US2871741A - Spark plug gapping tool - Google Patents
Spark plug gapping tool Download PDFInfo
- Publication number
- US2871741A US2871741A US2871741DA US2871741A US 2871741 A US2871741 A US 2871741A US 2871741D A US2871741D A US 2871741DA US 2871741 A US2871741 A US 2871741A
- Authority
- US
- United States
- Prior art keywords
- lug
- spark plug
- tool
- gap
- gauge
- 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 - Lifetime
Links
- 210000001847 Jaw Anatomy 0.000 description 12
- 210000001331 Nose Anatomy 0.000 description 8
- 238000010276 construction Methods 0.000 description 6
- 210000004873 upper jaw Anatomy 0.000 description 6
- 230000004048 modification Effects 0.000 description 4
- 238000006011 modification reaction Methods 0.000 description 4
- 241000698776 Duma Species 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 210000004874 lower jaw Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
-
- 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
- B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
- B25B7/02—Jaws
- B25B7/04—Jaws adjustable
-
- 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
- B25B27/0035—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for motor-vehicles
-
- 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
- B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
- B25B7/06—Joints
- B25B7/08—Joints with fixed fulcrum
Definitions
- This invention relates to an improved spark plug gapping tool of the pliers and rotary gauge type.
- the primary object of the invention is to provide a more practical and efficient tool of this kind which can be applied and operated more quickly, is simple in construction, and is composed of a small number of simple and easily assembled parts.
- Another object of the invention is to provide a tool of the character indicated, which can be made in wellfinished, rugged, and serviceable forms at relatively low cost, is easily used, and is highly satisfatory for the purpose intended.
- Figure 1 is a perspective view of a tool of the invention, shown applied to a spark plug shown in phantom lines;
- Figure 2 is an enlarged fragmentary side elevational view of the tool
- Figure 3 is a fragmentary top plan view of Figure 1 the spark plug being shown in phantom lines;
- Figure 4 is a fragmentary vertical transverse sectional view taken substantially on line 44 of Figure 2, an associated spark plug being shown in phantom lines.
- the illustrated tool is usable for adjusting the gap between the center electrode 12 and the radial electrode 14 of a spark plug, indicated generally at 16, the radial electrode 14 being bendable toward and away from the upper end of the center electrode 12.
- the gapping tool comprises a pair of crossed levers and 22 pivoted on a pivot pin 24 extending therethrough, and having handle portions 26 and 28, respectively, and upper and lower jaws 30 and 32, respectively.
- the upper jaw 30 includes a nose 35 which terminates at is forward end in a longitudinally extending fiat lug 34 whose underside is flush with the flat straight underside 33 of the nose 35.
- the lower jaw 32 lacks a nose, like the nose 35, whose place is taken by an elongated laterally angled arm 36 having a forward end 37 in which is a vertical bore 38 through which extends a vertical headed pin 40, rotatably mounting on the upper side of the arm 36 an electrode gap gauge, indicated generally at 42.
- the gauge 42 comprises a disc 44 having thereon circumferentially spaced radial gauge lugs 46 of different thicknesses. On the upper surface of the disc 44 are indicia 48 identifying the dilferent gauge lugs.
- the gauge lugs 46 are adapted to be selectively positioned beneath and in spaced relation below the upper jaw lug 34 by rotating the disc 44.
- a spark plug 16 is gapped by positioning the center electrode 12 under the upper jaw lug 30, with a selected gauge lug 46 between the center electrode 12 and the radial electrode 14. Thereupon the handle portions 26 and 28 are compressed toward each other. If the gap between the electrodes corresponds to the thickness of the gauge lug 46 used, no change in the gap results, but if the gap is larger than the thickness of the gauge lug 46 used, the gap between the electrodes will be closed to the extent necessary to provide a gap corresponding to the thickness of the gap lug used, by the bending pressure of the upper lug 34 on the radial electrode 14.
- a thinner gauge lug 46 is placed between the electrodes and the tool twisted to increase the gap, whereafter the above described procedure is used to exactly gap the electrodes.
- a tool for adjusting the air gap between the outer and central electrodes of a spark plug, said tool comprising a pair of opposing, complemental jaws having crossed handles pivotally connected together for moving the jaws toward and away from each other, one jaw having a forwardly projecting lug constituting an axial prolongation thereof, said lug having an underface disposed in a plane that contains the pivot axis of the handles, the other jaw terminating inwardly of said one jaw and having an extension arm extending laterally outwardly and projecting forwardly therefrom, said arm terminating in a free outer end disposed substantially in lateral alignment with said lug, a disc rotatably mounted on the free end of the arm and rotatable about an axis perpendicular to the pivot axis of the handles, said lug having a side facing the arm and disposed in a plane perpendicular to and tangentially disposed relative to an extension of the curvilinear plane in which the periphery of the disc lies, said disc having integral gauging .lug
Description
Feb; 3, 1959 w. w. WEISBEICKER IflAL 2,871,741
SPARK PLUG GAPPING TOOL Filed Sept. 28. 1956 INVHVTORS WALTER wwasaazmesz BY aeuawwemsecnz AT ORNEY-5 United dtatcs Patent SPARK PLUG GAPPING TODL Walter W. Weisbecker and Irene M. Weisbecker, Rantoul, Ill.
' Application September 28, 1956, Serial No. 612,637
1 Claim. (Cl. 81-15) This invention relates to an improved spark plug gapping tool of the pliers and rotary gauge type.
The primary object of the invention is to provide a more practical and efficient tool of this kind which can be applied and operated more quickly, is simple in construction, and is composed of a small number of simple and easily assembled parts.
Another object of the invention is to provide a tool of the character indicated, which can be made in wellfinished, rugged, and serviceable forms at relatively low cost, is easily used, and is highly satisfatory for the purpose intended.
These together with other objects and advantages which will become apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout the several views, and in which:
Figure 1 is a perspective view of a tool of the invention, shown applied to a spark plug shown in phantom lines;
Figure 2 is an enlarged fragmentary side elevational view of the tool;
Figure 3 is a fragmentary top plan view of Figure 1 the spark plug being shown in phantom lines; and
Figure 4 is a fragmentary vertical transverse sectional view taken substantially on line 44 of Figure 2, an associated spark plug being shown in phantom lines.
Referring to the drawings in detail, the illustrated tool, indicated generally at 10, is usable for adjusting the gap between the center electrode 12 and the radial electrode 14 of a spark plug, indicated generally at 16, the radial electrode 14 being bendable toward and away from the upper end of the center electrode 12.
The gapping tool comprises a pair of crossed levers and 22 pivoted on a pivot pin 24 extending therethrough, and having handle portions 26 and 28, respectively, and upper and lower jaws 30 and 32, respectively.
The upper jaw 30 includes a nose 35 which terminates at is forward end in a longitudinally extending fiat lug 34 whose underside is flush with the flat straight underside 33 of the nose 35. The lower jaw 32 lacks a nose, like the nose 35, whose place is taken by an elongated laterally angled arm 36 having a forward end 37 in which is a vertical bore 38 through which extends a vertical headed pin 40, rotatably mounting on the upper side of the arm 36 an electrode gap gauge, indicated generally at 42.
The gauge 42 comprises a disc 44 having thereon circumferentially spaced radial gauge lugs 46 of different thicknesses. On the upper surface of the disc 44 are indicia 48 identifying the dilferent gauge lugs. The gauge lugs 46 are adapted to be selectively positioned beneath and in spaced relation below the upper jaw lug 34 by rotating the disc 44.
As shown in Figure 4, a spark plug 16 is gapped by positioning the center electrode 12 under the upper jaw lug 30, with a selected gauge lug 46 between the center electrode 12 and the radial electrode 14. Thereupon the handle portions 26 and 28 are compressed toward each other. If the gap between the electrodes corresponds to the thickness of the gauge lug 46 used, no change in the gap results, but if the gap is larger than the thickness of the gauge lug 46 used, the gap between the electrodes will be closed to the extent necessary to provide a gap corresponding to the thickness of the gap lug used, by the bending pressure of the upper lug 34 on the radial electrode 14.
If the gap between the electrodes 12 and 14 is too small, a thinner gauge lug 46 is placed between the electrodes and the tool twisted to increase the gap, whereafter the above described procedure is used to exactly gap the electrodes.
The foregoing is considered as illustrative only of the principles of the invention. Since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly all suitable modifications and equivalents may be resorted to, as fall within the scope of the appended claims.
What is claimed as new is as follows:
A tool. for adjusting the air gap between the outer and central electrodes of a spark plug, said tool comprising a pair of opposing, complemental jaws having crossed handles pivotally connected together for moving the jaws toward and away from each other, one jaw having a forwardly projecting lug constituting an axial prolongation thereof, said lug having an underface disposed in a plane that contains the pivot axis of the handles, the other jaw terminating inwardly of said one jaw and having an extension arm extending laterally outwardly and projecting forwardly therefrom, said arm terminating in a free outer end disposed substantially in lateral alignment with said lug, a disc rotatably mounted on the free end of the arm and rotatable about an axis perpendicular to the pivot axis of the handles, said lug having a side facing the arm and disposed in a plane perpendicular to and tangentially disposed relative to an extension of the curvilinear plane in which the periphery of the disc lies, said disc having integral gauging .lugs of varying thickness extending radially from the periphery thereof and disposedv in circumferentially spaced fashion on the periphery, said gauging lugs being of a length substantially equal to the width of said lug and each gauging lug having a face adapted to confront said underface of said lug with each gauging lug being adapted to selectively seat on a central electrode and having it face bearing under an outer electrode and with the lug engaging at its underface on the outer electrode and clampingly cooperating with the selected gauging lug to bend the outer electrode relative to the central electrode.
References Cited in the file of this patent UNITED STATES PATENTS 1,384,209 OToole July 1.2, 1921 2,492,380 Duma Dec. 27, 1949 2,645,142 Schwenzfeier July 14, 1953 2,670,643 Clark Mar. 2, 1954 FOREIGN PATENTS 125,449 Australia Sept. 12, 1947
Publications (1)
Publication Number | Publication Date |
---|---|
US2871741A true US2871741A (en) | 1959-02-03 |
Family
ID=3447537
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US2871741D Expired - Lifetime US2871741A (en) | Spark plug gapping tool |
Country Status (1)
Country | Link |
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US (1) | US2871741A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4459716A (en) * | 1982-09-23 | 1984-07-17 | Mario Valadez | Combination gauge-socket wrench |
US5471759A (en) * | 1994-08-19 | 1995-12-05 | A&E Manufacturing Co., Inc. | Spark plug gauge with gap adjuster |
CN105514809A (en) * | 2014-10-08 | 2016-04-20 | 通用电气公司 | Spark plug electrode gap setting tool |
US9929544B1 (en) | 2017-07-25 | 2018-03-27 | Michael Swords | Spark plug gapping tool |
US20220311220A1 (en) * | 2021-03-24 | 2022-09-29 | GP Productions LLC | Spark plug gapping tool |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1384209A (en) * | 1920-07-03 | 1921-07-12 | O'toole John | Spark-plug-adjusting device |
US2492380A (en) * | 1946-08-17 | 1949-12-27 | Duma Stephen | Spark plug adjustment tool |
US2645142A (en) * | 1951-01-22 | 1953-07-14 | James T Clark | Spark plug adjusting pliers |
US2670643A (en) * | 1952-11-03 | 1954-03-02 | William H Clark | Spark gap adjusting pliers |
-
0
- US US2871741D patent/US2871741A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1384209A (en) * | 1920-07-03 | 1921-07-12 | O'toole John | Spark-plug-adjusting device |
US2492380A (en) * | 1946-08-17 | 1949-12-27 | Duma Stephen | Spark plug adjustment tool |
US2645142A (en) * | 1951-01-22 | 1953-07-14 | James T Clark | Spark plug adjusting pliers |
US2670643A (en) * | 1952-11-03 | 1954-03-02 | William H Clark | Spark gap adjusting pliers |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4459716A (en) * | 1982-09-23 | 1984-07-17 | Mario Valadez | Combination gauge-socket wrench |
US5471759A (en) * | 1994-08-19 | 1995-12-05 | A&E Manufacturing Co., Inc. | Spark plug gauge with gap adjuster |
CN105514809A (en) * | 2014-10-08 | 2016-04-20 | 通用电气公司 | Spark plug electrode gap setting tool |
US9431797B2 (en) * | 2014-10-08 | 2016-08-30 | General Electric Company | Spark plug electrode gap setting tool |
CN105514809B (en) * | 2014-10-08 | 2019-03-05 | 通用电气公司 | Spark clearance setting means |
US9929544B1 (en) | 2017-07-25 | 2018-03-27 | Michael Swords | Spark plug gapping tool |
US20220311220A1 (en) * | 2021-03-24 | 2022-09-29 | GP Productions LLC | Spark plug gapping tool |
US11563309B2 (en) * | 2021-03-24 | 2023-01-24 | GP Productions LLC | Spark plug gapping tool |
US11757263B2 (en) | 2021-03-24 | 2023-09-12 | GP Productions LLC | Spark plug gapping tool |
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