A Revolving Fan Appliance for Dental Engines.
Year: 1898

page_text: A Revolving Fan Appliance for Dental Engines.
We, FRED WHIT GOULD, of Craven House, Northumberland Avenue, London,
Dentist, and LAWRENCE READ, Chairman of the Dental Manufacturing Co., Ld.,
of 6, Lexington Street, London, W., do hereby declare the nature of this inven-
tion to be as follows:-
This invention relates to a revolving fan appliance adapted to be fitted to the
tool carrier or hand piece of a dental engine. The function of the fan is to create
a draught of air for cooling impressions in the mouth and also for reviving
patients in case of faintness.
According to our invention, the fan resembles an ordinary ventilating fan and
consists of a series of spiral blades or vanes (preferably of aluminium for lightness)
mounted on a short shaft or mandrel the latter being so constructed and arranged
as to fit the tool carrier or hand piece of the dental engine. The boss or centre
of the fan is provided or formed with a convenient clamp or holder for the recep-
tion of a small piece of sponge or other absorbent substance or material, which
being saturated with a suitable perfume or restorative will increase the revivifying
effect of the revolving fan in cases of faintness.
T
1
1000
E. P. ALEXANDER & SON,
Chartered Patent Agents,
19. Southampton Buildings, Chancery Lane, London, W.C.. Agents.
We, FRED WHIT GOULD, of Craven House, Northumberland Avenue, London,
Dentist, and LAWRENCE READ, Ohairman of the Dental Manufacturing Co., Ld.,
of 6, Lexington Street, London, W., do hereby declare the nature of this inven-
tion and in what manner the same is to be performed to be particularly described
and ascertained in and by the following statement:-
This invention relates to a revolving fan appliance adapted to be fitted to the
ordinary tool carrier or hand piece of a dental engine. The function of the fan
is to create a draught of air for cooling impressions in the mouth, and also for
reviving patients in case of faintness.
Our invention will be clearly understood by referring to the annexed sheet of

page_text: drawings in which Figure 1 is a side elevation and Figure 2 is a plan of a revolving
fan appliance constructed in accordance with our invention.
It will be seen that the appliance resembles an ordinary ventilating fan and
consists of a set of air propelling blades or vanes a (preferably of aluminium for
lightness) mounted upon the extremity of a short shaft or mandrel 6 the latter
being constructed so as to fit into the ordinary tool carrier or hand piece of a
dental engine. c is a clamp or holder, here represented as consisting of inturned
claws, which is attached to or formed on the boss or centre of the fan and is in-
tended to receive and hold a small piece of sponge or other absorbent material d
which being saturated with perfume or restorative will enhance the revivifying
effect of the fan in case of faintness. This clamp or holder c may obviously be
dispensed with without departing from our invention, but we prefer to combine
the same with the fan for the reason given.
Having now particularly described and ascertained the nature of our said in-
vention and in what manner the same is to be performed we declare that what we
claim is:
1. As a new article of manufacture, a revolving fan appliance for dental engines
constructed and arranged substantially as described.
2. The combination with a revolving fan appliance for dental engines of a
clamp or holder adapted to receive and retain a piece of sponge or absorbent
material, substantially as described and for the purpose set forth.
ESTATA
DateT this day
OF ICD Rat y 1000.
1
E. P. ALEXANDER & SON,
Chartered Patent Agents,
19, Southampton Buildings, Chancery Lane, London, W.C., Agents.