At last, my food processor is whole again!
I am happy to report that after much research, many false starts, a variety of phone calls and e-mails and several unsuccessful bids, I have successfully bought replacement parts through eBay.
For others searching, I can now say definitely that bowls and associated parts from the Cuisinart DLC-10 series do fit the original CFP-4, CFP-5 and CFP-9 series made by Robot Coupe. However, there is some variation in lids, sleeves and slicing/shredding blades and you have to make sure that all of those match each other.
Cuisinart made several modifications over the years. The original CFPs and DLC-10s came with a lid and sleeve featuring a narrow feed tube and slicing/shredding blades with a fixed stem.
Later, the DLC-10s were changed to take blades with a detachable stem (the same blades also fit the DLC-8s using a different stem) and a cover that has a wider feed tube and sleeve.
I am uncertain whether the original CFP bowls and fixed-stem CFP blades work with the wide-tube DLC-10 lids, but the DLC-10 bowls definitely fit the CFP motor bases. DLC-10 stems and steel blades fit the CFP-9 series (and, I suspect, other CFP models, but I'm not sure).
Due to safety issues, Cuisinart also made some changes to the lid and sleeve/pusher assembly, so if you get a new pusher/sleeve, you have to get a matching lid and vice versa.
Although a helpful Gourmet Depot agent denied knowing whether the new DLC-10 parts they have available would fit my old base and bowl, I now believe they would. (The Gourmet Depot guy congratulated me on owning one of these 1970s workhorse CFP machines and said the reason he didn't know is because so few of them ever come in for repairs.)
However, the eBay route, if more troublesome, was less expensive. (Annoyingly, after I had successfully bid on my parts, another set came and went for an even lower price, but that's eBay for you.)
If you're browsing at a rummage sale and see old Cuisinart parts going cheap, grab 'em, because eBay shoppers are always looking for them.
Here's a related account of another classic-Cuisinart fan's parts search:
The New York Times wrote:Updating Appliances, a Few Parts at a TimeBy MICHELLE STATALLA
Published: December 28, 2006
I REALIZE now that a triple batch of latkes could kill any small appliance.
But for nearly two decades, my Cuisinart food processor lulled me into a false sense of security. It stoically shredded mountains of potatoes. It sliced onions, emulsified mayonnaise, ground almonds into paste, pulverized cloves and kneaded bread dough like a tireless grandmother from the old country.
The halcyon era ended abruptly one night last week after a Hanukkah party, as my husband washed dishes.
“Is this piece that says lock supposed to come off?” he asked, waving a plastic tab.