GB300617A - Improved automatic locking or braking apparatus - Google Patents
Improved automatic locking or braking apparatusInfo
- Publication number
- GB300617A GB300617A GB33637/28A GB3363728A GB300617A GB 300617 A GB300617 A GB 300617A GB 33637/28 A GB33637/28 A GB 33637/28A GB 3363728 A GB3363728 A GB 3363728A GB 300617 A GB300617 A GB 300617A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plate
- plates
- lever
- projections
- locking
- 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
- 238000010276 construction Methods 0.000 abstract 5
- 238000007689 inspection Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B1/00—Devices for securing together, or preventing relative movement between, constructional elements or machine parts
- F16B1/02—Means for securing elements of mechanisms after operation
- F16B1/04—Means for securing elements of mechanisms after operation disengaged by movement of the actuating member of the element
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Control Devices (AREA)
- Endoscopes (AREA)
Abstract
300,617. Bonal, G. de, and Masson, P. Nov. 16, 1927, [Convention date]. Locking by frictional devices.-A mechanism for frictionally locking a lever or shaft against return movement under the force or torque acting upon it, when the operating member is released while permitting such return movement with a braking action under the control of the operating member, comprises a pair of parallel plates one of which is connected to the shaft or lever and both of which can be rotated by the operating member with lost motion, the two plates having interengaging helical surfaces whereby they are forced apart against fixed braking surfaces. According to one construction, Figs. 1 and 2, a pair of plates 9, 11 rotatably mounted upon a fixed shaft 1 have interengaging cam projections or ramps 17, 18. The plate 9 is provided with a lever 10 upon which a force F is assumed to be acting. The operating handle 13 is integral with a ring 12 mounted on fixed plates 2, 22. The ring 12 has recesses 19, 20 through which project with limited play, the lever 10 and a lug 26 on the plate 11. An annular spring 14 secured at its ends to the plates 9, 11 urges the projections 17, 18 in engagement so that when the handle 13 is released the plates are forced apart under this action and that of the force F against the fixed plates 2, 22 with the interposition of washers 15, 16, thus locking the plate 9 and lever 10. If the handle 13 is moved to the left, the ring 12 engages and turns the lever 10 and plate 9 and the plate 11 is turned by the spring 14. When the handle is moved to the right. the plate 11 is turned by the engagement of the ring 12 with the lug 26 and the lever 10 is permitted to return with a braking action exerted thereon. Figs. 3 and 4 illustrate a modification bv which the locking action is obtained irrespective of the direction of the force F. The plate 11 in this case comprises two parts 11<a>, 11<b>, each comprising a pair of opposed sectors and fitting the one into the other at the central part. The faces of the projections 18a, 18b of the two plates are oppositely inclined and engage with correspondingly inclined projections on the plate 9. The spring 14 is attached to the two plates 11<a>, 11<b> and lugs 27, 28 on the plates engage notches in the ring 12. Locking is effected by the action of the projections 18a, 18b on the one or the other plate 11<a>, 11<b> according to the discretion of the force F. Fig. 8 shows a further construction in which the locking action is applied to a rotatable shaft 1<a>. The box-like member 12 carrying the handle 13 is rotatable in the fixed casing 36 and has projections 39, 40 engaging with lost motion, notches in the freely mounted plate 11 and in the plate 9 which is keyed to the shaft 1<a> and to a plate 35. The plates 9, 11 are adapted to be forced apart by cam projections thereon as in the constructions above described and thus to cause the plates 11, 35 to grip the fixed plate 36<a>. In a further construction multiple braking discs are provided. The Specification as open to inspection under Sect. 91 (3) (a) describes also a construction in which the cam projections 17, 18 are replaced by quick-pitch screw surfaces. This subjectmatter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR300617X | 1927-11-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB300617A true GB300617A (en) | 1930-02-17 |
Family
ID=8888467
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB33637/28A Expired GB300617A (en) | 1927-11-16 | 1928-11-16 | Improved automatic locking or braking apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB300617A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103104577A (en) * | 2013-01-18 | 2013-05-15 | 江***力汽车装备有限公司 | Multifunctional checking tool |
WO2015169065A1 (en) * | 2014-05-06 | 2015-11-12 | 广州广电汇通金融服务有限公司 | Simple locking device |
-
1928
- 1928-11-16 GB GB33637/28A patent/GB300617A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103104577A (en) * | 2013-01-18 | 2013-05-15 | 江***力汽车装备有限公司 | Multifunctional checking tool |
WO2015169065A1 (en) * | 2014-05-06 | 2015-11-12 | 广州广电汇通金融服务有限公司 | Simple locking device |
US9903399B2 (en) | 2014-05-06 | 2018-02-27 | Grg Banking Equipment Co., Ltd. | Simple locking device |
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