Yes they did. I recently sold a Constrictor alloy low flange hub on eBay. I t was marked "Constrictor" on the barrel. No wingnuts.
Marc St. Martin Livermore, CA
>From: Sean Flores <email@example.com>
>Sent: Jun 3, 2007 8:52 PM
>Subject: [CR]Constrictor Hubs?
>Went parts digging today at a local shop and came up with an old large
>flange track hub. No markings anywhere except for a couple of odd looking
>wing nuts marked constrictor. These are nothing like the normal wing nuts
>from that era. There are flat and square. As for the hubs, pretty large
>flanges ala Airlite. Unlike airlite, these hubs are all alloy, single pie
>shells. The ends of the flanges for a ³v² shape, vs. a flat end.
>also an oil clip.
>Any ideas, I didn¹t think that constrictor made hubs?
>San Francisco, CA