Abstract: A chromatic converter for altimetry is disclosed which is intended to produce a real image of a predefined observation zone of a sample surface that is representative of the local height of this sample. This chromatic converter comprises: a device for illuminating the sample comprising a source of polychromatic light and arranged to cover all of the observation zone by means of N incident beams defining object points of the sample, an Offner autocollimator comprising a Mangin mirror for introducing axial chromatism into each of the N incident beams before they arrive at the sample surface to be reflected as N respective reflected beams, N filtering holes associated with the N respective reflected beams to convert them into filtered beams of low spectral width, intended to form image spots constituting the real image, and at least one polarization device making it possible to polarize the N incident beams and the N reflected beams.

Abstract: A chromatic converter for altimetry is disclosed which is intended to produce a real image of a predefined observation zone of a sample surface that is representative of the local height of this sample. This chromatic converter comprises: a device for illuminating the sample comprising a source of polychromatic light and arranged to cover all of the observation zone by means of N incident beams defining object points of the sample, an Offner autocollimator comprising a Mangin mirror for introducing axial chromatism into each of the N incident beams before they arrive at the sample surface to be reflected as N respective reflected beams, N filtering holes associated with the N respective reflected beams to convert them into filtered beams of low spectral width, intended to form image spots constituting the real image, and at least one polarization device making it possible to polarize the N incident beams and the N reflected beams.

Abstract: A professional hand held probe device, having an optional telescoping feature. This probe as used in an inspection device can be of a fixed length or telescoping to any desired length. This probe has a frame assembly at the distal end that is remotely adjustable by a button on the handle section and is configured to accept mirrors of various diopters. This frame is also configured to accept light emitting diodes of different wave lengths witch includes ultra violet light. The light emitting diodes are energized by batteries in the handle, witch handles three AAA batteries supplying a voltage in excess of what is needed for the light emitting diodes, a regulating device is used to control the voltage, this enables the user to insert either alkaline or ni-cad batteries. provision for an outside power source is also provided for extended periods of use.

Abstract: A professional hand held probe device, having an optional telescoping feature. This probe as used in an inspection device can be of a fixed length or telescoping to any desired length. This probe has a frame assembly at the distal end that is remotely adjustable by a button on the handle section and is configured to accept mirrors of various diopters. This frame is also configured to accept light emitting diodes of different wave lengths witch includes ultra violet light. The light emitting diodes are energized by batteries in the handle, witch handles three AAA batteries supplying a voltage in excess of what is needed for the light emitting diodes, a regulating device is used to control the voltage, this enables the user to insert either alkaline or ni-cad batteries provision for an outside power source is also provided for extended periods of use.

Abstract: A brake bleeding tool having a positive locking device, one for each, of the standard and the recessed bleeder valves of vehicle braking systems. These tools have a nut driver configuration on the proximal end allowing the mechanic to open and close the valves in a hand tight manner. The tools other than the locking configurations operate exactly the same. A biased discriminator pin allows air to be expelled from the system by the mechanic pumping the brake pedal, however when the brake fluid reaches the discriminator pin it is detained allowing the brake pedal to reach a full top position. If the mechanic feels that there is still some air in the system, then by added pressure on the brake pedal to overcome the adjustably biased discriminator pin air and brake fluid will be discharged through the tool, a fitting and hose at the distal end directs the brake fluid into a container. By using one of these tools on each brake cylinder being bled, any number of cylinders can be bled at the same time.

Abstract: A hollow core for a concrete block is cast from an abrasion resistant alloy steel known in the trade as #8620. The core is generally rectangular in cross section and includes a top wall and depending side walls. The side walls are ground to a mirror-finish and the fine tooling grooves formed when the side walls are ground are all parallel to each other and transverse to the top wall of the core. This greatly lessens the frictional resistance between the core and the cement greatly increasing the useful life of the core in comparison the cores previously constructed.