GB1188199A - Improvements in or relating to Programme Controllers - Google Patents
Improvements in or relating to Programme ControllersInfo
- Publication number
- GB1188199A GB1188199A GB5068867A GB5068867A GB1188199A GB 1188199 A GB1188199 A GB 1188199A GB 5068867 A GB5068867 A GB 5068867A GB 5068867 A GB5068867 A GB 5068867A GB 1188199 A GB1188199 A GB 1188199A
- Authority
- GB
- United Kingdom
- Prior art keywords
- arm
- timer
- brake
- setting
- control arm
- 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
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/06—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using cams, discs, rods, drums or the like
- G05B19/066—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using cams, discs, rods, drums or the like for delivering "step function", a slope function or a continuous function
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Temperature (AREA)
Abstract
1,188,199. Thermal switches. J. B. G. ALFORD. 3 Feb., 1969 [8 Nov., 1967], No 50688/67. Heading H1N. [Also in Division F2] In a programme timer for making sudden changes in the setting of a variable by sudden adjustment of a control arm 4, Fig. 1, a follower arm 15, yieldingly mounted on the control arm 4 continuously follows a plurality of setting members 12, 13 on a timer disc 10 while the control arm 4 is held stationary at its previously set position by a brake, the timer releasing the brake at the preset times whereby the control arm 4 moves suddenly under the action of the yielding mounting. In the particular example applied to the adjustment of a temperature setting screw 3, Fig. 2, of a bimetal 1 in a thermostat, the control arm 4 is threaded at 5 in a fixed nut 6 and carries a manually adjustable screw threaded spindle 3. The control arm 4 is normally held stationary by a brake pad 24 on a spring-loaded arm 25 which is moved by adjustable tappets 12, 13 on a timer disc 10 which engage a roller 28 on the arm 25. The follower arm 15 is slotted to engage a pair of pins 16, 17 on the control arm 4 and is yieldingly held in position by a spring 18. A further spring 22 urges the follower arm 15 into engagement with one of the pins 12, 13 on the timer disc whereby the follower arm 15 pivots on one or other of the pins 16, 17 against the action of the spring 18. At each of the timer positions requiring a change of setting, the pins 12, 13 engage a flat 21 on the follower arm 15 and simultaneously engage roller 28 to release the brake 24 whereby the main arm 4 moves suddenly to its new position. Arm 29 provides for an overriding manual setting against the action of the brake 24. In a modification the main arm 4 may move a rheostat which varies the heating of a bimetal to control the thermostat temperature setting.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5068867A GB1188199A (en) | 1967-11-08 | 1967-11-08 | Improvements in or relating to Programme Controllers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5068867A GB1188199A (en) | 1967-11-08 | 1967-11-08 | Improvements in or relating to Programme Controllers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1188199A true GB1188199A (en) | 1970-04-15 |
Family
ID=10456953
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5068867A Expired GB1188199A (en) | 1967-11-08 | 1967-11-08 | Improvements in or relating to Programme Controllers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1188199A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4180789A (en) * | 1978-07-10 | 1979-12-25 | Frank Martucci | Time variable thermostat |
US4721936A (en) * | 1987-05-04 | 1988-01-26 | Frank Martucci | Double arm time variable thermostat |
-
1967
- 1967-11-08 GB GB5068867A patent/GB1188199A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4180789A (en) * | 1978-07-10 | 1979-12-25 | Frank Martucci | Time variable thermostat |
US4721936A (en) * | 1987-05-04 | 1988-01-26 | Frank Martucci | Double arm time variable thermostat |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |