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This topic comprises 2 pages: 1 2
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Author
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Topic: Lubrication of old Simplex
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Craig Hardy
Film Handler
Posts: 28
From: Barrington, New Hampshire USA
Registered: Oct 2018
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posted 10-27-2018 10:11 PM
I have a pair of old regular Simplex's that run nice but haven't been checked or lubed for over 20years. I've read the discussions about oil. Haven't obtained a quart of Simplex oil or Capella yet, but have a bottle of "refrigeration oil" which I presume is mineral oil. I happen to have several spare intermittents, including one identical to ones in these machines, so I've studied the insides and noted the two tiny "oil sight" windows. This is the model with the oil cup instead of pair of oil tubes on back. I don't see any provision for draining unit while in the machine. SO, my MAIN questions at the moment are: 1.How much oil do I add? 2.How do I use the "oil sight" windows? Since this is my first post on your wonderful site, let me bore you for a few moments on who I am. I'm a retired electro/mechanical engieer, will be 78 in January. My "home theatre" has a soundproofed booth, 33ft throw to 10ft screen. I have about 75 old features on 16mm that I screen with a pair of projectors. Deciding I was never going to do outside shows anymore, I just sold a pair of Super Simplex's with WE soundheads and Peerless Magnarc lamps scrounged from an old theatre about 25yrs ago. I kept my half dozen 'scope 4 star 35mm features and the scope lenses so I could still screen them with this other pair of regular Simplex's that were given to me. I got some large format experience helping a friend operate the IOKA theatre in Exeter, NH for 8-10yrs starting in mid 90's. We were running a pair of Brenkert BX-80's with Ashcroft lamps. The IOKA opened in the fall of 1915 with "Birth of a Nation" and remained in commercial operation until closed just a few years ago. The brenkerts had 6,000ft magazines and we used a tooth belt to lock motors in sync and to run 3D. Once a year, folks came from 5hrs away to watch "House of Wax", since I think we were the only venue east of the Mississippi still set up for two strip 3D. BACK TO NOW: I don't have room in my booth for both Simplex's and will just be running a reel at a time. REASON I've dusted off this old gem is a fellow who picked up about 500 reels of 35mm on ebay, lugged them home from Chicago, has no equipment and wants to view some of his cache. SO...before racking up some hours I want to make sure lube is OK! OH YEAH, as Columbo says, "one more thing": for compact indoor lamp, I have ELH quartz lamp mounted on shutter cage and a 10 qt. stainless soup bowl from Walmart on back of cage, with a 4" muffin fan for cooling. I've had a frustrating time these last couple days waited for administrator approval because NONE of the downloadable documentation matches these machines. The have no ID plates on them. The spend their final commercial years at the Hampton Casino over on the seacoast. The Ballantyne sound heads have consecutive serial numbers: 3634 and 3635. One of you gentlement stated that Simplex's are about indestructible, and here's testimony to that: When electricians removed them at Hampton Casino THEY TOSSED THEM OUT OF BOOTH--ABOUT A 14FT DROP ONTO A WOODEN FLOOR AND THEY SURVIVED! One had a little slop in the shutter, but still ran OK--one of the support arm castings broke but was riding in place. I have several "parts" heads from that theatre where I got the Supers, so replaced the shutter shaft bracket and all was well. OK, enough yak for now. Will await answers from you fine experienced gentlement!
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Tim Reed
Better Projection Pays
Posts: 5246
From: Northampton, PA
Registered: Sep 1999
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posted 10-28-2018 08:00 PM
quote: Craig Hardy I don't see any provision for draining unit while in the machine. SO, my MAIN questions at the moment are: 1.How much oil do I add? 2.How do I use the "oil sight" windows?
Drain the intermittent and start with fresh oil. Remove the screw and washer(s) as shown in the attached drawing (and don't lose the washer(s) that may stay in the hole when you remove the screw). Rotate the framing knob until the drain hole is at bottom, so all the oil will come out.
When it's empty, close the oil drain and rotate the framer to the middle of its travel. Use a flashlight to view the oil sight glass while slowly adding oil (it takes a few seconds to reach the case). You want the oil level to be at least halfway up on the sight glass when the intermittent/framer is at mid position (that is, when the intermittent movement is LEVEL). As long as you can see the oil midway on the glass when it's in this position, you're okay. If not, slowly add oil until you make it so.
Use 20 wt oil, as Ed suggested.
Also, make sure you add 2-3 drops of oil to each oil tube on the mechanism, wait a few minutes, and rotate the mechanism by hand to let it distribute. Then add a couple more drops to each tube. You may want to repeat this several times, since they've been sitting a long time. The shafts and sleeve bearings are most certainly needing some fresh oil at this late date.
Using the projector as infrequently as you do, I'd place a drop of oil in each tube prior to each screening session. In a fully operational theatre, they'd get oiled weekly. Although, I knew a projectionist who oiled his daily (1 drop in each tube). The oil drain bottle under the sound head would fill fast, but those machines ran uber-quiet.
CAVEATS: - This presumes you indeed have a Simplex Standard (regular) or a Super, and not an E7. - If I have overlooked anything or misspoken, I'm sure someone will correct me.
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Phillip Grace
Expert Film Handler
Posts: 164
From: ACMI. Melbourne. Australia.
Registered: Mar 2004
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posted 10-31-2018 12:49 AM
Hi Craig.
Most Regular Simplex machines will have been modified more or less extensively in the course of their long lives. The nameplates usually go when the front cover is replaced, due to metal fatigue or lens mount upgrade etc. The original serial number, up to six digits, can be found stamped into the rear vertical edge of the main projector frame. It can be difficult to see on rear shutter machines, and is probably covered by dirt and grease. There are some people on this forum who can work out the date of manufacture from the serial number. Although IPC offered a rear-shutter model direct from the factory, the majority of these machines would have begun their lives with front shutters. Lots of manufacturers offered after-market modifications to all aspects of the projector - including rear shutters, dual shutters, gates, gears, lens mounts, apertures, and external covers. Differences in detail might explain why yours don't match the literature. The basic mechanism should still resemble the original manuals. A very experienced projectionist told me many years ago that if you were doing two shows a day (Matinee and Evening) the Regular Simplex must be oiled before each show, but if there was a third session you could get away with oiling it before the first and half way through the second show. (And woe betide you if you didn"t!) Another fellow, recounting his experience in the old days out in the suburbs said you oiled the machine thoroughly every day without fail, and if you heard a funny noise coming from it during the show, you rushed over to the machine, threw open the little door at the back and squirted oil all over everything - and hoped that the funny noise went away! Cheers.
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