IMPROVEMENTS IN LAMPS FOR COLLAPSING OR PROVISIONAL SPECIFICATION
Year: 1882

page_text: LETTERS PATENT to Walter Henry Bulpitt, trading as Bulpitt and Sons of
Birmingham in the County of Warwick, Lamp Manufacturer and Tin Plate
Worker for an Invention of "IMPROVEMENTS IN LAMPS FOR COLLAPSING OR
PROVISIONAL SPECIFICATION left by the said Walter Henry Bulpitt at the
Office of the Commissioners of Patents on the 12th August 1882.
WALTER HENRY BULPITT trading as Bulpitt and Sons of Birmingham in the
County of Warwick, Lamp Manufacturer, and Tin plate Worker "IMPROVEMENTS
IN LAMPS FOR COLLAPSING OR PACKING TOGETHER INTO A SMALL COMPASS "
My invention has for its object improvements in lamps for collapsing or packing
together into a small compass for shipping purposes and also that they may be
stowed away on board ship or in other places in less space and more conveniently.
In some kinds of lamps the cost of Shipment is almost as much as the cost of
manufacture which seriously interferes with Foreign trade. My invention is
intended to meet this difficulty by providing a strong lamp which will either
collapse or readily divide into parts.
The first part of my invention relates to lamps known as "Anchor" or "Cabin "
lamps but which are suitable for many analagous purposes-For storing or packing
the glass which is nearly a globe with open base and top, as viewed apart from the
complete lamp is removed entirely from the frame which I easily effect in the
following manner. The rods which encompass the glass and run in line with
the axis of the lamp I make in two lengths by dividing them at or near the centre
of their length which would be practically the centre" or equatorial "-line of
the globe. At this division part of the radial or protecting rods I carry round two
rings to unite the rods together through which I pass pins or bolts, nuts or other
convenient means for coupling the two uniting rings together. In taking the
glass out I only require to take out the pius and the top and bottom of the lamp
are at once separated and the glass removed. By further taking out the oil
TD 073

page_text: reservoir and placing inside the casing the lamp is brought into a very small
compass. The position for dividing the rods and carrying around the connecting
uniting rings is regulated in a great measure by the height of the lantern and its
formation as well as by the shape of the glass. By drawing together the two said
rings the glass is held tightly in its position by the bottom edge of the cap and
the upper edge of the oil reservoir case. The before mentioned rods may be made
Indeed in some cases the rods would
to come apart from the top and bottom.
be connected to one single ring in alternate positions the screws or other fastenings
coming alternately above and underneath the single ring thus securing the top and
bottom to the glass.
The second part of my invention has reference more particularly to the lamps
known as stable lamps but it also applies to street and other lamps where the
frame or casing is square or oblong and it consists principally in so constructing
the angles of the sides and ends so as to form pivots to unite them together. By
this means immediately the top and bottom of the lamp is removed the sides come
together like the closing up of any parallelogram. The pins for closing the door of
the lamp being loose, by withdrawing it the sides of a lamp of various shapes such
as hexagon or octagon could be brought quite flat without disturbing the general
structure. The sides are united to the top and bottom when put together in
various ways-One simple method is by means of flexible tongues on the sides
which go through suitable openings in the top and bottom part where they are
turned over locking the whole together. In other cases pins on the sides and nuts
are used and in others snugs are formed on the sides for receiving the pins. The
top and bottom are formed with a socket the shape of the lamp when together to
receive the body so that the pins, tongues or other fastenings have only to keep
the lamp together the shape being maintained by the said sockets.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Walter Henry Bulpitt in the Great Seal Patent Office on the
12th February 1883.
WALTER HENRY BULPITT trading as Bulpitt and Sons of Birmingham in the
County of Warwick, Lamp Manufacturer and Tin Plate Worker
" IMPROVEMENTS
IN LAMPS FOR COLLAPSING OR PACKING TOGETHER INTO A SMALL COMPASS
"
My Invention has for its object improvements in lamps for collapsing or packing
together into a small compass in order that they may be packed together closer
and in less compass for shipping purposes and also that they may be stowed away
on board ship or in other places in less space and more conveniently In some
kinds of lamps the cost of shipment is almost as much as the cost of manufacture
which seriously interferes with Foreign Trade. My invention is intended to meet
this difficulty by providing a strong lamp which will either collapse or readily
divide into parts.
"
The first part of my invention relates to lamps known as "Anchor ог "Cabin "
lamps but which are suitable for many analagous purposes-For storing or packing;
the glass which is nearly a globe with open base and top, as viewed apart from
the complete lamp, is removed entirely from the frame, which I easily effect in the
following manner-The rods which encompass the glass and run in line with the
axis of the lamp and which are called quarter guards I make in two lengths by
dividing them at or near the centre of their length which would be practically the
centre or equatoral "-line of the globe called centre ring guards. At this.
division part of the radial or protection rods I carry round two rings to unite the.
rods together through which I pass pins or bolts and nuts or other convenient
means for coupling the two uniting rings together. In taking the glass out I only.
require to take out the pins and the top and bottom of the lamp are at once
separated and the glass removed. By further taking out the oil reservoir and
placing inside the casing the lamp is brought into a very small compass. The
position for dividing the rods and carrying round the connecting uniting rings is
regulated in some measure by the height of the lantern and its formation as well
as by the shape of the glass. By drawing together the two said rings the glass
is held tightly in its position by the bottom edge of the cap and the upper edge.
of the oil reservoir case. The before mentioned rods may be made to come apart
from the top and bottom. Indeed in some cases the rods would be connected to
one single ring in alternate positions the screws or other fastenings coming
alternately above and underneath the single ring thus securing the top and bottom
to the glass.
The second part of my invention has reference more particularly to the lamps
known as Stable lamps but it also applies to street and other lamps where the
frame or casing is square or oblong and it consists principally in so constructing
the angles of the sides and ends as to form pivots to unite them together. By this.
means immediately the top and bottom of the lamp is removed the sides come
together like the closing up of any parallelogram. The pin for closing the door of
the lamp being loose, by withdrawing it the sides of a lamp of various shapes
such as hexagon or octagon could be brought quite flat without disturbing the
general structure. The sides are united to the top and bottom when put together
in various ways-One simple method is by means of flexible tongues on the sides.
which go through suitable openings in the top and bottom part where they are
turned over locking the whole together. In other cases pins on the sides and nuts
are used and in others snugs are formed on the sides for receiving the pins. The

page_text: top and bottom are formed with a socket the shape of the lamp when together to
receive the body so that the pins, tongues or other fastenings have only to keep
the lamp together the shape being maintained by the said sockets.
In order that my invention may be more clearly understood and carried into
practice with greater ease I have appended hereunto two sheets of drawings.
N° 1 Sheet illustrates the first part of my invention upon which :
Figure 1 is a general front elevation showing the anchor or Cabin lamp with all
the parts screwed together as it would be used in practice.
Figure 2 is a section through the upper part of the lamp showing how the upper
quarter guard rods are secured to it.
Figure 3 is a section through the lower part of the lamp showing how the lower
quarter gaurd rods are connected thereto.
In these three Figures A, B, C and D are the upper quarter guard rods connected
at their upper ends to part M. by nuts d¹, c', and 6¹ Figure 2 with a similar nut a¹ for
the A rod which it is not necessary to show. The lower ends of these upper guard
rods pass through the upper centre guard ring E, E and are secured by the
nuts e, e¹ to that ring against the shoulders on the several rods. The lower
quarter guard rods F, G, H, are connected in a similar manner to the lower part N
by the nuts f', h¹, j' and g¹ which is not however shown; and the upper ends of
these lower guard rods are secured to the lower centre ring guard K by the nuts k¹.
The centre ring guards E and K are secured together by the screws, pins or
studs which are fast with ring K and which pass through the centre ring E
where they are fastened by nuts e². It will thus be seen that by the removal of
the nuts ethe upper and lower parts may be separated from the glass P. It will
also be evident that the top and bottom quarter guard rods may be removed
which brings the lamp into still less compass, and the glass can be easily replaced
when broken and the screws k² allow of variation in the size of the glasses.
One modification of the plan illustrated by these three Figures would be to have
one centre ring quard instead of two with the lower and upper rods passing
through the centre ring alternately i.e there would be eight holes equally divided
around the single centre ring gaurd and eight nuts, four for the top quarter gaurd
rods, and four for the bottom quarter gaurd rods.
The second part of my invention is illustrated on the drawings Sheet 2 :-
Figures 4 and 5 are elevations of a square stable lamp.
Figure 6 is a plan of the bottom of the same removed from the body and
Figure 7 is a plan looking upon the top of the lamp and Figure 8 is a plan of the
body partially collapsed.
This lamp is made up with four corner joints 1, 2, 3 and 4. The rod r¹ comes
out and allows the sides to open out flat for packing; is the handle for opening
the door. The top piece S and bottom T are made removable in the following
manner -At the top of the body there are flexible tongues 81 which pass
through corresponding openings in the top S and are then turned over flat as
shown at 83 Figure 7 and partly turned at
by the tonquest' passing through openings t
round to secure the bottom in its place.
Figure 4. The bottom T is secured
in the bottom T where they are bent
One modification of this lamp is to hinge the door upon one of the corner pins or
pivots merely cutting away the pieces t3 and 83 to allow the door to open in which
case the four sides may be opened out quite flat instead of being collapsed as shown
by Figure 8 and they would then pack quite flat one upon another.
Another modification is shown in general elevation by Figure 9 and in plan by
Figure 10 and in its partially collapsed condition by Figure 11 and is opened out
flat by Figure 12.
In this modification the door W forms just one side of the hexagon lamp and
thus there are only five tonques to unite the top U and sides and five tonques v',
v², v³, v¹ and v³ to unite the bottom V and sides otherwise the top and bottom
comes apart from the body just as in the case of the previous modifications for
these stable and other similar lamps. Indeed Figure 5 shows the top and bottom

page_text: slightly drawn apart from the body of the lantern. There are of course in this
hexagon lamp six pivots y', y³, y³, y', y³ and y' which is the moveable one as it
lifts by handle y' to unfasten the door W as seen in Figures 11 and 12.
It will be clearly evident to anyone that these lamps may be made octagon or of
other shape or figure quite conveniently and to fold up.
Having now ascertained my said invention of improvements in lamps for
collapsing or packing together in a sinall compass and modifications showing how
the same may be carried into practical effect I would have it understood that what
I claim is.
:-
First The Anchor or Cabin lamps with the removeable quarter guards and
centre rings substantially as herein set forth.
Second-The Stable lanterns with pivoted angles and removeable tops and
bottoms substantially as herein set forth.
In witness whereof I the said Walter Henry Bulpitt have hereunto set my
hand and seal this ninth day of February in the year of our Lord one
thousand eight hundred and eighty three.
WALTER HENRY BULPITT (L.S.)