Specification of William Edward Newton : compound and mould for artificial teeth.

  • Newton, William Edward.
Date:
1868
Catalogue details

Licence: Public Domain Mark

Credit: Specification of William Edward Newton : compound and mould for artificial teeth. Source: Wellcome Collection.

    11/18 (page 9)
    5 10 15 20 Specification., A.D. 1868.—536. 9 NeiotorCs Improved Compound and Mould for Artificial Teetli^ 8fC. First. The method herein set forth of preparing and working pyroxyline and its compounds to form an improved solid and homogeneous material for dental plates and other purposes. Second. Forming dental plates of the improved material prepared by working pyroxyline and its compounds in the manner herein described. Third. I claim forming dental plate moulds of sectional castings within a cylindrical adjustable flask as specified. Fourth. I claim the use of a clamping adjustable flask for forming a dental plate mould in sections within it constructed and operating as described. Fifth. I claim forming a dental plate of plastic material within a sectional mould under pressure as herein set forth. In witness whereof, I, the said William Edward Newton, have hereunto set my hand and seal, the Seventeenth day of August, in the year of our Lord One thousand eight hundred and sixty- eight. W. E. NEWTON, (l.s.) Witness, J. W. Moffatt, 66, Chancery Lane. LONDON: Printed by George Edward Eyre and William Spottiswoode, Printers to the Queen's most Excellent Majesty. 1868.