GB641886A - Improvements in or relating to cam devices - Google Patents
Improvements in or relating to cam devicesInfo
- Publication number
- GB641886A GB641886A GB32755/46A GB3275546A GB641886A GB 641886 A GB641886 A GB 641886A GB 32755/46 A GB32755/46 A GB 32755/46A GB 3275546 A GB3275546 A GB 3275546A GB 641886 A GB641886 A GB 641886A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cam
- follower
- lever
- auxiliary
- spring
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Control Of Position Or Direction (AREA)
- Mechanisms For Operating Contacts (AREA)
Abstract
641,886. Cam mechanism. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Nov. 4,. 1946, No. 32755. Convention date, March 3, 1943. [Class 80(iii)] [Also in Group XXXVII] A cam mechanism for giving a member,. such as the contact of an electric switch, a rapid movement in both directions comprises a cam 1, Fig. 2, movable in the direction A and having a profiled edge 2 cooperating with a follower member 4 loaded by a spring 5. On movement of the cam 1 the spring 5 is gradually loaded until the follower 4 drops rapidly into the re-entrant portion 6 of the cam which may move a switch contact into an " on " position. Movement of an auxiliary cam member 9 in a direction B gradually loads the spring 12 of an auxiliary follower 7 until this follower drops into a re-entrant portion 10 of the cam 9. During this movement the end 13 of this member 7 engages a hooklike portion 14 on the follower 4 to move the latter quickly to its original " off " position. The auxiliary member 9 may be coupled to the member 1 or may be operated independently. In the arrangement of Fig. 4 rotary main and auxiliary cam discs 20, 21 are provided for actuating a lever arm 23. On rotation of the discs in the direction of arrow C the end 29 of lever 23 is adapted to fall rapidly into a reentrant 27 of the disc 20 under the tension of a spring 30 connected between lever 23 and an auxiliary lever 24. The spring 32 of this auxiliary lever is gradually loaded by the cam 21 until the re-entrant portion 33 passes the end 31 of this lever when it moves rapidly and engages an abutment 26 of lever 23 to move the latter back to its original position. In a modification of this last arrangement the cam discs are driven by a pin engagement with an arm on the driving shaft and the re-entrant portion 27 is provided with a bevelled edge co-operating with a bevel on the follower. The action in this case when the follower drops into the re-entrant is to advance the discs in front of the driving means and speed-up the operation of the return movement. Applications of the mechanism mentioned are for the intermittent operation of a stylus on to a registering strip in an automatic registering device and for an electric device for checking the rotation of a shaft in which the cam operated member effects a make and break of an electric circuit to maintain a condenser charged and a relay energized.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL641886X | 1943-03-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB641886A true GB641886A (en) | 1950-08-23 |
Family
ID=19791796
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB32755/46A Expired GB641886A (en) | 1943-03-03 | 1946-11-04 | Improvements in or relating to cam devices |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB641886A (en) |
-
1946
- 1946-11-04 GB GB32755/46A patent/GB641886A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1436484A (en) | Alternate action switch mechanisms | |
GB641886A (en) | Improvements in or relating to cam devices | |
GB649822A (en) | Improvements in push-pull electric selector switches | |
GB554086A (en) | Improvements in and relating to contact arrangements for electric switches | |
US2352156A (en) | Timing mechanism | |
US2398994A (en) | Control device | |
GB486062A (en) | Improvements in screw plug and like automatic electric switches | |
GB1008360A (en) | Improvements in electric switch-actuating mechanisms | |
GB466281A (en) | Improvements in and relating to remote control systems and devices | |
GB675844A (en) | Improvements in or relating to electromagnetic relays | |
GB1097429A (en) | A snap action mechanism especially for electrical switching devices | |
GB702790A (en) | Improvements in and relating to electro-magnetic relays | |
GB948018A (en) | Electromagnetic actuating devices | |
SU536639A1 (en) | Device for controlling vehicle friction clutch | |
US2408901A (en) | Electric switch sensitive to small operating movements | |
GB501937A (en) | Improvements in or relating to reversing-switches with a no-volt release | |
GB845382A (en) | Electric switch interposed in a mechanical linkage | |
GB249499A (en) | Improvements relating to switching devices | |
GB1054414A (en) | ||
GB611281A (en) | Electric limit switches | |
GB543252A (en) | Improvements in radio-receiving sets comprising a wave-range switch | |
GB652792A (en) | Improvements in and relating to electric switches, particularly electromagnetically operated switches | |
GB1008485A (en) | Drive mechanism for an electric contact make and break device | |
GB979051A (en) | An electric circuit-breaker operating mechanism | |
GB672778A (en) | Improvements in or relating to eddy-current switches for controlling electric motors |