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1950-51 Theatre Catalog, 9th Edition, Page 444 (420)

1950-51 Theatre Catalog, 9th Edition
1950-51 Theatre Catalog
1950-51 Theatre Catalog, 9th Edition, Page 444
Page 444

1950-51 Theatre Catalog, 9th Edition, Page 444

ROLLING AND DRAGGING will fill and press down the frost expansion damage of the winter freezing

and thawing. Pot holes that resist this should be cut out and patched with new foundation and surface.

the job of reconditioning the equipment preparatory for reopening requires coordinated planning. The drive-in exhibitor should guard against establishing a time schedule too short to give the proper attention to the necessary Work which must be performed.

First of all, let us assume that reasonable care was exercised at the time the equipment was shut down for the season. If the precautionary steps were taken, the problem of reconditioning the drivein equipment is relatively routine, and the equipment should be back in normal operating condition without too much trouble or expense. If, however, little or no attention was given to the equipment at the time of shutdown, considerably more work must be done, and much of the equipment will have to be completely overhauled; in some cases, it will have to be replaced.

Ventilation of Booth

The very first step is to see that the

booth is unsealed and that proper heated ventilation is provided for a period of a week, if possible, before any equip* ment is turned on or allowed to rotate.

The biggest factor contributing to the deterioration of the equipment is the effect of moisture during the shutdown period. That is why the problem of heat and ventilation is so important. This fact is almost universally overlooked by the outdoor exhibitor because of his impatience to get his drive-in operating. If he would only realize the value of this first step, he would be surprised at the dividends it pays.

Checking of Ramp Circuits

The recommended period for ventilating and drying out the booth does not necessarily have to be a period of inactivity. This time can be well used to check all of the ramp circuits for continuity. In new drivedns, particularly, there no doubt has been some heaving, due to repeated thawing and freezing, which may have caused injury to the underground wiring. Surely, any necessary repairs to underground wiring should be attended to before driveway surfaces are fixed up.

All of the circuits from the ramp switching panels to the post outlets should be buzzed through and checked

OlL TREATING of the graded and packed surface is best accomplishednow. for the penetrationppf' pre': ceding oilings should be at their maximum depth so that an additional coatmg wall stay high.

for high resistance, iigrounds," or ftopensfy At the same time, the output connections at the posts can be thoroughly checked and cleaned. This job is a itmust," regardless of the precautions taken, for these parts of the system have had the most exposure to the weather. Corrosion and contact resistance must be first removed and then dirt and foreign matter of any kind from the insulating materials to destroy any path that may be set up for electrical leakage.

Inspection of Speakers

During this same period all of the drive-in speaker units must be inspected to see that they are in first-class condition. A number of farsighted exhibitors have made arrangements during the shutdown period to return all of their speakers to either the manufacturer or a recognized repair service for thorough reconditioning. If this has been done, much time can be saved in preparing the equipment for reopening.

If, on the other hand, the speakers were merely covered up or removed and stored, detailed inspection is required. Some diaphragms will undoubtedly have to be replaced, as well as volume controls and damaged .cases. Cords, terminals, and plugs will likewise require considerable attention and some replacement. Nests of rodents and insects must be destroyed and removed. In any event, it must definitely be determined that each and every speaker is in first-class operating condition.

In the case of central speaker systems, a very thorough job must be done to clean out the dirt and foreign matter that is bound to accumulate during these shutdown periods, and each unit must be carefully checked and reconditioned.

Refurbishing the Screen

The screen or screen surface should be carefully cleaned or refinished. A screen must be in first-class condition to maintain picture quality comparable to that of the previous season. Even though the color of the screen may at first appear satisfactory, it has doubtless lost considerable of its refiecting properties; therefore, refinishing is strongly recommended.

Proiection Equipment

By the time all of the above tasks have been performed the booth has no doubt been thoroughly ventilated and dried out, so that actual work can be started on reconditioning of the projectors, lamp houses, and other equipment.

The projector, sound heads, and lamp houses, should have all of the rust prcventatives removed. Although this is usually a very sloppy and undesirable job, it should be done thoroughly. Whereever possible, the projectors and sound heads should be completely immersed or, at least, well brushed out with a good grease dissolving agent. While kerosene is a good grease dissolvcnt and, at the same time, dries cleanly with a small oily film loft deposited, it is, in most cases, illegal to use it in a projection booth. If carbon tetrachloride or some other chemical dissolving agent is uScd, the parts must be wiped with an oily rag after it has dried in order

1950-51 Theatre Catalog, 9th Edition, Page 444