Improved Means for connecting Globes or Shades to Lamps and Lanterns.
Year: 1897

page_text: Date of Application, 11th Aug., 1897
Complete Specification Left, 11th May, 1898-Accepted, 2nd July, 1898
PROVISIONAL SPECIFICATION.
Improved Means for connecting Globes or Shades to Lamps and
Lanterns.
We, HARRY JOHNSON SILCOCK and BENJAMIN ALBERT TONGUE, trading as
Silcock and Tongue, of Wainwright Street, Aston, jurta City of Birmingham, Lamp
Manufacturers, do hereby declare the nature of this invention to be as follows;-
This invention relates to lamps and lanterns, but it has distinct reference to the
mounting and attachment of their globes or shades. The said invention has
been chiefly considered in respect of outside lamps, which are subjected to wind
pressures, and bad weather, but it is equally applicable to lamps and lanterns
used indoors.
It is preferable, in order not to obstruct the light and render the lamp shadow-
less, that a transparent glass globe of a balloon figure, and blown in one piece, is
used, but hitherto it has been found difficult to mount such a globe and fix it to
the lamp body.
Now this invention is a simple and inexpensive means of attaching such globes,
which will allow of their being easily placed into and out of position for cleaning,
or being renewed should a breakage occur.
The means consist essentially of a concaved ring-seating, of metal or other
suitable material, horizontally disposed with its convexity uppermost, and per-
manently fixed to the base framing of the head of a lamp, and a removable
clamping ring, of metal or other suitable material, capable of being pulled onto
the concaved surface of the first named ring by screw nuts and bolts. The base of
the balloon globe seats itself upon the concave ring-seating, as aforesaid, and is
there affixed by means of the clamping ring; the latter fitting around the inside
face of the globe's base and being pulled up to the concave seating, with the globe
between it and the latter, by the nuts and bolts. The gripping faces of the ring-scat-
ing and the clamping ring are covered with rubber, felt, or other soft material, in
order to obtain a good grip on the globe's surface and to prevent breakage by any
unevenness when clamping up; also to allow of expansion and contraction due
to the change of temperature. The ring-seating is of a skeleton formation at its
centre, and has vertical holes therethrough to receive the screwed bolts fixed to
the clamping ring; nuts on the ends thereof pulling the same up.
Such a globe holder as described ensures a dead grip upon the globe, and pre-
vents and deadens all vibration, it also ensures a wind-tight connection and
materially assists, in the case of incandescent lights, in protecting the mantles from
being shaken, as upon the top of the balloon globe is mounted and carried the
ornamental crown and wind guard.
•
To detach the globe it is only necessary to unloosen the screw nuts of the clamp-
ing ring, remove the latter, by the hand, from its clamping position inside the globe,
and lift off the latter. The concave construction of the seating renders the globe

page_text: As a modification, instead of the clamping means being complete rings the one
or both may be sectional, and flexibly connected if necessary.
Dated this 10th day of August 1897.
W. P. THOMPSON & Co.,
11, Burlington Chambers, New Street, Birmingham,
Agents for Applicants.
Improved Means for connecting Globes or Shades to Lamps and
Lanterns.
We, HARRY JOHNSON SILCOCK and BENJAMIN ALBERT TONGUE, trading as
Silcock and Tongue, of Wainwright Street, Aston, juxta Birmingham, Lamp
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 pertains to lamps and lanterns, but has distinct reference to the
mounting and attachment of their globes, and their ornamental crown-parts,
bonnets, and wind guards which surmount them. The said invention has been
particularly considered in respect of outside lamps which are subjected to bad
weather and wind pressures, and which have their globes supported, but the same
is equally applicable and is of considerable advantage in respect of indoor lamps
and lanterns, for it enables, in both cases, a globe to be used which is blown in
one piece and which is known as a "balloon globe."
It is very desirable in all lamps and lanterns that nothing should surround or
abound the globe which will obstruct the light and throw shadows, and this is
obtained by the use of balloon globes, but in the case of lamps or lanterns in
which the said globes require to be supported (not suspended) it has hitherto been
found impossible to give them a good mounting, and to accomplish this is the
object of this invention.
The invention is characterised by a concaved or flared ring-like saddle or tray,
which is permanently attached to suitable framing supports and which is adapted
to form a seating for the balloon globe and carry it, and a removable clamping
ring, also of a similar shaped figure to the said saddle or tray, which is adapted to
pull down the balloon globe onto its seating and between soft flexible washers or
surfaces interposed between the saddle and clamping ring faces; the said pulling
down being effected by screw bolts and nuts.
In view of the particular advantage obtained when the globe is supported it
is thought best to describe the invention in connection with an outside lamp
having an upright pillar as its body part or support, and so its application to this
is illustrated by the accompanying sheet of drawings, but it will be obvious to
anyone connected with the particular art that the means for attaching the globe
when the latter is hung or suspended instead of supported, as would be the case in
a depending or hanging lamp, can be the same as that illustrated in the drawings
with the addition only of details in fitting. In the said sheet of drawings Fig. 1
shows in elevation and perspective the upper portion of an ordinary street lamp,
and with an incandescent burner applied, whilst Fig. 2 is an enlarged section of
sufficient of the upper or burner portion of the lamp, Fig. 1, to illustrate the

page_text: invention. Fig. 3 is a horizontal section taken on the dotted line Fig. 2, in order
to show how the various parts of the globe attachment means of this invention
pull up to each other and clamp a part of the said globe between them. Fig. 4
sets forth the material part of Fig. 2 with the balloon globe detached and the
attaching parts therefor disconnected.
In describing the invention in connection with the said figs., a concave or flared
ring-like saddle or tray a is horizontally and permanently disposed and supported
with its concavity uppermost upon the top of the frame bars a² of the lamp post
head a³. The inner face at of this concave saddle or tray has an inclination
identical, or approximately so, with the base of the balloon globe c, and the
same is either covered with a yielding material such as rubber, felt, or the like, or
a rubber ring lining is provided to be placed into position upon the said face. The
middle part or bottoni a of the concave saddle or tray a has a number of vertical
holes a formed within it, to permit of the passage of screwed pulling-up bolts
which will be hereinafter described.
d is a removable clamping ring which is adapted to pull down the base of the
globe c onto the ring-like saddle a and to clamp it between itself and the said
saddle; the said ring having screwed bolts upon its underside which take through
the holes a', as aforesaid, in the middle part of the saddle, and engage screwed Hy
nuts d, which pull down against the middle part as of the saddle a as an abut-
ment. The gripping face of the clamping ring d is preferably convexed or
coned (as shown in the drawings) to the shape of the inside of the globe's base c²,
in order to obtain an extended grip, and between its gripping face and the inside
of the globe's base is interposed a flexible washer of rubber, felt, or other
suitable material, in order to protect the said globe from fracture by an uneven
clamping and to obtain a good grip upon the globe's surface. It is preferable that
this soft material washer and also the one marked a, which 'faces the concave
saddle a, should be of a material and thickness which will allow of the expansion
and contraction of the globe due to change of temperature, and 'for this purpose
india-rubber has been proven of value.
The balloon globe c in this case supports and carries the ornamental crown and
wind guard e of the lamp, the parts being connected by clamping set pins e²
carried by the part e which impinge against a soft metal ferrule disposed within
a ring groove c in the extreme top of the globe c.
To disconnect the globe in Fig. 2 the ornamental crown or wind guard e is first
removed from the said globe and then the clamping ring d loosened by the unscrew-
ing of the fly nuts and removed from the inside of the globe, which will then
admit of the latter being lifted from its seating.
Such a globe holder or attachment means as described ensures a dead grip upon
the globe and prevents and deadens all vibration which would otherwise be
communicated from the base of the lamp post to the globe; it also ensures a wind
tight connection of the globe to its support and materially assists, in the case of an
incandescent light, in protecting the mantle from being shaken and becoming
broken. In respect of the steadying of the light the result of the carrying of the
ornamental crown and wind guards upon the top of the balloon globe will be
obvious in its effect, and also that by making the seating for the globe's base of a
concave construction, self centering of the globe must result.
The clamping media d need not be a complete ring, it may consist of sectional
parts, but the form as shown is considered the most practical and inexpensive.
In the application of the invention to depending or hanging lamps the globe
would be made to rest upon the concave ring-like part a, which would be then
inserted, and the clamping ring would come upon the top of the same and be
pulled down.
The attachment means as described is preferably made of metal and by castings,
but the materials of which the parts are composed may be modified to suit the
attachment of any particular shaped globe.

page_text: Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what I
claim is:-
First. In a lamp or lantern having an unglazed or one-piece globe, attaching
the said globe to the parts to carry it by a connection means consisting substan-
tially of a concave ring-like saddle or tray, having its face lined or covered with
soft material and which is adapted to form the globe's seating, and a clamping
ring constructed with a soft gripping face, which is pulled down upon the
concave saddle or tray by screw nuts and bolts so as to clamp the globe softly but
rigidly between the said saddle or tray and itself in the manner substantially as set
forth.
Second. In a lamp or lantern having an unglazed or one-piece globe, the com-
bination of a concave ring-like saddle or tray fixedly carried and supported upon
the lamp's frame and having vertical holes through its middle part, and also one
of its faces lined with soft material, a balloon globe which is adapted to seat itself
upon the lined face of the said saddle or tray, and a clamping ring having screwed
bolts depending from it, and which is placed into position from the inside of the
balloon globe and pulls down upon the concave saddle or tray through a soft material
seating, and so as to clamp the said globe between it and the said tray through the
medium of screwed nuts, substantially as set forth.
Third. In a lamp or lantern having an unglazed or one-piece globe the com-
bination with the said globe and the means described for attaching it to its support
of an ornamental crown or wing guard carried by the said globe by being clamped
to its crown, substantially as set forth.
W. P. THOMPSON & Co.,
11, Burlington Chambers, New Street, Birmingham,
Also of Liverpool, London and Manchester,
Patent Agents for Applicants.
W. P. THOMPSON & Co.,
11, Burlington Chambers, New Street, Birmingham,
Also of Liverpool, London and Manchester,
Patent Agents for Applicants.