Abstract: The invention relates to a method for recording the position, location or movement of a body part of a patient and a device for recording the position, location or movement of a body part or a medical instrument. According to the invention, a graphic marker is connected with the body part or the instrument and an image of the body comprising the graphic marker is generated by an image recording camera (5, 6, 7). The image is processed by a processor device (14) as an image file. The invention is characterized in that at least one geometric size characteristic of the graphic marker is known, wherein the processor device (14) determines the position, location and/or movement of the graphic marker in the three-dimensional space and in a quantitative manner relative to the image recording camera (5, 6, 7) by means of the known size characteristic.

Abstract: A gas-flow indicator has an elongate housing defining a gas flow chamber between first and second ends, with an annular indicator within the chamber from the first end over part of the length enabling gas to pass along a bore through the indicator. The indicator is spaced from a sidewall of the housing, defining an annular space. A concealment member is movable from the first end by gas flow through the chamber, against a biasing towards the first end and has a skirt receivable into the space to seal at the first end, while the other end of the concealment member defines an opening resisting gas flow. The skirt is hold-able to conceal the indicator at a housing window. Increasing gas flow achieves pressure to overcome the bias, and the concealment member moves towards the second end, exposing the indicator member through the window, to indicate gas flow.

Abstract: A machine tool having an onboard measuring device automatically carries out various works which include ultra precision machining, washing and onboard measuring, by a numerical controller, without any interposition of a worker. For achieving this, an operation region of drive axes of the machine tool is previously divided into a machining region, a washing region and a measuring region. Positions of the drive axes are always monitored by the numerical controller, and when the drive axes enter each of the regions, a work allocated to each of the regions is automatically started and the work is continuously carried out until drives axes exit the region.

Abstract: A device of depth index of a planing machine includes a bottom base, an upper base, an index device and a sensor device. The upper base is fitted with an index device at a preset position in the front. A push rod is pushed up to activate the index device to show a planing depth. The sensor device includes a sensing strip pivotally connected to a preset position under the upper base. As soon as contacting with a wood material moving on the bottom base, the sensing strip will rotate for a preset angle and prop up the push rod to let it activate the index device to show a numerical value of planing depth. As the sensing strip is elongate, a wood material moving on the bottom base can immediately sensed by it, no matter what size or where or how it is placed, obtaining effect of wholly sensing the wood material being planed and ensuring measuring precision.

Abstract: A wood planing machine includes a base, a cutter carriage, a rotary cutter adapted to shave a workpiece, a height adjusting unit, and a shaving thickness indicator including a seat having a bottom opening, a supporting member mounted on the seat and having an aperture aligned with the bottom opening, an actuating member seated on a periphery of the aperture, a pointer, and a cam member connected to the pointer and mounted rotatably on the seat, and having a bottom lobe abutting against the actuating member. The actuating member is lifted by the workpiece during operation to actuate the cam member to rotate.

Abstract: A wood planing machine includes a base having posts and a seat mounted on the posts, a cutter carriage mounted on the posts, a rotary cutter mounted on the cutter carriage, a height adjusting unit for adjusting the height of the cutter carriage, and a height indicator including a lever having one end mounted on the seat and the other end projecting upwardly from the seat, a roller guide unit including a roller guide pivoted on the lever, and a flexible string passing through the roller guide. The string is secured to the cutter carriage at one end. The height indicator further includes an urging member interconnecting the work table and the other end of the string. The string has a reference segment that extends between the ends of the lever and that is exposed from the lever so that the moving distance of the reference segment can be measured with reference to the lever.

Abstract: A wood planing machine includes a base having posts, a pair of seats mounted on the posts, and a hollow supporting rod interconnecting the seats and formed with a slot. The wood planing machine further includes a cutter carriage mounted on the posts, a rotary cutter mounted on the cutter carriage, a height adjusting unit for adjusting the height of the cutter carriage, and a height indicator including a measuring scale, a slide member mounted in the supporting rod and slidable along the slot, a pointer connected to the slide member and extending to the measuring scale, a flexible string connected to the slide member and the cutter carriage, and an urging member for urging the string so as to permit the pointer to be movable along with the cutter carriage.

Abstract: A wood planing machine includes left and right pairs of posts fixed uprightly at left and right mounting sides of a machine base. A cutter carriage is disposed above the machine base, and has opposite end portions mounted respectively, vertically and movably on the posts. A cutter unit is disposed on the carriage. A carriage locking mechanism locks the cutter carriage at a selected height relative to the machine base. A thickness adjustment device is mounted on the cutter carriage for adjusting thickness to be removed from a workpiece by the cutter unit, and includes a pointer-retaining case that is fixed on the cutter carriage, and that is formed with a vertical row of positioning groove units, a vertical measuring disposed on the pointer-retaining case, and a vertical stop shaft. The shaft extends rotatably and is mounted vertically and movably on the pointer-retaining case, and has a lower contact end abutting against the machine base.

Abstract: Measuring device for quickly and accurately determining the thickness of an annulus between two cylindrical members, such as the catalyst retaining screens of a radial flow reactor, at any point along its length or circumference, comprises a wheeled cart having two sets of angularly mounted wheels which straddle the inner screen and a pair of spring loaded plungers with ball shaped contacts which contact the outer screen. As the device is lowered into an annulus with a cable, a pair of ultrasonic transducers positioned inside the cart direct opposed beams radially of the annulus to permit the radial distance between the screens to be measured.