GB889220A - Optical apparatus for observing the surface of a moving web - Google Patents
Optical apparatus for observing the surface of a moving webInfo
- Publication number
- GB889220A GB889220A GB39298/59A GB3929859A GB889220A GB 889220 A GB889220 A GB 889220A GB 39298/59 A GB39298/59 A GB 39298/59A GB 3929859 A GB3929859 A GB 3929859A GB 889220 A GB889220 A GB 889220A
- Authority
- GB
- United Kingdom
- Prior art keywords
- web
- mirror
- drum
- observing
- synchronism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
- G01P3/40—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light using stroboscopic means
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
889,220. Optical stroboscopic apparatus. NATIONAL LABORATORIES & MANUFACTURING CORPORATION. Nov. 19, 1959 [May 8, 1959], No. 39298/59. Class 97(1). Apparatus for observing an image of successive impressions equidistantly spaced on a printed web comprises means to guide the web along a path which is straight on either side of its mid-point and bent towards a rotating mirror drum rotated in synchronism with the web whereby, when the light rays reflected by the mirror drum are viewed, a substantially stationary image is seen. As shown in Fig. 1, rollers 12, 13 and 14 guide the web along a path which is concave towards the mirror drum 32 rotated in synchronism with the moving web, the light rays from this drum being reflected to an oscillating mirror 59 so that stationary image of each impression on the web can be viewed through an eyepiece 77. The mirror drum and the associated rocking mirror are preferably constructed and arranged as described in Specification 754,026.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US889220XA | 1959-05-08 | 1959-05-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB889220A true GB889220A (en) | 1962-02-07 |
Family
ID=22214287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB39298/59A Expired GB889220A (en) | 1959-05-08 | 1959-11-19 | Optical apparatus for observing the surface of a moving web |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB889220A (en) |
-
1959
- 1959-11-19 GB GB39298/59A patent/GB889220A/en not_active Expired
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