Hand cranked film projector at DVinfo.net

Mitch Buss · December 29th, 2007, 11:50 AM

Hello everyone. I know that this is a DV forum, yet I have an anti-DV question so I hope you all can bear with me and offer any of your insight. I recently purchased a Keystone Moviegraph hand cranked 35mm toy projector (eBay auction #120197775466) It still works and comes with about 100' of 35mm film. (I believe it to be a Charlie Chaplin short.) Here is my question, once I have a lens and it is fired up and running, doesn't it need a shutter to create persistence of vision? This projector has no shutter and no identifiable shutter assembly. I was looking at whatever pictures and info I could find and found no evidence of a shutter. So my question is, is this meant to be a motion picture projector or a film strip projector? I know that you all may not be experts on this, but any insights that you have are very welcome. Thanks for the help!

Chris Hurd · December 31st, 2007, 10:37 AM

Hi Mitch, the photo on Ebay is rather low-res. Can you take some better photos of this thing and post them here? A film projector needs not only a shutter but also an intermittent sprocket gear to hold the film perfectly still in the gate while the shutter is open (and then advances to the next frame while the shutter is closed).

Bob Hart · December 31st, 2007, 10:46 AM

Does it use an intermittent transport or a two faced prism in metal cylinder shutter arrangement like the Teleray editor or multifaceted prism like a Steenbeck. If it is a prism, then there will be no claw or maltese cross intermittent action.

Mitch Buss · December 31st, 2007, 05:17 PM

It is a Maltese cross intermittent movement with one sprocket wheel. I will take pictures and post them as soon as possible. Thanks again guys.

December 31st, 2007, 10:37 AM	#2
Chris Hurd Obstreperous Rex Join Date: Jan 2001 Location: San Marcos, TX Posts: 27,366 Images: 513	Hi Mitch, the photo on Ebay is rather low-res. Can you take some better photos of this thing and post them here? A film projector needs not only a shutter but also an intermittent sprocket gear to hold the film perfectly still in the gate while the shutter is open (and then advances to the next frame while the shutter is closed). __________________ CH Search DV Info Net \| 20 years of DVi \| ...Tuesday is Soylent Green Day!

December 31st, 2007, 10:46 AM	#3
Bob Hart Inner Circle Join Date: Dec 2003 Location: PERTH. W.A. AUSTRALIA. Posts: 4,476	Does it use an intermittent transport or a two faced prism in metal cylinder shutter arrangement like the Teleray editor or multifaceted prism like a Steenbeck. If it is a prism, then there will be no claw or maltese cross intermittent action. Last edited by Bob Hart; December 31st, 2007 at 10:49 AM. Reason: added text and corrected error

December 29th, 2007, 11:50 AM	#1
Mitch Buss Regular Crew Join Date: May 2004 Location: Chicago, IL Posts: 184	Hand cranked film projector Hello everyone. I know that this is a DV forum, yet I have an anti-DV question so I hope you all can bear with me and offer any of your insight. I recently purchased a Keystone Moviegraph hand cranked 35mm toy projector (eBay auction #120197775466) It still works and comes with about 100' of 35mm film. (I believe it to be a Charlie Chaplin short.) Here is my question, once I have a lens and it is fired up and running, doesn't it need a shutter to create persistence of vision? This projector has no shutter and no identifiable shutter assembly. I was looking at whatever pictures and info I could find and found no evidence of a shutter. So my question is, is this meant to be a motion picture projector or a film strip projector? I know that you all may not be experts on this, but any insights that you have are very welcome. Thanks for the help!

December 31st, 2007, 05:17 PM	#4
Mitch Buss Regular Crew Join Date: May 2004 Location: Chicago, IL Posts: 184	It is a Maltese cross intermittent movement with one sprocket wheel. I will take pictures and post them as soon as possible. Thanks again guys.