Reflectors, and the like.
Year: 1888

page_text: Reflectors, and the like.
We, JOSEPH APPLETON, WILLIAM
THOMAS BURBEY and ALBERT
EDWARD
WILLIAMSON all of 91 Queen Victoria Street in the City of London Electrical
Engineers and Contractors do hereby declaro the nature of this invention to be as
follows:-
Heretofore holders or galleries for lamp globes, shades reflectors and the like have
generally been made in the form of a central boss with three radial arms provided
with set screws which after the globe has been placed on the holder are brought up
against the rim of the globe for the purpose of fixing it in place. . Now according to
our invention we make such galleries or holders in parts which are movable relatively
to each other round the central stem tube or rim on the lamp or on a ring provided
thereon. In general we make the gallery of three parts or arms all to turn on the
same central stem, tube or rim on the lamp and with some amount of friction and
provide them each with an upstanding rim lip or flange at a distance equal to the
outer radius of the rim of the globe. When the globe is to be put in use we bring
the arms close or near to each other and then turn them apart about equidistantly
whereby they are made to hold the globe the said upstanding lips or flanges bearing
against the rim of the globe. In cases where the lamp is exposed to vibrations which
might shake the arms out of the equidistant position and thus loosen their hold on the
globe we provide means for fixing them in position after adjustment. These means
may be of any suitable form or kind. In some cases for instance we use a nut ferrule
for screwing the arms down against each other. Sometimes we use a ring with
projecting pegs which ring is raised when the globe is put on and dropped when the
arms have been brought in position to hold the globe the pegs then dropping into
holes in the arms and keeping them from turning. Or the ring may have three holes
and the arm or a ring fixed on the stem of the lamp be provided with corresponding
pegs. A spring may be provided for keeping the ring in position. Or we make the
arms or one or two of them with a slight projection or slanting part which when the

page_text: arms are turned into the equidistant position is brought to bear hard upon some
portion of the other arm or arms near their central part. Sometimes we make two of
the arms in one piece.
Instead of the arms radiating round, a central boss or stem we sometimes fit or
provide the lamp with a ring a little smaller or a little larger than the rim of the
globe to be fixed and we provide on the said ring three slides or short arms capable of
being slided thereon and which when brought about equidistantly hold the rim of the
globe.
These holders are applicable for instance to the globes for pendent or other glow
lamps, in which case the flange or lip on the arms is bent inwards. Also to globes for
electric arc lamps or any other lamps for gas, oil or other fluid and either for the
globe, shade, reffector or chimney (or chimney and globe in one). For a globe made
without a lip rim we make the arms forked or with a slot into which the rim of the
globe drops. For a pendent glow lamp globe we generally make the ends of the arms
forked.

page_text: Improvements in Holders or Galleries for Lamp Globes, Shades,
Reflectors, and the like.
We, JOSEPH APPLETON, WILLIAM THOMAS BURBEY and ALBERT EDWARD
WILLIAMSON, all of 91 Queen Victoria Street in the City of London Electrical
Engineers and Contractors do hereby declare the nature of the said invention and
in what manner the same is to be performed to be particularly described and
ascertained in and by the following statement:-
Heretofore holders or galleries for lamp globes, shades, reflectors and the like have
generally been made in the form of a central boss with three radial arms provided
with set screws which after the globe has been placed on the holder are brought up
against the rim of the globe for the purpose of fixing it in place. Now according to
our invention we make such galleries or holders in parts, whch are movable relatively
to each other round the central stem tube or rim on the lamp or on a ring provided
thereon.
Figure 1 of the accompanying drawings is a perspective view of a gallery or
holder constructed according to this invention and Figure 2 is a vertical section
thereof.
Figure 3 is a vertical section of a modification with means for fixing the arms in
position and Figure 4 is an inverted plan thereof.
Figures and 6 are plan and elevation respectively shewing means for fixing the
arms in position.
Figures 7 and 8 show another modification in plan and elevation respectively.
Figures 9 and 10 show other modifications in elevation.
In general we make the gallery as shown by Figures 1 and 2 of three parts or
arms a b and c all to turn on the same central tube or rin d screwed or otherwise
fixed on the lamp or burner the arms being held with some amount of friction by
means of the rivetted washer e. We provide the arnis a b and c with upstanding or
turned over rims lips lugs flanges a² and c' respectively. When the globe is to be
put on we bring the arms a and c close or near to the other arm b as shown in dotted
lines and then turn them apart about equidistantly or so as to hold the globe, the said
upstanding lips or lugs a¹ 61 and c' bearing against the rim of the globe. We may
thus dispense with the ordinary set screws or other retaining devices or clips. In
cases where the lamp is exposed to vibrations which might shake the arms a b c out of
the equidistant position and thus loosen their hold on the globe we provide means for
fixing them in position after adjustment. These means may be of any suitable form
or kind. In some cases for instance we use a nut ferrule e as shown in Figures 3
and 4 for screwing the arms down upon or against each other. The ferrule nut e
may suitably be provided with lugs or projections e² e¹ for facilitating the screwing
up by hand. Sometimes as shown in Figures 5 and 6 we use a ring or other
conveniently shaped part with projecting pegs f¹ff which ring or part fis raised
when the globe is put on and dropped when the arms a b c have been brought into

page_text: position to hold the globe, the pegs f f f then dropping into holes in the arm
and keeping them from turning as shown. Under some circumstances the ring f
may as here shown have its hole square so as to prevent its turning round on
stem or burner of the lamp. Or the ring may have three holes and the arms or
a ring fixed on the stem or burner of the lamp be provided with corresponding
pegs. A spring may be provided for keeping the ring in position. Or we make
the arms or one or two of them with a slight projection punch mark, or slanting
part which when the arms are turned into the equidistant position is brought to bear
hard upon some portion of the other arm or arms near their central part. Sometimes
we make two of the arms in one piece.
Instead of the arms radiating round a central boss or stem we sometimes fit or
provide the lamp, as shown in Figures 7 and 8, with a ring a a little smaller or a
little larger than the rim of the globe to be fixed and we provide on the said ring a
three slides or short arms or dogs a¹ b and c capable of being slided thereon in slots
or otherwise and which when brought about equidistantly, hold the rim of the globe.
One or two of these dogs may be fixed by screw and nut or rivetting and the
movable one or ones may be provided with a spring which constantly bears against
the ring a as shown at a Figure 8.
These holders are applicable for instance to the globes for pendent or other glow
lamps in which case the flange or lip on the arms is bent inwards. Also to globes
for electric arc lamps or any other lamps for gas oil or other fluid and either
for the globe, shade reflector or chimney (or chimney and globe in one). For a
globe made without a lip rim we make the arms forked or with a slot as shown in
Figure 9 into which the rim of the globe drops. For a pendent glow lamp we
may use the just described arrangement reversed or we may make the ends doubled
to form a fork as shown in Figure 10.
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 :-
First The manufacture and use of holders or galleries for lamp globes and the
like with one or more movable arms substantially as described.
Second --In holders or galleries as described the appliances for retaining the arms
of said holders or galleries in place substantially as described.
Third-The construction of holders or galleries described and shown.
JOSEPH APPLETON.
WILLIAM THOMAS BURBEY.
ALBERT EDWARD WILLIAMSON.
By Jensen & Son,
77, Chancery Lane, London, W.C.,
Patent Agents.
E
JOSEPH APPLETON.
WILLIAM THOMAS BURBEY.
ALBERT EDWARD WILLIAMSON.
By Jensen & Son,
77, Chancery Lane, London, W.C.,
Patent Agents.