Improved Anti Vibration Device for Gas, Electric, and other Lighting.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improved Anti Vibration Device for Gas, Electric, and other
Lighting.
I GEORGE MAY of No. 13 Monk Street in the City of Westminster Gas Fitter
do hereby declare the nature of this invention to be as follows:-
My invention refers to an improved Anti Vibration Device, applicable to
lighting apparatus of all kinds in order to neutralise the disadvantageous effect of
all kinds of shaking or vibration arising indoors or out from causes of permanent or
accidental nature, thus for instance from heavy traffic, from machinery in
factories, from removing furniture or other heavy goods and the like. In such
cases the invention can be used with Incandescent, Street, and other Gas burners
Electric and other lights, where the Incandescent mantles, Electric Globes, or any
other weak part in use are exposed to breakage by the vibration. The apparatus
which can be made of any material which may be found suitable--consists of a
cylindrical case of proper dimensions, which case is open at its upper end and
closed at the bottom. This bottom part (the base) is, however, perforated in its
middle and provided with a tube which projects downwards and upwards from
it. The tube is made in one piece with the base the downwards projecting part
of this tube merely forms a nipple for fixing the case to the inlet tube (or
corresponding part, if not Gas) whilst the upwards projecting part of it ascends
inside the case till a little above the upper edge of the cylindrical wall of the case.
In the upper part of the case is enclosed a thin circular disc with downwards turned
cylindrical flange which fits exactly to the wall of the case so as to slide easily
up and down inside same. This disc is perforated in its central part by a smaller
cylindrical tube projecting downwards and upwards and forming one piece with
it: The downwards projecting part of this tube is arranged so as to telescope with
above mentioned upper tube of the base of the case, when the flange disc slides up
and down in the case. During this sliding motion, the flange disc (with its
telescoping tube) is under the influence of an upwards acting spiral spring which
is enclosed by the wall of the case and the flange of the disc and is lodged freely
inside same, with its bottom part resting against the base of the case and its top
part pressing softly against the disc.
To complete the arrangement, the cylindrical case is closed at its top by a cap
with inside thread flange screwed on to the outside wall of the case, thus keeping
the disc in the upper position of same exactly in level with the top edge of the
case. The cap has an opening for the upwards projecting tube of the disc. This
last tube closes in a suitable height above the cap by the outlet piece (or cor-
responding part if not Gas) screwed on to it, this piece carrying a milled edge,
by which the downwards motion of the sliding disc, with its tubes, is limited to a
proper extension, the milled edge turning against the cap.
The effect of this construction is evident. Through the action of the spiral
spring, the sliding flange disc (with its tubes) is pressed softly against the closing

page_text: cap of the case. But by any vibration whatever, the spiral spring will give away
and the sliding disc (with its tubes) will play vertically inside the case, without
disturbing the safe communication between inlet and outlet, this being
ascertained during the motion by the telescoping tubes etc. and the damage of the
vibration will be neutralised. It is claimed that this device will be found to be
more efficacious than any other device hitherto used for the same purpose because
it only works perpendicularly, therefore not allowing any lateral motion, as has
been the case in all devices and the like used with Incandescent gas or Electric
lighting. Therefore, it will not only last longer, but also be a more effectual
remedy against breakage of mantles, chimneys and the like.
Dated this Twelfth day of November 1896.
COM
ETE SPECIFICATION.
Improved. Anti Vibration Device for Gas, Electric, and other
Lighting.
I GEORGE MAY of No. 13 Monk Street in the City of Westminster Gas Fitter
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 refers to an Improved Anti Vibration Device applicable to light-
ing apparatus of all kinds in order to neutralise the disadvantageous effect of all
kinds of shaking or vibration arising indoors or out from causes of permanent or
accidental nature thus for instance from heavy traffic from machinery in factories
from removing furniture or other heavy goods and the like. In such cases the
invention can be used with Incandescent Street and other gas burners, Electric
and other lights where the Incandescent mantles, Electric Globes, or any other
weak parts in use are exposed to breakage by the vibration. The present
specification refers to the accompanying drawing which shows the apparatus in
side elevation partly sectional. The apparatus, which can be made of any material
and dimensions which may be found suitable, consists of a cylindrical case, (a)
of proper dimensions (i.e.) to support one or more lights or Burners which case is
open at its upper end and screwed at the bottom to the base (b). This bottom
part (the base) is, however, detachable and perforated in its middle and provided
with a tube (c) which is concave and fitted with a stuffing box (s) which projects
downwards and upwards from it. The tube is made in one piece with the base
downwards the Inner part of this tube merely forms a socket (d) for fixing the
case to the inlet tube (or corresponding part, if not Gas) whilst the upwards pro-
jecting part (e) of it ascends inside the case till a little above the upper edge of
the cylindrical wall of the case. In the upper part of the case is enclosed a thin
circular disc (f) with downwards turned cylindrical flange (9) which fits exactly
to the wall of the case (a) so as to slide easily up and down inside same. This
disc is perforated in its central part by a smaller cylindrical tube (h) projecting
downwards and upwards and forming one piece with it. The downwards pro-
jecting part (2) of this tube is arranged so as to telescope with above mentioned
upper tube (e) of the base of the case when the flange disc slides up and down in
the case. During this sliding motion the flange disc (f) with its telescopic
tube (h) is under the influence of an upwards acting spiral spring (k) which is
enclosed by the wall of the case (a) and the flange (9) of the disc (f) and is lodged
freely inside same with its bottom part (1) resting against the base (b) of the
case (a) and its top (k) pressing softly against the disc (f). To complete the

page_text: arrangement the cylindrical case (a) is closed at its top by a cap (m) with inside
thread flange (n) screwed on to the outside wall of the case (a) thus keeping the
disc (f) in the upper position of same exactly in level with the top edge of the
case. The cap (m) has an opening for the upwards projecting tube (h) of
the disc. This last tube closes in a suitable height above the cap (m) by the outlet
piece (o) (or corresponding part if not Gas) screwed on to it this piece carrying a
milled edge (p) by which the downwards motion of the sliding disc, with its
tubes, is limited, to a proper extension, the milled edge turning against the
cap (m).
The effect of this construction is evident. Through the action of the spiral
spring, (kl) the sliding flange disc (with its tubes) is pressed softly against the
closing cap (m) of the case. But by any vibration whatever, the spiral spring will
give away and the sliding disc (with its tubes) will play vertically inside the
case without disturbing the safe communication between inlet and outlet this
being ascertained during the motion by the telescoping tubes etc. and the damage
of the vibration will be neutralised. It is claimed that this device will be found
to be more efficacious than any other device hitherto used for the same purpose
because it only works perpendicularly therefore not allowing any lateral motion
as has been the case in all devices and the like used with Incandescent gas or
Electric lighting. Therefore it will not only last longer, but also be a more
effectual remedy against breakage of mantles chimneys and the like.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is
An improved Anti Vibration device for Gas Electric and other lighting
principally characterised by working perpendicularly on a spiral spring without
lateral motion and thereby preventing the breakage of mantles caused by
vibration.
Dated this 11th day of August 1897.