A NEW OR IMPROVED COMBINED HOLDER AND GALLERY FOR INCANDESCENT ELECTRIC LAMPS
Year: 1884

page_text: 1, WILLIAM HARVIE, of Glasgow in the County of Lanark, North Britain, Lamp
Manufacturer, do hereby declare the nature of the said invention for "A NEW OR
IMPROVED COMBINED HOLDER AND GALLERY FOR INCANDESCENT ELECTRIC LAMPS
to be as follows:-
This Invention which relates to a new or improved combined holder and gallery
for electric incandescent lamps, consists of a tubular stem into the lower part of
which the glass stem of the bulb of the lamp is fixed by Plaster of Paris or other
suitable material.-A portion of this part of the stem may be formed with slits in
its sides, which may yield slightly in the event of the glass stem becoming heated
by the incandesence of the carbon filament, and the plaster fills up a portion of the
stem above the glass, excepting the upper part, wherein a disc of wood or other
insulating material is placed and to which the conductor-attachments leading to the
terminals of the lamp are fastened by scrows or otherwise.-To prevent short-
circuiting of the Conductors or the terminals of the lamp, these are separated by a
cross piece of wood or other insulating material either attached to or formed in one
piece with the aforesaid disc. To connect the lamp to a pendant or other form of
Electrolier a Metallic Collar is used which rests upon the Cross-piece of insulating
material, and it is formed with a screw thread for for attaching it to the pipe of such
pendant or Electrolier.-By virtue of the position and length of the cross-piece of
insulating material, it with the aforesaid Metallic Collar forms a steady connection
with the pendant or Electrolier, whilst a cap or covering joint-piece covers over the
coupling, insulating material, and terminal connections by being screwed to the
stem, over them, on to the aforesaid stem. This cap also attaches the gallery to
the stem by holding the gallery between its screwed end and a flange left on the
stem for that purpose.-The conductors or leads which are of covered wire are led
within the pipe of the pendant or Electrolier to the Source of Electric Energy.
J. H. JOHNSON, DAY & JOHNSON,
Petitioner's Agents,
115, St. Vincent Street, Glasgow.

page_text: I, WILLIAM HARVIE, of Glasgow, in the County of Lanark, North Britain, Lamp
Manufacturer, do hereby declaro the nature of my invention for A NEW OR
IMPROVED COMBINED HOLDER AND GALLERY FOR INCANDESCENT ELECTRIC LAMPS
and in what manner the saine is to be performed, to be particularly described and
ascertained in and by the following statement :—
This Invention, which relates to a new or improved combined holder and gallery
for incandescent electric lamps, consists of a tubular stem into the lower part of
which the glass stein of the bulb of the lamp is fixed by plaster of Paris or other
suitable material. A portion of this part of the stem may be formed with slits in
its sides, which may yield slightly in the event of the glass stem becoming heated
by the incandescence of the carbon filament, and the plaster fills up a portion of the
stem above the glass, excepting the upper part, wherein a disc of wood or other
insulating material is placed and to which the conductor-attachments leading to the
terminals of the lanp are fastened by screws or otherwise.-To prevent short-
circuiting of the conductors or the terminals of the lamp, these are separated by a
cross piece of wood or other insulating material either attached to or formed in one
piece with the aforesaid disc.-To connect the lamp to a pendant or other form of
Electrolier a Metallic collar is used which rests upon the cross-piece of insulating
·material, and it is formed with a screw thread for attaching it to the pipe of such
pendant or Electrolier. By virtue of the position and length of the cross-piece of
insulating material, it, with the aforesaid metallic collar forms a steady connection
with the pendant or Electrolier whilst a cap or covering joint-piece covers over the
'coupling, insulating material, and terminal connections by being screwed to the
'stem over them, on to the aforesaid stem:-This cap also attaches the gallery to
'the stem by holding the gallery between its screwed end and a flange left on the
'stem for that purpose.-The conductors or leads which are of covered wire are led
within the pipe of the pendant or Electrolier to the source of Electric Energy.
.
In order that my said Invention may be properly understood and readily carried
into effect I will describe the Drawings hereunto annexed.
Figures 1, and 2, are respectively a front and a side elevation of a combined
holder and gallery constructed necording to my present invention.
Figures 3, and 4, are respectively a vertical section and a plan of the same.
Figure 5, is a plan of a portion of the same..
Figures 6, and 7, are respectively a plan and an elevation of a detached portion
'of the same, and
Figures 8, and 9, are similar views of a further detached portion of the same
hereinafter more particularly referred to.
In carrying out my present Improvements, I provide the tubular stem a, into tho
lower part of which, the glass stem of the bulb of the lamp 6, is fixed by plaster of
Paris c, or other equivalent cementing material. A portion of this part of the stem a,
may be formed with the slits c', in its sides, thereby allowing of the said stem a, yielding
.in the event of the glass stem of the lamp b, becoming heated by the incandescence
of the carbon filament thereof. The plaster of Paris c, or other cementing material
used, fills up a portion of the stem a, above the glass of the lamp and at the upper
part of this stem, the disc d, (Figure 3,) of wood or other insulating material is
secured. To this disc d, the conducting plates e, are secured by the pins ƒ, or their
equivalents, and to these plates c, the terminals g, of the lamp are soldered as
represented at h, upon the annexed drawings, or metallically united by other means.
The lamp hereinbefore described as secured within the stem a, is inserted in circuit

page_text: by means of the screws i, or their equivalent by which the ends of the line wire j,
are placed in electrical contact with the plates e.-To prevent short-circuiting of
the conductors j, the cross-piece k, of wood or other insulating material, is placed
upon the disc d, of which it may form a part, or be secured thereto by screws or by
other equivalent means. To connect the lamp, secured as herein before described, to
a pendant or other form of electrolier, I provide the metal collar l, shewn more
particularly at Figures 6, and 7.-This collar L, when in position, and as shewn at
Figure 3, rests upon the cross piece k, of insulating material, and it is formed at its
interior with a screw thread for attaching it to the pipe m, of such pendant or
Electrolier, while at its exterior the said collar is provided with the annular pro-
jection n, which supports the cap or covering joint-piece o, hereinafter described.
By virtue of the position and length of the cross-piece k, of insulating material, it,
with the aforesaid inetallic collar 7, forms a steady connection with the pendant or
Electrolier the pipe of which, is represented at m, upon the annexed drawings,
whilst the cap or covering joint-piece o, (see more particularly Figures 8, and 9,)
covers over the coupling, insulating material, and terininal connections herein before
described, by being screwed to the stem a, over them, the said stem a, being pro-
vided with an outside screw for this purpose.-The cap or covering joint-piece o,
also attaches the gallery 1, between its screwed end and the flange or collar q
formed on the stem a, as will be seen with reference to the annexed Drawings the
Conductors or leads j, which are of covered wire, aro led from the lanp b, within
the pipe m, of the pendant or Electrolier, to the source of Electric Energy. The
gallery p, is provided with the screw r, whose inner end is free to rotate within
the adjustable or sliding piece 8, and whose position, for the supporting of a larger
or smaller globe or shado, is adjusted by the said screw r, being turned in the
required direction through the rigid nut and guide piece t.
Having now described and particularly ascertained the nature of my said
Invention and in what manner the same is or may be performed, I declare that
what I claim is
Combined holders and galleries for incandescent electric lamps in which the parts
are constructed and insulated substantially as and for the purposes herein before set
forth with reference to the annexed sheet of Drawings.
Dated this tenth day of December 1884.
J. H., JOHNSON, DAY & JOHNSON,
Applicant's Agents.