US2665133A - Apparatus for projecting luminous targets - Google Patents

Description

Jan. 5, 1954 v. N. GARRIDO 3 APPARATUS FOR PROJECTING LUMINOUS TARGETS Filed March 20, 1952 4 Sheets-Sheet 'l I I mmvrog. Vugdw Navarro Garmdv I I H 4 Sheets-Sheet 2 HIIH'H I l llllll V. N. GARRIDO APPARATUS FOR PROJECTING LUMINOUS TARGETS Jan. 5, 1954 Filed March 20, 1952 INVENTOR: Vaydw Navarro Garmda BY M @567 aezwg's'.

Jan. 5, 1954 v. N. GARRIDO APPARATUS FOR PROJECTING LUMINOUS TARGETS 4 Sheets-Sheet 3 Filed March 20, 1952 INVENTOR. Wig dab Navarro Garmclo Patented Jan. 5, 1954 UNITED STATES PAT ENT OFFICE APPARATUS FOR PROJECTING LUMINOUS TARGETS Virgilio Navarro Garrido, Madrid, Spain Application March 20, 1952, Serial No. 277,640

Claims priority, application Spain May 6, 1947 14 Claims.

The present invention relates generally to apparatus for projecting a movable luminous target upon a wall or screen, this application being a continuation-in-part of my co-pending application, Ser. No. 793,296, filed December 22, 1947, and now abandoned.

An object of the present invention is to provide apparatus for projecting a movable luminous target upon a wall or screen to simulate the homothetic or irregular paths of flight of pigeons or other game so that hunters or marksrnen may acquire training under conditions approximating those encountered in the field even when only limited space and time is available for such training.

Another object is to provide apparatus operative to project a movable luminous target against a wall or screen, which luminous target appears for spaced successive periods of varied duration and is made to follow or trace a substantial number of different irregular paths on the wall or screen during the successive periods of its appearance before such paths are repeated, so that a marksman, using the device for training purposes, will not be advised in advance as to the next path to be followed by the luminous target and will not be able to anticipate that path.

In accordance with the present invention the above objects are accomplished by providing apparatus comprising a light beam projector mounted for universal movement and adapted to form a luminous spot or target on a wall or screen surface, an energizing circuit for the light beam projector having a switch assembly therein for controlling the lighting and extinguishing of the projector, a first cam mechanism for actuating the projector controlling switch assembly so that the projector is operative to form the luminous spot or target only during spaced periods of varied duration, a second cam mechanism operative to produce horizontal movements of the projector, and a third cam mechanism operative to produce vertical movements of the projector, the third cam mechanism being formed with a number of cam portions each operative, during its initial action, to depress the axis of the beam projector to a predetermined horizontal line on the wall or screen and then to elevate the projector at varied angular speeds, the third. cam mechanism being driven in relation to the first cam mechanism so that the depression of the projector in each instance corresponds with the beginning of one of the periods of illumination, the second cam mechanism being formed with a number of cam portions each operative, during its initial action, to vertically align the axis of the projector with a respective one of a series of cage simulations applied on the wall or screen surface and then to cause horizontal swinging of the projector at varied angular speeds, the second cam mechanism being driven in timed relation to the first and third cam mechanisms so that the successive cam portions of the second cam mechanism are active during the periods of activity of the respective cam portions of the third cam mechanism. Thus. during any cycle or period of the apparatus, a cam portion of the second cam mechanism and a cam portion of the third cam mechanism will cause the projected luminous spot or target to follow an irregular path proceeding upwardly and laterally from a predetermined one of the cage simulations, while the first cam mechanism determines the duration of the luminous spot for that cycle or period of the apparatus. In order to produce a large variety of irregular paths, the number of cam portions on the third cam mechanism is preferably prime relative to the number of cam portions on the second cam mechanism. That is, the numbers of cam portions on the second and third cam mechanisms have no common divisor but the numeral 1, such as, for example, i and 5, 3 and 5, 2 and '7, 3 and 7, 4 and '7, 5 and 7, 6 and 7 etc., so that the number of different paths imparted to the luminous spot will be the product of the numbers of cam portions on the second and third cam mechanisms.

With the above, and other objects, features and advantages in view, the invention consists in the combinations, arrangements and structures of the several parts making up the illustrative embodiment described below and then more definitely set forth in the appended claims. The description is to be read in connection with the accompanying drawings, forming a part hereof, and wherein:

Fig. 1 is a perspective view showing apparatus embodying the present invention for projecting a movable luminous spot or target against the surface of a wall or screen;

Fig. 2 is a top plan view, partly broken away and in section, of the apparatus of Fig. 1, but with the projector removed;

Fig. 3 is a side elevational View, partly broken away and in section, of the apparatus of Fig. 2, but with a cover or housing about the apparatus and shown in section;

Fig. 4 is diagrammatic representation of the profiles of the several cams included in the apparatus and illustrating the operative relationship between these cam profiles; and

Fig. 5 is a side elevational view of a control assembly for controlling the illumination of the projector of Fig. 1.

Referring to the drawings in detail, and initially to Fig. 1 thereof, an apparatus embodying the present invention is there shown and generally indicated by the reference numeral ID. The apparatus I functions to project a beam of light against a wall or screen surface II having a plurality of cage simulations applied thereto, there being five cage simulations 0:, b, c, d and e in the illustrated example. The apparatus III, as seen in Fig. 3, includes a base I2 which may rest directly on the floor 01' other convenient supporting surface or may be provided with suitable legs. A standard I3 extends upwardly from the base I2, substantially at the center of the latter, and has a table I4 mounted thereon for rotation about a vertical axis (Fig. 3). A light beam projector I5, containing a suitable lamp and lens system for projecting the light in the form of a beam, is carried by an arm I6 which is mounted rockably on a horizontal pin II carried by the rotatable table I4 so that the projector I may swing both vertically and horizontally relative to the base I2 and is, in effect, capable of universal movement relative to the latter.

Rotation of the table I4 about its vertical axis of movement, and hence horizontal swinging of the projector I5, is effected by a cylindrical cam member I8 mounted on a horizontal shaft I9 which is journalled in suitable bearing brackets supported by the base I2. As seen in Fig. 2, the cylindrical cam I8 is formed with a portion I cc of increased diameter and a portion I827 of decreased diameter which are separated by an axially facing profile 2! of irregular configuration extending continuously around the cylindrical cam. An arm 22 extends radially from the table I4 and at its free end carries a follower member 23 in the form of a pin which is resiliently urged downwardly against the reduced diameter surface I8b of the cylindrical cam. A spring 24 is connected to the arm 22 and to a post 25 mounted on the base I2 to continuously urge the arm 22 in the direction pressing the follower member 23 against the profile 2I 'of the cam I8 so that as the latter is rotated the arm 22, table I 4 and projector I5 swing horizontally in response to the axial irregularity of the profile 2 I.

Vertical swinging of the support arm I6, and hence of the projector I5 fixed thereto, is effected by a radial cam 26 which is mounted on a horizontal shaft 21 journalled in suitable bearing brackets 28 carried by the base 1-2. A fan-shaped cam follower piece 29 extends fixedly from the support arm I5 and is formed with an edge portion, shaped as the segment of a circle, and adapted to ride on the periphery of the radial cam 26 during lateral or horizontal swinging of the table I4 and projector I5. A spring 39 is connected between the follower piece 29 and the table I4 to continuously urge the follower piece into engagement with the periphery of the radial cam 26 so that, as the latter is rotated, the varying radial dimensions of the cam will cause the piece 29, arm I5 and projector to swing vertically about the axis defined by the pin I! on the table I4.

The shafts I9 and 21, carrying the cams I8 and 23, respectively, are rotated by a common motor 3| in accordance with a particular 'synchronization that will hereinafter be described in 4 detail. In order to transmit the rotation of the motor 3| to the shafts I9 and 21, the motor shaft 32 has a worm 33 thereon meshing with a worm gear 34 on a drive shaft 35 extending between the shafts I9 and 21 and rotatably mounted in bearing brackets 36 carried by the base I2. Worms 31 and 38 are carried by the opposite ends of the drive shaft 35 and mesh with worm gears 39 and 40 on cam shafts I9 and 21, respectively.

In order to control the illumination of the projector I5, the energizing circuit for the lamp has a switch M (Fig. 5) interposed therein which is actuated by a cam 42 mounted on the shaft 21 to rotate simultaneously with the cam 26 and, by reason of the gearing described above. in timed relationship with the rotation of the cam I8. The switch 4| is preferably of the rockable mercury type and includes a tube 4Ia having contacts Mia and Me extending into the opposite ends thereof and mounted at its center on a shaft 43 which is journalled in bearing brackets 44 carried by the base I2. The shaft 43 also carries a radially extending finger 45 which, at its free end, rides against the periphery of the cam 42. A spring 46 is provided to urge the shaft to rotate in the direction pressing the finger 45 against the cam 42. The cam 42 is generally circular and is formed with a series of peripheral indentations I, 2', 3 and 4 separated by radially raised portions. When the cam 42 is positioned, as in Fig. 5, with a raised portion thereof engaging the finger 45, the tube 4Ia is inclined so that the mercury therein flows away from the elevated contact M0 to break the circuit to the lamp in the projector. When the cam 42 is rotated from its position in Fig. 5, so that one of the indentations I, 2', 3' or 4' receives the finger 45, the spring 46 rocks the shaft 43 to level the switch tube '4Ia thereby causing the mercury to bridge the gap between the contacts 4!!) and He, thus completing the circuit to the lamp of the projector I5. Thus, as the cam 42 is rotated, the lamp of the projector I5 is alternately illuminated and extinguished, the relative durations of the periods of illumination being determined by the relative circumferential lengths of the indentations I, 2, 3' and 4.

As seen in Fig. 3, cam 26, which controls the vertical swinging of the projector, is formed with an irregular periphery forming spaced radial peaks. In the illustrated example, such radial peaks are provided by four 'cam portions I, 2, 3 and 4 which extend over equal angular parts of the cam 26. The contiguous peripheries of the cam portions begin and end at radially outward points and therebetween dip radially toward the axis of rotation defined by the shaft 27. The cam 25 is dimensioned so that, when the follower piece 29 engages the high points of the peripheries at the beginning and end of each cam portion, the projector I5 is depressed to aim the axis of the latter at the horizontal line extending through the cage simulations a, b, c, d and e on the wall surface II, and so that, as the follower piece travels over the intermediate portions of the periphery of each cam portion, the projector is first elevated at a varied angular speed, by reason of the irregular configuration of the cam portion, and is then depressed again to its original position relative to the table I4 with its axis aimed at the line through the cage simulations.

In Fig. 4, the periphery 26a of the cam 26 is shown diagrammatically in a linear fashion with the distances between successive vertical lines 4'! representing the time for one cycle of the apparatus H). In the case of the cam 26, having four cam portions, that time for one cycle is the timerequired for the rotation of the cam through an angle of 90. Thus, during the first cycle, the cam portion l is active; during the second cycle, the cam portion 2; during the third cycle, the cam pcrtion3; during the fourth cycle, the cam portion 4; during the fifth cycle, the cam portion I; and so forth as the cam 26 proceeds in its second revolution.

As seen in Fig. 5, each of the indentations I, 2', 3 and 4' of the cam 42, controlling illumination of the projector, and the successive radially raised portion extends over an angle of 90. Since the cam (52 is fixed on the shaft 21 which carries the cam 26, it rotates at the same speed as the latter, and during each 90 turn of the shaft 21, constituting a cycle of the apparatus, the projector [5 will be illuminated for a period of duration determined by the circumferential length of the peripheral indentation then receiving the finger 45 on the switch shaft. In Fig. 4, the angularv relationship of cam 42 to cam 26 is illustrated. The periphery 42a of cam 42 is there shown in spread out or linear fashion with the leading edge of each identation I, 2', 3 and t is seen to be angularly aligned with the starting points of the related cam portions I, 2, 3 and 4 of the cam 26. Thus, whenever the axis of the projector is is aimed at the horizontal line passing through the cage simulations, the mercury switch will close the circuit to the projector lamp to illuminate the latter, and the lamp will continue illuminated for a predetermined period as the projector axis is elevated. When the finger 45 next contacts a raised portion of the cam 42, the switch it is rocked to circuit breaking position extinguishing the projector lamp for the remainder of the cycle while the projector axis is again depressed preparatory to the commencement of the next cycle. Since the cams 2t and 32 travel at the same angular speed, the indentations l, 2', and 4 of the latter will be respectively active during the cycles when the cam portions i, 2, 3 and 4 of cam 26 are operative.

In Fig. 4, the profile 2| of the cylindrical cam l8 controlling the horizontal swinging of projector I5 is shown in spread out or linear fashion and the synchronization between cam iii and cams 28 and 42 is there illustrated. The cam profile 21 is seen to include five cam portions 1'', 2", 3", 4 and 5" which are contiguous or joined end to end to completely encircle the cylindrical cam. The several cam portions of the profile 2| extend over equal angular parts of the cylindrical cam and, since there are five cam portions, each cam portion extends over an angle of 72. Since the spaces between the vertical lines 41 of the diagram of Fig. 4 represent cycles of the apparatus and since each cam portion of profile 2! extends between two adjacent lines ii, it is apparent that the cam i8 is rotated through 72 during the time that the cams 28 and 32 are simultaneously rotated through 90. This relationship between the rotational speeds of the cam I8 and the earns 26 and 42 is achieved by suitably proportioning the gears 31, 38, 39 and 4B which transmit the rotation of drive shaft 35 to the respective cam shafts l9 and 21.

The profile 2| of cylindrical cam I8 is formed sothat the projector axis will be in vertical alignment with selected ones of the cage simulaticns a, b, c, d and e at the beginning and end of each cycle of the machine. Thus, in the illustrated form, the profile 2| has a configuration operative, when the follower pin 23 engages the beginning of cam portion i" at the point C, to aim the projector IE3 at a vertical line passing through the cage simulation C on the wall ll. As the cam i8 is rotated and the follower pin 23 travels along the cam portion i", the projector will be swung horizontally at varied angular speeds, by reason of the irregular configuration of the engaged cam portion, and, when the pin 23 engages point d at the end of cam portion I, the projector will be aimed at a vertical line passing through cage simulation d. As the follower pin 23 travels along the successive cam portions 2", 3", d and 5", defined at the opposite ends of the points d and b. b and e, c and a, and a back to the starting point (3', respectively, the axis of the projector it will be successively aligned with vertical lines passing through the cage simulations cl, b, e, a and c, in that order. Since the cam portions slope in difierent directions and at different angles, the angular speed of horizontal swinging of the projector varies from cycle to cycle during each complete revolution of the cam it.

As seen in Fig. 4, the cam l8 is arranged on its shaft [9 relative to the earns 26 and 42 on the shaft 2'! so that the follower pin 23 will engage the starting point of a cam portion on cam profile 2! at the same instant that the follower piece 29 engages a high point at the beginning of a cam portion on the profile 26a of cam 26 and the finger es first is received in an indentation of the profile sic of the cam 42. Thus, at the beginning of each cycle of the apparatus, cams it and 26 will be positioned to aim the projector l5 horizontally and vertically at one of the cage simulations on the wall H, while cam a: will be positioned to simultaneously close the circuit for illuminating the projector lamp. As each cycle progresses, the projector is swung both vertically and horizontally at angular speeds depending upon the configurations of the pertions of the earns 26 and H3 then engaged by the respective followers, while the lamp of the projector continues illuminated for a predetermined period after the commencement of the cycle so that a luminous spot or target is projected onto the wall or screen surface I l which spot or target follows an irregular path extending upwardly and laterally from a cage simulation, as represented by the dotted line on the wall I l in Fig. 1. After the conclusion of the period of illumination, the cams i8 and 26 operate to swing the projector to a position aimed at another cage simulation for the beginning of the next succeeding operating cycle of the apparatus. Thus, the apparatus described above operates to project a movable luminous spot or target upon the wall surface at predetermined intervals, with the luminous target being made to appear during successive cycles at difierent cage simulations and to follow irregular paths from these cage simulations to approximate the homothetic paths of flight of pigeons or other game.

In order to obtain the greatest number of varied paths of travel for the projected luminous spot, without repetition, the number of cam portions on the cam 26, controlling vertical swinging of the projector, is prime relative to the number of cam portions on the cam it, which controls horizontal swinging of the projector. That is, the numbers of cam portions on the cams l8 and 26 have no common divisor other than the numeral i, such as, for example, four cam portions on the cam 26 and five cam portions on the cam l8 as in the illustrated embodiment; When the numbers of cam portions are prime relative to each other, the number of different paths of the luminous spot or target produced before repetition is the product of the number of cam portions on the cam l8 and the number of cam portions on the cam 26. In the illustrated example, the four cam portions on cam 26 and the five cam portions on cam 18 produce twenty different paths for the luminous target or spot before such paths are repeated. Referring to Fig. 4, which diagrammatically illustrates the relationship between the cams of the described apparatus for cycles I to XIII thereof, the coordination of the cam portions on cams l8 and 26 may be extrapolated for cycles 1 to XXI as follows:

Active Cam Portion of Com 26 From the above table, it can be seen that cam portion I of cam l8 and cam portion 1 of cam 26, which cooperate during cycle I of the apparatus to cause motion of the projector, are not again jointly active, until cycle XXI, and since the cam portions on each of cams l8 and 26 are all of different configuration, the paths of travel of the luminous targets projected during the twenty cycles will all be different from each other. Since the paths of travel of the luminous targets are varied, and only repeated after twenty cycles, the marksman using the described apparatus for training purposes cannot anticipate the path that any particular luminous target will travel and the conditions of training will therefore approximate those encountered in the field with live game as the target.

While the illustrated apparatus It has five cam portions on the cam l8 and four cam portions on the cam 26, it is to be understood that other numbers of cam portions having no common divisor other than the numeral 1 may be employed. For example, the numbers of cam portions on the cams I8 and 26, respectively, may be 5 and 2, 5 and 3, 7 and 2, '7 and 3, 7 and 4, 7 and 5, 7 and 6 and so forth, and in each case the total number of different paths of the projected luminous target will be the product of the numbers of cam portions. The variations in the paths followed by the projected luminous target may be further increased by providing for the easy removal of the cams l8 and 26 from their respective shafts so that other cams having different configurations may be substituted therefor. However, when cams having different configurations and different numbers of cam portions from those illustrated are used, it is to be under- 8 stood that the gear ratios of the transmission to shafts l9 and 21 are adjusted so that a cam portion on each cam is active during the same period.

The motor 3| is preferably of the variable speed type so that the time for each cycle of the apparatus may be adjusted. Thus, at the beginning of a training program, the motor may be slowed down so that the movements of the luminous target are correspondingly reduced in speed, and, as the trainee becomes more proficient, the speed of the motor is increased until the luminous target movements correspond in speed to the movements of the fastest game birds likely to be encountered in the field.

The described apparatus may be enclosed within a suitably shaped cover or housing 48 (Fig. 3) having an opening 49 at the top through which the arm I6 supporting the projector extends.

In connection with the above described apparatus for projecting a movable luminous target upon a screen or wall surface, the marksman uses a weapon 50, such as, the rifle illustrated in Fig. 1, having a light beam projector 5| mounted thereon to project a beam of light parallel to the axis of the barrel. The energizing .circuit for the projector 5| includes a switch (not shown) which is closed by pressure on the weapon trigger so that the projector 5| forms a light spot on the screen surface ll whenever the trigger is pulled to indicate the aiming point of the weapon. Thus, the trainee may determine from the relative positions of the luminous target and the luminous spot indicating the aiming point whether or not the simulated shot has been accurate, and if not, to what extent correction is required.

Having described a preferred embodiment of my invention by way of illustration, it is to be understood that the present invention is not limited to the specific structure thereof, and that changes and modifications may be effected therein, obvious to one skilled in the art, without departing from the scope of the invention as defined in the appended claims.

What I claim is:

1. In combination with a target surface hav-- ing a cage simulation thereon; apparatus for projecting a moving beam of light to form a moving luminous target on said surface simulating the flight of game released from said cage simulation and comprising a universally movable light beam projector, means operative to initially aim said projector at said cage simulatien and then to swing said projector vertically and horizontally at varying angular speeds so that the luminous target follows a predetermined irregular path on said surface, and means for controlling the illumination of said light beam projector synchronously with said projector swinging means and operative to extinguish said light beam projector a predetermined period after aiming of the latter at said cage simulation.

2. In combination with a target surface having a cage simulation thereon; apparatus for projecting a moving beam of light to form a moving luminous target on said surface simulating the flight of game released from said cage simulation and comprising a universally movable light beam projector, first cam and follower means operatively connected to said projector for swinging the latter horizontally at varying angular speeds through a position aimed at a vertical line extending through said cage simulation. second cam and follower means operatively connected to said projector for swinging the latter vertically at varying angular speeds and actuated in synchronism with said first cam and follower means to aim said projector at a horizontal line extending through said cage simulation when said projector is aimed at the vertical line extending through the cage simulation, and cam operated switch means actuated in synchronism with said first and second cam and follower means and operative to illuminate said light beam projector when the latter is aimed horizontally and vertically at said cage simulation and to extinguish said light beam projector a predetermined period after the latter is so aimed.

3. In combination with a target surface having a cage simulation thereon; apparatus for projecting a moving beam of light to form a moving luminous target on said surface simulating the flight of game released from said cage simulation and comprising a universally movable light beam projector, first cam and follower means operatively connected to said projector for swinging the latter horizontally at varying angular speeds through a position aimed at a vertical line extending through said cage simulation, secnd cam and follower means operatively connected to said projector for swinging the latter vertically at varying angular speeds through a position aimed at a horizontal line extending through said cage simulation, switch means for controlling the illumination of said projector, third cam and follower means operatively connected to said switch means for actuating the latter to illuminate the projector during spaced intervals of varied duration, and drive means for said first, second and third cam and follower means operative to coordinate the latter so that said projector is aimed simultaneously at the horizontal and vertical lines extending through said cage simulation and so that each interval of illumination of the projector commences when the latter is so aimed.

4. In combination with a target surface having a plurality of cage simulations thereon; apparatus for projecting a moving beam of light to form a moving luminous target on said surface simulating the flights of game released successively from said cage simulations and comprising a universally movable light beam projector having a light source therein, first cam and follower means operatively connected to said projector for swinging the latter horizontally at varied angular speeds and through successive positions in which said projector is aimed at vertical lines extending through said cage simulations, second cam and follower means operatively connected to said projector for swinging the latter vertically at varied angular speeds and through successive positions in which said projector is aimed at horizontal lines extending through said cage simulations, and means synchronously driving said first and second cam and follower means so that said projector is aimed at the horizontal line extending through a cage simulation whenever the projector is aimed at the corresponding vertical line extending through the same cage simulation.

5. The combination according to claim 4; wherein said apparatus further comprises switch means for controlling the illumination of said light source in the projector, and third cam and follower means operatively connected to said switch means for actuating the latter to illuminate said light source during spaced intervals of varied duration, said driving means being connected to said third cam and follower means for operating the latter in synchronism with said first and second cam and follower means so that each interval of illumination of said light source commences when said projector is aimed at the horizontal and vertical lines extending through a cage simulation.

6. In combination with a target surface having a plurality of cage simulations thereon; apparatus for projecting a moving beam of light to form a moving luminous target on said surface simulating the flights of game released successively from said cage simulations and comprising a universally movable light beam projector having a light source therein, means operative to swing said projector vertically and horizontally at varying speeds and through successive depressed positions each of which is aimed at a related one of said cage simulations, and means controlling the illumination of said light source in synchronism with said projector swinging means so that said light source is illuminated for spaced intervals of varied duration, each of said intervals commencing when said projector is in a related one of said positions and terminating before said projector arrives at the next successive one of said positions.

'7. In combination with a target surface having a plurality of horizontally aligned cage simulations thereon; apparatus for projecting a moving beam of light to form a moving luminous target on said surface simulating the flights of game released from said cage simulations in a predetermined order and comprising a universally movable light beam projector having a light source therein, first cam and follower means operatively connected to said projector for swinging the latter horizontally at varying angular speeds through positions in each of which said projector is aimed at a Vertical line extending through a related one of said cage simulations, second cam and follower means operatively connected to said projector for oscillating the latter vertically at varying angular speeds, the limit of the vertical oscillation of said projector in the downward direction being a depressed position in which said projector is aimed at a horizontal line extending through said cage simulations, and drive means for said first and second cam and follower means operative to coordinate the latter so that said projector is in said depressed position of its vertical oscillation whenever the projector is in any one of said positions of horizontal swinging aimed at vertical lines extending through the related cage simulations.

8. The combination according to claim '7; wherein said apparatus further comprises switch means for controlling the illumination of said light source in the projector, and third cam and follower means operatively connected to said switch means for actuating the latter to illuminate said light source during spaced intervals of varied duration, said drive means being connected to said third cam and follower means for operating the latter in synchronism with said first and second cam and follower means so that each interval. of illumination of said light source commences when said projector is aimed simultaneously at a vertical line extending through a related cage simulation and at the horizontal line extending through said cage simulations and terminates before said projector is again so aimed.

9. In combination with a target surface having several horizontally aligned cage simulations thereon; apparatus for projecting a moving beam of light to form a moving luminous target on said surface simulating the flights of game released one at a time from each of said cage simulations in a predetermined order and comprising a universally movable light beam projector having a light source therein, means operatively connected to said projector for swinging the latter horizontally and including a first cam member having as many cam portions thereon as there are cage simulations on said wall surface, each of said cam portions on the first cam member being formed to effect swinging of said projector at varied angular speeds between two positions in which the projector is aimed at vertical lines extending through two related cage simulations, means operatively connected to said projector for swinging the latter vertically and including a second cam member having a plurality of cam portions thereon each of which is formed to effect swinging of said projector at varied angular speeds upwardly from a position aimed at a horizontal line extending through said cage simulations and then downwardly to said position aimed at said horizontal line, and driving means synchronously operating said first and second cam members so that each of said cam portions of the first cam member is effective for the same time interval as a related and simultaneously effective cam portion on said second cam member, where by said projector is aimed at a predetermined cage simulation at the beginning and end of each time interval.

10. The combination according to claim 9; wherein each of the cam portions of said first cam member and of said second cam member is of a configuration which is different from the configuration of all of the other cam portions of the related cam member so that, during the simultaneous effectiveness of each cam portion of said first cam member and a corresponding cam portion of said second cam portion, said projector will be caused to swing in a course which is difierent from the swinging course followed by the projector during the simultaneous effectiveness of any other cam portions on said first and second cam members.

11. The combination according to claim 10; wherein the number of cam portions on said second cam member is prime relative to the number of cam portions on said first cam member so that the number of different courses followed by the projector during its swinging is the product of the numbers of cam portions on said first and second cam members.

12. The combination according to claim 11; wherein said first cam member has five cam portions of different configurations and said second cam member has four cam portions of different configurations so that the luminous target formed intermittently on the wall surface traces twenty different paths on the latter before repeating such paths.

13. The combination according to claim 9; wherein said apparatus further comprises switch means for controlling the illumination of said light source in the projector, switch actuating means operatively connected to said switch means for actuating the latter in a manner to effect illumination of said light source during spaced periods of varied duration less than the length of said time intervals, said driving means operating said switch actuating means in synchronism With said first and second cam members so that the illumination of said light source commences at the beginning of each of said time intervals and terminates before the end of the respective time interval.

14. The combination according to claim 13; wherein said switch actuating means includes a third cam member having as many cam portions thereon as there are cam portions on said second cam member, each of said cam portions on the third cam member being effective for the same time interval as a corresponding cam portion on said second cam member and having an initial part operative to actuate said switch means to a light source illuminating position and a concluding part operative to actuate said switch means to a light source extinguishing position.

VIRGILIO NAVARRO GARRIDO.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 2,174,813 Younghusband Oct. 3, 1939 2,335,257 Binks Nov. 30, 1943 2,347,657 Binks May 2, 1944 2,569,594 Aagesen Oct. 2, 1951 FOREIGN PATENTS Number Country Date 645,372 Great Britain Nov. 1, 1950

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