GB253808A - An improved device for compressing valve springs of internal combustion engines and for like purposes - Google Patents
An improved device for compressing valve springs of internal combustion engines and for like purposesInfo
- Publication number
- GB253808A GB253808A GB3089225A GB3089225A GB253808A GB 253808 A GB253808 A GB 253808A GB 3089225 A GB3089225 A GB 3089225A GB 3089225 A GB3089225 A GB 3089225A GB 253808 A GB253808 A GB 253808A
- Authority
- GB
- United Kingdom
- Prior art keywords
- jaws
- hand levers
- levers
- jaw
- compressing
- 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
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/24—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same mounting or demounting valves
- B25B27/26—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same mounting or demounting valves compressing the springs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Scissors And Nippers (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
253,808. Jenkins, H. C. Dec. 7, 1925. Pliers.-In a device for compressing valve springs of the kind comprising a pair of parallel jaws movable towards or away from each other by suitable linkwork, the free ends of the operating levers are capable of crossing each other sufficiently to enable them to be subsequently moved towards each other for forcing the jaws apart. The parallel jaw members 1 formed with bifurcated jaws 3 are connected together by two pairs of pivoted crossed links 5, the rear pivot pins 4 moving in slots 2. The hand levers 6 are pivoted together at 8 and to the pivots 4, and are shaped so that their rear ends cross when the levers are closed. Fig 3 shows the positions of the parts after closing the hand levers 6 to compress a valve spring between the jaws, a ring 9 on the hand levers maintaining the spring compressed. Fig. 4 shows the device in use for compressing a spring by an outward movement of one jaw with the other jaw bearing against an abutment, the jaws being moved apart by closing together the extreme recrossing ends of the hand levers. The pivot pin 8 may be adjustable in a series of holes to vary the amount by which the hand levers recross, and the jaw space may be varied by making the jaw members detachable from and reversible on the crossed links. In a modification the forward ends of the hand levers are connected to the forward ends of the crossed links.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3089225A GB253808A (en) | 1925-12-07 | 1925-12-07 | An improved device for compressing valve springs of internal combustion engines and for like purposes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3089225A GB253808A (en) | 1925-12-07 | 1925-12-07 | An improved device for compressing valve springs of internal combustion engines and for like purposes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB253808A true GB253808A (en) | 1926-06-24 |
Family
ID=10314746
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3089225A Expired GB253808A (en) | 1925-12-07 | 1925-12-07 | An improved device for compressing valve springs of internal combustion engines and for like purposes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB253808A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2453041A (en) * | 1944-06-07 | 1948-11-02 | Solar Aircraft Co | Self-locking pliers with crossed handles |
GB2467371A (en) * | 2009-02-03 | 2010-08-04 | Rolls Royce Plc | Component positioning apparatus |
CN106584359A (en) * | 2016-12-21 | 2017-04-26 | 中国南方航空工业(集团)有限公司 | Locking plate locking device |
-
1925
- 1925-12-07 GB GB3089225A patent/GB253808A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2453041A (en) * | 1944-06-07 | 1948-11-02 | Solar Aircraft Co | Self-locking pliers with crossed handles |
GB2467371A (en) * | 2009-02-03 | 2010-08-04 | Rolls Royce Plc | Component positioning apparatus |
CN106584359A (en) * | 2016-12-21 | 2017-04-26 | 中国南方航空工业(集团)有限公司 | Locking plate locking device |
CN106584359B (en) * | 2016-12-21 | 2019-11-26 | 中国航发南方工业有限公司 | Locking plate locking device |
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