Improved Form of Flap Shutter and Shutter Band Combined for Instantaneous Photography
Year: 1885

page_text: Improved Form of Flap Shutter and Shutter Band Combined
for Instantaneous Photography,
GEORGE MOLD 17 Parson Street Banbury in the County of Oxford, Photographer,
I do hereby declare the nature of this invention to be as follows:-
My invention relates to an improved form of flap shutter & shutter band that
can be used vertical or any position on lens mount that can be regulated from slow
to rapid motion also suitable arrangement to fit various sise lenses the front & back
are in two pieces of wood or any suitable material with holes in each to fit hood of
smallest lens intended to be used with shutter, the sides are fixed to back & front
at a suitable distance between each for shutter band to act. Rollers on flaps are dics
or rims elastic bands, toothed wheels catches arms or triggers to fix regulate liberate
shutter flaps and band as may be required.
The front A & back A A fig. 1. 2. 3 are made of wood or any suitable material
baving holes in centre B. & B B. fig. 1. 2. 3. to fit smallest sise lens intended to be
used with shutter. The sides C. fig. 4. are fixed to front & back leaving a space
between each for shutter band D fig. 3 to act. Insides are two rollers or spindles E.
fig. 2 & 3. forming axis of flaps the flaps are fixed through the rollers or
spindles E E fig. 2, these flaps are rounded at other end F fig. 2. 3. 4. 80 as to
over lap hole in front A fig. 2. on each flap is fixed a dics G fig. 2. 3. 4 of wood
rims of brass or any suitable material to fit hole in front B. The bottom flap is in
two pieces hinged together H fig. 4. with suitable elastic band or spring from centre
of roller or spindle through dics or rim dotted line H H fig. 4 of flap with catch I
fig. 4. to fasten flap back to any angle II fig. 4. Several small pins J fig. 5. on top
of frame work enclosing elastic bands these pins J are to liberate catch I on hinged
shutter flap at any angle required this is to give longer exposure to shady side
of street &c. On rollers or spindles is fixed collar's round which passes elastic
band's K K fig. 4. to two small spindle's to these are fixed toothed wheels L fig. 4.
catches & springs L L fig. 4. 5. these are to regulate speed of shutter flaps by
turning as required. On rollers or spindles forming axis are toothed wheels M fig. 4.
with arms or triggers N with tooth to fit in wheels N N, 6g. 4. the arm or trigger
to hinged flap H is fixed at a small distance from other arm or trigger when
set O fig. 4. The top arm or trigger when used is touched with finger striking
bottom arm or trigger the space between arms or triggers liberates the top flap a
short time before hinged flap the hinged flap can be fixed with small catch P fig. 4.

page_text: This
in toothed wheel the bottom arm or trigger turned on one side P P. Then the
shutter band being rolled upon small roller Qwith toothed wheel QQ fig. 3. 4.
with several catches R. fig. 4. the top flap when liberated the arm R R fig. 4. strikes
against either of the catches R set in wheel QQ liberates shutter band, when
shutter flap is at either angle S required fig. 4. shown in dotted lines S¹.
shutter band D is made of silk thin sheet copper or any suitable material with or
without hole in centre, a suitable elastic band is attached to shutter band D. shown
at D D fig. 2 brought round small roller T then taken to other roller T T fig. 3.
this roller as toothed wheel & catch to fix and regulate speed of shutter band,
the handle U shown fig. 2 is to roll up shutter band. On back A A of shutter is
fixed a rim of wood or brass V or any suitable material to fit smallest lens intended
to be used with shutter then other rims V V are fixed on back A A to fit other sise
lenses for which shutter is required these are made of any suitable material, the
rim V fits hood of 10 x 8 rec & lens gives full opening to 18 x 16 symmetrical
lens as shown in outer rim V V the other rims V V are for other sise lenses, fig. 1.
The arm R R also is to assist to fit or set shutter flap, both flaps & shutter band
can all act together if required. The hole B in frout & dics or rims can be made
to any shape required in making. The arms triggers wheels catches can be
encased if required.
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аци
for Instantaneous Photography.
I GEORGE MOLD 17 Parson St Banbury Oxon Photographer 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 an improved form of flap shutter and shutter band
combined for instantaneous photography that can be used vertical or horizontal on
lens mount that can be regulated from slow to rapid motion also suitable arrange-
ment to fit various sise lenses the front and back of shutter are in two pieces of
wood or other suitable material with holes in each a little smaller than smallest
lens mount intended to be used with shutter the sides of shutter are fixed to back
and front leaving a space between back and front for shutter band to act Rollers
and spindles formng axis to shutter band and flaps elastic bands to spindles and
rollers dics or rims on flap or flaps toothed wheels cacths teeth arms or triggers to
fix regulate liberate shutter flap or flaps and band as, may be required.

page_text: The front A of shutter and back A A fig. 1. 2. 3 are made of wood brass or other
suitable material having holes in each a little smaller than lens mount or smallest
lens mount intended to use with shutter B. B B fig. 1. 2. 3 the sides C of shutter
fig. 2 & 4 are fixed in ordinary way or ways to front A and back A A leaving a
space between A and A A fig. 3 for shutter band D to act the front A and back A. A
can be fixed together leaving a space for shutter band D or have a portion sunk in
one or both the width of band and of sucfficient space Through sides of shutter C
are spindle or spindles E fig. 2. 3 forming axis to shutter flap or Baps the ends of
flaps not fixed to spindles is rounded F to overlap hole B fig. 2. 4 On flap or flaps
are fixed a dics G or rim of wood or any suitable material to fit in hole B in
front A fig. 2. 3. 4 the bottom flap is in two pieces binged together H fig. 4 with
elastic band fixed to spindle passing through dies or rim H H and fixed fig. 4
with cacth or hook I to fasten top part of hinged flap back to angle required I I
with pins J or buttons on frame work K of shutter enclosing elastic bands fig. 5
these pins J or buttons liberate cacth or hook I when shutter flap in action thus
allowing hinged part with dics to close On flap spindle or spindles at suitable
distance from end are fixed colars to which is fixed one end of a elastic band K K
fig. 2. 4 is then wound round as required, or the elastic band can be fixed to
spindle and wound round instead of colar the other end of elastic band is then
fixed to small spindle or spindles which pass through side C to other strip of wood
or other material which encloses elastic bands K K from shutter flap or flaps On
one end of spindle or spindles are fixed toothed wheels L fixed on in ordinary way
or ways with cacthes L L or teeth to fit in toothed wheels and to fix when required
by turning round spindle or spindles the elastic bands are tightened or sclackned
thus regulating speed of shutter flap or flaps On one end of spindle or spindles
forming axis to shutter flaps are fixed toothed wheels M fig. 4 to top spindle is
also fixed an arm or trigger R R fig. 2 4 to assist in fixing top shutter flap and to
liberate shutter band D fig. 3 when working in combination with shutter flap or
flaps as may be required On side of shutter C are pivoted arm or arms or trigger N
with tooth N N to fit in toothed wheel or wheels M fig. 4 When shutter is set to
act fig. 4 the arm or trigger to hinged flap is fixed at a small distance from top arm
or trigger O fig. 4 so that when top arm or trigger is touched with finger the
tooth N N is moved out of wheel M the moving of top arm or trigger strikes
against bottom arm or trigger and liberates bottom or hinged flap the small space
between arms at fig. 4 liberates top flap short time first the hinged flap can be
fixed with cacth P or tooth in wheel M the arm or trigger turned on one
side P P fig. 4 when not required to be used with top flap or shutter band D
This shutter band can be made of silk leather or other suitable material with a
suitable elastic band attached D D ɓg. 2 & 3 Other end of shutter band is fixed
to roller q fig. 2 & 3 the elastic band attached to shutter band is then brought
round roller T fig. 2 & 3 taken up to roller T T fig. 2. 3 and fixed This roller at
one end as a toothed wheel fig. 2 cacth or tooth to fit in wheel and fix by turning
this roller it tightens or slackens elastic band attached to shutter band
shutter band D fig. 3 is rolled up on roller q fig. 2 & 3 with handle U fig. 2 Other
end of roller is a toothed wheel q q fig. 24 with several cacthes R or teeth to fix
in toothed wheel as required. The arm R R fig. 4 on top spindle can be fixed
either round or hollow side to toothed wheel qq the cacthes or teeth being fixed in
different places round toothed wheel as required so that the top shutter flap when
working in combination with shutter band the arm or trigger R R strikes against
either of cacthes or teeth R set in toothed wheel qq and thus liberating shutter
band D when shutter flap is at either angle shown in dotted lines S fig. 4 for which
cacth or tooth is set in wheel qq when wanting to give longer expoures the top
flap can be made to rise very slow and the cacthes or teeth that the arm R would
strike against are turned down or out of the way and one cacth R 2 is set in
wheel which arm passes over-then when sufficient exposure is given remove cacth
out of toothed wheel qq with finger and shutter band D instantly falls by action
of elastic bands if shutter is only wanted for one lens a rim or colar of wood or
The

page_text: brass as is generally used can be fixed on back of shutter A A at V but as my
invention can be used for several lenses by fixing several rims V and V V fig. 1 to
plate of brass fig. 1 or other suitable material if A A is made of wood then plate
is fixed to back of shutter A A in usual way fig. 1 if back of shutter A A is made
of brass or similar material the rim V and rims V V fig. 1 are fixed to back A A
It will be seen that for certain work in connection with instantaneous photography
and for other work for which this shutter is suitablle and without departing
from the principle of my invention that the bottom or hinged flap can be dispensed
with and might be left out in making of shutter with its connections if required
fig. 2 Also that the cacthes or teeth round wheel q q and arm or trigger slightly
altered so that shutter flap when at intermediate angles above horizontal between
or above lines S would liberate shutter band Also that hole B in front A and
dics or rims C on flap or flaps might be other shape than round which are to stop
light entering lens from underside of flaps.
Having now particulary 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. The arm R R on top flap spindle and its combined action in liberating shutter
band as herein and before described and the general arrangement of shutter with
toothed wheels cacthes or teeth trigger or arms for fixing regulating liberating flap
or flaps and bands as described and shown in fig. 2. 3. 4 5.
2. Dics or rims on shutter flap or flaps as described and shown fig. 2. 3. 4 with
hinged arrangement H.
3. Arrangements on A. A of rims V V as described and shown fig. 1.
I do not claim flaps or bands they being old and well known only the arrange-
ments as described.