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1948-49 Theatre Catalog, 7th Edition, Page 421 (408)

1948-49 Theatre Catalog, 7th Edition
1948-49 Theatre Catalog
1948-49 Theatre Catalog, 7th Edition, Page 421
Page 421

1948-49 Theatre Catalog, 7th Edition, Page 421


A focusing knob on the front of the lens mount is easily accessible for adjustment from both sides of the proe jector.

Light Shu'Hers

Figure 8 shows the double shutter Brenkert 60. The Brenkert 60v projector mechanism is available with either one rear or one rear and one front shutter.

The chief advantage of using two light shutters instead of one is that approximately 20% more light is transmitted to the screen when two light shutters are used. Light flicker is also reduced to a minimum and picture definition is improved.

The rear light shutter on the Brenkert 60 mechanism is designed to provide adequate cooling of the film aperture.

Adjustments for increasing the width of the shutter blades are not necessary in this projector because of the largesize gears used for driving the shutters and because these gears are automatically and continuously lubricated. Wear, therefore, is negligible even after long periods of operation, so that back-lash between the shutter drive gears does not develop.

It is extremely easy to time the shutters on the Brenkert 60 mechanism. This adjustment can be made accurately without the use of any special tools. Vernier changes in the adjustment of the shutters can be made with the machine in

desirable method to use for framing, because the film is always supported by the film trap and gate shoes directly to the sprocket, eliminating any possibility of film napping, which would cause unsteady projection.

Lens Mouni-ing

The projector lens mount is designed to accommodate all standard makes of

projection lenses, as well as lens adapters used with series I and II projection lenses. The lens is held rigidly and firinly in both the front and the rear of the lens mount, so that the projection lens is always maintained in perfect optical alignment. The projection lens is easily removed for cleaning by simply loosening two knurled thumbscrews.


operation, by means of a micrometer adjusting screw located conveniently at the screen end of the projector.

SM PE Standards

The performance of all Brenkert pr0< jectors is within the published limits for projection standards established by the Society of Motion Picture Engineers.

I am celluloid, not steel; 0 God of the machine, have mercy. I front dangers whenever I travel the whirring wheels of the mechanism. Over the sprocket wheels, held tight by the idlers, I am forced by the motors might. If a careless hand misthreads me, I have no alternative but to go to my death. If the pull on the take-up reel is too violent, I am torn to shreds. If dirt collects in the aperture, my film of beauty is streaked and marred, and I must face my beholders-a thing ashamed and bespoiled, Please, if I break, donit attempt to fasten me together with pins or clips; simply stop the machine, and overlap the ends around the take-up reelea sufficient distance to holdethen proceed with the showing. Donit rewind me unless necessaryemy owner wants the privilege, so that he may examine me, heal my wounds, and send me rejuvenated upon a fresh mission.

I travel many miles in tin cans. I am tossed on heavy trucks, sideways and upside down. Please see that the paper band is wrapped snugly around me on the reel and fastened with a string, so that my first few coils do not slip loose in my shipping case, and become bruised and wounded beyond the power to heal. Put me in my own can. Scrape off all old labels on my shipping case so I will not go astray.

Speed me on my way. Others are waiting to see me. The next day is the last day I should be held. Have a heart for the other fellow who is waiting, and for my owner who will get the blame.

I am a delicate ribbon of filmemisuse me and I disappoint thousands; cherish me, and I delight and instruct the world.

From tillot'ion Pictures for Instruction" By A. P. Hollis, Dchy Corporation, Chicago

1948-49 Theatre Catalog, 7th Edition, Page 421