Improvements in Lamps for Lighting Pianofortes, Harmoniums, and other Purposes.
Year: 1889

page_text: Date of Application, 14th Aug., 1889
Complete Specification Left, 5th May, 1890-Accepted, 14th June, 1890
PROVISIONAL SPECIFICATION.
Improvements in Lamps for Lighting Pianofortes, Harmoniums, and
other Purposes.
I, WILLIAM HILLMAN 10 Brackley Terrace Chiswick Middlesex Engineer, do
hereby declare the nature of this invention to be as follows:-
The object of my Invention is to effect certain improvements in lamps, reflectors
and brackets for carrying same, for lighting pianofortes, harmoniums, writing desks,
pulpits and other purposes, especially applicable where the light is required to be
concentrated.
The object aimed at in these improvements is to construct cheaply and efficiently a
good lamp and reflector for the use and purposes herein named and which may be
fairly described to consist of a metal or other clip bracket so arranged as to be fitted
by spring tension, adjusting screws or other means to any part of the frame work of
either pianofortes, harmoniums, or other objects required to be lighted and devised to
carry a suitable socket or recess to receive the stem of a second bracket, or may be
arranged to receive a standard or other sliding rod or device for raising or lowering
the said lamp. The brackets I prefer to make of strip metal, as also the clips, the
forms of which are devised to suit the various requirements, but they may be cast in
art designs when so desired.
The lighting power of the lamp itself may be fed or consist of an ordinary candle
carried in any suitable manner, or may consist of either an oil or gas burner, or
the lamp bracket may be arranged to accomodate an incandescent electric lamp.
For some purposes I prefer to construct the reflector of special form which has
been arrived at after considerable experimenting and partakes of the form of a cone
with concave and convex surfaces, or corrugations suitably formed and arranged so as
to concentrate or distribute the light as may be required.
Dated this 14th day August 1880
COMPLETE SPECIFICATION.
Improvements in Lamps for Lighting Pianofortes, Harmoniums, and
other Purposes.
WILLIAM HILLMAN 10 Brackley Terrace Chiswick Middlesex, Engineer, 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 has reference to improvements in lamps, reflectors, and brackets for
lighting pianofortes harmoniums, writing desks, pulpits platforms, stages and the
like, especially applicable where a somewhat concentrated light is required. The
object is to effect certain improvements in the construction of such lamps and
reflectors, cheaply and effeciently, and may be fairly described to consist of a metal or
other clip bracket so arranged as to be fitted by spring tension, pinching screws or
other means to any part of the frame work of the object desired to be lighted, which
[bracket or device is formed to accomodate the stem or holder of a second bracket
or standard for carrying the reservoir or lamp, which may be further arranged to
slide up and down same, and retained in position by a spring or set screw as
required.
The brackets or clips may be constructed of strip metal to suit the various require-
ments, or they may be cast in art designs as desired.

page_text: The lighting power of the lamp may consist of a simple candle, carried in any
suitable manner or may consist of either an oil or gas flame, or further, may be
arranged to accomodate an incandescent electric lamp.
The reflectors for such purposes I construct of special form, consisting of a portion
of a cone whose sides present various angles to its axis, and devised with convex and
fluted surfaces or corrugations, the object of which being to concentrate or distribute
(as the case may be) the light on the object as desired, for the various purposes here-
inafter more fully described.
The annexed drawings represent the lamp, reflectors and brackets, constructed in
accordance with my invention, and shewn in detail for some uses and purposes to
which the same may be applied.
Figures 1 and 2. represents the lamp complete suitable for general purposes.
Figures 3 and 4 represents the elevation and plan of the lamp reservoir suitable for
pianofortes when desired to be hidden from view.
Figures 5 and 6 represent the application of a spring sliding bracket designed to
accomodate a small pipe and burner when employing a gas flame.
Figure 7 represents the application of a small electric incandescent lamp for the
same object.
Figure 8 shews a simple method of carrying an ordinary candle.
Figures 9 to 15 represent various forms of clip, spring and other brackets for
carrying the stem or standard for supporting the lamp.
Figure 16 represents one of the methods of fixing the lamp to pianofortes and
the like.
Figure 17 represents the application of reflectors and lamps to theatrical and other
stage platforms.
Figures 18 and 19 represent the application of the lamps as fitted to shop fronts and
for similar purposes. A, Figures 1 and 2 represent the elevation and plan of the
reflector, a, a are the corrugations or fluted surfaces. B is the reservoir for lamp
when employing paraffin, colza, or other liquids, b is the filling cap, C is the stem or
standard for carrying the lamp. D is the reflector bracket engaging with a spring
fixed to the reflector, 1 represents the passage tube passing through lamp reservoir B,
and also containing a spring to bear against the stem or standard C, the upper portion
of this tube may be fitted by a thumb screw or fly-nut for fixing the lamp in any
required position. The oil reservoir B Figures 3 and 4 are designed to be placed
within the pianoforte or other case out of sight and formed with a long branch pipe b
for carrying the wick. from burner to oil, a suitable clip spring is arranged on the
underside of the branch pipe for fixing or securing to frame work. E represents the
wick burner. When using gas the reservoir is replaced by a sliding bracket b
.Figures 5 and 6 carrying the pipe F and burner f the gas may be supplied by means
of a flexible rubber or other tube f' while the flame is regulated by the tap f. In
lieu of gas a small electric incandescent lamp G may be fixed to the gas. pipe F
Figure 7 or the socket plate fs Figure 8 carrying the spike f* for supporting the
candle may be fixed to the pipe F. Figures 9 to 15 represent various forms of
spring and other clip brackets for carrying the stem or standards of the lamps and
explain themselves.
Figure 16 represents the application of the lamp to pianofortes, the object being
to light the whole of the key-board and music, without forming shadows, at the same
time shading the light from the operators' eyes.
Figure 17 explains the adaption to theatre stages, the reflectors while lighting the
stage completely shade the foot lights from the audience.
Figures 18 and 19 represent the lamps and reflectors fitted to shop fronts, in which
case I sometimes employ glass doors H Figure 18, to the underside of reflectors A.
In accordance with my invention I am enabled to construct cheaply and efficiently-
and by means of a small consumption only of lighting power or material; lamps and
reflectors for the uses and purposes herein named, particularly where a somewhat
concentrated light is required.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The arrangement or combination of a lamp with its reflectors and brackets for
efficiently lighting the various objects herein described and set forth.
2. The adaptability of the arrangement or combination of such lamps to the uses
and purposes for the objects as set forth in respect to Figures 1 to 8 inclusive.
3. The arrangement of a reflector formed with flated surfaces or corrugations in
combination with the brackets and rods, together with the various methods of
lighting substantially as and for the purposes set forth in respect to Figures 16 to 19
inclusive.
4. The general arrangements or combinations of parts and their uses as fully
described and set forth.
Dated this 5th day of New 1800
WILLIAM HILLMAN.