US2083472A - Projection device - Google Patents

Description

June 8, 1937. L. E. REED rnomc'rmn DEVICE F Sheets-Sheet Filed June 13, 1935 June 8, 1937; L. E. REED 2,083,472

PROJECTION DEVICE v Filed Jun 13, 1955 2 Sheets-Sheet 2 I ran L "14 g tating the vertical 45 gular position Patented June' I937 um'rsn. STATES PATENT OFFICE 2.083.412 rnomc'rrou nnvicn Lawrence E. Reed, Washington, D. 0. Application June 13, 1935, Serial x. 26,474

Claims.

This invention relates to projection devices and has for its principal object the production of a simple and eiflcient means for facilitating the enlargement. the reduction, or the reversing 5 of a picture projected from the projection device.

Another object of this invention is the production of a simple and efilcient' means for facilitating the copying of a picture through the medium of a projection device ture may be thrown down upon a sheet upon which the copy is to be made in a desired size and desired position.

A still further object production of a simple and efficient projection device which may be known as a copy-composer,

the parts of which are constructed so as to permit the device to be knocked down or collapsed.

Another object of this invention is the production of a simple and efl'lclent means for faciliing'cabinet with respect-to the base;

Other objects and advantages of the present invention willappear throughout the following specification and claims.

In the drawings:-

Figure 1 is a perspective view ofthe projection device; 1

Figure 2 is a vertical sectional view through the projecting box .or cabinet showing a portion 30 of the supporting standard;'

Figure 3 is a vertical sectional view taken on line 8-3 of Figure 2;

Figure 4 is a horizontal section taken on line L4 of Figure 3;

Figure 5 is a rear box or cabinet showing a portion of the supporting standard;

Figure 6 is a vertical sectional view through the projecting cabinet illustrating the position 40 ofthe reflecting mirror for reversing the picture;

Figure '1 is a detail perspective view of one of the lid sections;

Figure 8 is a perspective view of the projection device showing the reflecting mirror in' its anfor reversing the picture before projecting the image through the lens; a Figure 9 is a perspective view of the body of the projecting cabinet or box in a foldedor collapsed position;

Figure 10 is a group perspective view of the end lid sections;

Figure 11 is a perspective the projecting box or cabinet; 1 55 Figure 12 is a perspective view of the lens tube:

whereby the picof this invention is the.

adjustment of the project- 1 elevation of the projectingview of the bottom of (Cl. six-#24) Figure 13 is an enlarged transverse sectional view taken on line i3--'-i3 of Figure 2;

Figure 14 is a plan view of the picture supporting panel.

By referring to the drawings, it will be seen 6 that designates the base which is preferably of a flat panel-like structure having a rectangular socket formed at one end intermediate its sides into which fits the lower end of the supporting standard. 22, this standard being locked in position by means of a locking screw 23. The supporting standard 22ris provided with a forwardly'extending inclined portion 24 which terminates in an upright portion 25, and the standard 24 is preferably of a channel iron structure substantially U-shaped in cross-section. The upright portion 25 is provided with spaced notches 26 for the purpose of receiving the teeth of the adjusting gear wheel 21 hereinafter described.

A projecting cabinet or box A is adapted to be supported upon the standard 22 and preferably comprises a rectangular structure constituting a back panel 28 and a front panel 29, these'front and back panels 20 and 29 being hmsedly con- 25 nected to the end panels 30 whereby the box or cabinet A may be collapsed as shown in Figure 9 to' be accommodated in a minimum amount of space for storage, shipment, 'or packing. The front panel 29 is provided with an offset com.- partment 32 directly opposite the compartment 3! of the rear panel 28.

A removable bottom 82 is adapted to flt over the lower edges of the panels or walls 28, 29 and 30. and to hold these panels in a set-up relation. the bottom 33 having upstanding flanges as which flanges are provided with inwardly punched portions 35 for frictional engagement withthe- panels 28, 29 and 30 and for assisting in holding the bottom in position. The bottom. 32 is provided with a centrally located depending annular flange 28 within which may be fitted the projecting lens tube 31 which tube. may be detachably secured to the flange through the medium of a bayonet slot and pinconnection. The 45 tube 21 may also be longitudinally slotted, as at 2!, to permit the lens 39 to be adjusted for obtaining the proper focus. Lamp bulb sockets N are carried by the bottom 22 upon opposite'sides of the-annular flange 28 and support illumlnat- 5o ing bulbs ll which may be electrically connected to any suitable source of electrical supply through the wires 42.

Lid sections 42 are removably secured and fltted over the top of the box or cabinet A at ,55

lid sections having depending flanges II 'which overlap upper edge portio'naof the side and'endf walls or panels oithe cabinets The flanges II are also provided with inwardly punched porto thepunchedmortions II to 15 ldapted'tobeswungat right anglestothelid .sectionll,eachplatell havinganangularly extending fl nge I along its inclined side and i thaledgeportion II along 30 the trout panel II andtowardthe rear panel it.

An operating'shait I2 is iournaled upon the In carrying out my invention! preferablyin a vertical position withss'placeamirrorIl intheoilsetcompartmcntiloitherearpanel II, the spring tongues II engaging the sides of the mirror and holding the same in aset positionnte F gure 13. .I also provide a pic- 50 ture-supporting panel II having a flnger tab II at one end and carrying picture-supporting clips I1 for supporting the picture or card II containing the illustration which is to be enlarged.-, note particularly Figure 14. When it is desired 5 to enlarge and reverse the picture as shown in Figure 14, the picture II is-placed upon the panel II and secured in position. This panel is then placed with the picture II iace downward so that the edges 01' the panel II may rest upon the shoulders u of the plates 41-1101 Figures 1 and 3. Die finger tab II of thepanel II will extend forwardly so that the panel may be easily handied and the picture II will'appear in a proper position. The mirror I4, when theparts are in 6 this position is 0! course inactive being in a vertically extended position. The light from the lamps II will illuminate the interior of the cabinet A and theimage will be focused through the lens'II and cast down upon the sheet 59 7 which may be secured in any suitable or desired manner to the upper face of the base 20. The image will then appear as illustrated in Figure 1 enlarged upon the sheet II but facing in an opposite direction or in a reverse position. 75 when it is desired to have the image appear tions assist'in holdingthe'lidaections II in when the ror I4 and down through the lens II, and will be s cast upon the sheet II as shown in Figure 8,

in thesame position and iacing in the-same div Y motion, as the picture which is being enlarged. -iorated, as at II. for ventilation the the panel II is placed'inthe position shown in Figure 8 within the front compartment I! standag in a vertical position, and the mirror II 5 the inclined flanges II.- picture It then will be reflectedv p n the miriacing nthe same direction as the picture It a as it appears upon the panel II. In other words. when a reverse picture is desired, the panel II is rested upon the ledge portions II and the mirror II is posltioned in an inactive vertical po-' 'sition,' the picture II facing downwardly. but' when a reverse picture is not desired, but it is desired to cast an image in the sameposition as the picture itself, the panel II is placed in sea vertical position within the compartment 32, i and the' mirror I4 is swung to an inclined position resting againstthe supporting flanges II' notel lgure6.

By noting Figure 5. it will be seen that the rear panel 2| is provided with an oifset channel portion II in which flt's the upper portion "of the standard 22 to constitute a track-way for connecting the cabinet or box I with the vertical portion II 01' the standard 2 v From the foregoing description, it will be seen that a .very simple and eiiicient device has been produced in the nature of a projection device ior throwing a reflection or image of a picture upon a sheet of paper in order that said picture may be traced upon said sheet. This device as stated aboveris so arranged that a picture may be enlarged, reduced, or thrown into reverse. By throwing the picture in reverse it will be obviousthat the picture may be thrown 40 or traced facing in I the opposite direction. Through thegmediumi oi the present device a picture post-card, magazine picture, or other ob- Ject maybe thrownor reflected upon a sheet of drawing paper i'cr'copying purposes in the manner as illustrated in Figures 1 and 8.

This device may be used commercially and may be built on a large scale for the purpose oi making posters or other pictures, or for producing a number of copies oi the same. device is especially useful in schools, clubs, and the like, where it is desired to place an illustration or flgure on a mimeograph for running ofl several copies. a

The device may also be used as a toy for teaching drawing and a picture ior example may be cast on adrawlng sheet for copying pur enlarged or reduced as desired and drawn on the paper below, and ii desired,v an image or figure may be cast upon the drawing sheet for copying purposes and then subsequently'a rural scene may also be cast for adding the scene to the picture being drawn. The picture may -be var merely by reversing the position 01' the figure to illustrate the figure going toward or away from the scene.- The scene. as well as'the image 01 the flg'ure, may be enlarged or reduced to give the desired eil'ect, audit is necessary of course wh composing by using two or more pictures that the eye level oi each picture be placed on the same line so that when the composite picture is finished. a proper perspective will be presented. a In other words, the background may be made iarge or small to give the effect oi its being close 7 The at hand or .far away, he used for teaching pleasure vin copying pictures tain fundamentals stand.

It should be understood that the device has considerable latitude in permitting the combinavertical position projecting means,

mentsfto be cast upon ,at an incline to the tion of a number of difleren't elements to provide allowing the diiferent elethe drawing sheet at difin this way permitting the a composite picture by ferent periods, and addition'from time of the picture to provide a desired composite scene or pictorial illustration. Y

Certain detail changes in the mechanical construction, combination and arrangement of parts may be employed without departing from the spirit of the invention, so long as such changes fall within the scope of the appended claims.

I claim:

l. A projection device comprising a projecting cabinet, means for projecting an image from said cabinet and located in the bottom portion of the projection position, an image-reversing mirror within said cabinet at one side thereof hingediy mounted at its lower end for movement from a to an inclined position over the an object carrier removable from said cabinet, means to support the carrier in a vertical position facing the mirror, means for supporting said reflecting mirror at an incline to the optical axis of the projecting means and centerof the object carrier, and means to'support the carrier in a horizontal position over the projector and at right angles to the mirror when the mirror is in a vertical image through optical alignment position and in opticalalignment with the projectln'gmeans. T

2. A projection device of the class described comprising a cabinet, a projecting lens carried by said cabinet and located in the bottom portion of the cabinet in a projection position, said cabinet having portions of its front and rear walls offset outwardly to form-pockets each open at its top and inner side, an object-supporting panel adapted to removably flt within one of said compartments whereby said panelmay stand in an upright position, a reflecting mirrorfltting into the other pocket and pivoted means for supporting said reflecting mirror at an incline to the optical axis of the projecting means and at an incline to the center line of the objectsupporting panel to cause the reflection of an I said lens in reverse, and means to support the panel in a horizontal podtion over the lens and at" right anglesto the mirrorand in when the mirror is in the upright position.

3. A projection.- device of the class described comprising a cabinet, a projecting lens carried by said cabinet and located in the bottom portion of the cabinet in a projection position, said cabinet having vertically extending compartments in its front and rear portions, an object-supporting panel removably may stand in an mirror carried by to time of certain elements ported on an incline at its lower end.

with said projecting means I supported by said cabinet and adapted to removably fit within one of said comsaid cabinet, said cabinet-having spaced removable lid -sections for closing and portions of its top and providing an opening therebetween, each lid section having 8. depending triangular portion provided with a longitudinally extending-panel supporting ledge upon which ledge said panel may rest in a horizontal position at right angles 'to the mirror and in optical alignment with said projecting lens, and said triangular portions havinginturned flanges to provide supports for said mirror whereby said mirror may be supwithin said cabinet and at an incline. to the optical axisof the'projecting lens and at an incline to the center line of the:

object-supporting panel when the panel is fitted into the said compartment of the cabinet.

4. A projection device of the class described comprising a cabinet, a projecting lens depending from said cabinet, said cabinet having verti-.

cally extending compartments in its front and rear portions, an object-supporting panel removably supported by said cabinet and adapted to removably flt within one of said compartments whereby said panel may stand in an upright position, a reflecting mirror carried by said cabinet, the mirror being hinged at its lower end for movement from a vertical position in the other compartment to an inclined position over the projecting lens, said cabinet having lid sections for closing and portions of its top, each lid section having a depending triangular portion provided with a longitudinally extending panel supporting ledge upon which ledge said panel may rest in a horizontal position, said triangular portions having lnturned flanges to provide supports for said mirror whereby said mirror may be supported at an inclined position within said cabinet, and said triangular portions having spring clips for engaging t edgeiof said mirror to hold the mirror in a vertical inactive position.

5. A projection device of the class described comprising a cabinet, a'projecting lens depending from said cabinet, said cabinet having portions adapted to removably flt within'one of said com-- panel may stand in an mirror carried by said cabinet in the other compartment and hinged at its lower end for movement out of the compartment-to a position across the cabinet at p'artments whereby said an incline to cause the re' ection of an image through said lens in reverse, said cabinet having lid sections for closing end portions of its top, each lid section having a depending triangular portion hinged thereto and provided with a horisontailyextending panel supporting ledge upon within its compartment.

LAWRENCE E. REED.

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