermined position relative to the plumb line. The two devices, each with its pair of screens, are positioned in mutually perpendicular planes, and a mirror is fitted and arranged to project a mirror image of one device in a plane in which the pair of screens of the second device is located, and by the side of the second device so the moire patterns formed at both of the angle indicating devices appear to be lying beside each other when the angle indicator is viewed.

Abstract: A coiling tape measure which is coiled and stored in a housing. In its uncoiled state the tape has a slightly curved cross-sectional section with a convex lower surface. On its convex lower surface there are one or more closed channels and a device is provided for supplying a pressure medium to said closed channels to effect an increase in the self-supporting capacity of the tape measure. Several embodiments of the channels on the convex surface and several embodiments of the pressure supply device are disclosed.

Abstract: A rotary regenerator is provided with a hydraulic drive system to vary the rotational speed in relation to the temperature scanned. The hydraulic control system provides accurate operation at low rotational speeds.

Abstract: A device for indicating an angle or direction of pipes in pipelaying operations in which two screen units are disposed in a predetermined spaced relation in a housing placed in a pipe section to measure the angle of the pipe. The two screen units each have opaque lines separated by transparent gaps, the opaque lines being in the form of concentric circles of the screens being disposed in the housing with the circles of both screens being mutually concentric. When observing the pattern through the screens, the circles of the two screens form interference patterns, i.e., moire patterns representative of the angle of the device relative to line of sight of the viewer.

Abstract: A parallelepiped box is provided with three screens of parallel opaque lines, forming a definite plane, separated by transparent interspaces, and with a mirror behind the screens to direct ambient light from an opening in the top of the box through the screens. A forward screen is provided in the front of the box. Two rearward screens are behind the forward screen with one screen at an angle with the forward screen, the angle being in the definite plane formed by the parallel lines. Light enters the box through a diffuser in the opening and is directed through the screens to produce moire patterns indicating whether an observation is made above, below or in the definite plane. A second mirror may be provided above the opening to direct ambient light thereinto or a light source may be located above the opening to provide light thereto.

Abstract: An arrangement and structural cross section of grid lines in screens which present a moire pattern. The cross-sections of the screen lines are arranged so that light from behind the screen is not reflected on the front of the grid lines and the moire pattern, as seen by an observer at the front of the screens, better depicts the information pattern by avoiding distortion arising in prior art structures. Several embodiments of screen grid line cross-sections are proposed.