A mechanical speed change device designed to occupy minimum space in the ial direction. In operation, a ball type cam follower simultaneously tracks sinuous cam grooves in the drive and driven members. The lead angles of the respective cam grooves are different so that a given axial displacement of the cam follower requires different rotational movements of the drive and driven members. Therefore a given rotational speed of the drive member produces a different rotational speed of the driven mem...

A sensor responsive to the rate of change of changing rotational speeds of a rotatable element in which a flyweight is yieldably coupled with the rotatable element through an interconnecting element at any relative rotational position of the flyweight and interconnection for normal rotation thereof at a known ratio of rotational speed while accommodating decoupled rotation of the flyweight upon a change in rotational speed of the driving element at such a rate as to cause a torque in excess of a...

A device for indicating whether the pressure in a pressurized vessel, such as a pneumatic tire, is at or above a desired predetermined level. The device employs pressure-biased indicating means held by releasable means employing a floating latch member in a position indicating vessel pressure at or above the desired level. The indicator means is released by movement of the release means and floating latch member, upon decrease of the pressure in the vessel below the desired level, to move to ano...

This invention relates to testing to determine the residual recoverable energy of a battery of cells or a single cell, without requiring any electrical connection to the battery or the addition of special materials, substances, or devices to the intrinsic cell, and therefore, the remaining useful life of the battery or single cell. Two different embodiments, both of which rely on the fact that the electrodes of a battery or cell undergo chemical change during discharge, are disclosed. In the fir...

A belt-type speed change device having a pair of pulleys around which passes a belt. A side plate of each of the pulleys is axially movable relative to the other, fixed, side plate, thereby to provide for changes in transmission ratio. A rest position of the movable side plate of one of the pulleys, in embodiments described the driven pulley, is defined by a first abutment. The first abutment is movable between an operative position in which it is engageable by the movable side plate to define t...

A speed changer comprising a stationary pulley and a powered shaft defining sun axis. Two adjustable diameter planet pulleys and a pair of power-transmitting belts transmit power to an output sun pulley coaxially aligned with the stationary pulley. An adjustment screw inversely varies the diameters of the two sun pulleys; resultant changes in belt tension produce changes in the diameters of the planet pulleys.

There is disclosed a low cost change dispensing apparatus which includes a plurality of coin channels supported at an acute angle with a horizontal plane. Coins are stacked on edge in each of the coin channels. A coin delivery mechanism associated with each coin channel includes a rockable actuator member which supports the lowermost coin of each channel on a laterally extending supporting surface. The actuator member is selectively rocked by the energizing of a solenoid member to eject the lowe...

A bicycle derailleur gear change provides improvements to existing systems which utilize a pivoted yoke carrying the pivots of a chain guide roller and a chain tension roller and a displacement device which includes two parts one of which is fixed to the bicycle frame and the other supports the guiding device and moves relative to the first to move the guiding device transverse to the bicycle wheel and across the gear change sprockets. In the present device the guiding device has a guide lug whi...

A rate of change in altitude computer for providing a pilot with information to safely operate an aircraft. A beam of light is communicated through a mask. A gear responsive to altitude rotates the mask. A photocell receives the beam of light as it passes through the mask to produce sinusoidal wave signals. The positive node of the sinusoidal wave signal is modified to activate a transistor which allows a capacitor to be charged for a time period equal to the positive node. During the negative n...

In a power transmission system in which the torque delivered to an input shaft is transmitted to an output shaft via a planetary gear speed reduction mechanism, a stepless speed change system comprising a stepless speed change mechanism including a disk operatively connected to a gear mounted on the input shaft, a roller in contact with the disk and shiftable diametrically of the disk in a direction intersecting the axis of rotation of the disk, and a handle lever for shifting the roller, the ro...