Abstract:
The electric lamp has a quartz glass lamp vessel (1) in the wall (2) of which metal foils (4) are embedded to which internal current conductors (5) and to a flat end portion (8) of which external current conductors (6) are connected. The end portions (8) are eccentrically flattened by means of stamps (20, 21) so as to have a plane (7) to which the center line (9) of the external current conductor (6) is substantially coincident. The occurrence of cracks and facture of the metal foils (4) is thereby counteracted.
Abstract:
The disclosure describes a straightening machine for lead wires. The machine has concave straightening shoes with complementary shaped straightening rollers supported in closely spaced relation to the concavity of the shoes. The straightening shoes are supported by tension spring which apply a uniform pressure to the bottom of the shoes as the lead wires of the components pass between the rollers and the shoes. A limited travel adjusting screw is disposed in the bottom of the shoes thus providing fine adjustment between the shoes and the rollers. The shoes are made of a dielectric material which will not contaminate the work and is resistant to wear. The straightening surface of the shoes is progressively sloped and this, combined with the variable pressure and clearance adjustment, gives advantages not found in prior machines. No separate means is required for driving the components through the machine since the straightening action also drives the components through the machine. Jamming of the parts in the machine is practically eliminated.
Abstract:
Molybdenum foils for pinch sealing into quartz are etched using shields which protect selected welding areas at each end from the action of the electrolyte. Etching provides feathered edges all around but leaves thicker areas under the shields to which the inleads and electrodes are welded without any need for extra tabs to facilitate welding or to increase the current-carrying capacity. In a preferred foil-inlead construction, the inlead and electrode have spade ends coextensive with the thicker areas in the foils to which they are welded.