Improvements in or relating to Sand-glasses.
Year: 1888

page_text: Date of Application, 30th Oct., 1888
Complete Specification Left, 30th July, 1889-Accepted, 7th Sept., 1889
PROVISIONAL SPECIFICATION.
Improvements in or relating to Sand-glasses.
I, CHRISTOPHER WILLIAM CLARK, of 43, Hertford Road, Sparkbrook, Birmingham,
Warwickshire, Manufacturer's Manager, do hereby declare the nature of this inven-
tion to be as follows:-
This invention consists of the herein described improvements in or relating to those
sand-glasses (more particularly for use in boiling eggs) which are graduated to shew
various heights of the sand in the glass so as to indicate the number of minutes or
fractions of minutes that the sand has been running.
For the purposes of this invention I provide a sand-glass by preference of the form
described and claimed in the Specification of my Letters Patent No. 15224 of
A.D. 1884, the sand-glass being supported by a suitable stand such for instance as the "
well known form consisting of two end pieces supporting the ends of the sand-glass
and connected together by three vertical pillars. Fixed to one or more of the said
pillars or otherwise connected to the stand are pointers at certain distances up the
glass corresponding with the levels of the sand in the sand-glass at different times.
For instance the sand-glass may be of such a size that the whole of the sand will
be four minutes running through and the pointers may shew the level of the sand
at 1, 2 or 3 minutes. The pointers are by preference made from sheet metal in
the form of a hand with the index finger extended pointing to the glass and each
pointer is numbered to indicate the length of time that has elapsed when the sand
has reached that level. The pointers are by preference secured to the pillars by each
pointer having a tang which passes through a transverse hole in the pillar and is
clenched over, or the pointers may be secured to the pillars in any other convenient
manner and if preferred may be arranged to stretch right across the sand glass so as
to connect to both pillars or sides of the frame.
Dated this 20th day of October 1888
CHARLES BOSWORTH KETLEY,.
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or relating to Sand-glasses.
1, CHRISTOPHER WILLIAM CLARK, of 43, Hertford Road, Sparkbrook, Worcester-
shire, Manufacturer's Manager, 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 :-
This invention consists of the herein described improvements in or relating to those
sand-glasses (more particularly for use in boiling eggs) which are graduated to shew
various heights of the sand in the glass so as to indicate the number of minutes or
fractions of minutes that the sand has been running.
For the purposes of this invention I provide a sand-glass by preference of the form
described and claimed in the Specification of my Letters Patent No. 15224 of
A.D. 1884 the sand-glass being supported by a suitable stand such for instance as the
well known form consisting of two end pieces supporting the ends of the sand-glass
and connected together by three vertical pillars. Fixed to one or more of the said
pillars or otherwise connected to the stand are pointers at certain distances up the
glass corresponding with the levels of the sand in the sand-glass at different times.
For instance the sand-glass may be of such a size that the whole of the sand will
be four minutes running through and the pointers may shew the level of the sand
at 2, 3 or 4 minutes. The pointers are by preference made from sheet metal in
..

page_text: the form of a hand with the index finger extended pointing to the glass and eac
pointer is numbered to indicate the length of time that has elapsed when the sand
has reached that level. The pointers are by preference secured to the pillars by
each pointer having a tang which passes through a transverse hole in the pilla
and is clenched over, or the pointers may be secured to the pillars in any other
convenient manner and if preferred may be arranged to stretch right across the
sand-glass so as to connect to both pillars or sides of the frame.
The
accompanying drawings illustrate how this invention is to be performed.
Fig. 1 represents in front elevation a sand-glass with my invention applied, and
Fig. 2 is a sectional plan of the same; Fig. 3 shews on an enlarged scale one of the
fingers of the same and the method of securing it to the pillars or stand of the sand-
glass; Fig. 4 shews my invention applied to another form of sand-glass, and Fig. 5 is
a sectional plan of the same.
are, as
A is the sand-glass and B is the stand for supporting the same, this stand being of
any usual form, such for instance as that shown by Figs. 1 and 2 consisting of two
end pieces 66 connected together by three vertical pillars 62, or by a tubular metal
or wood frame 6' as shown in Figs. 4 and 5. The bulbs of the sand-glass
shewn, made as nearly parallel as possible. The pointers for indicating the levels of
the sand at different times are marked c.
are of such a size that the whole of the sand will be four minutes in running through
The sand-glasses illustrated on the drawing
and three pointers are used shewing the level at two three and four minutes. The
pointers c are each provided with a tang c¹ which is by preference of rectangular cross
section so as the better to prevent the pointer turning and which passes through the
pillar or other part of the frame of the glass and is clenched over inside so as to secure
the pointer in position; or any other convenient means may be adopted for securing
the pointers to the frame. The extremity c² of the pointer touches the glass A and
thus indicates the level of the sand with the greatest nicety.
By making the fingers or pointers c separate from the frame of the sand-glass and
separate from each other as herein before described, each of the pointers can be fixed
in its exact position after the sand-glass has been tested for the different times, thereby
ensuring the greatest accuracy; as the fact of its being impossible to blow all the
sand-glasses of the same size or shape renders it almost impossible to make two or
more of the pointers in one piece.
I am aware that prior to my invention sand-glasses have been made so as to shew
the different periods of time through which the sand has been running, and therefore
I do not make any general claim to sand-glasses of this kind, but,
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. In sand-glasses, the employment of indicators or pointers which are made
separate from each other and fixed to the frame of the sand-glass so as to indicate
different periods of time through which the sand has been running, substantially as
hereinbefore set forth.
2. The combination of the double glass bulb A, the frame B supporting said bulb,
and the pointers c fixed to the frame B for indicating different periods of time through 4
which the sand has been running, substantially as herein before described and illustrated
by the accompanying drawings.
3. The combination with a sand-glass, of a pointer or pointers c formed with a
tang c¹, for the purpose and substantially as herein before described and illustrated by
the accompanying drawings.
Dated this 29th day of July 1889
5
CHARLES BOSWORTH KETLEY,
- Agent for the Applicant.