US1589493A

US1589493A - Stereopticon screen

Info

Publication number: US1589493A
Application number: US618632A
Authority: US
Inventors: Victor Alexander Ferdinand
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-02-12
Filing date: 1923-02-12
Publication date: 1926-06-22
Anticipated expiration: 1943-06-22

Description

A. F. VICTOR STEREOPTI CON SCREEN 5 Sheets-Sheet l Filed Feb. l2 1923 Z n@ M b) 4 u EL a @L L M y W c 2 0 M f a June 22 1926. 1,589,493

A. vlcToR l STEREOPTICON SCREEN Filed Feb. 12, 1923 3 Sheets-Sheet 2 June 22 192.6'. 1,589,493

A. F. VICTOR sTEREoPTIcoN SCREEN Filed Feb. l2. 1923 3 Sheets-Sheet 5 I' downv below the lower Patented June .22, 1.926.

UNITED STATES msnm 7 Lmnnna Immun vrcfroa, or navmron'r, Iowa STEBEOPTICON SCREEN.

Application led lFebruary 12, 1923. Serial No. 618,882.

My invention relates to stereopticon screens, and itsobject is to provide a screen that can be lutilized in the daytime as well as at ni ht, and which can be knocked down I and fol ed into a compact form and transported from place to place, and easily be set up anywhere for use. This I accomplish by the means hereinafter fully described and as articularly pointed out in the claims. In t edrawings:

Figure 1 is a perspective view of my 1nvention showing the stereopticcn in place. Figure 2 is a side view of the same folded, and with the stereopticon removed.

VFigure 3 is a longitudinal section taken *on dotted-

line

3, 3, Figure 4.

Figure 4, is a horizontal section taken on

dotted line

4, 4, Figure 3.

Figure 5 is 'a top view of the folded screen, drawn to the same scale as Figures 1 and 2.

Figs. 6 and 7 are sectional details showving respectively the manner of hinging the shelf at the front of the structure and for il supporting the arms at Vthe lrear. Fig. 8 is a detail of the lower support for the mirror. Fig. 9 is a vertical section on line 9-9 vof-F'g, 10. Fig. 10 is a detail of the upper l suport for the mirror. l0' e ferring to the drawings A represents a rectangular screen, the side members az, of the frame encll'ng whichA are exten ed down a sucient distance to form thefront" 'fof the 8 sidewalls that have their rear vertimd B, B, represent rec- Y kcal edges `formed with vertical ieces that areirectangular 'in cross-section t at are-exofthe same,thesame distanceasthe egslatoV form rear-legs l, 6. The legs b, b, are, pref- .erably, nearer together than thelegs, a, 0% and horizontal section form the angles `o a" quadrangle ligure. -The lscreen A is formed of translucent material that is suit- 46 ably secured ina' rectangular-frame, and the sidewalls are made of wood with'their Vtop and/bottom and rear sides; enclosed in a frame, the lparts of which'are, in crosssec Ltion, of su Stanti'allyxhe saine dimensions legs a., a, of looking at it from the front of the screen,-is

,. hinged ato' to the surface of vthe left v-hand leg, and the right hand Wall is hinged by a double hinge 8 to the front surface of the right hand leg, substantially as shown in Figure 4 of the drawings.

Wvhen folded theleft hand wall will fold flat against the rear of the screen, substantially as shown by the dotted line 9, and the right hand wall will fold fiat against the front of the screen into the position, shown in Figure 2 of the drawings. l f

At a short distance below the screen and sidewalls, the front legs a are connected b a cross-bar 11. The rear legs b, have longitudinal rails 13 permanently secured thereto, and the forward ends of lthese rails are connected by hinges, X, similar to 7 and 8 to front legs a, a.

Next the rear legs b, b, bars 13 are loosel connected by a transverse strip 14, the en s of which latter are clamped by a

flat springc'lamp

15, 15, and held in close contact with bars 13, and this transverse iece or strip 14 supports the rear vends of tlie rearwardly projectin

parallel arms

16, 16, whose forward en s pass under and are hinged to l0 cross-bar 11, and project forward beyond-1'` said'bar 1l and are connected by a transverse shelf 17. When folded upright parallel to the front le a the arms'may b e maintained thus by ookslandveyes 12, '12.. This vshelf is immediately in front of'saidy cross-bar 11 and ithas'acouple of guards,

18, 18, that consist` of wedge shaped strips, between which astereopticon C is placed.

This stereopticon C" ma be of any of the. well known type, althoug I'prefer it tobe cylindrical, and whenin position, it. is inclined so as to direct images as shown by dotted line 19 in F' 3 of the drawings, against the center o a mirror reflector 201 Mirror 20, is; preferably, rectangular-,and

is set and secured in an outsidefrectanulol frame of wood ,or metal. The upper ori,- zontal member 21 9i this reflector 1s hinged to the front edge of a'transverse'member 22, `the ends of which have studs 23 rojecting transversely therefrom, that have ads that f are adapted to catch behind thel verticalbi-l furcatlons 24 of vthe Asomewhat X-shaped plate 25, the portionAv of which below memv ber 22, is secured b "screws 26 or otherwise to the opposing aces' of. the rear l '11,] r near the upper edge -,of the side-wa B. The lower corners ofthe reflectorI 2O are provided with downwardly pmjecting bi nl furcated plates 27, and the bifurcations of these plates, when the reliector is set in place, are made to straddle the headed pins or screws, screwedfinto the opposing surfaces of said legs, at a point slightly above the plane of the lower members of the sidewalls.

Member 22 is such width that when the redactor is secured in the manner stated, it will incline forward from its upper end and will reect any image that may be projected thereto from the stereoptic'on, to the center of the screen, as shown by dotted line 29 in Figure 3 of the drawings.

By lifting member 22 so that, first, the studs 23 can be removed from between the bifurcations 24C of plate 25, and, second, by lifting the plate 27 of of pins 28, and, third, also by removing the cross-bar 11 from between the legs a, and withdrawing the rear ends of the

arms

16, 16, ofi' of the transverse strip 14, and, finally, by withdrawing said strip 14 from under the spring-clamps 15, the sidewalls B can be folded against the screen A in the manner hereinbefore stated. When this is done the shelf and the cross-bar 11 are folded against the folded screen and sidewalls and the reflector 20 is placed against the same, so as to make a dat package that can be easily clamped tcigether and transported from place to p ace.

What l claim as new is:

1. A screen structure for stereopticons comprising a. translucent` screen, a frame surrounding the same having its vertical members extending below the Same to provide legs, sidewalls hinged thereto and extending rearwardly therefrom the rear vertical members of which are extended down wards to provide legs, a reflector at the rear of the scree'ii between said sidewalls Y 2. A screen structure for stereopticonsl comprising a translucent screen, aframe surrounding the same having its vertlcal members extended below the same to provide legs,

sidewalls hinged thereto and extending rearwardly therefrom the rear vertical members of which are extended downwards to provide legs, a reflector at the rear of the screen between said sidewalls, and a shelf below the screen lfor supporting the stereopticon which latter is focused on said screen.

. 3. A screen structure for stereopticons comprising a translucent screen, a frame surrounding the same having its vertical members' extended below the same to provide legs, sidewalls hinged thereto and extending rearwardly therefrom the rearl vertical members of which are extended downwards to Iprovide legs, a reHector at the rear of the screen between said sidewalls and a movable shelf below the screen for supporting the Stereopticon which latter is focused on said screen.

4:. screen structure for Vstereopticons comprising a translucent screen, a frame surrounding the same having its vertical members extended below the same to. provide legs, sidewalls hinved thereto and extending rearwardly therefrom the rear vertical members of which are extended downwards to `provide legs, a reflector at the rear of the screen be'- tween said sidewalls, a cross-bar connecting the front legs below the screen, and a shelf upon which the stereopticon is placed and focused upon said screen.

5. A screen structure` for stereopticons comprising a translucent screen, a frame surrounding the same having its vertical members extended below the same to pro-v vide-front legs, sidewalls hinged thereto and extending rearwardly therefrom whose rear vertical members are extended downwards to provide rear legs, a reflector at the rear of the screen and between said sidewalls, a removable cross-bar connecting the front legs below the screen, and a shelf having a hinged connection to said bar upon which the stereopticon is Vplaced and focused upon said screen. t

6. A screen structure for stereopticons comprisin a translucent screen, a frame surrounding lie same having its vertical members extended below the same to provide front legs, sidewalls hinged thereto and extending rearwardly therefrom whose rear vertical members are extended downwards to provide rear legs, a reflector at the rear of the screen and between said sidewalls, a movable cross-bar connecting the front legs below the screen, longitudinal rails connecting said front legs and said rear legs, a shelf having a hinged connection to said bar upon which the stereopticon is placed and focused upon said screen, an arm projecting rearwardly from said shelf, a transverse piece resting upon said rails and upon which the rear portions of said arms rest.

7. A screen structure for stereopticons comprising -a translucent screen, sidewalls hinged thereto .and extending rearwardly' therefrom, a transverse member connecting the rear portions of said sidewalls, a re- Hector the`upper portion of which is connected to Said Vtransverse member, devices to which the lower portions of said reflector is connected, and means below said screen for supporting the stereopticon, which latter is focused on said screen.'

8. A screen structure for stereopticons comprising a translucent screen, sidewalls hinged thereto and extending rearwardly therefrom, aV transverse member removably connected to the rear portions of said sidewalls, a reflector the upper portion of which is hinged to said' transverse member, devices to which the lower part of said reiector is connected,. and means below said screen cated. plates secured to said rear legs, pins for supporting the stereopticon which latter projecting from the lower portion of said is focused on said screen. reflector that enter the s ace between said 9. A screen structure for sreo ticons bifurcations, and means low said screen comprising a translucent screen, si ewalls for supporting the stereopticon which latter ll hinged thereto and extending rearwardly` is focused on said screen. therefrom, a transverse member removably In witness whereof I have hereunto set connected to the rear portions of said sidemy hand this 6th day of Oct., 1922. walls, a reflector the upper portion of which 10 is'hinged to said transverse member, bifur- ALEXANDER FERDINAND VICTOR.