Year: 1888

page_text: JOSEPH WILLIAMS LOVIBOND 20 St. Ann Street, Salisbury, Tintometer' Manu-
facturer do hereby declare the nature of this invention to be as follows:-
My improved Kaleidoscope is as follows, in place of, or in addition to the glass
disk at the bottom of the ordinary Kaleidoscope, I make use of a disk of coloured
glass, or segments of coloured glass, with or without whito glass, arranged radially or
otherwise, behind or in front of which is a circular or other shaped diaphragm rolling
or moving around or across the field of view, which diaphragm is pierced with apertures
of various forms.
The ordinary pieces of glass or other moving bodies may or may not be combined
with these improvements.
Dated this Eighth day of Norah 1988
JOSEPH W. LOVIBOND,
26, St. Ann Street, Salisbury.

page_text: I, JOSEPH WILLIAMS LOVIBOND, of 26, St. Ann Street, Salisbury, in the County of
Wilts, Tintometer Manufacturer, 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 relates to improvements in that class of optical instrument known as
kaleidoscopes, and particularly those used for designers' purposes; and it has for its
object to enable a great variety of combinations of figures and colors to be obtained,
both the figures and colors being to a certain extent predetermined and being inde-
pendently variable and capable of reproduction at will in contradistinction to the
fortuitous character of the combinations of design and color formed by the accidental
juxtaposition of variously shaped and colored pieces of glass used in the ordinary
kaleidoscope.
My Invention consists mainly in the substitution for the irregularly shaped and
variously colored loose pieces of glass ordinarily employed, of plates or discs one two
or more in number, movable independently in, or across, the field of view so as to
separately or conjointly produce in the instrument designs of great variety which are
yet capable of being reproduced or repeated at will and of being indefinitely varied
by the substitution of other plates or dises. These plates or discs may either slide
across or revolve or roll in the field of the instrument; and as the disc is the most
convenient form I will describe them as discs.
Reference is to be had to the accompanying drawings forming part of this specifica-
tion, wherein figure 1 is a longitudinal section, and figure 2 an end view of the
instrument, provided with rolling discs. Figures 3 and 4, 5 and 6, are similar
sections and end views shewing the instrument provided with revolving discs.
Figure 7 is a section of part of an instrument provided with both forms of disc.
Figure 8 is an end view of another modification. Figure 9 is an end view shewing a
slide in lieu of a disc. The same letters of reference indicate the same parts in all the
figures.
The kaleidoscope may be constructed in any ordinary or suitable. manner and
usually comprises the ordinary three, plane, mirrors a a a enclosed in a conical tube
or casing provided at the smaller end with an eye piece b, but for certain purposes
four or more mirrors may be used and the eye piece may be fitted with striated,
or other, glass which will to a certain extent break up the rays of light, or with
lenses.

page_text: The discs, which I will respectively distinguish as the color and pattern discs, are
generally two in number, one of each kind, they are placed in front of one another
in the field of view, and are independently adjustablo, but the invention comprises tho
use with the instrument of either a color or a pattern disc, separately and likewise
the use of several of the one kind of disc conjointly with one or more of the
other kind.
In figures 1 and 2, the adjustment of the discs is effected by rotating the instrument
the discs ed being arranged to roll around the inner circumference of a rim or cap e
having a circular aperture and fitted on the tube of the instrument. These discs
are smaller than the inner circumference of the rim e and may be of the same or
different diameter so that when the instrument is turned round, their rolling motion
will bring different portions of the discs into the field of view and if they are of
different diameters will vary the relative positions of the discs to each other. The cap
may be secured by a bayonet joint or otherwise so as to be readily removable from the
tube to enable other discs to be substituted, and it may also be used to clamp the discs
in any given position, or a disc holder may be provided in the form of a slide f
adapted to press against the inner disc, so as to hold it stationary and fix the design
whilst the other is free to be revolved to vary the colors or vice versa, as the case may
bo. This rolling arrangement of the discs is generally to be preferred, as the rolling
motion so varies the positions of the discs in the field of view as to produce a great
variety of design, whilst the arrangement is compact and the discs are provented
from injury.
In figures 3 and 4, the discs c¹, d' do not roll around within a rim but are pivoted
on a centre fixed to the end of the casing and aro held in place by a wing nut.
They may be easily revolved separately or together, by applying the hand to the
circumference.
In figures 5 and 6 the arrangement is the same, but tangent screws mounted on the
end of the casing are shewn as gearing with the toothed circumferences of the discs
for the purpose of adjusting and holding them. In figure 7 the instrument is pro-
vided with two or more thin metal caps or rims e e fitting on the tube and on one
another, each being adapted to hold a rolling disc and the outermost one carrying a
screw stud on which one or more discs c¹ d¹ may be pivoted, as in figures 3 and 4.
The caps fit on one another and by pressing them home may be made to clamp the
rolling discs in any given position.
In figure 8, the discs revolve, as in figures 4 and 5, but not upon a centre. They
are inserted in slots made in the side of the cap or rime of tho casing and partly
project therefrom whilst bearing against the opposite inner side thereof, so that they
may be readily rotated in the field of view by applying the finger to the edges of
the discs. Figure 9 shews a sliding plate traversed across the field in guides by means
of rack and pinion gear, or otherwise. This sliding plate may be used in conjunction
with another sliding plate, or with a rolling, or revolving, disc but the sliding form is
generally less convenient and does not produco so great a variety of designs as the
rolling or revolving discs.
The colored disc or plate is composed of parti-colored glass or of differently colored
segments of glass cemented or otherwise joined together. These segments may either
be of plain colored glass or be ribbed, corrugated, striated, figured, or otherwise
variegated, and they may be in the form of sectors or strips, or of regular or irregular
pieces arranged mosaically in an indefinite variety of ways and in various combi-
nations of colors. The pattern disc (of which an example is shewn in figure 6) may
be an opaque or semi-opaque diaphragm pierced with apertures of various shapes
constituting the elements of an infinite variety of designs produced by reflection in
the mirrors of the instrument. In combination with, or in lieu of, such a diaphragm
I may use one or more discs of ribbed or corrugated glass, to modify the effect of the
designs produced, or to produce designs, as the case may be; the glass in addition to
being ribbed or currugated being also in some cases striated in any manner with glass
of a different color, or colors, or by other means.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what
1 claim is :-
The combination with a kaleidoscope of one, two, or more plates or discs, movable
as described in the field of view of the instrument and adapted to partly admit, cut-
off, obstruct, break up, or modify, the rays of light entering the instrument, as and
for the purpose specified.