GB236722A - A new or improved hand tool or device for use in lifting the springs of internal-combustion engine valves - Google Patents
A new or improved hand tool or device for use in lifting the springs of internal-combustion engine valvesInfo
- Publication number
- GB236722A GB236722A GB1548724A GB1548724A GB236722A GB 236722 A GB236722 A GB 236722A GB 1548724 A GB1548724 A GB 1548724A GB 1548724 A GB1548724 A GB 1548724A GB 236722 A GB236722 A GB 236722A
- Authority
- GB
- United Kingdom
- Prior art keywords
- jaw members
- pair
- pivoted
- crossed
- 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
-
- 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)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
236,722. Terry, A. V. June 27, 1924. Pliers.-A valve-spring lifting-tool, of the type wherein a pair of jaws are opened and closed in parallel movement by toggle or crossed link action, comprises a pair of parallel jaw members, crossed links connected to the jaw members, and a pair of operating handles in the form of extensions of the crossed links. The parallel jaw members a<1>, b<1> are connected together by the cross links d, e, pivoted together at f and having rearward extensions constituting operating handles d<1>, e<1>. The sheet metal of the jaw members is twisted at the front into a plane at right angles to provide two jaws a, b, one slotted at a<2> and the other bevelled at b<2>, and adapted when the handles are wide open to be forced between the valve tappet and the seating k<1> of the valve-spring k. Stop pins b<3> are provided on the jaw b. The forward ends of the crossed links d, e are pivoted to the jaw members at g, g<1>, and their rear ends carry pins h, h<1> engaging slots a<4>, b<4> in the jaw members. A locking- catch i is pivoted at g<1> and is provided with a slot i<2> having a series of notches i<3> adapted to engage automatically with the pin h<1> under the influence of the spring j for holding the valvespring in the compressed condition.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1548724A GB236722A (en) | 1924-06-27 | 1924-06-27 | A new or improved hand tool or device for use in lifting the springs of internal-combustion engine valves |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1548724A GB236722A (en) | 1924-06-27 | 1924-06-27 | A new or improved hand tool or device for use in lifting the springs of internal-combustion engine valves |
Publications (1)
Publication Number | Publication Date |
---|---|
GB236722A true GB236722A (en) | 1925-07-16 |
Family
ID=10059986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1548724A Expired GB236722A (en) | 1924-06-27 | 1924-06-27 | A new or improved hand tool or device for use in lifting the springs of internal-combustion engine valves |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB236722A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2577474A (en) * | 1947-05-12 | 1951-12-04 | Roy G Miller | Valve lifter |
US4243257A (en) * | 1978-04-04 | 1981-01-06 | Lansing Bagnall Limited | Gripper mechanism |
CN103659803A (en) * | 2013-12-03 | 2014-03-26 | 国网河南省电力公司商丘供电公司 | High-altitude robot hand clamp based on cross connecting rod force expansion principle |
-
1924
- 1924-06-27 GB GB1548724A patent/GB236722A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2577474A (en) * | 1947-05-12 | 1951-12-04 | Roy G Miller | Valve lifter |
US4243257A (en) * | 1978-04-04 | 1981-01-06 | Lansing Bagnall Limited | Gripper mechanism |
CN103659803A (en) * | 2013-12-03 | 2014-03-26 | 国网河南省电力公司商丘供电公司 | High-altitude robot hand clamp based on cross connecting rod force expansion principle |
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