Improved Device to be used in Cleaning Lamp Glasses.
Year: 1898

page_text: Date of Application, 21st Apr., 1898
Complete Specification Left, 23rd Jan., 1899-Accepted, 21st Apr., 1899
Improved Device to be used in Cleaning Lamp Glasses.
I, EDWARD SANSOM, of 5, Tetcott Road, London, Gentleman, do hereby declare
the nature of this invention to be as follows:-
This invention, relates to an improved device to be used in cleaning lamp
glasses, and my invention consists in a device, substantially as hereinafter
described by means of which device the bulbous or enlarged part of a lamp
glass may be cleaned as readily as the cylindrical part.
In carrying out my invention, I employ to rods or equivalents one of which
rods is hollow to a sufficient extent so as to permit the other rod to be moved
telescopically therein.
I also employ a number-preferably 4-flat springs which may be made of
metal, whalebone, horn, or any other suitable material, and I fix one end of each
said springs to one of the rods, and the other end of each said springs I fix to
the other rod, the arrangement being such that if now the two rods be "teles-
coped" or moved towards each other the springs will be caused to bulge outward
to an extend corresponding more or less to the distance through which the rods
have been moved towards each other. For the purpose of cleaning a lamp glass,
it is only necessary to first wrap a duster or cloth fairly loosely around the
springs, the device is then passed through the glass until one end projects at
each end of the lamp glass, and the springs are then caused to bulge outward
as described, whereby the cloth or duster will be pressed against the inside of
the glass whether it be at the cylindrical part or at the bulbous or enlarged
part. The glass is then cleaned by being turned in the usual way.
I wish it to be understood that I do not confine myself to any particular con-
struction or shape of the different parts, nor to any material of which they may
be made, for example instead of the two rods referred to, I may employ one rod
and one tube or sleeve fitting more or less snugly on said rod. I may also
provide an outer case to enclose the said two rods, or the rod and sleeve, said
outer case being of course formed with suitable slots to permit the springs to bulge
through. Further, if desired, I may provide a spiral or other spring to return
the flat springs to their normal position, when one of the rods is released.
Dated this 19th day of April 1898

page_text: improved Device to be used in Cleaning Lamp Glasses.
I, EDWARD SANSOM, of 5, Tetcott Road, London, Gentleman, 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:-
This invention relates to an improved device to be used in cleaning lamp
glasses, and my invention consists in a device, substantially as hereinafter
described, by means of which device the bulbous or enlarged part of a lamp
glass may be cleaned as readily as the cylindrical part.
In order that my invention may be readily understood, reference is made to
the accompanying drawing in which one form of my invention is illustrated in
sectional side elevation in Fig. 1, and a detail hereinafter referred to in Fig. 2.
In carrying out my invention I employ two rods A, B, or equivalents, one of
which rods B is hollow at 6 so as to receive one end of the rod A and permit
said two rods to be "telescoped" to a sufficient extent. I also employ a number
of springs a which may be made of metal, whalebone, horn, vulcanite, or any other
suitable material and which normally are about flat or straight, and which are
so arranged that, in "telescoping" the two rods A, B, the said springs will be
bent or bulged out about as shown in Fig. 1, the amount of the bulging depending
upon the extent of the "telescoping."
Said springs may be attached at one end to the rod A and at the other end to
the rod B, or instead of fixing said springs may form the rods with grooves
say as shown at a¹ in Fig. 2 into which I insert the ends of said springs without
fixedly attaching them to the rods but I do not confine myself to any particular
manner or means for retaining the ends of the springs in position.
For the purpose of cleaning a lamp glass, it it only necessary to first wrap
a duster or cloth fairly loosely around the springs a, the device is then passed
through the lamp glass until one end of the device projects at each end of said
glass, the rods are then "telescoped" so as to cause the springs to bulge outward
as described whereby the cloth or duster will be pressed against the inside of
said lam glass whether it be at the cylindrical part or at the bulbous or enlarged
part. The glass is then cleaned on the inside by being turned or trundled in the
usual way.
If desired I may enclose the rods A and B in an outer case or cylinder C which
is formed with slots so as to permit the springs a to pass through about as shown
and instead of a rod B I may use a tube or sleeve.
Further, for the purpose of assisting to automatically return the springs a
to their normal or more or less flat position, I may employ a spring such as d
which will push the rod A into the position shown in dotted lines the moment it
is released..
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. A device adapted to be used for cleaning lamp glasses and consisting of
rods A, B or equivalents adapted to be "telescoped" and springs a which are
caused to bulge outward when said rods are telescoped substantially as described
and illustrated.
2. In a device adapted to be used for cleaning lamp glasses springs a adapted
to be bulged or bent outward for the purposes and substantially as set forth.
3. A device adapted to be used for cleaning lamp glasses and consisting in
combination of rods A, B or equivalents adapted to be telescoped springs a

page_text: which are caused to bulge outward when said rods or equivalents are telescoped,
an outer casing C enclosing the rods or equivalents A, B, and having slots to
permit the springs a to pass through, and a spring d all adapted, arranged and
operating for the purposes and substantially as described and illustrated.
Dated this 23rd day of January 1809
By his agents,
EDWARD SANSOM,
Horn, Son & Co.,
151, Strand (next to Somerset House), London.