Glass cutting control apparatus
United States Patent 3274390
US Patent References:
Photoelectric speed control
- - 2632855
Automatic correction device
- - 2840371
Machine for cutting and perforating photograph prints from a continuous strip thereof
- - 2674308
Apparatus for automatically scoring and cracking of glass sheets
- - 2793471
Photoelectric circuit
- - 2803751
Photoelectric speed control
- - 2632855
Automatic correction device
- - 2840371
Machine for cutting and perforating photograph prints from a continuous strip thereof
- - 2674308
Apparatus for automatically scoring and cracking of glass sheets
- - 2793471
Photoelectric circuit
- - 2803751
Inventors:
Umbel, Forrest K.
Publication Date:
09/20/1966
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Export Citation:
Assignee:
PITTSBURGH PLATE GLASS CO
Primary Class:
Other Classes:
250/559.440, 83/364, 250/214R, 83/883, 225/96.500, 700/167
International Classes:
C03B33/027; C03B33/037; C03B33/10; C03B33/00
US Patent References:
Foreign References:
| FR1236148A |