A method and apparatus is disclosed for determining the speed and direction and height/width dimensions of subject movement within a field of view. Two video frames are compared such that the dimensions of change within the two frames are determined, sorted and counted. One count is made of the vertically-occurring change; the other count is made of the horizontally-occurring change. The derived change dimensions and position is stored to be later compared with the change dimensions and position...

An oil change nozzle used particularly for guide rollers or the like on caterpillared vehicles. Two inflatable tubes mounted on the nozzle are inflated by the oil under pressure into a sealing contact with the inner wall of a hole in the shaft in such rollers. Old oil is pushed out by new oil with no possibility of mixing with new oil. This invention relates to an oil change nozzle or tool used for the change of lubricating oil particularly for the shafts of guide rollers on vehicles with a cate...

A speed change gear system for providing at least four forward drive speed ranges and one reverse drive speed range includes three planetary gear sets of the single-pinion type, three clutches, and two brakes. As a result of the coupling and uncoupling of the clutches and brakes, the movable elements of each of the planetary gear sets are suitably coupled so as to attain the various speed ranges.

A quick change frame for pictures comprising frame moldings and corner joints for detachable connection of the latter together. The frame moldings are in the form of hollow rails with at least one opening arranged on each side in a frame molding side wall enclosing the cavity. The corner joints comprise angle pieces with the shape and size of the cross-section of angle arms corresponding to the frame moldings. On the angle arms there is at least one male detent part extending out of a plane of t...

A reference heart beat is recirculated for comparison with an actual heart beat. First and second voltages are respectively produced with magnitudes representing the rates of recirculation of the reference heart beat and the actual heart beat. A voltage controlled oscillator produces a signal having a variable frequency dependent upon the differences in the first and second voltages. This signal is used to synchronize the rate of the reference heart beat with the rate of the actual heart beat. T...

A speed change unit for a tiller comprising three shafts, two shift gears having a large width axially thereof and two driven gears, one of the driven gears being freely rotatably mounted on one of the shafts and selectively meshable with one of the shift gears and another gear being fixedly mounted on the same shaft and selectively meshable with one of the shift gears, thereby the rotation of one of the driven gears on the shaft can be delivered to a transmission system for axles via two transm...

A speed change gear system of the planetary type suited for applications to fluid couplings utilized upon automotive vehicles includes at least first, second, and third planetary gear sets suitably interposed between an input shaft and an output shaft, first and second clutches, and first, second, and third braking means. The first planetary gear set may include a first sun gear, a first planetary gear engaged therewith, a second planetary gear engaged with the first planetary gear, a first ring...

Two communicating chambers hold distinctively different materials or substances. An arming device separates them till ready for use. After arming, either the frozen state of the fluid in the lower chamber, or an unmelted plug between the chambers prevents the mixing of the substances until the temperature change to be indicated has taken place.

A speed change gear system of the type including an input shaft, an output shaft, three planetary gear sets each having a central sun gear, an ring gear, a set of planetary pinion gears meshingly connecting the sun gear with ring gear and a revolving carrier rotatably supporting the pinion gear, two clutches, and three brakes. The improved system provides four forward speeds including an overdrive shift and one reverse and comprises five integrally rotatable units formed by combining elements of...

A quick-change holder for a machine tool wherein a nut holding a tool can be attached and detached by a single action. In the quick-change holder of the type, in which the nut charged with the tool can be attached to and detached from a holder body by the radial movements of a plurality of balls which are so loosely fitted in a plurality of radial through-holes formed in the holder body as to be made movable in the radial direction, according to the present invention, the aforementioned holder b...