Photo Index - Union Mfg. Co. (New Britain, CT) - Chuck, 3-Jaw, No. 93--K

Machinery Photo Index

Manufactured/Badged by:
Union Mfg. Co. (New Britain, CT)
New Britain, CT

Machine Specifications
Machine Class:	Metal Working Machinery
Machine Type:	Other
Machine Size:	4 3/8" (exact tape measure)
Submitted By:	Bruce Jackson

Machine Specifications
Description/Model:	Chuck, 3-Jaw, No. 93--K
Date of Manufacturer:	1920s? (PDF catalog)
Serial Number:	Not visible
Last Updated	4/26/2018 4:51:47 PM

Comments:

This chuck accompanied a Craftsman lathe, Model No 228160, with a 3/4" 16 tpi spindle my father bought as a "basket" at an estate sale during the early 1980s, around the time he retired from a 30-year career as a machine repairman and toolmaker. Here are front and back view pictures in the hopes that it could have been identified as to make, model, and vintage - I have already ID'd after being struck by how clear part of the label appeared in the picture. This afternoon (4/26/2018), I took a brass brush to the area surrounding the label and confirmed the make and model.

Dad hardly ever bought anything new..

I will keep the chuck, and am no longer looking for specific ID as to make and model. I have used it already, the latest project is an arbor for my drill press which I can use to make marking gauge blades from fender washers. I had tried to reverse the jaws so that the outside is on the inside and don't give me the heebie-jeebies while using a parting tool and a finger gouge to turn down a 3/4" dowel to a size that will fit the DP chuck. Flipping through two PDF catalogs I downloaded from www.vintagemachinery.org (this site), I found the model number and saw nothing in the description that tells me the jaws may be reversible. Confirmed to a greater extent by a picture of another model where the description specified that the jaws were reversible. So, no "reversible", reversing jaws seems infeasible for this model.

If you have already seen this entry in its previous form, thank you for visiting.

By the way, according to the catalogs, this chuck is more for metal working than woodturning. The jaws had some difficulty holding a 3/4" dowel which became the arbor I made tight enough to turn with the spindle. So, since a faceplate also came in the "basket" purchase, I will probably use that with a shopmade collet which uses a hose clamp.

Photo 1:

Comments: Chuck 3 Jaw Front View
Source: Bruce Jackson

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Photo 2:

Comments: Chuck 3 Jaw Back View
Source: Bruce Jackson

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