Letters Patent is: 1. Aii optical instrument automatically to change lcaleidoscope slides and enlarge the visual appearance of the same comprising a base, a light source and a reflector moi.inted on the base, a disc having a pltirality of radially disposed slide openings, said disc beidg rotatably mounted on the base with said openings alignable seriatim with light from the light source, a plurality of kaleidoscope slid-,s removably mounted on the disc over said openings, kaleidoscope viewing material movably mounted in the kaleidoscope slides, a kaleidoscope tube having a front opening and a rear opening movably and adjustably mounted in front of said disc aligned witli light from said light source, and arL enlarging and projectiiig lens system movably and adjustably mounted at the front op-.ning of the ]@aleidoscope tube, a second light source and reflector and a second disc rotatably mounted on the base with a pluratity of radially disposed slide openings alignable seriatim with light from said second light source, a pltirality of transparency slides removably molinted on said second disc over said slide openings therein, an e,ilarging projection tube and le@is system movably and adjustably mounted in froit of said second disc and aligned with light from said second light source, said two lens systems being adapted and disposed to focus on a sin.-le screen. 2. An optical instrument automatically to change kaleidoscope slides and enlarge the visual appearance of the same @omprising a base, a light source and a reflector mounted on the base, a disc having a plurality of radially disposed slide openings, said disc being rotatably mounted on the base with said openings alignable seriatim with light from the light source, a plurality of kaleidoscope slides removably mounted on the disc over said openings, kaleidoscope viewing material movably mounted in the kaleidoscop-- slides, a kaleidoscope tube having a front opening and a rear opening movably and adjustably mounted in front of said disc alinged with light from said ligbt source, an enlarging and projecting lens system movably and adjustably mounted at the front opening of the kaleidoscope tube, a second light source and reflector and a second disc rotatably mounted on the base with a plurality of radially disposed slide openings alignable seriatim with light from said second light source, a plurality of transparency slides removably mounted on said second disc over said slide openings therein, an en. 2,757,570 4 larging projection tube and leias system movably and adjustably mounted in front of said second disc and aligned with light from said second li.-ht source, said two lens systeins being adapted and disposed to focus on a single screen, and means simultaneously and synchronically to drive the two discs. 3. An optical instrument automatically to change kaleidoscope slides and enlarge the visual appearance of the same comprising a base, a light soil-ree and a reflector 10 mounted on the base, a disc havid.- a plurality of radially disposed slide openings, said disc being rotatably mounted on the base with said openings alignable seriatitn with light from the light source, a plurality of kaleidoscope slides removably mouiited on the disc over said openings, 15 kaleidoscope viewing material movably mounted in thekaleidoscope slides, a kaleidoscope tube having a front opeiiiiig and a rear opening movably and adjustably mounted in front of said disc aligned with light from said liglit source, an enlar.-ing and projectin.- tube and 20 lens system movably and adjustably mounted at the front opening of the kaleidoscope tube, a second light source and reflector and a second disc rotatably mounted on the base with a plurality ol'L radially disposed slide openings alignable seriatim with light from said second light 25 source, a plurality of transparency slides removably Tnounted on said second disc over said slide openings therein, an enlargin.- projection tube and lens system movably and adjustably raounted in front of said second disc ind aligned with light from said second light source, 30 said two lens systems being adapted and disposed to focus on a single screen, and means simultaneously and synchronically to drive tlie two discs, said means being a plurality of meshing teeth on the peripheries of the two discs. 35 4. An optical instrument automatically to change kaleidoscope slides and enlarge the visual appearance of the same comprising a base, a light source and a reflector mounted on the base, a disc haviii,- a plurality of radially disposed slide openings, said disc being rotatably mount40 ed on the base with said openings alignable seriatim witli liglit from tlae light source, a plurality of kaleidoscope slides reinovably molinted on the disc over said openings, kaleidoscope viewing material movably mounted in the kaleidoscope sl-ides, a kaleidoscope tub@- having a front opeiiing and a rear openi-ng movably and adjustably 45 mounted in front of said disc aligned with light from said light source, and -,in enlarging and projecting lens system movably and adjustably mounted at the front opening of the kaleidoscope tube, a second li,-ht source and reflec50 tor aiid a second disc rotatably mounted on the base with a plurality of radially disposed slide openings alignable seriatim with light from said second light source, a plurality of transparency slides rer@,iovably mounted oli said second disc over said slide openings therein, an enlarging projection tlibe and lens system movably and adjustably 55 in front of said second disc and ali-ned with light from said secord light source, said tubes and lens systems bein.- adapted and disposed to focus on a single screen, said transparency slides containing a 'variety of advertising and educational subject matter and being disposed 60 and arranged on said second disc in a prearranged sequence. 5. An optical instrument automatically to change kaleidoscope slides and enlarge the visual appearance of 65 the same comprising a base, a light source and a reflector mounted on the base, a disc having a plurality of radiary disposed slide openings, said disc being rotatably inounted on the base with said openings alignable seriatim with light from the light source, a plurality of kaleidoscope 70 slides removably mounted on the disc over said openings, kaleidoscope viewing material movably mounted in the kaleidoscope slides, a kaleidoscope tube having a front opening and a rear openitig movably and adjustably mounted in front of said disc aligned with light from said 75 light source, enlarging and projecting tubes and lens sys-

5 tems movably aiid adjustably mounted at the front opening of the kaleidoscope tube, a second light source and reflector alid a second disc rotatably mounted on the base with a plurality of radially disposed slide openings alignable seriatim with light from said second light source, a plurality of transparency slides removably mount@-d on said second disc over said slide openings therein, an enlarging project;on tube and lens movably and adjustably mounted in front of said second disc and aligned with light from said second light source, said tubes and lens systems bei-.lg adapted and disposed to focus on a single screen, said transparency slides containing a variety of advertising and ediicational subject matter and being disposed and arranged on said second disc in a prearranged sequence, and drive means automatically to rotate the discs and align the openings therein seriatim with light from the light source. 6. An optical instrument automatically to change kaleidoscope slides and enlarge the visual appearance of the same comprising a base, a light source and a reflector mounted on the base, a disc having a plurality of radially disposed slide openins, said disc bein.- rotatably mounted on the base with said openings alignable seriatim with lil-ht from the li.-ht source, a plurality of kaleidoscope slides removably mounted on the disc over said openings, k-aleidoscop.- viewing material movably mounted in the kaleidoscope slides, a kaleidoscope tube having a front opening and a rear opening movably and adjustably D.iounted in front of said disc aligned with light from said light source, enlarging and projecting lenses movably and adjustably mounted at the front opening of the kaleidoscope tube, a second light source and reflector and a second disc rotatably mounted on the base with a plurality of radially disposed slide openings alignable scriatim with light from said second light source, a plurality of transparency slides removably mounted on said second disc over said slide openings therein, an enlarging projection tube and lens system movably and adjustably mounted in front of said second disc and aligned with li.-ht from said second light source, said tubes and lens systems being adapted and disposed to focus on a -2,7,-) 7,570 6 single screen, said transparency slides containing a variety of advertising and educational subject matter and being disposed and arranged on said second disc in a prearranged sequence, drive means automatically to rotate the disc and align the openings therein seriatim with light from the light source, and means intermittently to start and stop the drive means to dispose and hold said slides periodically between the light source and the enlarging tube. 10 7. An optical instrument automatically to change kaleidoscope slides and enlarge the visual appearance of the same comprising a pair of superposed tubular projectors having projecting and enlarging lenses, each having a light source and reflector therefor, a pair of aligned 15 discs rotatably mounted on the projectors behind said lenses and between the lenses and the li-ht source and disposed perpendicularly to the axes of the projectors, means simultaneously and synchronically to rotate the discs, said discs each having a plurality of slide openings radial20 ly disposed and adapted seriatim to be positioned by the rotation of the disc in alignment with one of the lenses and with light from the light source for said lens, a plurality of slides removably mounted in the slide openings, said slides for one disc having kaleidoscopic viewing ma25 terial loosely mounted therein, and a kaleidoscope mounted between the lens and disc of the projector having the disc with kaleidoscopic viewing material slides. References Cited in the file of this patent 30 UN ITED STATES PATENTS 1,91 4,562 Fre eland -------------- June 20, 193 3 2,03 8,909 Smi th et al - ----------- Apr. 28, 193 6 2,09 9,904 Pen nington et al --------- Nov. 23, 193 7 35 2,29 7,767 Hun t ------------------ Oct. 6, 194 2 213 07,202 Edd y ------------------- Jan. 5, 194 3 2,55 3,005 Reg an ----------------- May 15, 195 1 FOREIGN PATENTS 40 235,994 Great Britain ------------ July 2, 1925 434,763 Germany ------------ Sept. 29, 1926 533,765 Germany -------------- Sept. 18, 1931

1 5 7 , 7 United States Patent Office FaLented Aug. 7, 1956 2,757,570 AUTOMATIC KALFIDDSCOPE AND ENLARGLNG 5 PROJEQ CTION DEVICE Steven Moh-iar, New York, N. Y. Applicat@op- November 18, 1954, Serial No. 469,630 10 7 Claims. (C]. 89-24) This inventiorl relates to new and useftil improvements 1 5 in optical instruments combining or incorporating a kaleidoscope and an enlargiii.@ projection tube. More parti-.tilarly, the present invention proposes the construction of an optical instrliment automatically to change kaleidoscope and other tra-@isr)arency slides and to 20 enlarge the visual appearance of tiiem in a novel and convenient manner. As a further object, the preseit invention proposes ,forming the instrument with two I;ght sotirces and a pair of rotatable discs having a Dlurality of slide openings 2 5 automatically and syrichronically to be disposed seriatim in front of one of the 1-ighL sources and providing a plurality of slides and a kaleidoscope for one disc for projection of kaleidoscopic materiz-.', and another plurality of slides and a projection t@,ibe for the other disc for pro- 0'0 jection of other visual matter. Another object of the preseilt irvertion proposes constructing the instrument with a projector and a kaleidoscope each having a project-Ion a-@id an enlarging lens system so that photo_graph transparency or any other 05 visual matter slides arranged in a predetermined sequence may be Drojected sir@it,.Itanco-,isly or alternately on the same screcn or stirface as the kaleidoscope material. For further comprehens4on of the invention, and of the objects and -,dvantag,-s thereof, ref,-rence is made to 40 the foll.-wing description ard accompanying draw;ngs, and to the aD ended claims in which the various novel p features of the invent;on a.-e more particularly set forth. In the accompanyin.- draviin,-s forning a material par, of this d;sclosure: 4 5 @ig. 1 is a's;de clevatio:,al view, partly diagrammatic, with parts broken t-iay and shown in s,-ction, of an optical instriment constructed and arra-@iged in accordance with the preseit invention. , Fig. 2 is a plan view of one of the discs xith sl@*@des ti o shown in Fig. 1. Fig. 3 is a view similar to Fig. 2 but showing the cther d,'@se with slides thercon. Fig. 4 is a cross-sectional view of one of the slides shown in Fig. 2. 55 Fig. 5 is an end view taken on the line 5-5 of Fi1. Fig. 6 is a sectional v-lew taken on the line 6-6 of Fig. 1. Referring more particularly to the dra@,vings, the apparatlis or optical instrument is designated generally by 60 the referepee numeral 15. Instrument 15 has a basc 16 with uprights 17 and a number of cross shelves 18. In add-tion, a screen holding base portion 16' may be provided separate from the base 16, as shown in Fig. I or movably connected 6 ,5 with it. Mounted on one of the base uprights 17, as by a bolt 19, is a hollow sleeve 20 having a rear end 21 and an open front end 22. Mou--ted in the sleeve 20 adjacent the rear end '@i is a parabolic reflector 23 and 70 mounted in front of the reflector 23 in the sleeve 20 is an electric light bulb 24 suitably connected with a 2 power source (not shown) by wires 25 and 26 to provide a light source. An electric motor 27 is mounted on the top shelf 18 of the base 16 and suitably connected with a power source by wires 28 and 29. Motor 27 has a motor shaft 30 on the front end of which is mounted a disc 31 having a plurality of radially disposed slide openings 32. The disc is vertically disposed with relation to the horizontally disposed sleeve 20 and the peripheral marginal portion of the disc is aligned with and covers the sleeve front open end 22. The slide openings 32 in disc 31 are alignable seriatim with the open front end of the sleeve and hence with light from the light source 24 as the disc is rotated. A plurality of kaleidoscope slides 33, 34, 35 and 36 are provided for the disc and adapted removably to fit in the slide openings 32. While only four slides and slide openings are shown, it is apparent that more can be provided. Each kaleidoscope slide is provided with spaced transparent walls 37 and 33 and st)ring slide opening engaging members 39 and contains different kaleidoscope viewing material. For example, slide 33 may contain sparkting matter 40; slide 34, crystals or finely divided pieces of plastic 41; slide 35, rhinestones 42; and slide 36, oil and w@iter 43. Various substances may be used and the slides may be arranged on the disc in any desired predetermined sequence. All kaleidoscope viewing material is loosely or movably mounted in the slides. A kaleidoscop-. tube 44 having a front opening 45 aiid a rear opening 46 and the tisual mirrors 47 is motinted on one of the shelves 18 Nvitli the rear odei-iing 46 disposed in front of the disc 31 and aligned with the slide openings 32 as the disc is rotated and the slide openings come into ali.-nment with the front open end 22 of the sleeve 20. In this manner, the kaleidoscope 44 is aligned with light from the light source through the slides. An enlarging and projecting lens system 47' movably and adjustably mounted in a tube 48 is disposed at the front opening 45 of the kale;doscope 44 and a screen 49 is provided on base portion 16' spaced from the lens system 47' for projectiig kaleidoscopic ima.-Cs thereon. A stoppin- device 50 of any converi-tional tylie rnay bc,, provided to stop the motor and the disc and liold the slides periodically betvveen the light source a,id the -kaleidoscope tube. A second sleeve 51 is mounted beneath the sleeve 20 on a lower shelf IS and bolted to one of the bise uprights by bolt 52. The second sleeve 51 contains a reflector 53 and a light bulb 54 connected by wires 55 and 56 with a power source. The front end 58 of sleeve 51 is open and the rear end 59 may be closed except for the necessary opening for wires 55 and 56. Mounted below the sleeve 51 on one of the sbeives 18 is a bearing or pillow block 60 rotatably holding a shaft 61 to which is fixed a second disc 62 similar to disc 31 but of large diameter. Disc 62 contains a plurality o radially disposed slide openin.-s 63 which are alignable with the front open end 58 of sleeve 51, and hence with light from the light sourc.- 54 thereiii, as the disc is rotated. A plurality of transparency slides 64, 65, 66, 67, 68 and 69 are removably mounted on the disc 62 over the slide openings 63. Again while only six slid.-s and @lide openings are shown, more may be provided. The slides 64-69 may contain any visual matter, educational -or advertisement, arranged in a predetermined sequence. For example, one transparency slide may contain a question and the next the answer to that que3tion with advertisement matter wisely spaced and interspersed among the picture or other slides. An enlarging and projection tube 70 is mounted in front of the disc 62 and aligned with the open end 58

3 of sleeve 51 and with light from the light source 54 when one of the transparency slides are disposed in front of the open end 58 of sleeve 51. Connected with tube 70 is a lens holding tube 71 in which adjustably and movably mounted is a lens system 72. The lens systems 72 and 47' and the tubes 70 and 44 are adapted to focus on and project images on the same screen 49. Discs 31 and 62 are providcd with peripheral meshing teeth 73 and 74, respectively, arranged so that the discs are driven together sin-iultaneously and synchronically. Other well-known means, such as belts and pul@leys or the like (not shown) may be used instead of teetl-l, however, for such driving. The discs can also be connected directly to separate motors in order to get the desired sequence of the different pictures. The two tlibes 44 and 70 can also be arranged to bc inclined at varioiis angles so that the device thus may be used outdoors and for various size displays, for toys and for all suitable purposes. It is to be understood that any conventional ka,leidoscope tvibe and eialarging projection tube may be used. While I have illustrated and described the preferred embodiment of my invention, it is to be understood that I do not Iii-nit myself to the precise construction herein disclosed and the right is reserved to all changes and modifications comin.- within the scope of the invention as defined in the appended claims. Having thus described my invention, what .1 claim as new, and desire to secure by United States