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» Film-Tech Forum ARCHIVE   » Operations   » Film Handlers' Forum   » The best 35mm projector (Page 3)

 
This topic comprises 12 pages: 1  2  3  4  5  6  ...  10  11  12 
 
Author Topic: The best 35mm projector
Floyd Justin Newton
Jedi Master Film Handler

Posts: 559
From: Phoenix, Arizona, USA
Registered: Jun 2002


 - posted 12-20-2006 08:15 AM      Profile for Floyd Justin Newton   Email Floyd Justin Newton   Send New Private Message       Edit/Delete Post 
At the orignal Cine Capri in Phoenix I had two JJ2s which
didn't leak oil at all....period. [Smile]

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Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99


 - posted 12-20-2006 07:44 PM      Profile for Mark Gulbrandsen   Email Mark Gulbrandsen   Send New Private Message       Edit/Delete Post 
quote: Floyd Justin Newton
I had two JJ2s which
didn't leak oil at all....period.

They musta been rebuilt by Louis "no leak" Bornwasser.

Mark

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Floyd Justin Newton
Jedi Master Film Handler

Posts: 559
From: Phoenix, Arizona, USA
Registered: Jun 2002


 - posted 12-20-2006 08:37 PM      Profile for Floyd Justin Newton   Email Floyd Justin Newton   Send New Private Message       Edit/Delete Post 
Nope....they were maintained and operated by professional
projectionists. [Wink]

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Louis Bornwasser
Film God

Posts: 4441
From: prospect ky usa
Registered: Mar 2005


 - posted 12-21-2006 09:21 AM      Profile for Louis Bornwasser   Author's Homepage   Email Louis Bornwasser   Send New Private Message       Edit/Delete Post 
In the pre_Ultra lens era, I aligned and cut plates for that theatre. (Cine Capri). Flat originally was oval with no corners. Scope was little better. This was about 1976. When I left, you no longer had to move the projector up/down, etc. between formats. The machines were excellent even then. They were the best Centurys I had ever seen at the time, so I KNEW it was possible for them to be really good.

I never worked on the mechanics, though. Nice older gentleman operator was probebly 80 or so in 1976. Louis

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Bobby Henderson
"Ask me about Trajan."

Posts: 10973
From: Lawton, OK, USA
Registered: Apr 2001


 - posted 12-21-2006 09:33 AM      Profile for Bobby Henderson   Email Bobby Henderson   Send New Private Message       Edit/Delete Post 
Are there any limitations as to which brands of lens systems can be installed on these various makes of projectors? It would seem the type of lens system being used is just as critical (if not more so) than the make of the projector head.

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Gordon McLeod
Film God

Posts: 9532
From: Toronto Ontario Canada
Registered: Jun 99


 - posted 12-21-2006 10:02 AM      Profile for Gordon McLeod   Email Gordon McLeod   Send New Private Message       Edit/Delete Post 
Certain machines have issues with lens sliding far enough in to focus or vigneting on the mount

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Louis Bornwasser
Film God

Posts: 4441
From: prospect ky usa
Registered: Mar 2005


 - posted 12-21-2006 03:19 PM      Profile for Louis Bornwasser   Author's Homepage   Email Louis Bornwasser   Send New Private Message       Edit/Delete Post 
In general anything with a 4" mount is OK (Old Westars, any Century C, and any projector with a recessed lens like Kinotons may well have problems) Problems usually are limited to shorter focal lengths. Louis

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Will Kutler
Phenomenal Film Handler

Posts: 1506
From: Tucson, AZ, USA
Registered: Feb 2001


 - posted 12-22-2006 04:02 AM      Profile for Will Kutler   Email Will Kutler   Send New Private Message       Edit/Delete Post 
The early Simplexes (Standards, Supers and E-7s) were all wonderful machines that, when run by a professional projectionist put some of the best pictures on the screen!

Unfortunately the early Simplexes did not use bronze bushings on the sprocket shafts. So you had precision ground shafts running directly against the cast-iron mainframe casting. I have serviced several early Simplexes where those shafts have been madly scored and worn. However, you can use an India stone to clean off any burrs, clean-up the main frame casting, reassemble and they'll still run like champs with minimal slop between the shafts and casting! A real testemant the the quality of manufacture in those bygone days!

Also with the early Simplexes was the ability to fine-tune shutter ghosting while the machine was operating.

The main complaints that I had about those early Simplexes is that they could be difficult to clean and they were "cramped" as compared to a Century. Also with the early Simplexes if one needed to replace a intermittent sprocket then one had to open-up the intermittent and pull the star/sprocket shaft.

But like I said, in the hands of a professional projectionist, what wonderful machines!

Centurys are simple, spacious and built like a tank.

Bevan Wright is very customer orinetated and a first-class gentleman. I spent a substantial amount of time on the telephone with him ironing out and resolving customer problems when I was regularily doing independant tech-work, as well as when I was working as a projectionist for a particular theatre chain. I am not sure of the full extent of Bevan's involvement with the development of the Christie P35 GP projector. But my hats off to Bevan for really going all out to resolve the many problems that pleagued this machine.

Kutler

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Scott Norwood
Film God

Posts: 8146
From: Boston, MA. USA (1774.21 miles northeast of Dallas)
Registered: Jun 99


 - posted 12-22-2006 06:39 AM      Profile for Scott Norwood   Author's Homepage   Email Scott Norwood   Send New Private Message       Edit/Delete Post 
quote: Will Kutler
Also with the early Simplexes was the ability to fine-tune shutter ghosting while the machine was operating.
Same for current-production Simplexes and most Centurys (except the recent ones).

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Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99


 - posted 12-22-2006 07:57 AM      Profile for Mark Gulbrandsen   Email Mark Gulbrandsen   Send New Private Message       Edit/Delete Post 
quote: Will Kutler
Unfortunately the early Simplexes did not use bronze bushings on the sprocket shafts. So you had precision ground shafts running directly against the cast-iron mainframe casting.
Will,

Why would you say "Unfortunately"? In fact cast iron is one of the very best bearing materials around. Steel shafts in cast iron are capable of many times more service life than bronze is. It is the simple main reason why so many of these projectors are still running today. Worn shaft bores were no problem in the old days where that out of round bore was reamed out and an oversized shaft installed and the projector returned to service for another 20 years of use. Later Simplex's and the later LaVezzi "upgrade kits" for the Super utilized shafts that were secured in the existing rotating shaft bores but the gears that rotated on the new fixed shafts were cast iron.... I'm glad they didn't use bronze or they'd all have dissappeared a long time ago!

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Dave Macaulay
Film God

Posts: 2321
From: Toronto, Canada
Registered: Apr 2001


 - posted 12-22-2006 08:56 AM      Profile for Dave Macaulay   Email Dave Macaulay   Send New Private Message       Edit/Delete Post 
Even the newest Century projectors have shutter adjustment that can be set with the machine projecting. You have to watch your fingers as it's behind the back cover though. From what I've heard the front knob was removed as "booth ushers" were turning it by mistake so it was decided to make the adjustment internal.

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Louis Bornwasser
Film God

Posts: 4441
From: prospect ky usa
Registered: Mar 2005


 - posted 12-22-2006 09:46 AM      Profile for Louis Bornwasser   Author's Homepage   Email Louis Bornwasser   Send New Private Message       Edit/Delete Post 
Dave: the latest Centurys have a fixed shutter bracket with no adjustment possible. This is OK by me as they are very stable unless broken. Louis

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Tim Reed
Better Projection Pays

Posts: 5246
From: Northampton, PA
Registered: Sep 1999


 - posted 12-22-2006 09:57 AM      Profile for Tim Reed   Author's Homepage     Send New Private Message       Edit/Delete Post 
That's too bad. I liked having the fine adjustment capability. Especially today, since I've been having difficulty seeing up-close in my old age. [Wink]

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Monte L Fullmer
Film God

Posts: 8367
From: Nampa, Idaho, USA
Registered: Nov 2004


 - posted 12-22-2006 01:43 PM      Profile for Monte L Fullmer   Email Monte L Fullmer   Send New Private Message       Edit/Delete Post 
quote: Mark Gulbrandsen
Steel shafts in cast iron are capable of many times more service life than bronze is.
Why automobile engines can actually run forever if you keep the oil changed - steel against iron (like rings, bearings, cams, valves..et.al..).

(..can you imagine an engine with bronze cylinder sleeves, or even bronze bearings?)

Yeppers, Those people at IPC Projector Company who made Simplexes knew what they were doing.
-Monte

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Will Kutler
Phenomenal Film Handler

Posts: 1506
From: Tucson, AZ, USA
Registered: Feb 2001


 - posted 12-22-2006 05:30 PM      Profile for Will Kutler   Email Will Kutler   Send New Private Message       Edit/Delete Post 
Mark

Yes, you are correct in your assessment. However, in my opinion pressed-in bronze bearings would be better. Why? When they are worn just press them out and install new ones, as they are dirt cheap. Another advantage would have been the ability to eliminate the manufacture of several different sized shafts (Lean Manufacturing). It would have been interesting to test the service life and performance of oil-lite bearings on these machines.

K

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