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    • 2. 发明专利
    • Improvements in steam generators and furnaces
    • GB186350A
    • 1924-03-24
    • GB2576122
    • 1922-09-23
    • WILLIAM THOMAS SMITH
    • F23C99/00
    • 186,350. Smith, W. T. Sept. 26, 1921, [Convention date]. Furnace gases, mixing steam with.-Steam is used as a fuel in steam-boiler furnaces by injecting it into a combustion chamber lined with refractory material and preliminarily heated to a high temperature by oil fuel, which if necessary may be used to maintain the temperature of the combustion chamber. The invention may be applied to all kinds of steam-boilers, in which case the resulting gases may be led into the steam space of the boiler. Fig. 6 shows the invention applied to. a Lancashire boiler. The front and rear ends C, D of the furnace flue are closed during normal working and the combustion products are led through tubes E into the boiler. Oil fuel for starting up is injected into the main combustion chamber and auxiliary combustion chamber N through openings provided in the front of the furnace. Steam is supplied from the boiler by a pump I through the pipes J, K, to ducts delivering into the main and auxiliary combustion chambers.
    • 7. 发明专利
    • Improvements in sound records applicable for use with picture films
    • GB285965A
    • 1928-02-23
    • GB2955826
    • 1926-11-23
    • WILLIAM THOMAS SMITHWILLIAM ARTHUR SMITHSAMUEL HENRY WOOD
    • G03B31/00
    • 285,965. Smith, W. T., Smith, W. A., and Wood, S. H. Nov. 23, 1926. Tape records; sound-reproducing apparatus associated with kinematograhs.-A sound-record of tape form, suitable for synchonous working with a kinematograph film, is made from. a strip of celluloid or thb like, perforated marginally so that it may be driven '.by sprocket-wheels, one groove or a number of parallel soundgrooves being impressed on the face of the strip by means of a matrix obtained from an original mechanically engraved record. In recording, the sound-grooves aM first made in wax in the usual way, separate parallel grooves being made simultaneously when required, as for example when it is desired to record separately various orchestral instruments, or a voice and an instrument. Copper is then deposited on the wax to form a matrix, and from this the positive record, such as shown in the Figure, is finally made by impressing a perforated celluloid &.c. strip. When recording simultaneously with the taking of a picture film, corresponding parts of the picture and sound records are indicated by similar letters, numbers, or like markings. The sound reproducing machine and the kinematograph are preferably geared together mechanically, or are driven by electric synchronous motors.