CA Patent: CA-3,141
|
| Improvements on scroll-sawing machines
|
|
Patentee:
|
|
| Thomas Wickliffe Dowling (exact or similar names) - Pontiac, MI |
|
|
Patent Dates:
|
| Granted: |
Feb. 24, 1874 |
CIPO Data
Report data errors or omissions to steward
Jeff Joslin
"Vintage Machinery" entry for T. W. Dowling
"Vintage Machinery" entry for John Bertram & Sons Co., Ltd.
|
|
Description: |
| This is the Canadian equivalent of US patent 145,993. The 1886 "Illustrated Catalog of Machinists' Tools and Wood Working Machinery" from John Bertram & Sons, pages 40-41 features Dowling's Patent Scroll Sawing Machine. "Having purchased the exclusive right to manufacture this machine in the Dominion, we can confidently recommend it... The saw has a constant strain through its whole stroke. This is effected by two spiral springs acting on steel levers which are attached to the upper slide direct, and all the reciprocating parts of this movement being made of steel-plate enables the machine to run at a high rate of speed with great smoothness..." |
|
