GB1240494A - Improvements in and relating to cranks with variable eccentricity - Google Patents
Improvements in and relating to cranks with variable eccentricityInfo
- Publication number
- GB1240494A GB1240494A GB5395168A GB5395168A GB1240494A GB 1240494 A GB1240494 A GB 1240494A GB 5395168 A GB5395168 A GB 5395168A GB 5395168 A GB5395168 A GB 5395168A GB 1240494 A GB1240494 A GB 1240494A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- wheel
- rack
- racks
- cranks
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/22—Cranks; Eccentrics
- F16C3/28—Adjustable cranks or eccentrics
-
- 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
- F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
- F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
- F16H19/04—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack
- F16H19/043—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack for converting reciprocating movement in a continuous rotary movement or vice versa, e.g. by opposite racks engaging intermittently for a part of the stroke
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Transmission Devices (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
1,240,494. Variable throw cranks. NORDISK VENTILATOR CO. A.S. 13 Nov., 1968 [14 Nov., 1967], No. 53951/68. Heading F2K. The arm of a variable throw crank comprises two relatively displaceable parts 1, 2, each carrying either the crank shaft 3 or the crankpin 4 (which may comprise a boss having a tapped hole), one of the parts 1 being provided with a shaft 7 integral with a gear-wheel 5 which engages two parallel facing toothed racks 9, 10 in the other part 2, one of the racks 9 being wider than the other 10 in the axial direction of the gear-wheel, which is displaceable in its axial direction against the action of a spring 12 into a position in which it engages only the wider rack 9. As shown, a screwdriver may be inserted in the hollow shaft 3 integral with the part 1, to engage a slot 8 in the shaft 7 to displace the wheel 5 upwards relative to the shaft 3, a pin 13 and the racks to beyond the rack 10, where rotation of the screwdriver will rotate the wheel 5 to move the rack 9 and therefore the part 2 and the pin 4 relative thereto.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK567967A DK116911B (en) | 1967-11-14 | 1967-11-14 | Crankshaft with variable eccentricity. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1240494A true GB1240494A (en) | 1971-07-28 |
Family
ID=8144430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5395168A Expired GB1240494A (en) | 1967-11-14 | 1968-11-13 | Improvements in and relating to cranks with variable eccentricity |
Country Status (6)
| Country | Link |
|---|---|
| DK (1) | DK116911B (en) |
| FR (1) | FR1592230A (en) |
| GB (1) | GB1240494A (en) |
| NL (1) | NL6816154A (en) |
| NO (1) | NO120497B (en) |
| SE (1) | SE334064B (en) |
-
1967
- 1967-11-14 DK DK567967A patent/DK116911B/en unknown
-
1968
- 1968-11-12 FR FR1592230D patent/FR1592230A/fr not_active Expired
- 1968-11-13 GB GB5395168A patent/GB1240494A/en not_active Expired
- 1968-11-13 NO NO451168A patent/NO120497B/no unknown
- 1968-11-13 NL NL6816154A patent/NL6816154A/xx unknown
- 1968-11-13 SE SE1536368A patent/SE334064B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR1592230A (en) | 1970-05-11 |
| DK116911B (en) | 1970-02-23 |
| NL6816154A (en) | 1969-05-19 |
| DE1808316A1 (en) | 1969-06-19 |
| NO120497B (en) | 1970-10-26 |
| DE1808316B2 (en) | 1976-10-21 |
| SE334064B (en) | 1971-04-05 |
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