| US Patent: 248,963 
 | 
| Saw-arbor | 
| 
| Patentees: |  
 | Henry J. Cordesman, Jr. (exact or similar names) - Cincinnati, OH |  | John R. Thomas (exact or similar names) - Springfield, OH |  
 
 
 
 
 
 | 
| Patent Dates: |  
| Applied: | Apr. 08, 1881 |  
| Granted: | Nov. 01, 1881 |  USPTO (New site tip)
 Google Patents
 Report data errors or omissions to steward 
                        Jeff Joslin
 Vintage Machinery entry for Egan Co.
 Vintage Machinery entry for Cordesman, Egan & Co.
 
 | 
| 
| Description: |  | "Our invention relates to an improvement in that class of saw-arbors in which the saw is secured on the arbor between two collars having an annular sliding conical-headed sleeve or bushing to adapt the arbor to saws having various-sized holes; and it consists in making the annular sleeve or bushing screw-threaded from the conical head to the opposite end, and screw-threading the annular bore of the movable collar which is mounted thereon and in which it operates..." |  |