Improvements in and relating to "Roses " or Electrical Connections for the Ceilings of Buildings or Structures,
Year: 1892

page_text: Date of Application, 14th July, 1892
Complete Specification Left, 6th Apr., 1893-Accepted, 13th May, 1893
PROVISIONAL SPECIFICATION.
Improvements in and relating to "Roses
" or Electrical Connections
for the Ceilings of Buildings or Structures,
We, WILLIAM MARTIN HADDow, and JOHN SMITH HUTCHISON, both of
114 Berkeley Street, Glasgow, Lanarkshire, Electricians, do hereby declare the
nature of our invention to be as follows:-
This invention has reference to and comprises a new mode of and means or
arrangement and combination of the parts of " roses or electrical connections
specially suitable for the ceilings of the rooms of buildings, ships, or other structures,
whereby the main or sub-main wires will be tapped by terminal blocks fixed to the
base, and the joints or electrical connections heretofore used in these ceiling
roses" dispensed with.
.
"
The improvements consist in forming the ceiling " rose of a base block,
preferably of square shape, of porcelain, earthenware or other insulating material,
with a plain flat upper surface which would be screwed or secured next the ceiling
of the apartment where the electrical connections are to be made. The under
part or surface of this base block would be formed with two longitudinal channels
or grooves along which the main or submain electrical wires would pass. A trans-
verse terminal block preferably of oblong shape of brass or other electrical
current conducting metal would be fitted across each of these channels, preferably
near the centre of their length secured by counter-sunk screws from the outside of
the basement block. Slots are formed in the exposed surface of these metallic
terminal blocks to receive the electrical wires which are left uncovered or unin-
sulated at these parts, and the wires are secured and held in place by screws tapped.
into the centre of each slot. The flexible insulated wires leading the electrical
current to lamps or translating apparatus in the apartment, would or may have
their upper uncovered ends screwed or attached to these terminal blocks. But by
a-preferable arrangement, where electrical safety fuses are desired, an open or
hollow longitudinal recessed, space would be formed in the porcelain base block,
between the longitudinal channels of the main wires, in which two additional
metallic terminal blocks would be placed transversely and similarly screwed or
fitted. The ends of the fusible wires or plugs would respectively enter holes or
grooves in the main wire terminal blocks and the additional blocks, and be secured
by binding screws; while the ends of the flexible wires leading to the lamps would
be secured by binding screws to the said additional terminal blocks. Vertical
longitudinal projecting walls or partitions of porcelain or other material forming
the base block intervene between the additional terminals and the main wires, so
as to prevent the possibility of the fusible wires igniting or the insulation of the
main wires being destroyed or any "flashing" taking place. The whole of the
electrical connections would be enclosed by a lid or cover preferably of cylindrical
shape and formed of porcelain or other insulating material, which would be screwed.
on to the screw threaded vertical surface of a cylindrical segmental wall formed
on the basement block; and an orifice would be formed in this cover for the.
passage of the flexible hanging wires leading to the lamps. To prevent undue
stress on the flexible connections on the ceiling "rose," a rubber cone would be
slipped on the flexible wires before passing through the orifice in the cover: This
cone would have a central hole of such dimensions as will enable it to cling tightly
to the smallest flexible wire. The cone would also be cut lengthwise through half
its diameter to admit of larger flexible wires being used. The electrical current
would thus be tapped from one of the main wires and pass through one of the first
terminal biocks either direct to the flexible wires leading to the lamps or through

page_text: said terminal block and the additional block and fusible wire to the flexible wires,
and return through the corresponding fuse, wires, and blocks to the other main wire,
or vice versa.
By these improvements the sectional area of the main or sub-main wires is main-
tained up to the fuse, no intermediate wires of smaller gauge being required to
connect fuse with maiu wires.
Dated th 10 1
1
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.
..
COMPLETE SPECIFICATION.
Improvements in and relating to "Roses" or, Electrical Connections
for the Ceilings of Buildings or Structures.
We, WILLIAM MARTIN HADDOW, and JOHN SMITH HUTCHISON, both of
114 Berkeley Street, Glasgow, Lanarkshire, Electricians, do hereby declare the
nature of our invention, and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement in writing
that.is to say :-
This invention has reference to and comprises a new mode of and means or
arrangement and combination of the parts. of "
"3
roses or electrical connections
specially suitable for the ceilings of the rooms of buildings, ships, or other
structures, whereby the main or sub-main. wires will be tapped by terminal blocks
fixed to the base, and the joints or electrical connections heretofore used in these
ceiling "roses" dispensed with.
66
""
And in order that our said invention and the manner of performing or carrying
the same into effect or practice may be properly understood, we have hereunto
appended an explanatory sheet of drawings in which Figure 1 is a plan view of a
ceiling rose as constructed and fitted with electrical connections in accordance
with one arrangement of our improvements. And Figures 2 and 3 are transverse
sections at right angles to each other as taken on the lines 2-2 and 3-3 respec-
tively on Figure 1. While Figure 4 is a detached sectional elevation of the screw
cover for the "rose."
66
:
Referring to these drawings:-The improvements consist in forming the ceiling
rose "of a base block A preferably of square shape, of porcelain, earthenware,
or other insulating material, with a plain Hat upper surface 'A' which would be
screwed or secured next to the ceiling of the apartment where the electrical
connections are to be made. The under part or surface of this base block would
be formed with two longitudinal channels or grooves a, a', along which the main or
sub-main electrical wires b, b' would pass. A transverse terminal block B, B,
preferably of oblong shape of brass or other electrical current conducting metal
would be fitted across or partly across each of these channels a, a', preferably near
the centre of their length and be secured by countersunk screws B1, B... Slots B², B',
are formed in the exposed surface of these metallic terminal blocks B, B to receive
the electrical wires b, b', which are left uncovered or uninsulated at these parts,
and the wires b, b¹, are secured and held in place by screws b², 63, tapped into the
centre of each slot B2, B². The flexible insulated wires leading the electrical
current to lamps or translating apparatus in the apartment, would or may have
their upper uncovered end screwed or attached to these: terminal blocks B, B.
But by a preferable arrangement, where electrical safety fuses are desired, an open
or hollow longitudinal recessed space would be formed in the porcelain base
block A, between the longitudinal channels a, a', of the main wires 6; 6', in which
two additional metallic terminal blocks. C, C, would be placed transversely' and
similarly secured by countersunk screws C¹, C. The ends of the fusible wires
as c, c, (or it might be plugs) would respectively enter holes or grooves like B
in the main wire terminal blocks B, and the additional blocks C, and be secured

page_text: by binding screws c³, c², and c³, c; while the ends of the flexible wires d, d',.
leading to the lamps, would be secured by binding screws d², d, to the said
additional terminal blocks C, C. The whole of the electrical connections would
be enclosed by a lid or cover E, preferably of cylindrical shape, as shown in
Figure 4, and formed of porcelain or other insulating material, which would be
threaded at E' and screwed on to the screw threaded vertical surface A2 of a
cylindrical segmental wall formed on the basement block A.; and an orifice E³
would be formed in this cover E for the passage of the flexible hanging wires d, d',
leading to the lamps. To prevent undue stress on the flexible connections on the
ceiling "rose," a rubber cone would be slipped on the flexible wires d, d', before
passing through the orifice E2 in the cover E. This cone would have a central
hole of such dimensions as will enable it to cling tightly to the smallest flexible
wire. The cone would also be cut lengthwise through half its diameter to admit
of larger flexible wires being used. The electrical current would thus be tapped
from one of the main wires b, or , and pass through one of the first terminal
blocks B, B, either direct to the flexible wires d or d' leading to the lamps, or
through said terminal block B, and the additional block C and fusible wire c or c'
to the flexible wires d or d' and return through the corresponding fuse wires, and
blocks to the other main wire, or vice versa.
By these improvements the sectional area of the main or sub-main wires bor b
is maintained up to the fuse, no intermediate wires of smaller gauge being required
to connect fuse with main wires.
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.
we claim is :-
"
First. The herein described mode of forming "roses or electrical connections
for the ceilings of buildings or structures with a base block of insulating material
formed with wire channels or grooves, and separate metal or equivalent channel
terminal blocks for the main wires, and the fuse and flexible wires or plugs,.
substantially as and for the purposes herein described in reference to and by way
of application shown in the accompanying drawings.
"
Second. In ceiling " roses or electrical connections the forming of a base block
of insulating material in combination with longitudinal and transverse terminal
blocks or plates for the main wires and the fuse and flexible wires or plugs,.
substantially as herein described in reference to and shown in the accompanying
drawings.
"
Third. In ceiling "roses or electrical connections, the combination with a base
block of insulating material of terminal blocks or plates formed with channels for
the main wires, substantially as herein described in reference to and shown in the
accompanying drawings.
Dated the 5th April 1893.
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.