A variable resistor provided with a mechanism which permits the tap resistance to be varied non-linearly; that is, the mechanism permits a contactor to be displaced at a varying rate in response to the operation of input means at a constant rate.

The invention relates to a manual control apparatus, such as a control pedal for a drive-by-wire control systems, and similar applications. According to an aspect of the invention, the manual control apparatus comprises a hysteresis mechanism that provides more precise and controllable hysteresis than previous mechanism. According to a further aspect of the invention, the manual control apparatus comprises an angular position sensor, and the angular position sensor may comprise abutments that re...

The rotating type variable resistor includes a housing; a rotating member disposed to be rotatable in the housing; a ring-shaped support member having a conductive pattern at one surface of the support member and disposed at any one side between the housing and the rotating member; and a sliding member disposed at the other side between the housing and the rotating member, and capable of sliding relative to the conductive pattern, wherein the conductive pattern is composed of a high resistor uni...

A strip conductor comprises a first layer with at least one curved section. At least one region of the curved section provided with an additional layer having a smaller resistivity than the first layer. The at least one region is constructed such that resistance on tracks of different radii of curvature is approximately equalized.

An in-line spiral mixer characterized by successive left and right hand spaced spiral vanes disposed within a cylindrical tube. Each of the vanes comprises at least two separate parts with a central opening therebetween. The leading edge of each part is tapered from the outer to inner ends in the direction of fluid flow to minimize accumulation of material on the edge and cause self cleaning.

A plumbing device for plugging a pipe includes a radially expansible rubber sleeve disposed about one end of an axial shaft or tube. An annular flange is provided on the end of the shaft while an elongated metal cylinder is disposed coaxially about the shaft on the opposite side of the sleeve to transmit axial compressive movement to the rubber sleeve from a screw jack mechanism releasably secured on the shaft in proximity to its other end.

In an automatic exposure camera for changing from the minimum diameter of the camera diaphragm and the highest speed of the shutter to the maximum diameter of the diaphragm and the lowest speed of the shutter, namely, from the minimum exposure quantity to the maximum exposure quantity, in accordance with the indicator position of an exposure meter, a control stroke is provided for changing the shutter speed from the highest speed to the lowest speed of the shutter which is appropriate for the fl...

A process and apparatus for production of aerosols which comprise charging a chemical in an aerosol forming apparatus equipped with a heating means and a fluid jet nozzle, and ejecting a fluid from the fluid jet nozzle, whereby a chemical vapor is drawn in the reduced pressure area formed by jetting of the fluid, as well as rapidly ejected into the atmosphere.

A process for achieving a uniform flow profile of very viscous liquids when flowing through tubes or reaction chambers, wherein the very viscous liquid is passed through annular spaces extending concentrically with increasing diameter over the entire cross-section of the tubes or reaction chambers and having the same depth in the direction of flow, and this procedure is repeated once or several times, the annular spaces being staggered with respect to each other as viewed in the direction of flo...

In a variable resistor of the type wherein there is formed on an insulating substrate a resistive member having wide portions and narrow portions in the sliding direction of a slide member and ends thereof wired respectively to a ground terminal and an input terminal. A plurality of contact elements formed on said slide member are brought into sliding contact with said resistive member and a high resistance film allowing the passage of electrostatic charges therethrough is formed at portions of ...