Improvements in or relating to Artificial Teeth
Year: 1890

page_text: Date of Application, 3rd July, 1890
Complete Specification Left. 7th Nov.. 189u-Accepted, 13th Dec., 1890
PROVISIONAL SPECIFICATION.
Improvements in or relating to Artificial Teeth...
PHILIPPA HAYNES GREY, Dentist 290 Essex Road Islington London, N. do hereby
declare the nature of this invention to be as follows:-
It consists in the insertion of a link, cramp, or pin wire into a diatoric tooth, to
give additional hold into the vulcanite or other material, the tooth may be preferably
constructed of a suitable shape for insertion of link or holdfast, which may be straight,
ring shaped or otherwise according to requirements, or links or cramp pins may be
sold separately to fit any tooth now used; the link, or cramp in ring converts the
diatoric tooth into a pin tooth, and allows a tooth to be first furnaced and cramp
afterwards inserted, avoiding the expense of platina.
Dated this 3rd day of July 1890.
PHILIPPA HAYNES GREY.
COMPLETE SPECIFICATION.
Improvements in or relating to Artificial Teeth.
I, PHILIPPA HAYNES GREY, of 290 Essex Road, Islington, in the County of London,
Surgeon Dentist, do hereby declare the nature of this invention and in what manner
the same is to be performed, to be particularly described and ascertained in and
by the following statement :-
My invention relates to improvements in artificial teeth, and consists in the insertion
of a metallic link, cramp, or pin wire into a diatorie tooth to give additional hold
into the vulcanite or other material; the tooth may be preferably constructed of a
suitable shape for insertion of a link or holdfast, which may be straight, oblong, ring
shaped or otherwise according to requirements, or link, or cramp pin may be sold
separately to fit any tooth now used, the link pin converts the diatoric tooth into a
pin tootli, it allows a tooth to be first furnaced and cramp afterwards to be inserted
avoiding the expense of platina.
And in order that my invention may be thoroughly understood, I now proceed to
describe the accompanying drawings thereof, reference being had to letters and figures
marked thereon.
Figure 1 is a side elevation.
Figure 2 is a back view of Figure 1.
Figure 3 is a side view of a tooth for shallow bites.
Figure 4 is a back view of a tooth with the hole lengthways.
Figure 5 is a side view of a tooth with two transverse holes and double cramp pin.
The teeth are constructed of any suitable shape with the boss or protuberance
thick and strong where necessary for standing strain of cramp c and not reaching quite
to margin of body to give room for pins and hide holes d, or e, with the body a of
tooth with flat cutting edge for lapping over opponent teeth.
For shallow bites 1 provide a specially designed tooth with a boss on neck
of tooth as in Figure 3, with the holes d, and e, in any suitable position. To
some teeth for certain cases as in Figure 4 I form the hole d lengthways and
insert the cramp pin c.
These said holes can be round, triangular, serrated or
screwed.
If preferably I construct a tooth with two transverse holes d, without the bottom or
vertical hole, in order to insert a double cramp c, c, as in Figure 5, with a notch or
projection to prevent outward pressure in biting. The cramps may be cemented in
Prins bid i

page_text: the holes where necessary, the wire being either round, roughened, flat, or of any other
section or shape according to circumstances.
The teeth are constructed of china, earthenware, hardened glass or of any other
suitable material.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The combination of a tooth and cramp pin or pins, and the conversion by means of
cramp pins of a diatoric tooth into a pin tooth, substantially as herein described and
according to the accompanying drawings.
2. The combination of special designed and suitable constructed teeth, fitted with
holes, cramp pins, or notches, to give a rigid hold into the vulcanite or other material,
substantially as herein described and for the purpose set forth.
3. To construct the teeth of china, earthenware, hardened glass, or other suitable
material, substantially as herein described.
Dated this 7th day of November 1890.
J. P. BAYLY,
18, Fullam Place, W., Agent for the Applicant.