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‘Nov. 26, 19461
'
5, BLANC
3
2,411,514 ‘
REPRODUCING AND PROJECTING‘APPARATUS
Filed July 29, 1944
a 'She'ets-Sheet' 1
lnveln {or I
‘SAMUEL BLA/VC
Jiiorney
NW 26, 1946.
'
I s. BLANC
2,411,514
REPRODUCING AND PROJECTING' APPARATUS
Filed Ju1y'29. 1944
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‘SAMUEL
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Nov. 26, 1946;
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2,411,514
5_ BLA'NQ' '
REPRODUCING AND ,PROJECTING APPARATUé '
Filed July 29, 1944
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‘Patented Nov. 26,~ 1946
2,411,514 -
OFFICE
um'reo STATES PATENT
' 2,411,514
REPRODUCING AND PROJECTING
APPARATUS
.
Samuel Blanc, Grantwood, N. J.
1
Application July 29, 1944, Serial No. 547,248
6 Claims. (Cl. 88—24)
.
tained.
This invention relates to reproducing and pro
jecting apparatus, and more particularly to ap-'
paratus of this type which is adapted to readily
2
~
-
Additionally, perspective or isometric
drawings or reproductions of- articles of manu
facturemay ‘readily be obtained by the practice
of this invention, as will be apparent to persons
or the like, or of various articles of manufacture," 6:1 skilled in the art from the detailed description
that follows.
such as machine parts.
,
‘obtain scaled images of drawings, prints, inaps
In the design and manufacture of certain items
of equipment, such as in the airplane field. it is
customary to ?rst prepare small scale drawings
a variety'of uses. For example, a scaled image
of an object may be cast on a translucent panel 10 from which actual size templates are drawn by
hand. This is a laborious procedure and con
and readily traced by'hand or: reproduced on a
sumes considerable time. By the use of the ap
sensitized ?lm or the like from which subsequent
paratus of this invention, a~ full size image of the '
blueprints or copies may be made.
small- scale drawing may be (projected and traced
To this end my instant invention comprises a
'to obtain the template direct. If desired, this im
cabinet thatis open’at the top, above and across
age may be projected upon a light sensitive mate
which there is provided a table board having a
rial to obtain a fullsize reproduction without the
translucent panel‘ The table board is vertically
necessity of drawing or tracing.
'
adjustable and is tiltableon a substantially hori
The apparatus of this invention may be‘em
ployed in drafting rooms or other locales and has
' It is an object of this‘ invention to provide ap-.
- zontal axis.) The interior of the cabinet is di
vided into a lower or light compartment and an 20 paratus of the character indicated which is,
adapted to readily obtain enlarged or reduced
- upper or lens compartment. An object-holder is
mounted on a sliding shelf that forms the bot
~tom wall of the cabinet. The object-holder is
' reproductions of various articles including draw
ings, prints and the like.
\
Another object of this invention is to provide
also tiltable on a substantially horizontal axis 25 reproducing and projecting apparatus that may
be readily adjusted to obtain images of various
whereby an object, such as a drawing or an arti
rotatable on a'substantially vertical axis and is
objects at any desired angle and/or size.
cle of manufacture, may be placed thereon and
This invention has for another object the pro
arranged in any predetermined desired position.
vision of apparatus of the type indicated which
A pair of tubular lamps are positioned in the
light compartment above and to the side of the 30 is adapted to obtain perspective 01' other three
dimensional reproductions of an article.
A further object of this invention is the Pro
object-holder and are provided with suitable re
?ectors that are adapted to direct light rays to
the object-holder. The light rays so directed to
vision of reproducing and projecting apparatus
which is relatively simple andcompact in design,
the object-holder are re?ected upwardly into the
lens compartment. A lens assembly is contained 35 sturdy in construction, and trouble-free in op
eration.
within the lens compartment. ‘This assembly in
, The foregoing, as well as other objects, will
cludes a lens plate whose plane may be arranged
be readily apparent to persons skilled in the art
either horizontally or vertically. -The lens plate
by reference to the following detailed descrip-_
has a central aperture and a plurality of lenses
of different focal length pivotally supported. on 40 tion and annexed drawings which respectively
describe and illustrate a preferred embodiment
its upper surface. The individual lenses are so
' of the invention, and wherein
constructed and arranged that only one thereof
Figure 1 is a perspective view of one arrange
at a time registers with the aperture in the lens
ment of apparatus comprising the instant inven
plate. The lens plate is adapted to be raised and
‘
lowered within its compartment by a suitable 45 tion;
Figure 2 is a vertical sectional view along line
mechanism, including vertically disposed racks
2—2 of Figure 1;
and pinions and an actuating means manually
operable from the exterior of the cabinet.
A projector is removably mounted to a side wall
of the cabinet and cooperates with the lens as
Figure 3 is a vertical sectional view along line
3-3 of Figure 1;
50
sembly to project an image on a substantially
horizontal axis through the cabinet when the lens
plate is in one predetermined position.
,By the practice‘ of my invention exact repro
ductionsof various objects may be directly ob- 55
Figure 4 is an enlarged 'fragmentarylview in
perspective depicting the lens assembly and ad
justing means;
Figure 5 _is a perspective view of a cover ar
rangement mounted or. the table of the appa
ratus of Figure l and shown ii. open position;
2,411,514
.
3
.
4
Figure 6 is a perspective view of an adapter
mounted on the apparatus of Figure 1;
Figure 7 isa view similar to Figure 3 andlillus
trating the lens plate in vertical position; and
.
~ _ this invention. This includes a support 66 that is
secured to the rear wall of the cabinet and that
is provided with a pair of vertical grooves II
which receive bent-over portions 62 vof a pair
Figure 8 is a perspective view in enlargement 5 of arms 68. The front face of support 50 carries
of a portion of the rear wall of the cabinet show
a pair of vertical racks 64 which mesh with pin
ing a slide panel in place‘ of the projector of Fig
ions 66 that are secured to a shaft 66 which ex
ure 3.
tends through arms 62 and a vertical slot 61 in
. Referring ‘to the drawings, and more particu
a side wall of the cabinet. A hand knob 68 for
larly to Figures 1, 2_ and 3 thereof, the numeral 10 imparting rotation to shaft 66 is connected to the
i6 generally denotes a cabinet that is open at the.
outer end of said shaft. A knurled lock nut 69
top and that includes a base pedestal I I. Above . is in threaded engagement with shaft 66 and
tand across the cabinet top there is disposed a
serves to lock said shaft in desired vertical po
work table I2 that is provided with a central open
sition. Each arm 63 is provided with an elon
ing i8 within which there is a translucent panel 15 gated notched slot 68 and an elongated bayonet
l4 which may be transparent and which is com
slot 6|. A lens plate 62 is disposed between arms
posed of a suitable glass or similar material.
53 and is provided with pins 63 that extend
The work table carries a pair of depending brack
through slots 68. Threaded pins 64 extend lat
ets IS. A tubular member I6 is open at each
erally of plate 62 and are adapted to be received
end andis telescopically positioned in the upper 20 in bayonet slots 6|. Wing nuts 65 .engage pins
part of the cabinet.‘ Bolts I'l extend through op
64 and serve to lock lens plate 62 in the position
posite walls of tubular member is and brackets
shown in full lines in Figure 4. By loosening
IE to thereby pivotally connect the work table
wing nuts 65 and moving lens plate 62 toward the
to the tubular member. Each bolt is provided
rear of the cabinet, pins 64 are disengaged from
with a wing nut l8 for maintaining the work 25 bayonet slots 6| and the lens board is pivoted by
table in desired tilted position with respect to'the
gravity to the position shown in dotted lines in
' cabinet. Suitable roller or ball bearings I9 are
Figure 4 or to any intermediate. position, as de
provided to minimize friction and facilitate the
sired. ' The lens board is providedfwith a central
raising and lowering of tubular member l6 with
opening 66. A plurality of lenses 61, 68 and 68
respect to the cabinet.
'30 of different focal length are‘ pivotally supported’
The tubular member and the work table 12 are
to the upper surface of the' lens plate and are
raised and lowered along a substantially vertical
adapted to be locked in predetermined position
path at the will of the operator by a mechanism
by lock nuts 10, ‘H and ‘I2, respectively. These
which will now be described. This mechanism
lenses are so constructed and arranged that only
includes a hand-crank 28 that is connected to
one of them at a time may be pivoted to a posi
a shaft 2| which carries a pair of driving gears
tion whereby it will register with opening 66 in
22 that mesh with driven gears 23 rotatably
the lens plate. As shown in Figures 2, 3-and 4,
- lens 68 alone registers with opening 66.
mounted on stub shafts 24 as best shown in Fig
ure 3. Also mounted on stub shafts 24 are
A pair of tubular electric lamps 15 are mounted
sprocket wheels '25. Corresponding sprocket
above and to the side iof object-holder 45 within
wheels 26 are mounted on stub shafts 21'. Endless
‘ chains 28 cooperate with corresponding sprocket Y
wheels 26 and 26 in the usual manner. Each
chain 28 carries a bracket or connector 29 that
engages a part of the tubular member. Upon
» light compartment 36. Each lamp is connected
to a suitable source of electricity (not shown)
and is, provided with/a combined light housing
and reflector 16 having ventilation apertures ‘I1
" and an arcuate shade 18.
As is best shown in
actuation of hand-crank 26, shaft 2i is rotated
and the various gears and sprocket wheels co
Figure 2, light rays from lamps 15 are directed
operate with endless chains 28 to move connec
rays are then re?ected through opening 35 in
partition 34, through opening 66 in lens plate '
onto object-holder 45 by re?ectors 16. The light
tors 29 and tubular member l6 either upwardly
or downwardly to thereby adjustthe vertical po 50 62, and thence through lens 68, whence they
sition of table board l2. Cabinet 16 is provided
are directed to translucent panel l4.
with slots 38 through which locking members 3|
A_ shelf 88 is hinged to the rear wall of cabinet
project for engagement with sprocket wheels 26
l8 and is adapted to be supported in a substan
to lock the sprocket wheels at the will of the
tially horizontal position by means of at least
55 one collapsible bracket 81. A projector, gener
The front wall of the cabinet carries a'door 32
ally indicated by numeral 82, is supported on
that is hinged at its side edge and a door 33 that
shelf 86 and includes a'main housing 83, a lamp
is hinged at its bottom edge.‘ A partition 34
84, a ventilator hood 85, a slot 86 for receiving
having a central opening 85 divides the interior of
an object plate frame 81, and a bellows 88. Bel- '
the cabinet into a lower or light compartment 36 60 lows 88 is connected to a frame 88 and registers
operator.
'
.
'
.
and an upper or lens compartment 31. _ A re
movable shelf 38 is slidable into the lower por
tion of the cabinet on rails 38 and constitutes
the bottom wall of the cabinet. Reference nu
meral 48 generally denotes an object-holder as
sembly preferably consisting of a turret 4lro
tatable on a substantially vertical axis and formed
with a member 42 that extends into and is piv
otally coupled to a bifurcated member 43 by a
bolt 44. An object-holder plate 45 is carried by
member 48. A handle 46 constituting an ex
tension of bolt 44 permits of rotation of the
object-holder plate about the axis of turret 4|.
Reference is now had to Figures 1, 2, 4 and 7
for a full understanding of the lens assembly‘of
with an opening 66 in the rear wall of the cabi
net. 'A circular opening BI is provided in door 22
directly opposite opening 90 in the rear wall of
the cabinet. Opening 8| is normally closed by
closure 92 that-is pivotally supported to door
22 at '93. When projector 82 is not in use, it
may be removed from the cabinet ‘and bracket
8i may be collapsed to permit shelf 86 to assume
the position indicated by the dotted lines in Fig
ure 3. Also, a slidable panel closure 84 (see Fig.
8) is inserted in frame 88 .to cover opening 86.
When projector 82 is in service, 1611b board 62
is adjusted to the position illustrated in full lines
.
in Figure 7 and in dotted lines in Figure 4. At
75 such times closure 62 is pivoted away from open
4
2,411,514
so constructed and arranged that only one there- .
jing 9| in door 32. The lens board is adjusted '
. I of at a time may be pivoted so as to register with
vertically until the axes of openings 66, 90 and SI '
the opening.
coincide'whereby light rays transmitted through _ -
.
above and acrosssaid top and including a trans
then pass through opening 9| whence they are
projected on a .screen,»a sensitized material. or
the like (not shown) as is indicated in Figure '7.
In Figure 5 I have illustrated a table board
- cover 95' that includes an velongated U-shaped
_
2. Inapparatus of the character described, a
cabinet having an open top, a table disposed
opening 90 by projector 82 pass through open
ing 66 and .the lens registering therewith, and
lucent panel, said table being pivotally supported
' x on a substantially horizontal axis, means for rais
ing and lowering the table with respect ‘to the
cabinet, an object-holder in the lower portion of‘
the cabinet, meansifor tilting the object-holder, _
?tting 96 engaging an edge of the table board,
and a frame consisting of a pair of parallel arms
means for directinglig'ht rays onto the object
holder,‘ and substantially vertically and horizon
91 and a cross piece or handlebar 98. Each‘
the cab.
arm 91 is provided with a slot 99. The cover ‘ tally ovable‘lens means positioned‘
inet
intermediate
the
object-holder
and
the ta
15
proper is indicated by numeral I00 and consists of
ble, said ‘lens means comprising a plate, an open
a plurality of wood slats IOI mounted on a cloth‘
ing in, the plate‘, and a plurality of lenses having
backing I02 that is joined at its lower edge to‘
?tting 96. The upper portion of'cover I00 is
different‘ focal lengths, said lenses being inde
pendently and pivotally secured to the plate and
secured to a pair of pins I03 which are slidable v
being so constructed and arranged that only one
in slots 99 and are provided at their free ends 20 thereof at a time may be pivoted so as to register
with removable knobs I04. A cushion I05 of rub-v
with the opening.
.
;
‘
'
ber or the like is provided between arms 91 and
' 3; In apparatus of the'character described, a
cover I00 to, absorb impact shocks when the cover
cabinet having an opentop, a table disposed
is lowered upon the work table. It will be ob
above and across said top and including a'tran's
served that cover 95 is substantially co-exten 25 lucent panel, means for raising and lowering the
sive with the surface of the table board.
.
table with respect to the cabinet, an object-holder
' An adapter for the work table is shown in
in. the lower portion of the cabinet, means for
Figure 6 and comprises a panel I06 that has a
rotatably supporting the object-holder on a, sub
central opening (not shown) and that is con“
stantially vertical axis and for tilting ‘the object
nected at one end to a U-‘shaped ?tting I0'I 30 holder on a substantiallyhorizontal axis, means
which engages an edge of the work table. The
for directing light rays onto the object-holder,
opposite end of'the adapter panel carries a pair
and substantially vertically movable lens'means
of upwardly projecting pins I08. A removable
positioned in the cabinet intermediate‘the object
'U-shaped ?tting ‘I09, adapted to slip over adapter
holder and the table. ;
'
35
panel I06 and the edge of the work table, is
4. In apparatus of the character described, 'a
. formed with a pair of bayonet slots I I0 for receiv
cabinet having an open top, a table disposed
ing pins I08. A frame III that is open at one
above and across said top and including a, trans
end is mounted on panel I06 directly above
lucent panel, said table being pivotally supported .
translucent panel I4 of the table board. A frame
on asubstantially horizontal axis, means for
H2 carrying a ground-glass plate I I3 is coupled 40 raising
and lowering the table with respect to
-to frame III by a plurality of hinges H4. Leaf
‘ the cabinet, an object-holder in the lower portion
. springs II5 are attached to the upper surface of ' ofthe cabinet, means for rotatably supporting
frame III and bear upon hinges II4. Hinges I I4
the object-holder on a substantially vertical ‘axis
permit the introduction of a film-holder, H6 be’
and for tilting'the object-holder on a substan
tween adapter panel I00 and frame II 2v against
the actioyi‘of leaf springs H5. This arrange-'
tially horizontal axis, means for directing light
rays onto the object-holder, and substantially
ment permits the operator to obtain an enlarged '
or reduced reproduction of the object supported
onthe object-holder on" a sensitized plate I"
in ?lm-holder H6.
'
‘
1
‘ vertically and horizontally movable lens means
positioned in the cabinet intermediate the object
50 holder and the table, said lens means cbmprising I
Based on-thev foregoing description, it is be
lieved that the objects, advantages 'and operation
" of this invention will be readily comprehended by
persons skilled in the art. It is to be understood,
however, that various changes in the apparatus 55
herewith illustrated and described may be re
sorted to without departing from the spirit of
this invention or'the scope of the:appended '
claims.
'
I claim:
above and across said top and including a trans
'on a substantially horizontal axis, means for rais
mediate the obiect-holder and the table, said lens
ing and lowering the table with respect to the
means comprising a plate,’ an opening in the
plate, and a plurality of lenses having different
‘ cabinet, an object-holder in thevlower portion of
focal lengths, said lenses being independently and
70 pivotally secured to the plate and being so‘con
inet intermediate the object-holder and the table,
said lens means comprising a- plate, an opening h
in the plate, and a plurality of lenses having dif
ferent focal lengths, said lenses being independ
7 >
5. In apparatus of the character described, a
cabinet having an open top, a table disposed
above and across said topfand including a trans
lower portion of the cabinet, an object-holder
rotatablysupported by and above the shelf on a
substantially vertical axis, means for tilting the
object-holder on a substantially horizontalaxis,
and lens means positioned in the cabinet inter
lucent panel, said table being pivotally supported
holder, and lens means positioned in the cab
with the opening.
60 lucent panel, a, removable sliding. shelf in the
- 1. In apparatus of the character described, a
_ cabinet having an open top, a table‘ disposed
the cabinet, means for tilting the object-holder,
means for directing light rays onto the object
a plate, an opening in the plate, and a plurality
of lenses having different focal lengths inde
pendently and pivotally secured to the plate and
being so constructed and arranged that only one
thereof at a time may be pivoted so as to register
structed and arranged that only one thereof at a
time may be pivoted so as to register with the
opening.’
1
.
i
.
.
6. In apparatus of the character described, a
ently and pivotally secured to the plate and. being 75 cabinet having an open top, a table disposed
2,411,614
.
‘ above and across saidtop and including a trans
lueent panel, a removable sliding shelf in the
lower portion of the cabinet, an object-holder
rotatably supported by and above the shelf on a
substantially vertical axis, means for tilting the
object-holder on a substantially horizontal axis,
and‘ substantially vertically and horizontally - movable lens means positioned in the cabinet -
intermediate the object-holder and the table, said
-
8
‘
-
-
lens means comprising a plate,v an opening in the
plate, and a plurality of lenses having different
focal lengthsfsaid lenses being independently
and pivotaily secured to the plate and being so
constructed and arranged that only one thereof
at a time may be pivoted so as to register with
the opening.
-
.
SAMUEL BLANC.
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