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Патент USA US2408248

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Sept» 24, 1946- ’
Filed Dec. l5, 1945
8 Shee'LS-Shee’ß l
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Sept» 24, 1946-
Filed Deo. 15, 1945
8 sheets-sheet 2
Sept. 24, 1946.
s. N. wEkl-:MAN
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Filed Deo. 15, 1945
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i Sept. 24, 1946.
' 2,408,247
Filed Dec. l5, 1943
8 Sheets-Sheet 4
Sept. 24, 1946.
Filed Dec. l5, 1943
8 Sheets-»Sheet 5
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Sept. 24, 1946.
Filed Dec. l5, 1943
8 Sheets-Sheet 6
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sept; 24, ‘1946„
Filed Dec. 15, 1945
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Sept. 24, 1946.
Filed Dec. l5, 1943
8 Sheets-Sheet 8
Patented Sept. 24, 1946
Stephen N. Wekeman, Saddle River Township',y
Bergen County, N. J., assign'cr to Sun> Chemical
Corporation, a- corporation of Delaware
Application December' 15, 1943, Serîal'No. 514,311
4 Claims'.
(Cl. 88-24)
My invention relates to cameras. `
`partly in elevation, taken` on the line lil-It of
Fig. 8 looking in the direction of the arrows;
My invention has particular reference to a
camera which is constructed and arranged in
Figs. 11 and 12 are perspective Views illustrat
such manner that the operative parts thereof
ing features of the invention;
may readily «be disassembled when it becomes de‘ Ul
Fig. 13 is an enlarged elevational View show
sirable to pack the camera for transportation
ing one end of my novel camera;
and, conversely, the invention is signiñoant in
Fig. 14 is a vertical sectional View, partly in
that the separate camera parts may be' readily
elevation, taken on the line lli-I4 of Fig. 13
and quickly re-assembled when it becomes de
looking in the direction of the arrows;
sirable to set up the camera for use.
Fig. l5 is a perspective view showing parts of
My invention has further reference to a cam
my novel camera in disassembled relation;
era which is adapted either for “reilecting” or
Fig. 16 is an enlarged elevational view, partly
“through” projection, or for use as a contact
in section, showingv the camera as illustrated in
printing device as will hereinafter be explained.
Fig. 5;
With a camera of the character stated or with
other types of cameras, my inven-tion has refer
Fig. 1'7 isv `av vertical sectional view, partly in
elevation, taken on the ling I'l-ll of Fig. 16
ence to a novel copyholder and to a novel nega
looking in the direction of the arrows;
tive carrier Iboth being adapted for camera use
and each being adapted for use as a vacuum
Fig. 18 is a transverse' sectional View, partly inv
elevation, illustrating a detailed feature of the
printing frame.
20 invention; and
Various other objects, advantages and features
Fig. 19 is a side elevational view of the arrange
of my invention will become apparent from the
ment shown in Fig. 18.
Referring to Figs. 1, 2, 3; 8 and 9, I have shown
My invention resides in the camera', Vacuum
a horizontal tubular supporting structure i
printing frame, negative carrier, copyholder, fea 25 formed from separablel sections la and lb hav
tures and arrangements of the character herein
ing approximately the same length. The end of
after described and claimed.
the section la toward the left is closed by a plate
For an understanding of my invention and for
2 having an inwardly extending flange suitably
an illustration of one of the forms thereof, r'ef'
secured to said section la, as by the screws 3.
erence is to be had to the accompanying draw 30 The plate 2 comprises a central tubular section
ings, in which:
2a utilizable as hereinafter described. The end
Figure 1 is a perspective view showing the cam
of the tubular section lb toward the right is closed
era of my invention;
in similar manner by a plate 2 which differs from
Fig. 2 is a perspective View showing the camera
the ñrst namedÀ plate 2- merely in that it does
following detailed description.
arranged yfor “through” projection;
f not include a' tubular section 2a.
Fig. 3 is a perspective View showing parts' of
Formed as an integral part of the plate 2 is
the camera in disassembled relation;
a horizontal tubular member 4 which comprises
Fig. 4 is a perspective view showing the cam
a vertical tubular section 4a; A member 5 freely
mounted in the tubular member 4 is provided with
era modiñed to form a Contact printer;
Fig. 4a is an enlarged" vertical sectional View 40 a central radially extending passage 5a adapted
to be aiined with the passage formed by said
illustrative of a detailed feature of the inven
tuibular section 4a. A latching member 6 providedv
with a head 6a adapted to enter the passage 5a
Fig. 5 is an enlarged plan View showing one
is provided withv an operatingl nnger piece'l. As
end of the camera;
45 shown in Fig. 9, the latching member Gis biased
Fig. 6 is an elevational View, partly in section',
in a downwarddirection by a helical spring 8 dis
showing the` camera as illustrated in Fig. 5;
posed around the shank thereof.
Fig. 7 is an elevational View showing a lamp
At each side of the tubular member d, the
member 5 comprises an extending section 5a, to
Fig'. 8r is a vertical sectional View, partly in' ele 50 each of which is pivoted the bifuroated end of
vation, illustrating the horizontal camera s'up
port and associated parts;
Fig. 9 isa-vertical sectional View, partly inele
vation, taken on the line 9_9 oi- Fig. 8;
Fig. l0 is an enlarged, Vertical sectionalview, 55
a leg or supporting member 9 for the camera
herein disclosed, the upper end of each leg 9
comprising flattened surfaces‘âa cooperative with
the adjacent end surface of' the tubular mem
ber' 4;
The aforesaid plate 2 of the tubular section Ib
passages receiving the respective headed pins 2li
has formed integrally therewith a supporting
arrangement for the other set of legs 9. This
arrangement is a duplicate of that just described
which, when said frame F is seated on the collar
C are disposed in the respective passages |96.
The aforesaid frame F comprises lower and
upper rear walls 21 and 28, Fig. 14, side walls 29,
Fig. 13, a top wall 30 and an intermediate wall
and, hence, corresponding reference characters
have been applied to the respective duplicate
As shown particularly in Fig. 8, the tubular sece
tion la, at the end thereof toward the right, has
a sleeve I9 projecting therefrom, this sleeve [Il
being suitably secured to the interior surface of
said tubular section Ia. A disk ll is doweled or
otherwise suitably secured to the sleeve I9 in
teriorly and transversely thereof, this disk Il,
3l disposed parallel with respect to and between
the Walls 22 and 30. Allo-f these walls, with the
exception of the wall 28, are secured together in
frame-forming relation in any suitable manner,
for example, by screws as shown.
The frame F further comprises front walls 32
and 33, Fig. 13, together with the respective
transverse walls 32a, 33a associated therewith,
these walls together with the adjacent walls form
ing the respective chambers 32h, 33h. The cham
ber 32o contains a suitable gauge 32o utilizable
for indicating air pressure whereas the cham
ber 33h contains the actuating mechanism of a
pair of electrical switches 32d.
able with a disk I4 transversely secured interiorly .
In accordance with the invention, the aforesaid
of the aforesaid tubular section Ib, said disk I4
frame F is adapted to detachably support a nega
being fixed in position in suitable manner, for ex
tive carrier N which, in the form of the invention
ample, as hereinbefore described with respect to
herein shown, is formed from two oblong sec
the disk I I. Projecting outwardly from the sleevel
II) is a pin i90 adapted to be received in an open 25 tions 34 and 35 pivoted together by hinges 34e
and maintained in closed relation by latches 35e.
slot ic formed in the end of the tubular section Ib.
The carrier sections 34 and 35 are formed with
This pin-and-slot arrangement is of such char
the respective facing channels 34a and 35a which
acter that the tubular sections la and Ib neces
extend continuously throughout the length of the
sarily come into proper alinement before being
four sides of the respective sections 34 and 35.
secured together by the shaft I2.
Seated in the channel 35a and secured to the
Each of the tubular sections la, il) has a rack '
carrier section 35 by screws, or equivalent, is a
member i5 secured exteriorly thereto, these rack
plate 35 formed from suitable transparent ma
members, when said tubular sections la, Ih are
in conjunction with the hereinbefore described
tubular section 2a of the plate 2, forming bearings
for a shaft I2 having an operating wheel i3 se
cured to one end thereof. The other end of the
shaft I2 comprises a threaded section I2a coact»l
related to each other as shown in Fig. 8, being in »
terial such as glass or Lucite.
alinement and utilizable as hereinafter described.
In accordance with the invention and referring
to Figs. 1-4 inclusive, 8, 10, 13 and 14, the tubular
section Ia has freely disposed thereon a collar C
which comprises spaced sections Ita forming a
passage which receives the aforesaid rack mem
ber I5. The collar sections Ilia rotatably support
plate 39 is formed with a four-sided channel 33a
having an endless four-sided rubber ring 31
seated therein and cemented or otherwise suit
ably secured to the surfaces defining said channel
The four sides of the carrier section 35 are
channeled as indicated at 351), Fig. 14, to» thereby
rPhe transparent
form a continuous endless channel adapted to re
a shaft I’I which has secured thereto the hub of
a gear wheel IB disposed in meshing relation with
respect to said rack member I5. At its end oppo
site the gear wheel I9, the shaft I‘I carries an J..
operating hand Wheel I9. The shank of a locking
screw 29 is disposed in threaded relation with re
spect to one of the collar sections i3d and also with
tion 34 for movement therein is a plate 39 formed
from suitable material such as glass or Vinylite.
In accordance with a feature of the invention, the
respect to members leb formed either integrally
surface of the plate 39 facing the plate 39 is
ceive a sheet 38, Fig. 15, formed from suitable
stiff material which is opaque to light rays.
,Seated in the channel 34a of the carrier sec
with or secured to said last named collar sec~ l l, frosted or otherwise suitably treated so that said
plate 39 may be used for focusing purposes in the
tion Iûa. The end of the screw 23 is adapted to
manner hereinafter described.
coact with the rack I5 as hereinafter described.
The collar C, at opposite diametric sides, has
the respective spring clips 2l suitably secured
thereto, these clips 2| being utilizable as herein- .„
after described.
The collar C comprises a flat upper face Iâc
and the upper collar section comprises a vertical
passage 16d which is interiorly threaded. This
central passage IIìd is flanked by parallel non
threaded passages Iße formed in said upper col
lar section.
Adapted for detachable association with said
flat face [3c of the collar C is a frame F which
comprises a lower horizontal wall 22 adapted to
rest on said flat collar face Ißc. Midway between
its ends, the wall 22 comprises a vertical passage
having a bushing 23 disposed therein. Extend«
ing through the bushing 23 is the shank of a
screw 24 which is adapted to be threaded into
the aforesaid passage IBd in order to retain the
As shown in Fig. 14, the plate 39 is drilled for
the reception of a screw 40 threaded into and
securing a guide member 4I to said plate 39. The
guide member 4I is freely slidable in 'a passage
34b formed in the section 34 and the flanged end
of said guide member 4| is freely movable in a
recess 34e provided therefor in said section 34.
A spring 42 helically disposed around the guide
member 4I coacts with the adjacent surfaces of
the section 34 and the plate 39. As indicated in
Figs. 14 and 15, a plurality of biasing arrange
ments which are duplicates of the one just de
- scribed are spaced around the periphery of the
plate 39, the springs 42 of such arrangements
biasing said plate 39 in a direction from left to
right, Fig. 14.
Opposite vertical sides of the carrier section 34
have the respective handles 43 secured thereto
frame F on the collar C, said screw shank carry
in suitable manner and each of the vertical sides
last named has a pair of outwardly projecting
ing an operating hand wheel 25. The wall 22
comprises passages disposed on opposite respec
tive sides of the passage for the screw 24, these
screws 45, each plate 44 having a key-hole slot
44a. When the carrier sections 34 and 35 are
spaced plates 44 suitably secured thereto, as by
closed and latched, this assembly is disposed and
secured in the fra-me F by registering the respec
tive large end of the slots 44a with the heads of
members 46 secured to the adjacent frame side
walls 29 in the same spaced relation as the spac
ing of the slots 44a. Thereupon, the assembly is
moved inwardly and then downwardly to slight
extent. ln this position, the heads of the respec
tive members 46 are opposite the small ends of
the slots 44a and, as a result, the described as
sembly is detachably retained in its operative
The aforesaid carrier section 34 comprises a
channel 34d which extends continuously through
out the length of the four sides of said section 34.
At the top of the carrier section 34, a horizontal
strip 4l is secured thereto by screws 48, or equiva
lent, Figs. 13 and 14. The strip extends down
wardly beyond the adjacent horizontal section
of the channel 34d to form a pocket in which the
upper side of a frame 49 is detachably received.
This frame 49 is a four-sided open structure hav
ing configuration corresponding with that of the
channel 34d and adapted to be received thereby.
rEhe lower horizontal section of said frame 49 is
face of the lens plate 69 is seated in a pocket
formed by a strip 62 suitably secured to the front
surface of the plate 59 which also carries a piv
oted latch 63 coactable with the upper front sur
` face of the lens plate 6 I.
The plate 59 further comprises a seat 59h, Fig.
4a, adapted to receive a plate 64 having an aper
ture 64a alined with the aforesaid aperture 59a
The upper surface of the plate
64 is seated in a pocket formed by a strip 65 suit
ably secured to the rear surface of the plate 59
Y of the plate 59.
which also carries a pair of pivoted latches 66 co
actable with the lower rear surface of said plate
Suitably secured to the rear surface of the
plate 64 is one end of a bellows 61 as known in
the camera art. The other end of the bellows 61
is suitably secured to the aperture-defining sur
faces of the hereinbefore described wall 28 of the
frame F. This wall 28 is detachably related to
the frame F and, to this end, a strip 69 may be
suitably secured to the frame wall 39, Fig. 14,
whereby there is formed a pocket for the recep
tion of the upper end of said wall 28 which, as
shown in Fig. 14, is detachably secured in the
position shown by a pair of latch members 69
pivoted to the aforesaid wall 28 of said frame F.
The bellows Si, then, is secured detachably to
the frames F and
As known in the art, lazy
engaged by a pair of latching members 59 rotat
ably secured to the bottom of the section 34. It
will be understood that, when the members 5i!
are in the position shown in Fig. 13, the frame 49
is secured in its intended position. However, ,f J tongs 'lll may be secured to the plate 64 and the
wall 2S at opposite respective sides of the bel
when said members 59 are moved downwardly to
lows 6l.
suñicient extent, the frame 49 may be detached
from the section 34 in an obvious manner.
Secured in fixed position and in suitable man~
Secured in suitable manner to the frame 49 are
the members 5I, four in all, which are disposed
closely adjacent the respective inner surfaces of
the members forming the four sides of said frame
49. The members 5I anchor in position the end
ner to that end of the tubular structure I toward
k the right,
l, 2
3, is a bracket C2 having
a horizontal upper face 16a, said bracket CI car
rying pair of the clips 2 I. Adapted for detach
able association with said face i60. of the bracket
of a collapsible focusing hood 52 of a character
C2 is the lower horizontal wall 'il of a copy
holder frame FZ. The frame F2 is retained de
tachably on
bracket CZ by a screw-and-pin
arrangement which is a duplicate of those de
scribed for holding the frames F and FI on the
respective collars C and CI. Accordingly, corre
of the frame 49 is shown as carrying a flexible
tube 54 having extending therefrom an extensible 45 sponding reference characters have been applied
to the respective duplicate parts of said screw
nozzle 55 which extends through the aforesaid
and-«pin arrangements.
plate 39 and communicates with the space be
tween said plate 39 and the adjacent plate 35.
The aforesaid frame F2 comprises, in addition
Slidable on the tubular structure I is a second
te the lower wall "l1, vertical side walls i8, 'I8
«disposed in parallel relation and spanned by a
collar CI which, with the exception of the clips
horizontal top wall i9. all of the walls of said
2 I, is a duplicate of the?collar C and has similar
operating and locking mechanism associated
frame FZ being secured together in frame-form~
therewith. Accordingly, corresponding refer
ing relation in any suitable manner. The in
ence characters have been applied to the respec
terior surface of each wall of the frame F2 has
tive duplicate parts of the collars C and CI.
a member 99 suitably secured thereto, as by the
Adapted for detachable association with the
screws 8i. These members 89 are disposed in
flat upper face I6c of the collar CI is a frame FI
the same vertical plane and form a four-sided
open frame. Disposed immediately adjacent this
which comprises a lower horizontal member 56
adapted to rest on said fiat collar face I6c. The
frame formed by the members 39 is a transparent
frame FI is retained detachably on the collar CI 60 plate S2 formed from suitable material such as
by a screw-and-pin arrangement which is a du
glass or Lucite. As indicated at the top of Fig.
plicate of that described for holding the frame F
.1.7. the plate 82 is threaded for the reception of
on the collar C. Accordingly, corresponding ref
a screw S3 threaded into and securing a guide
member 84 into said plate S2. The guide member
erence characters have been applied to the re
spective duplicate parts of such screw-and-pin 65 84 is freely slidable in a passage 95D formed in
the adjacent member 89 and the flanged end of
said guide member 84 is freely movable in a
The frame FI comprises vertical standards 51,
recess 99o provided therefor in said last named
5l which are connected by a horizontal member
well known in the art, said hood 52 being retained
in closed position by a latch 53 pivoted to said
frame 49.
Referring to Figs. 13 and 14, the lower section
58 disposed parallel with respect to the aforesaid
A spring 85 helically disposed
member 56. Above the member 59, the stand 70 around the guide member 84 coacts with the ad~
ards 5l, 57 have a plate 59 secured thereto, this
jacent surfaces of the plate ¿i2 and said last
plate deñning an aperture 59a.
named member Sil. As indicated in Fig. 17, a
The plate 59 comprises a seat 59D, Fig. 4a,
plurality of biasing arrangements which are du
adapted to receive a lens plate 60 to which a suit
plicates of the one just described are spaced
able objective lens 6I is secured. The lower sur
around the periphery of the plate 82, the springs
55 of such arrangements biasing said plate 82
from right to left, Fig. 17.
VIn order to place a copy sheet in the copy
holder frames F2 and F3, the latches 95 are re
The lower surface of the frame wall 'Il' has a
leased so that the frame F3 may be removed from
plurality of spaced members 89 suitably secured
the members 86. Thereupon, the copy sheet is
thereto, as by screws 3l'. The members 86 pro 5 disposed in operative position and the frame F3
ject beyond the frame wall `|`| from right to left,
re-associated with the frame F2, the springs 85
Fig. 17, and each member 3G is provided with a
thereafter biasing the plate 82 from right to left,
vertical passage adapted to receive the depend
Fig. i7, to thereby positively hold said copy sheet
ing section lita of a pin 88. The pins 88 are suit
in engagement with the plate 92. After the valve
ably secured to the lower wall 89 of a copyholder 10 iii/2d has .been opened to connect the vacuum
cooperative with the copyholder frame
pump to the chamber in which the copy sheet
F2, said frame F3, in addition, comprising verti
is disposed and also after the valve H2 has been
cal side walls 9i?, 9d joined by a horizontal top
opened to connect said vacuum pump to the
Wall 9|.
empty chamber which, subsequently, is to receive
The four walls of the frame F3 are channeled 15 the light-sensitive sheet thereby effecting inti
as indicated at 9|b, Fig. l'l, to thereby form a
mate engagement of the copy sheet with the
continuous endless channel adapted to receive a
adjacent face of the plate 92 and similar engage
plate t2 formed from suitable transparent Ina
ment of the frosted surface of the plate 39 with
terial such as glass or Lucite, said plate 92 being
the plate 35, the operator proceeds with the fo
suitably secured in position, as by screws 93
cusing operation in the following manner.
threaded therethrough and into the adjacent
The camera is shown in Fig. l as so arranged
frame sections. The transparent plate 92 is
that the lamps in the respective housings |04
formed with a channel 92a having an endless
illuminate the copy sheet in the copyholder
four~sided rubber ring 94 seated therein and ce
frames when one of the switches 32d, Fig. 13, is
mented or otherwise suitably secured to the sur~ 25 actuated, the other switch 32d being utilized for
faces defining said channel 92a.
operating the motor for the hereinbefore de~
Carried by the top wall 19 of the frame F2 are
scribed vacuum pump. Accordingly, with said
a pair of spaced latches 95 which are engageable
lamps thus energized, the operator releases the
with the respective fixed members 96 upstand
latch 53 and moves the hood 52 to its open po
ing from the top wall 9| of the frame F3, Fig. 5. 30 sition. As a result, provided that the opaque
In this manner, said frame F3 is held positively
sheet 33 is in open position as shown in Fig. 2,
in the position shown in Fig. 17.
the image of the copy sheet, as produced by the
As shown in Fig. 17, the plate 82 is provided
objective lens 6|, after the shutter mechanism
with a passage through which a nipple 91 ex
thereof is actuated, becomes Visible on the frosted
tends, this nipple having secured thereto a flex 35 surface of the plate 39. By adjustment of the
ible tube 93 utilizable as hereinafter described.
hand wheels |9 for the respective carriages C
The bracket C2, hei einbefore referred to, come
and Ci, proper size and focus of the projected
prises oppositely extending supports |90, Figs. 5
image is obtained. rf'hereupon, the hood 52 is
and 6, for pivotal attachment thereto of the re
moved to its closed position and the respective
spective arms lill adapted to move freely in a 40
hand wheels 25 for the carriages C and Cl are
horizontal direction. Freely pivoted to each arm
actuated to positively secure the latter in the
|9| is a second arm |92 likewise movable in a
respective positions thereof to which they were
horizontal direction. Each arm IBI, at its free
adjusted as just described.
end, carries a vertical pin |93 which supports a
The next operation involves disposition of a
vertical housing |94 in which a suitable electric
45 sheet of sensitized material in the negative car
lamp is disposed.
rier N. Assuming that the end of the camera to
Referring to Figs. 5, 6, 18 and 19, each leg 9
ward the left, Fig. Ll, is in a dark room, the afore
at the right, Fig. l, has secured thereto a lug |05
said opaque sheet 38 is left in its open position
to which an arm lilt is pivoted, each arm com
and the handles 43 are grasped whereupon said
prising an angular slot Hita adjacent the free
50 negative carrier N is elevated slightly and then
end thereof. The tubular section |17, on its eX
removed from the frame F. At this time, the
terior surface, comprises lugs |01 spaced equi
latches 35e are released and the carrier sections
distantly from the longitudinal vertical plane
34, 35 opened so that the sheet of sensitized ma
thereof, each of these lugs being threaded for the
terial may be disposed in operative position.
reception of a screw i555. With the screws |08
55 Thereupon, the carrier sections are closed and
retracted to some extent, each arm I t9 may be
latched, the springs 42 thereafter biasing the
moved in such manner that the slot Niña there
plate 39 from left to right, Fig. 14, to positively
of is engaged with the adjacent screw |98 where~
hold said sheet of sensitized material in engage
upon, by tightening both screws, the arms |06
ment with the plate 35. Finally, the latched
are anchored in position to thereby brace the
60 carrier sections comprising the negative carrier
associated legs 9.
N are returned to operative position with the
The flexible tubes 5ft and 98 hereinbefore de
frame F as shown in Fig. 14. The Valves | |2 and
scribed comrnunicate with a passage I I0, Fig. 13,
| ita being open to exhaust air from the chamber
formed in a housing | | l having a valve H2 asso
for the copy sheet and the chamber for the light
ciated therewith. Communicating with the pas
sage Hü is a fiexible 'tube H3 which leads to a 65 sensitive sheet and the lamps in the respective
hoods | Elfi remaining energized, the shutter mech
suitable vacuum pump, not shown, operated by
anism of the objective lens 6l is actuated to pro
a motor, not shown, which may be energized by
duce the desired exposure on said light-sensitive
closing one of the switches 32d, Fig. 13. The
gauge 32o, hereinbefore described, also communi~ 70 Should the end of the camera toward the left,
cates with the passage HU.
Fig, l, not be in a dark room, the negative car»
In the open position of the valve H2, the tube
rier N may be removed from the frame F as de
54 is connected with the vacuum pump. In the
scribed, transported to a dark room and there
open position of another valve H2a, the tube 98
have a light-sensitive sheet associated therewith.
is connected to said vacuum pump.
75 Thereupon, the opaque sheet 3S may be moved to
its inward position wherein it obstructs the pas'
sage of light to said light-sensitive sheet through
the transparent plate 3S. Thereafter, the “load
ed” negative carrier N is returned to and asso
ciated with the camera. Just before the expo
sure is to be made, the opaque sheet 3S is moved
to open position to thereby open the light path
to the light-sensitive sheet by way of the ob
jective lens ii i.
Referring to Fig. 2, I have shown the camera
of my invention as adapted for “through” pro
`iection rather than “reflecting” projection as illusu
trated in Fig. 1. The plates Si?. and 22 of the
copyholder are formed from transparent mate
rial and, therefore, when the copy sheet is a
“transparency” as known in the art or when it is
a positive, said last named copy sheet, preferably
surrounded by a suitable mask, may be associated
with the copyholder as described and
iM swung to the rear position shown in Fig, 2
in order to project the image by “through” pro
jection. With respect to this, it will be under
stood that focusing, loading of the negative carn
rier, etc. are performed in the same manner as
hereinbefore described in connection with Fig. 1.
It is a feature of my invention that the camera
may be modified to render it susceptible of use as
a vacuum printing frame. Thus, by reference to
having different thicknesses. The foregoing are
important features of the invention.
Another important feature of the invention re
lates to the copyholder construction. As stated,
both of the plates 82 and 92 are transparent and
the vacuum effect therebetween is maintained for
either “reflecting” or
Further, such vacuum effect is maintained with
out using a rubber blanket and, as known in the
art, this blanket must be removed when the
copyholder is to be used for “through” projection.
A feature of distinct importance relative to the
invention resides in the fact that my novel cam
era of the “knock-down” type. However, there
are other features that relate to cameras general
ly and, therefore, except as limited in the ap
pended claims, the invention is not to be re
stricted to a camera of the “knock-down” type.
As regards this type of camera, it is important
that the following be noted:
The frame F3 may be detached from the frame
F2 when the latches 95, Fig. 5, are released. ‘The
frame F2 may be removed from the collar C2
when the screw 25 is retracted, Fig. 3. The lamp
hoods Ulli may readily =be detached from the re
spective arms |92.
Upon release of the latch 63, Fig. 2, the lens
plate @e may be removed from the plate 59. Fur
ther, the latches 55, Fig. 4a, and the latches 69,
Fig. 4, it will be noted that the bellows 6l, the
lazy tongs 19 and the lens plate 59 have been 30 Fig. i4, may be released to permit removal of the
plate M and wall 28 from plate 59 and frame F,
removed from the camera. (The manner of ef
respectively. Completion of this operation effects
fecting such removal will be hereinafter de
removal of the hood assembly from its operative '
position. Thereupon, the screw 25, Fig. 3, may
When this has been done, the negative carrier
be operated to remove the frame Fi from the col
N may be removed and two sheets disposed there
lar Cl.
in-a light-sensitive sheet and a copy sheet,
The negative carrier N is removable from the
either a positive or negative, from which a con
frame F in the manner hereinbefore described
tact print is to be made, the light-sensitive sheet
and, upon release of the screw 25, Fig. 14, said
being disposed in contact with the plate 39 and
frame F may be removed from the collar C.
the copy sheet in engagement with the plate 3G.
Thereafter, the shaft I2, Fig. 8, may be rotated
Then, after the negative carrier N has been re
to release the section l2a thereof from the disk
associated with the frame F, the chamber con
it. When this is done, the structure i separates
taining said sheets should be subjected to the
into its two sections lo, ib as shown in Fig, 3.
Vacuum effect by opening the valve H2a. As
shown in Fig.
a reflector H5 carrying a high 45 The sections la and ib, then, together with the
parts permanently associated therewith may be
powered electric lamp IIS is suspended on the
arranged as shown in Figs. 11 and 12. Each of
aforesaid plate 59 so that said lamp H6 faces
the collars C and C2 carries a pair of the clips
the frame F. When this lampi Hit is energized,
the two sheets last referred to are properly illum
inated to thereby produce an image on the light
sensitive sheet by a contact printing operation.
Should a larger print he desired than is ob-tain
able with the negative carrier N, the two sheets
as described above may be disposed between the
plates 82 and 92 of the copyholder and subjected
to a vacuum effect by opening the valve |12,
Then, with the reflector l l5 and lamp l I5 facing
the opposite way from that shown in Fig. 4 but
supported on the plate 59, the contact printing
2i and these are utilized, when the legs 9 are
50 folded as shown in Figs. 11 and 12, to hold said
legs in intended »collapsed position. As will be
understood, each pair of legs 9 may be folded
after the associated latching member 6 is re
Obviously, the other disassembled parts may
be readily packed, along with the assemblies of
Figs. 1l and 12, in one or more containers and
transported to a desired destination where the
camera may be quickly and easily reassembled
operation may be effected as will be understood. 60 for operative use. The camera of my invention,
then, is well adapted for use by the military
If desired, the illuminating action of the lamp
services. However, its use is not to be so re
I I6 may be supplemented by the similar action of
the lamps in the respective hoods |94.
While the invention has been described with
As stated above, the frosted surface of the plate
39 is in engagement with the plate 36 during the (i Ul respect to a certain particular preferred example
which gives satisfactory results, it will be under
focusing operation. Subsequently, when the
stood by those skilled in the art after under
light-sensitive sheet is disposed between the
standing the invention, that various changes and
plates 36 and 39, the active or coated side there
modiñcations may be made without departing
of engages the ,plate 35. The focal plane, then,
both for focusing and exposure, coincides with 70 from the spirit and scope of the invention and
it is intended therefore in the appended claims
the surface of the plate 35 which faces the plate
«to cover all such changes and modifications.
39. The plate 39 is biased toward the plate 36
What `is claimed as new and desired to be
and, therefore, besides serving in the focusing op
secured by Letters Patent is:
eration as described above, said plate 39 serves as
a compensating back for light-sensitive sheets 75 1. In a device of the character described, a
tubular support, pivo-ted legs at each end of said
support, means forming a detachable connection
ybetween the ends of said support, said means
comprising end sections of said support which
engage each other in telescopic relation, means
for alining said end sections, and mechanism for
releasably retaining said end sections in said re
lation, said mechanism comprising a rotatable re
taining member extending through said tubular
alining pin associated with said frame section
and said collar.
3. In a device of the character described, a
tubular support, pivoted legs at each end of said
support, said tubular support comprising sec
tions adapted to engage each other in telescopic
relation, and mechanism for drawing said sec
:tions toward each other and for retaining them
in said relation, said mechanism being operative
support and terminating exteriorly of one end 10 to release said sections so that each of the latter
thereof in an actuating wheel.
together with its pivoted legs becomes a sepa
2. In a device of the character described, a
rate unit.
support, means for holding said supporlt in a
4. In a device of the character described, a
horizontal position, a collar carried by said sup
tubular support, pivo‘ted legs at each end of saidr
port and having a fiat upper face, a frame seated
support, said tubular support comprising sec
on said collar face, means for detachab-ly secur
tions adapted to engage each other in telescopic
ing said frame to the iiat upper face of said co1
relation, and mechanism for retaining said sec
lar, said collar being the sole support for said
tions in said relation, said mechanism comprising
‘frame which extends substantially equal dis
a nut ñxed in one o1" said sections and a shaft
tances 'beyond the respective sides of said sup
rotatable in the other section, said shaft com
port, said last named means comprising a screw
prising a threaded section coactable with said
extending through the lower section of said frame
and being threaded into said collar, `and an
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