Year: 1888

page_text: Date of Application, 19th Mar., 1888
Complete Specification Left, 19th Dec., 1888
Complete Specification Accepted, 22nd Jan., 1889
JAMES JOSEPH HICKS.
THOMAS PARTRIDGE SALT.
By Harris & Mills,
23, Southampton Buildings,
Agents.

page_text: COMPLETE SPECIFICATION.
Improvements in Clinical and other Thermometers.
We, JAMES JOSEPH HICKS of 8 Hatton Garden in the County of Middlesex,
Meteorological Instrument Manufacturer, and THOMAS PARTRIDGE SALT of
69 Corporation Street, Birmingham, in the County of Warwick, Surgical Instrument
Maker, do hereby declare the nature of this invention, and in what manner the
same is to be perfornied, to be particularly described and ascertained in and by the
following statement :-
The invention relates to improvements in thermometers, and refers more particularly
to clinical and other thermometers which are divided and figured on the stems thereof,
but it is also applicable to other thermometers.
The object of our invention is to impart an ornamental character to the thermometer
and at the same time, facilitate the reading thereof.
For this purpose we form the tube behind the bore with a layer of ruby or other
colored glass, backed by a layer of opaque enamel, the object of the opaque enamel
being to render the ruby or other colored glass, brighter and more distinct. The
contents of the bore are readily seen above the colored glass, as also are the divisions
and figures, where such are applied to the tube of the thermometer.
And in order that our said invention may be more clearly understood and readily
carried into effect, we will proceed, aided by the accompanying drawings, more fully
to describe the same.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a face view of a clinical thermometer constructed according to our
invention, which thermometer may be made of the ordinary, cylindrical section
shown at Figure 2; or of the section known as the "lens front" shown at Figure 3.
According to our invention we form the tube behind the bore a with a layer of
ruby or other colored glass backed by a layer of opaque enamel, the object of the
opaque enamel being to render the ruby or other colored glass brighter and more
distinct than it would appear without such backing.
The opaque enamel preferred to be used is the ordinary white enamel, which is
frequently embedded in thermometer tubing behind the bore thereof.
Our invention is applicable to clinical and other thermometers having the divisions
and figures on the stems thereof as also to other thermometers which are provided with
a separate scale.
The manufacture of thermometer tubing with a layer of opaque enamel embedded
therein behind the bore is well known; it is therefore unnecessary to describe the
manufacture of tubing for our invention, as the only difference between them is the
employment by us of a compound layer of ruby or other colored glass and opaque
enamel instead of a layer of simple opaque enamel as heretofore.

page_text: By constructing thermometers with a layer of ruby or other colored glass backed by
a layer of opaque enamel behind the bore as herein shown and described, a highly
ornamental character is imparted thereto, in addition to which the contents of the
bore will be readily seen above the colored glass, as also will be the divisions and
figures, where such are applied to the stem of the thermometer.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed we declare that what
we claim is :-
The manufacture of clinical and other thermometers with a layer behind the bore
of ruby or other colored glass backed by a layer of opaque enamel substantially as
herein shown and described and for the purpose stated.