An Improved Device for Securing the Glass Panels or other similar parts of Clock Stands.
Year: 1891

page_text: Date of Application, 5th June, 1891
Complete Specification Left, 25th Nov., 1891-Accepted, 2nd Jan., 1892
PROVISIONAL SPECIFICATION.
An Improved Device for Securing the Glass Panels or other similar
parts of Clock Stands.
We, EDWARD DAVIES, and BRITISH UNITED CLOCK COMPANY LIMITED,
both of Gravelly Hill, near the City of Birmingham, Clock Manufacturers, do
hereby declare the nature of this invention to be as follows:-
This invention relates more particularly to that class of clock stands or frames
known as carriage clocks, or clocks used for other purposes, consisting of a frame
constructed to receive glass panels, which are slid into their rebates or grooves in
such frames, and its object is to facilitate the better securing of glasses or of
unequal size in such frames so as to effectually prevent them rattling or shaking
when the frame is complete; also to secure the back metallic plate (where such
is used).
At present it is found that when the glasses are inserted into their places,
and the frame completed one or more of the glasses are loose and shake.
This is owing to the fact of their not being all of an exact size, which latter is
difficult to ensure.
It is principally to overcome such defect that we have made this our invention.
Also, in some cases one or more metallic panels are used, in which case this our
invention is also employed to secure them in position.
To describe this our invention we will assume for instance that it is a clock frame
having an ornamental top, from which extend downwards four corner pillars which
said pillars have longitudinal grooves formed therein to receive the glass panels,
(or in some instances metallic plates). The bottom of these pillars is secured to
the base of the stand, which is of a more or less ornamental shape. Before the
attachment of the base to the pillars the glass panels are passed up into the pillar
grooves and then the base attached. In the upper surface of the base grooves are
also provided into which the lower ends of the panels rest.
In each of such
grooves slot holes are made, also where the back plate (or other similar plates are
used) a slot hole is made with or without the groove. If no groove is made the
plate may be passed into position after the frame is otherwise complete, but, if a
groove is used, the said plates are inserted similar to the glass panels.
A metallic pressure spring is now cut out and secured to the under part of the
base having as many outstanding arms as there are slot holes, the extreme ends of
such arms, being of equal width to the respective said slot holes. Such ends are
further shaped so as to afford an upward bevilled surface, which shall enter the
said slot holes and press against the lower edge of the glass, or in the case of
the metal plates (afterwards inserted) shall yield to allow the plate to pass it, again
rising behind it in order to prevent its return, suitable stops being raised upon the
inside against which the plates rest, whilst the centre of the said spring plate shall
stand somewhat from the under surface of the base, until rivetted or screwed
thereto at its centre, so as to give an inward pressure at the end of each arm.
Thus by these means, each piece of glass or plate is securely held independently
of the others, and all shaking of such parts avoided. Any number of such glasses
or plates, according to the convenience of the design of the frame, may thus be
provided for.
Dated this 4th day of June 1801
CHARLES T. POWELL,
Applicants' Agent.

page_text: COMPLETE SPECIFICATION.
An Improved Device for Securing the Glass Panels or other similar
parts of Clock Stands.
We, EDWARD DAVIES, and BRITISH UNITED CLOCK COMPANY LIMITED,
both of Gravelly Hill, near the City of Birmingham, Clock Manufacturers, 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 relates more particularly to that class of clock cases or frames
known as carriage clocks, or similar clocks used for other purposes, consisting of a
frame constructed to receive glass panels or other plates, which are slid into their
rebates or grooves in such frames, and its object is to facilitate the better securing
of the panels or other plates of unequal sizes in such frames by means of a pressure
spring plate, so as to effectually prevent them rattling or shaking when the frame
is complete.
At present it is found that when the panels are inserted into their places, and
the frame completed one or more of the panels are loose and shake.
This is owing to the fact of their not being all of an exact size, which latter is
difficult to ensure.
It is principally to overcome such defect that we have made this our invention.
Also, in some cases one or more metallic plates are used, in which case this my
invention is similarly employed to secure them also in position.
The accompanying drawings illustrate this our invention in which :-
Fig. 1, is a part sectional front elevation, and Fig. 2, a part sectional side
elevation of this our invention as it is seen applied to a clock case.
Fig. 3, is an inverted view of the case, prepared to receive the pressure spring
plate.
Fig. 4, is an inverted view of the stand showing the pressure spring plate secured
in position.
Fig. 5, is a detailed inverted plan view of the pressure spring plate.
Fig. 6, is a side sectional view on line A-B, and Fig. 7, is an end sectional view
on line C-D, of the said pressure spring plate.
Fig. 8, is a detailed section of one of the pillars on line E-F showing grooves
into which the panels are slid.
Similar numbers of reference, referring throughout the several views to the-same
thing or part, and in which :-
1, is a clock frame having an ornamental top 2, from which extend downwards
four corner pillars 3, which said pillars have longitudinal grooves 4, (see Fig. 8)
formed therein to receive the glass panels 5, or in some instances metallic plate or
plates 6. The bottom of these pillars are secured to the base 7, of the stand, which
is of a more or less ornamental shape. Before the attachment of the base 7, to the
pillars, the panels are passed up into the pillar grooves and then secured to the base
by means of the screw nuts 8, (Fig. 4). In the upper surface of the base, grooves 9;
are also provided into which the lower ends of the panels rest.
In each of such grooves slot holes 10, are made, also where the back plate 6, (or
other similar plates are used) a slot hole 11, is made, with or without a groove 9.
If no groove is made, the plate may be passed into position after the frame is
otherwise complete but if a groove is used, the said plates are inserted similar to
the glass panels.
A metallic pressure spring plate 12, is now cut out and secured to the under part
of the base, having as many outstanding arms 13, as there are slot holes, the
extreme ends of such arms, being of equal width to the respective said slot holes 10
& 11. Such ends are further shaped so as to afford an upward bevilled surface 14,
which shall enter the said slot holes and press against the lower edge of the glass

page_text: panels or the plates, (as seen in Figs. 1 & 2). In the case where it is desired that
the metal plate 6, should be inserted after the frame is otherwise complete, the
grooves 9, in the pillars, (otherwise intended for such plate) would be dispensed
with and the bevilled surface 14, of the pressure plate 12, stands a little above the
upper side of the base, so that when the said plate is pressed into position, the
surface 14, yields downwards to permit of it passing over, and then rises again
behind it, to keep it in such position.
Stops 15, are provided upon the base against which the front of the plate rests.
The securing of the spring plate at its centre by the rivet 16, (or otherwise)
to the base gives an upward pressure at the end of each arm, thus pressing
such ends firmly against the lower edge of the glass panels or the metal plate
or plates.
Instead of the bevilled surfaces 14, it will be clear that they may be substituted
by pieces of india-rubber or other similar substance, first placed in the slots and
acting as pads, and then a plate similar to 12, secured thereon.
Thus by these means, each piece of glass or plate is securely held independently
of the others, and all shaking of such parts avoided. Any number of such glasses
or plates, according to the convenience of the design of the frame may thus be
provided for.
Having now particularly described and ascertained the nature of this our said
invention, and in what manner the same is to be performed, we declare that
what we claim is :-
1. In the frames of clocks having panels of glass, or other loose plates, the
combination with the base of such cases having slot. holes beneath such panels or
plates, of a spring pressure plate or pad which is secured thereto, which passes into
such slots, substantially in the manner described and shown, and for the purposes
specified.
Dated this 24th day of November 1001
CHARLES T. POWELL,
Applicants' Agent.