Matches 1 - 29 out of 29
Match Document Document Title
7138769 Device for operation of a high pressure discharge lamp and a projector device  
A device for operating a discharge lamp of the alternating current operating type has a high pressure discharge lamp with a silica glass discharge vessel in which a pair of opposed electrodes are...
6811265 Retractable image projecting system  
An image projecting system for mounting in a hidden location such as a ceiling or a piece of furniture such as a desk. The system includes an image producing apparatus and a plurality of optical...
5944404 Defined orientation slide projector and slides  
A film slide projector has a rail which engages a carousel in a complementary manner, such that a surface of the rail contacts a surface of each film slide in the carousel. Misoriented film slides...
5410377 Drum-type slide magazine  
A drum-type slide magazine having a compartment body (11) which surrounds a magazine hub (1) and includes a series of radially extending compartment walls (15) to form slide compartments (17). The...
3936169 Device for moving slides vertically in projectors  
The device is provided with a lever which is pivotally mounted at one end and is urged in the downward direction by a spring, a slide-carrying shoe being attached at the free end of the lever. The...
3697161 CIRCULAR TRAY SUPPORT AND INDEXING APPARATUS  
A unique elongated indexing means and bowed shaped tray supporting means for use in a slide projector to enable circular trays that are of different diameters to be rotatably supported on a common...
3675226 RADIO REMOTE CONTROL FOR A SLIDE PROJECTOR  
The present remote control system is for rotating a drum type magazine of a slide projector. A portable radio transmitter is employed for sending a signal, when operated, to said system for...
3661451 SLIDE PROJECTOR INDEXING MEANS  
The magazine includes an indexing gear engaged with a series of teeth on the projector for indexing the magazine in forward and reverse directions. The indexing gear is rotated in either direction...
3609025 SLIDE-CHANGING MECHANISM FOR A SLIDE PROJECTOR  
The projector includes a vertically disposed projection gate located adjacent one side of the projector housing. The housing has a top wall portion with a slot therein disposed over the gate for...
3499708 SLIDE PROJECTOR AND MAGAZINE THEREFOR  
3490838 OPTICAL SYMBOL DISPLAY APPARATUS  
3411845 Automatic slide projector  
3409360 Filmstrip producing device  
3392627 Projection system for producing the effect of a motion picture from a plurality of slide transparencies  
3344707 Topography indicator for aircraft  
3343454 Projecting apparatus having a rotary slide tray and a magnetic slide change mechanism  
3342103 Synchronizing unit for sound and still-picture presentation  
3339455 Picture projector apparatus with sound synchronized with projected images  
3298277 Globular image projector  
3296727 Random access projector  
3276314 Automatic slide projector  
3270448 Apparatus comprising a timing mechanism and an intermittent switching mechanism  
3225652 Remote control slide projector  
3217595 Device for positioning a rotatable member  
3056334 Projection device  
3048083 Auditory and visual advertising device  
2843951 Automatic transport system for slide projectors  
1006318 Title is not available  
3588243 Title is not available  
Matches 1 - 29 out of 29