Improvements in and relating to the Manufacture of Artificial Teeth.

    公开(公告)号:GB191004625A

    公开(公告)日:1910-07-14

    申请号:GB191004625D

    申请日:1910-02-24

    Applicant: ELDRED BYRON E

    Inventor: ELDRED BYRON E

    Abstract: 4625. Eldred, B. E. June 23, 1909, [Convention date]. No Patent granted (Sealing fee not paid). T e e t h, artificial.- Cased dental pins are baked with the teeth, the ends of the basemetal cores being kept from contact with the tooth plastic, preferably by inert mineral matter such as a l u m i n a. Naked base-metal pins may be used by first painting with a basic enamel, such as a mixture of magnesia or alumina with a little water-glass or tooth plastic. The headed pins 6 are placed in the mould, ignited alumina 8 is applied as powder or paste, and the tooth plastic 9 moulded round them in the usual way. After firing, the outer ends of the pins may be covered with gold solder. The pins are preferably cut from wire in which the platinum sheath has been united to the core either directly, as by casting one metal against the other in a liquid state, or by first welding on to the core a coating of copper, silver, or gold as described in Specifications 8913/06, 8913A/06, and 20,788/08, [all in Class 83, Metals, Cutting &c.]. The alumina may be replaced by platinum foil. The exposed end of the core may be deeply recessed, or the platinum sheath arched over it.

    Improvements in or relating to Metallic Bodies adapted for Sealing into Glass and the like.

    公开(公告)号:GB191327669A

    公开(公告)日:1914-07-23

    申请号:GB191327669D

    申请日:1913-12-01

    Applicant: ELDRED BYRON E

    Inventor: ELDRED BYRON E

    Abstract: 27,669. Eldred, B. E. Dec. 1. Drawings to Specification. Leading-in wires.-Composite wires for sealing into lamps and other vitreous articles are made without a platinum surface but with a lower aggregate coefficient of expansion than the surrounding vitreous material, in which they are held under compression. A core of metal having a low expansion varying with temperature is combined with a highly expansive sheath, which renders the mean expansion more regular, though still less than that of glass; or the arrangement may be reversed. For example, a rod of nickel-iron or steel containing 38 per cent of nickel may be sheathed in copper, or less preferably in silver, gold, iron, nickel, and other metals or alloys, turned down and then worked into wire of from 0À008 to 0À015 inch in diameter, the thickness of the copper being 0À000,05 inch. Such wire has a diametric expansion-coefficient of 0À000,006,3 and is suitable for lamp glass of ordinary thickness, having a coefficient of 0À000,008,7. Greater differences in the coefficients are allowable if the lamp stems are made thicker. In modifications, (1) the materials for the core and sheath may be. interchanged; (2) the core may be composite, for instance an iron alloy may be sheathed in copper and then in silver or gold. In making the wire, the methods described in Specifications 8913/06 and 8913A/06, [both in Class 83, Metals, Cutting &c.], may be used. Specifications 4466/10, [Class 83 (ii), Metal articles &c.], 4467/10, and 23,775/12 also are referred to.

    Improvements relating to the Control of the Temperature, Volume, and Duration of Flame or Combustion, chiefly applicable to the Calcining of Lime and the like

    公开(公告)号:GB190117197A

    公开(公告)日:1902-04-17

    申请号:GB190117197D

    申请日:1901-08-27

    Applicant: ELDRED BYRON E

    Inventor: ELDRED BYRON E

    Abstract: 17,197. Eldred, B. E. Aug. 27. Gases, inert or neutral, supplying.-To enable the temperature, volume, and duration of flame or combustion to be controlled, the air supplied under forced draught to a furnace or kiln is diluted with a neutral gas. The invention is described in connection with a lime or cement kiln. The air supplied by the fan 12 is diluted with carbonicacid gas and products of combustion withdrawn from the kiln by the pipe 10, air being admitted at 22. An additional supply of air is delivered by the fan 27 to the furnace bridge at 25. The material in the kiln acts as an accumulator of heat, and maintains the ignition temperature, the combustion being retarded and taking place over a greater space within the kiln.

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