Gear-Cutter-Relieving
attachment-s
Blazers,
Chard,
American Tool co.
Slide-gib Relieving  gear-
Chard Lathe drawn  1918 reissued 1941
469-C 108T-12P-relieving gear Relieving-gear
-Chard-lathe-drawn-Chard-lathe-drawn-1918-1941
468-C-Left-Relieving-Gear_-54T-12P
Relieving-gear-Chard-lathe-drawn-1918-1941
copy Invert
447-c-Right-Index-Plates--Gear-Cutter-Relieving-attachment
-gear-Chard-lathe-drawn-origional-blueprint-1918-1941
Top or main View of Chard lathe backing off or Relieving
attachment 1918-1941.
Seen above and below in black is an Assembly Drawing I Put
together using Traditional methods using only the origional
1941 dated blueprints I rescued before the 1903 factory was
destroyed by the city.
Yes the methods will still achieve results, but more slowly and
a bit less accurately, In absence of me having a home copy of
Autocad or Cadkey, and a digiter to covert the drawinge into
IGS format.
Top or plan view.showing clearly the advance and retract rack
and cam mounting shaft.
Side or plan view, crosslide on top.
Side View of Chard lathe backing off or Relieving
attachment For machining making gear cutters, hobs and
other cutters.
Above picture  Balzer's
Relieving Attachment
Balzer's Relieving
drawing
Attachment_cross
section drawing
reduction
gearing.
470-C-Right-Drive-shaft-Sleve-Collar Relieving main drive gear
Slide-gib_Relieving-gear-Chard-lathe-drawn-1918-1941-
unkown
unkown not
469-C-left-81T-12P-Gear-Cutter-Relieving-attachment-ge
ar-Chard-Lathe-drawn-origional-blueprint-1918
unkown  
474-C-Right slide rest-Bottom-slide-