Improvements in Adjustable Frames for Holding Magic Lantern Slides and the like.
Year: 1888

page_text: Date of Application, 6th Nov., 1888
Complete Specification Left, 6th Aug., 1889-Accepted, 19th Oct., 1889
PROVISIONAL SPECIFICATION.
Improvements in Adjustable Frames for Holding Magic Lantern
Slides and the like.
I, FRANCIS BEAUCHAMP of Lawrence Cottage Rose Lane Romford in the County
of Essex Engineer do hereby declare the nature of this invention to be as
follows:-
To provide means for the adjustment of Magic Lantern Frames or the like to slides
of different sizes.
For this purpose I provide a rectangular Skeleton Frame made of tubing square or
otherwise in section the long ends of the frames have their inner faces cut away
forming slots to hold 1. 2. or more glasses or slides and are connected by tubes
working in each other telescopically and provided with a spring or elastic band or any
other suitable device for clutching the glass or glasses firmly in the frame.
The said Frame is provided with side springs for holding it firmly in front of the
Condenser when exhibiting.
I sometimes use a jointed Frame made of wood or any other suitable material
which is held together by a spring or springs or ordinary Catch for the purpose of
holding various sized glasses or slides & with sliding end or ends for the purpose
of adjustment as before described.
Dated this 6th day of November 1888
COMPLETE SPECIFICATION.
Improvements in Adjustable Frames for Holding Magic Lantern
Slides and the like.
I, FRANCIS BEAUCHAMP of Hope Cottage Chadwell Heath in the County of
Essex 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:-
Improvements in Adjustable Frames for Holding Magic Lantern Slides and the like
either for exhibiting in the Lantern or for displaying in shops & other places. For
this purpose I provide a rectangular skeleton frame made of tubing square or other-
wise in section the long ends of their inner Frames have faces cut away forming
slots or grooves to hold 1. 2 or more glasses or slides and are connected by tubes
working in each other telescopically and provided with a spring or Elastic band or
any other suitable device for clutching the glass or glasses firmly in the frame.
Fig. 1. is a frame cut in half for use with the Lantern, showing 2 glasses 1 round
& I square. Fig. 2 is a cross section. Fig. 3 is a portion of a frame for holding 12
glasses for exhibition purposes. Fig. 4 is the corresponding column disconnected
& cut in half showing the slots for the purpose of lifting to release the glasses &
also the spring for holding the glasses firmly in the frame. Fig. 5 is a section of
exhibition frame for carrying 12 glasses, with the columns and cross inbes cut in
half showing the way the cross tubes are fitted into the columns likewise the position
the glasses lie in the slots or grooves. The back edges of the tubes are shown in
dotted lines springs are fixed to the back edges of the said square tubes for the purpose
of pressing the glasses forward in the frame for the convenience of taking away each
glass separately which can be done by releasing an ordinary catch which is rivetted to
the front edge of the said square tube the top and bottom tubes are larger in diametre
and have their inner faces cut away for the back or reflecter to lie in, they also act as
stay rods. Fig. 6 is a section of a frame for holding 2 dozen glasses showing one of

page_text: the cross square tubes with its inner face cut away the opposite face has a longitudinal
slot cut in the centre for the purpose of sliding the back or reflector through each of
the said cross tubes which when done forms a groove on each side of the back for the
glasses to lie in thus dividing the two dozen glasses, the top cross tube of this frame
has a longitudinal slot cut through its two faces the bottam cross tube has only its
inner face cut away leaving the bottam face for the back to rest on, the top and bottam
tubes act as stay rods, the glasses are released in the same manner as before described
in Fig. 5. A in Fig. 1, is a piece of square tube with one sido cut away forming a
groove for the glasses to lie in. B is a spring one end of which is hooked on to the
top and the other end to the bottam of the frame working inside the tube for the
purpose of clutching the glasses firmly in the frame or an elastic band may take the
place of the said springs. C. C. are the ends working telescopically. D is a pro-
jecting piece for the exhibitor to hold. E. E. are the glasses. F. in Fig. 3 is a round
piece of tube with parts cut away forming slots which are marked G.
His a
square tube with parts cut away forming grooves or slots for the same purpose as
before described. I. is a spring connected at each end of the square tube for the
purpose of clutching the glasses firmly. J is a piece of tube acting as a stay rod.
K. K. in Fig. 5 are tubes acting as supports or columns with square holes cut in and
marked L for the square tubes to fit in which are marked M. Naro the stay rods
placed top and bottam. O. O are supports or legs which work loosely on the ends of
the stay rod. P is a nut or bution for the purpose of tightening the support or leg at
any angle as well as for reversing the frame for exhibiting the two dozen glasses, one
dozen on each side of the back. Q is a spring shown in dotted lines which push the
glasses forward when the catch is released for the convenience of taking out each
glass separately. R in Fig. 6 is a longitudinal slot cut in the tube for the purpose of
placing a back or reflector between the glasses. S. S. show the glasses in the grooves.
T. T. are sections of the two supports or columns.
An important advantage of this adjustable Frame is that it is much lighter and and
will hold double the quantity of glasses in the same size frame as is now in use, and it
is also more easy and simple for the exhibitor to change the glasses.
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―
1st. An adjustable Frame for holding Magic Lantern Slides substantially as
described.
2nd. An adjustable Frame for holding Magic Lantern Slides substantially as
described and illustrated in Figs. 1, 2, 3, 4, 5 & 6 of the drawings hereto annexed.
Dated this 6th day of August 1889.
FRANCIS BEAUCHAMP.