Improvements in Ships' and other Lamps.
Year: 1891

page_text: Date of Application, 23rd Mar., 1891
Complete Specification Left, 23rd Dec., 1891-Accepted, 6th Feb., 1892
PROVISIONAL SPECIFICATION.
Improvements in Ships' and other Lamps.
I THOMAS PASKIN, of 88, Ravenhurst Street, Birmingham, in the County of
Warwick, Lamp Maker, do hereby declare the nature of this invention to be as
follows --
My invention has reference primarily to lamps used on board ship, but is also
applicable to lamps used for any similar purpose, especially where such lamps
are exposed to the danger of breakage and where they are required to be suspended
in an elevated position. I will describe my said invention in connection with a
ship's lamp.
Ships' lamps are usually provided with guards formed of iron rods, so constructed
as to protect the globe in which the light is contained and thereby minimize the
risk of breakage. The said guards have hitherto been fixedly attached both to
the foot and chimney of the lamp frame by rivetting or the like, thereby
permanently enclosing the globe. In the event of the globe becoming broken, the
method of construction renders it impossible to be replaced during the voyage, the
operations requisite to the replacing of the globe necessitating the employment of
a lamp maker. In the old form of ship's lamp there is, further, no provision for a
reflector whereby the light may be thrown down on the deck.
The objects of my invention are to remedy these imperfections and deficiencies
and to construct a ship's lamp in such a manner that a broken globe may be easily
and expeditiously replaced by a new one by any unskilled person, and also to
provide such lamps with a suitable means for reflecting the light downwards upon
the deck. These objects I attain in the following manner.
In constructing the guard above referred to, I connect the lower ends of the
vertical iron rods forming the same to the foot of the lamp, and leave the upper
ends disconnected, the guard being kept in position and shape by the horizontal
band or rod which passes round and is rivetted to the said vertical rods at or about
the middle. I bend the vertical rods into a circular or spherical form so as to
follow the shape of the globe, until within a short distance of their upper
extremities, when I cause them to take a straight vertical direction, which straight
portion is screwed, that is, provided with a worm or thread. The upper part of
the lamp, to which the guard is to be attached as hereinafter described, consists of
a plate or disc, slightly concave on its under side, in the centre of which is fixed
the chimney. This plate or disc is of a greater diameter than the globe and is
perforated at four or more points near its circumference corresponding with the
vertical rods of the guard. When the globe is passed between the disconnected
ends of the vertical rods of the guard, and placed in position, the plate or disc
above described takes upon the upper rim of the said globe, the perforations coming
opposite to and a little above the screwed ends of the said vertical rods. I next
employ sockets having an internal or female screw, each being provided with a
flange which, while allowing the pipe or socket to pass through the hole or per-
foration in the said disc or plate, takes its bearing upon the said disc or plate, so
that the said screw-sockets may engage with the screwed ends of the vertical rods
of the guard, and by being rotated, securely bind all the parts of the lamp together.
The upper extremities of the vertical guard rods are sufficiently far apart to admit
of the globe being freely passed into position or taken out. By this means not only.
may a broken globe be readily replaced, but the globe may be removed for the
purpose of cleaning.
The socket or pipe containing the female screw and the screwed portions of the
guard rods are sufficiently long to be adjustable to any variation of size in
1 "

page_text: The plate or disc further serves the purpose of a reflector, as hereinbefore
referred to, the under or concave side being either painted white or enamelled as
preferred.
•
By the term "vertical rods" employed above, I mean those rods which, although
bent into a curved form, have a more or less vertical tendency.
Dated this 21st day of March 1891.
THOMAS PASKIN.
COMPLETE SPECIFICATION.
Improvements in Ships' and other Lamps.
I, THOMAS PASKIN, of 88, Ravenhurst Street, Birmingham, in the County of
Warwick, Lamp Maker, 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 has reference principally to lamps used on board ship, but is also
applicable to lamps used for any similar purpose, especially where such lamps are
exposed to the danger of breakage and where they are required to be suspended
in an elevated position. I will describe my said invention in connection with a
ships' lamp.
Ships' lamps are usually provided with guards formed of metal rods, so con-
structed as to protect the globe in which the light is contained and thereby
minimize the risk of breakage. The said guards have hitherto been fixedly
attached both to the foot and chimney of the lamp frame by rivetting or the like,
thereby permanently enclosing the globe. In the event of the globe becoming
broken, the method of construction renders it impossible to be replaced during the
voyage, the operations requisite to the replacing of the globe necessitating the
employment of a lamp maker. In the old form of ships' lamp there is, further, no
provision for a reflector whereby the light may be thrown down on the deck.
The objects of my invention are to remedy these imperfections and deficiencies
and to construct a ships' lamp in such a manner that a broken globe may be easily
and expeditiously replaced by a new one by any unskilled person, and also to
provide such lamp with a suitable means for reflecting the light downwards upon
the deck. These objects I obtain in the manner hereinafter described and as set
forth in the accompanying sheet of drawings.
Figures 1 and 2 are elevation and plan respectively of a ships' lamp having my
improved guard and reflector arranged thereon.
When constructing the guard above referred to, I connect the lower ends A
of the vertical metal rods A' forming the same to the foot B of the lamp, and leave
the upper ends A² disconnected, the guard being kept into position and shape by
the horizontal band or rod C which passes round and is rivetted to the said vertical
rods at or about the middle. I bend the vertical rods A¹ into a circular or
spherical form, so as to follow the shape of the globe D until within a short
distance of their upper extremities, when I cause them to take a straight vertical
direction, which straight portion is screwed, that is, provided with a worm or
thread. The upper part of the lamp, to which the guard is to be attached, as
hereinafter described, consists of a plate or disc E, slightly concave on its underside,
in the centre of which is fixed the chimney F. This plate or disc E is of a
diameter than the globe, and is perforated at four or more points near its circum-
ference corresponding with the vertical rods of the guard. When the globe is
passed between the disconnected ends of the vertical rods of the guard and placed
in position, the plate or disc above described takes upon the upper rim of the said
globe, the perforations coming opposite to and a little above the screwed ends of
the said vertical rods. I next employ sockets G shown in detail part in section
at Fig. 3 having an internal or female screw, each being provided with a flange G'
for allowing the pipe or socket portion only to pass through the hole or perforation
greater

page_text: in the disc or plate, so that the said screw sockets may engage with the screwed
ends of the vertical rods of the guard, and by being rotated, securely bind the
various parts of the lamp together.
The upper extremities A³ of the vertical guard rods A' are sufficiently far apart
to permit of the globe being freely passed into position or taken out. By this
means not only may a broken globe be readily replaced, but the globe may be
removed for the purpose of cleaning. The socket or pipe containing the female
screw, and the screwed portions of the guard rods are sufficiently long to be
adjustable to any variation of size in the globes.
The plate or disc E further serves the purpose of a reflector, as hereinbefore
referred to, the under or concave side being either painted white or enamelled as
preferred.
Figures 3, 4 and 5 are details of the construction of my lamp guards.
On Sheet 2 Figure 6 is an elevation of my improved lamp showing another
method I sometimes adopt for carrying my invention into effect.
Figure 7 is an elevation of the same with the upper portion or cap disconnected
from the frame for the purpose of permitting the ready removal of the globe.
The reflector disc E' I form upon the cap F¹ as hereinbefore described and I
connect it to guard rods such as A*, A by means of hook like ends a formed upon the
upper ends of the rods A', A³ together with a hinged bow a³ formed upon one
rod A³ for carrying the ring or staple projection e.
I construct the reflector disc E out of any suitable metal, and I enamel, paint,
plate, nickel, or otherwise produce a polished under reflecting surface in any
ordinary manner, making the cap either separate or in one with the disc as may be
desired.
Within the guards A', A³ I form recesses or grooves a*, into which the central
ring C may be sprung when the globe placed in position as shown in Figure 6.
The central swivelling ring C¹ I secure to the guard rod A³ by means of a loop or
ring H which I provide upon the rod A³.
I connect the vertical guard rods to the base B by rivets or screws as before
described, or I sometimes allow them to enter freely into holes, while the hook
ends I reverse as shown in Figure 8.
By the term "vertical rods" employed above, I mean those rods which, although
bent into a curved form, have a more or less vertical tendency.
I do not limit the application of my invention to any particular form of globe
or to any peculiar kind of cap or burner, but I employ the same system of
detachable guards and cover plate as herein described to suit any kind of globe or
any form of cap or burner.
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 :-
(1) The construction of lamps with detachable guards and reflectors sub-
stantially as and for the purposes hereinbefore described and as illustrated on
Sheet 1 of the accompanying drawings.
(2) The combination and arrangement of ships' and other lamps having guards
with their lower ends attached to the base of the lamp, while their upper ends
carry a movable shield plate or deflector substantially as and for the purposes
herein described.
(3) In ships' and other lamps the application and arrangement of a movable
cover plate and deflector substantially as and for the purposes hereinbefore
described.
A
MARKS & CLERK,
13, Temple Street, Birmingham, Agents for the Applicant.