The invention relates to improved free-wheel mechanisms adapted to couple together or to disconnect two members capable of relative rotation. The free-wheel mechanism is intended to co-operate with inner and outer circular tracks, one of said tracks having ramp means and the other of said tracks having a plain surface, comprising a plurality of jamming members and a cage therefor, said cage comprising two parts, a first part having a plurality of circumferentially spaced windows for receiving th...

Zinc borate sealing glasses free of silica, alkali metal oxide and lead are disclosed for use in sealing and encapsulation, particularly in connection with semi-conductor devices and electronic components which are sensitive to alkali metal and lead. The glasses have coefficients of thermal expansion in the range of about 35 to 55 .times. 10.sup..sup.-7 /.degree.C, fiber softening temperatures in the range of about 600.degree. to 675.degree.C and annealing point temperatures in the range of abou...

A solder not containing lead (a lead-free solder) contains zinc and tin, and also contains 5 weight percent or less nickel and 0.5 weight percent or less aluminum with a liquid phase temperature of 260 degrees C. or greater. In addition, a lead-free solder has a liquid phase temperature of 260 degrees C. or greater, and contains 30 to 70 weight percent zinc, 5 weight percent or less nickel, and the remaining weight percent tin. Moreover, a joint is manufactured using these lead-free solders. As ...

A continuous liming process using sodium hydroxide solution and sodium sulfate and/or sodium salts of dicarboxylic acids, instead of conventional liming components.

A leadframe and method of fabrication of the leadframe. A leadframe is formed from one of copper or copper-based material and a coating of palladium is formed over the leadframe. Optionally, a layer of from about 10 to about 95 percent copper by weight and the remainder palladium is deposited between the leadframe and the coating of palladium. The coating of palladium is from about 3 to about 10 microinches and preferably about 3 microinches. The palladium/copper layer is from about 5 to about 4...

A telephone line interface includes a ring detect circuit for activating a RF transceiver and thereby notifying the RF headset of a ringing condition on a telephone line. A wire conversion circuit separates transmit voice signals from receive voice signals and provides the separated voice signals to the RF transceiver. A firmware allows the electronic hook switch to go off hook only when the line is ringing or only when the line is off hook.

This invetion relates to novel pigement compositions and processes of making the same. The pigments of the present invention are free-flowing and a process for their production comprises a process for the production of a free-flowing pigment composition comprising tumbling together a finely divided wax composition as herein defined with a powdered pigment for a time sufficient for substantialy all of the pigment to be coated onto or to be absorbed by the wax. Specifically, a pigment in accordanc...

A thermostat having an electrically insulating housing and a push button extending therein through a bottom wall thereof. Two normally closed contacts, one fixed and the other on a movable carrier with a projection are disposed within the housing. A spring member pivotable about its center portion has an end resting against the push button and an opposite end resting against the movable contact carrier. An electrically insulating sheet is disposed over an open end of the housing with a convex ou...

A lead-free free-cutting copper alloy having 69 to 79 percent, by weight, of copper; greater than 3 percent, by weight, of silicon; and a remaining percent, by weight, of zinc. The alloy preferable has greater than 3.0 percent and less than or equal to 4.0 percent, by weight, of silicon; and at least one element selected from among 0.02 to 0.4 percent, by weight, of bismuth, 0.02 to 0.4 percent, by weight, of tellurium, and 0.02 to 0.4 percent, by weight, of selenium. The alloy also preferable h...

A snag-free and stress-free fish catcher includes a supporting frame, a fish pocket, having a fish cavity, supported by the supporting frame, and a tension resting bed, having a tension surface, supported within the fish cavity, wherein the tension surface of the tension resting bed has a predetermined tension larger than a weight of the fish. Therefore, when the fish is captured within the fish cavity of the fish pocket, the fish lies on the tension surface of the tension resting bed in a flatt...