US1395570A - Testing device for spark-plugs - Google Patents
Testing device for spark-plugs Download PDFInfo
- Publication number
- US1395570A US1395570A US371613A US37161320A US1395570A US 1395570 A US1395570 A US 1395570A US 371613 A US371613 A US 371613A US 37161320 A US37161320 A US 37161320A US 1395570 A US1395570 A US 1395570A
- Authority
- US
- United States
- Prior art keywords
- spark
- plugs
- plug
- conductor
- testing device
- 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
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T13/00—Sparking plugs
- H01T13/58—Testing
Definitions
- y invention relates to devices for short circuiting the spark. plugs of internal combustion engines, for the purpose of testing the action of the plug or'plugs which remain in operation.
- the particular object of the invention is to provide a short circuiting device which is of simple, cheap and durable construction, and which may be very easily and quickly placed on the spark plugs and removed, in the testing operation.
- Figure 1 is a side elevation of the device applied to a spark plug in position on an engine cylinder.
- Fig. 2 is a top plan of the device removed from the plug
- Fig. 3 is a vertical section.
- the invention in the preferred form comprises a metallic conductor or contact member 1, and a clip 2, a handle 3, and means such as a screw 4, for securing the handle to the conductor and clio.
- the conductor and clip are formed of a single piece of sheet metal of moderate thickness. This may be any suitable metal oralloy, but may preferably be of spring sheet steel.
- the conductor or connector 1 usually has its upper part 5 relatively short and curved-away from the handle at a point near its end 6, and provided with a recess or cavity 7.
- the lower part 8 of the conductor is usually relatively longer and this part is usually slightly curved in a direction away from the handle as shown.
- the clip 2 comprises two arms, 9 and 10, extending from the conductor 1. Each of these arms has a curved portion 11, forming, together, a space 12 adapted to receive the insulator or porcelain of the spark plug, and
- each arm has another curved portion 13, terminatlng in ends 14, which are outwardlv flared.
- sulating material such as wood, and may be conveniently secured to the metal portion of the device by a screw 4, or in any other suitable way.
- testing device may be quickly placed on a plug to short circuit it, and quickl removed and placed on another plug. vidently by providing a plurality of the short circuiting devices, say three for a four cylinder engine, any one or more of the plugs may be short test the action plugs and by shifting the devices from one plug to another, ing improperly may be quickly detected.
- a short circuiting device -for spark plugs metallic conductor adapted 7 upper terminal and the body of a spark plug, a spring clip located intermediate the ends of the conductor and adapted to embrace the insulating portion of the plug, between the terminal and the body, and a handle of insulating material.
- a short circuiting device for spark plugs comprising a relatively long conductor having its upper end adapted to eng the terminal of a spark plug and its lower end adapted to engage the body of the plug,
- a spring clip consisting of two arms extending from the conductor and adapted to embrace the porcelain of the spark plug, regardless of considerable variationin the diameter of the porcelain, and a handle of insulating material joined to the conductor.
- a short circuiting device for spark plugs comprising a metallic body of spring sheet metal including a relatively long conductor having a curved and recessed upper end, adapted to engage the terminal of a spark plug, and a lower end adapted to engage the body of the plug, regardless of considerable variation in the distance be of considerable variation in the tween the terminal and the body, and also including a spring clip consisting of two arms extending from the sides of the con ductor and bent inwardly and then outwardly providing flaring ends, and adapted to embrace the porcelain of a spark plug, a handle of insulating material and a screw connecting the handle to the metallic body of the device at a point near the intersection of the conductor and the clip.
Description
G. S. P. HOLLAND JR.
TESTING DEVICE FOR SPARK PLUGS.
APPLICATION men APR. 6, 1920.
1,395,570. PatentedNov. 1,1921.
7360f v r9 2 f6, F1518 J '1] J ,7 Z4,9- i" I 14 VII 4 a Z a W 1,9 (I 7/ W l mum I Swmmtm S Mq UNITED STATES PATENT OFFICE.
GRANVILLE S. P. HOLLAND, JR., OF NORFOLK, VIRGINIA.
TESTING DEVIC FOR SPARK-PLUGS.
T 0 all 10 Item. it may concern:
Be it knownthat I. GRANVILLE S. P. HoL- LAND, Jr., a citizen of the United States, residing at Norfolk, in the county of Norfolk and State of Virginia, have invented certain new and useful Improvements in Testing Devices for Spark-Plugs, of which the following is a specification. 4
y invention relates to devices for short circuiting the spark. plugs of internal combustion engines, for the purpose of testing the action of the plug or'plugs which remain in operation.
The particular object of the invention is to provide a short circuiting device which is of simple, cheap and durable construction, and which may be very easily and quickly placed on the spark plugs and removed, in the testing operation.
The accompanying drawing shows one modification of the invention. After considering this in connection with the accompanying description, persons skilled in the art will understand that variations may be made without departing from the principles of the invention, and I do not limit myself to details, except as claimed.
Figure 1 is a side elevation of the device applied to a spark plug in position on an engine cylinder.
Fig. 2 is a top plan of the device removed from the plug, and
Fig. 3 is a vertical section.
The invention in the preferred form comprises a metallic conductor or contact member 1, and a clip 2, a handle 3, and means such as a screw 4, for securing the handle to the conductor and clio.
Usually, as shown, the conductor and clip are formed of a single piece of sheet metal of moderate thickness. This may be any suitable metal oralloy, but may preferably be of spring sheet steel. The conductor or connector 1, usually has its upper part 5 relatively short and curved-away from the handle at a point near its end 6, and provided with a recess or cavity 7. The lower part 8 of the conductor is usually relatively longer and this part is usually slightly curved in a direction away from the handle as shown.
The clip 2 comprises two arms, 9 and 10, extending from the conductor 1. Each of these arms has a curved portion 11, forming, together, a space 12 adapted to receive the insulator or porcelain of the spark plug, and
Specification of Letters Patent.
Patented Nov. *1, 1921. 1920. Serial No. 371,613.
outwardly from the curved portion 11, each arm has another curved portion 13, terminatlng in ends 14, which are outwardlv flared. U
sulating material, such as wood, and may be conveniently secured to the metal portion of the device by a screw 4, or in any other suitable way. I
against the metal terminal T and holds the lower connector against the nut N, wh' stitutes the metallic terminal members at the top of the plug.
t is obvious, without further description, how the testing device may be quickly placed on a plug to short circuit it, and quickl removed and placed on another plug. vidently by providing a plurality of the short circuiting devices, say three for a four cylinder engine, any one or more of the plugs may be short test the action plugs and by shifting the devices from one plug to another, ing improperly may be quickly detected.
aving thus described my invention, what I claim is:
1. A short circuiting device -for spark plugs, metallic conductor adapted 7 upper terminal and the body of a spark plug, a spring clip located intermediate the ends of the conductor and adapted to embrace the insulating portion of the plug, between the terminal and the body, and a handle of insulating material.
2. A short circuiting device for spark plugs, comprising a relatively long conductor having its upper end adapted to eng the terminal of a spark plug and its lower end adapted to engage the body of the plug,
regardless distance between said terminal and body, a spring clip consisting of two arms extending from the conductor and adapted to embrace the porcelain of the spark plug, regardless of considerable variationin the diameter of the porcelain, and a handle of insulating material joined to the conductor.
3. A short circuiting device for spark plugs, comprising a metallic body of spring sheet metal including a relatively long conductor having a curved and recessed upper end, adapted to engage the terminal of a spark plug, and a lower end adapted to engage the body of the plug, regardless of considerable variation in the distance be of considerable variation in the tween the terminal and the body, and also including a spring clip consisting of two arms extending from the sides of the con ductor and bent inwardly and then outwardly providing flaring ends, and adapted to embrace the porcelain of a spark plug, a handle of insulating material and a screw connecting the handle to the metallic body of the device at a point near the intersection of the conductor and the clip.
In testimony whereof I afiiX my signature in presence of two witnesses.
GRANVILLE S. P. HOLLAND, J R. lVitnesses J. PHILLIPS, E. HENDERSON.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US371613A US1395570A (en) | 1920-04-06 | 1920-04-06 | Testing device for spark-plugs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US371613A US1395570A (en) | 1920-04-06 | 1920-04-06 | Testing device for spark-plugs |
Publications (1)
Publication Number | Publication Date |
---|---|
US1395570A true US1395570A (en) | 1921-11-01 |
Family
ID=23464667
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US371613A Expired - Lifetime US1395570A (en) | 1920-04-06 | 1920-04-06 | Testing device for spark-plugs |
Country Status (1)
Country | Link |
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US (1) | US1395570A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3238447A (en) * | 1961-08-15 | 1966-03-01 | Gen Motors Corp | Igniter plug with spark-sensing means |
US3274487A (en) * | 1961-08-15 | 1966-09-20 | Gen Motors Corp | Igniter plug with spark-sensing means |
-
1920
- 1920-04-06 US US371613A patent/US1395570A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3238447A (en) * | 1961-08-15 | 1966-03-01 | Gen Motors Corp | Igniter plug with spark-sensing means |
US3274487A (en) * | 1961-08-15 | 1966-09-20 | Gen Motors Corp | Igniter plug with spark-sensing means |
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