GB514175A - Improvements in or relating to safety razors - Google Patents
Improvements in or relating to safety razorsInfo
- Publication number
- GB514175A GB514175A GB1272138A GB1272138A GB514175A GB 514175 A GB514175 A GB 514175A GB 1272138 A GB1272138 A GB 1272138A GB 1272138 A GB1272138 A GB 1272138A GB 514175 A GB514175 A GB 514175A
- Authority
- GB
- United Kingdom
- Prior art keywords
- inches
- gap
- blades
- lies
- formula
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
- B26B19/14—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the rotary-cutter type; Cutting heads therefor; Cutters therefor
- B26B19/16—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the rotary-cutter type; Cutting heads therefor; Cutters therefor involving a knife cylinder or a knife cone or separate cutting elements moved like a rotating cylinder or a rotating cone
- B26B19/18—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the rotary-cutter type; Cutting heads therefor; Cutters therefor involving a knife cylinder or a knife cone or separate cutting elements moved like a rotating cylinder or a rotating cone in combination with a fixed razor-blade without shearing perforations
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dry Shavers And Clippers (AREA)
Abstract
514,175. Dry shavers. FAIREY, C. R. April 28, 1938, No. 12721. [Class 131] In a dry shaver having a fixed blade 12 a toothed guard plate 11 and a rotary cutter 14 (which may be spring-loaded) carrying straight or helical cutting blades 13, the relation between the gap A, Fig. 1, and the gap C for safe shaving is determined by the formula A x C = N1, the maximum and minimum values of A being À03 inches and À01 inches and of N1, being À003 and À0015. The value of C relative to the rotor diameter D is determined by the formula C3 - = N2, where N2 has minimum and maximum <p> values À002 and À03. The distance B of the cutting edge of the fixed blade 12 from its outer surface lies between À002 inches and À004 inches, the width T of the teeth of the guard plate 11 lies between À01 inches and À02 inches, and the width of the gap G lies between À03 inches and À01 inches. Extra teeth 16 without cutting edges may be provided between the blades solely for driving the rotor. The leading faces of the blades 13 are ground away at 13a to form cutting edges.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE465730D BE465730A (en) | 1938-04-28 | ||
GB1272138A GB514175A (en) | 1938-04-28 | 1938-04-28 | Improvements in or relating to safety razors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1272138A GB514175A (en) | 1938-04-28 | 1938-04-28 | Improvements in or relating to safety razors |
Publications (1)
Publication Number | Publication Date |
---|---|
GB514175A true GB514175A (en) | 1939-11-01 |
Family
ID=10009875
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1272138A Expired GB514175A (en) | 1938-04-28 | 1938-04-28 | Improvements in or relating to safety razors |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE465730A (en) |
GB (1) | GB514175A (en) |
-
0
- BE BE465730D patent/BE465730A/xx unknown
-
1938
- 1938-04-28 GB GB1272138A patent/GB514175A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE465730A (en) |
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