US1376844A - Combined spark-plug terminal and protector - Google Patents

Combined spark-plug terminal and protector Download PDF

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Publication number
US1376844A
US1376844A US324076A US32407619A US1376844A US 1376844 A US1376844 A US 1376844A US 324076 A US324076 A US 324076A US 32407619 A US32407619 A US 32407619A US 1376844 A US1376844 A US 1376844A
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Prior art keywords
protector
terminal
plug terminal
lining
conductor
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Expired - Lifetime
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US324076A
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Weber Edmund Herbert
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Individual
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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
    • H01T13/02—Details
    • H01T13/06—Covers forming a part of the plug and protecting it against adverse environment

Definitions

  • a one-piece combined terminal and protector is provided for conveniently attaching the wire to the plug without tools or solder, and without the possibility of receiving a shock from contact with the parts.
  • a further object is to provide a device ofthe character specified of insulating ma terial, having a metal lining providing a positive means for preventing the terminal from becoming detached from the spark plug accidentally, and to prevent the gripping surfaces wearing out from frequent attachment for cleaning or changing.
  • a further object is to provide a device that will fit all makes of spark plug terminals regardless of size.
  • Figure 1 is a side view'of the spark plug having the protector, with the protector in section,
  • Fig. 2 is a view of the protector removed showing the metal lining
  • Fig. 3 is a section through the lining
  • Fig. 4- is a similar view of another form of lining
  • Fig. 5 is a front view of the protector.
  • a spark plug 1 of usual construction is provided, the said plug having the usual terminal 2 with which the conductor 3 is to be connected.
  • the protector which is of'insulating material, as for instance, soft rubber consists of portions 4: and 5, extending at approximately right angles with respect to each other.
  • the portion 4: of the protector is frustoconical in shape, adapted to fit over the end of the spark plug, and the portion 5 has a substantially cylindrical bore 6 for receiving the end of the conductor.
  • the metal portion of the conductor is bared as shown in Fig. 1, to engage the terminal.
  • bypassages 7 and 8 adapted for the spark plug terminal and the bared wire respectively. It will be evident that with the conductor in place, in the protectoras shown in Fig. 1, when the protector is pushed onto the spark plug, the terminal 7 will engage the bared Wire making a perfect contact.
  • the protector 9 which is similar to that shown in Fig. 1 has a metal lining for the terminal.
  • This lining may be as shown in Fig. 3 or as shown in Fig. 4;.
  • the lining consists of sections 10 and 11 each of which is a half cylinder, that is, the entire lining is of cylindrical form slit diametrically lnto two halves.
  • each of these sections is roughened or corrugated as shown to insure a close engagement in the opening 12 which corresponds with the opening 7 of Fig. 1, and one of the sections has a radial opening 13 for the passage of the conductor.
  • the lower ends of the sections are counterbored or reamed as shown to facilitate the entrance of the terminal 7.
  • the lining consists of sections 1 1 and 15 similar to the sections 10 and 11 in that they have roughened exteriors, and in that the section 15 has an opening 16 for the conductor.
  • the split in the linings is placed at slots or recesses in the rubber, so that by pressing at these points the sections may be separate when desired for any purpose.
  • the linings are'vulcanized in place. It will be understood that the conductor is cemented or otherwise secured in the protector. With the conductor sosecured, it will be evident that when the protector is placed on the spark plug, there is no possibility of the bare hand touching the parts to cause shock.
  • the metal lining insures a connection between the terminal and the conductor over a wider area than would be the case if such lining were omitted. Furthermore, the parts are conveniently attached and detached, and no tools are necessary.
  • a combined connector and protector for spark plugs and the connections comprising a member of resilient insulatin material composed of two portions extending at an angle with respect to each other and cored to fit closely and receive the end of the plug and the connection, each cored portion havmg a reduced axlal extenslon at His lnner end and sald extensions communicating to permit the connection to touch the terminal of the plug Within the protector, the reduced 10 portion for the plug terminal having a metal liner which is sectional to permit it to be expanded and which has an internal circumferentially extending rib for the purpose specified.

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  • Spark Plugs (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Description

E. H. WEBER.
COMBINED SPARK PLUG TERMINAL AND PROTECTOR.
APPLICATION FILED SEFT.16, l9l9. I
Patented May 3, 1921.
WITNESSES I/V l/EIV TOR BE BY V ATTORNEYS COMBINED SPARK-PLUG TERMINAL AND PROTECTOR.
Specification of Letters Patent.
Patented May 3, 1921.
Application filed September 16, 1919. Serial No. 324,076.
ter specified, wherein a one-piece combined terminal and protector is provided for conveniently attaching the wire to the plug without tools or solder, and without the possibility of receiving a shock from contact with the parts.
A further object is to provide a device ofthe character specified of insulating ma terial, having a metal lining providing a positive means for preventing the terminal from becoming detached from the spark plug accidentally, and to prevent the gripping surfaces wearing out from frequent attachment for cleaning or changing.
A further object is to provide a device that will fit all makes of spark plug terminals regardless of size.
In the drawings Figure 1 is a side view'of the spark plug having the protector, with the protector in section,
Fig. 2 is a view of the protector removed showing the metal lining,
Fig. 3 is a section through the lining,
Fig. 4-is a similar view of another form of lining,
Fig. 5 is a front view of the protector.
In the present embodiment of the inven tion, a spark plug 1 of usual construction is provided, the said plug having the usual terminal 2 with which the conductor 3 is to be connected. The protector which is of'insulating material, as for instance, soft rubber consists of portions 4: and 5, extending at approximately right angles with respect to each other.
The portion 4: of the protector is frustoconical in shape, adapted to fit over the end of the spark plug, and the portion 5 has a substantially cylindrical bore 6 for receiving the end of the conductor. The metal portion of the conductor is bared as shown in Fig. 1, to engage the terminal.
At the junction of the portions 4 and 5,
the bore of the flaring portion 4, and that of the portion 5 are connected bypassages 7 and 8 adapted for the spark plug terminal and the bared wire respectively. It will be evident that with the conductor in place, in the protectoras shown in Fig. 1, when the protector is pushed onto the spark plug, the terminal 7 will engage the bared Wire making a perfect contact.
In the construction shown in Fig. 2, the protector 9 which is similar to that shown in Fig. 1 has a metal lining for the terminal. This lining may be as shown in Fig. 3 or as shown in Fig. 4;. In Fig. 3, the lining consists of sections 10 and 11 each of which is a half cylinder, that is, the entire lining is of cylindrical form slit diametrically lnto two halves.
The outer surface of each of these sections is roughened or corrugated as shown to insure a close engagement in the opening 12 which corresponds with the opening 7 of Fig. 1, and one of the sections has a radial opening 13 for the passage of the conductor. The lower ends of the sections are counterbored or reamed as shown to facilitate the entrance of the terminal 7.
In the construction shown in Fig. 4, the lining consists of sections 1 1 and 15 similar to the sections 10 and 11 in that they have roughened exteriors, and in that the section 15 has an opening 16 for the conductor.
These sections however have an internal circumferentially extending rib 17 which is adapted to engage 1n the thread of the spark plug terminal to more securely hold the parts together.
The split in the linings is placed at slots or recesses in the rubber, so that by pressing at these points the sections may be separate when desired for any purpose. The linings are'vulcanized in place. It will be understood that the conductor is cemented or otherwise secured in the protector. With the conductor sosecured, it will be evident that when the protector is placed on the spark plug, there is no possibility of the bare hand touching the parts to cause shock.
The metal lining insures a connection between the terminal and the conductor over a wider area than would be the case if such lining were omitted. Furthermore, the parts are conveniently attached and detached, and no tools are necessary.
I claim A combined connector and protector for spark plugs and the connections comprising a member of resilient insulatin material composed of two portions extending at an angle with respect to each other and cored to fit closely and receive the end of the plug and the connection, each cored portion havmg a reduced axlal extenslon at His lnner end and sald extensions communicating to permit the connection to touch the terminal of the plug Within the protector, the reduced 10 portion for the plug terminal having a metal liner which is sectional to permit it to be expanded and which has an internal circumferentially extending rib for the purpose specified.
EDMUND HERBERT WEBER.
US324076A 1919-09-16 1919-09-16 Combined spark-plug terminal and protector Expired - Lifetime US1376844A (en)

Priority Applications (1)

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US324076A US1376844A (en) 1919-09-16 1919-09-16 Combined spark-plug terminal and protector

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US324076A US1376844A (en) 1919-09-16 1919-09-16 Combined spark-plug terminal and protector

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US1376844A true US1376844A (en) 1921-05-03

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2480545A (en) * 1947-06-06 1949-08-30 Sealtight Corp Moisture shield for spark plugs
US2550358A (en) * 1948-04-09 1951-04-24 Grand John Peter Le Spark plug terminal protector
US2636065A (en) * 1950-07-01 1953-04-21 Cons Vultee Aircraft Corp Insulating sheath for terminal post
US2665673A (en) * 1952-10-30 1954-01-12 Gen Motors Corp Spark plug boot
US2690541A (en) * 1950-04-14 1954-09-28 Carleton S Marden Waterproof connection for spark plug terminals and the like
US2717588A (en) * 1950-11-27 1955-09-13 John P Arvanitakis Spark plug protectors
US2721986A (en) * 1952-03-12 1955-10-25 Thomas & Betts Corp Self-insulated electrical connector
US2724092A (en) * 1951-05-08 1955-11-15 Essex Wire Corp Insulated terminal
US2730562A (en) * 1951-01-11 1956-01-10 Nat Products Corp Waterproof spark plug shield
US2745075A (en) * 1951-01-31 1956-05-08 Essex Wire Corp Insulated terminal
US2750573A (en) * 1953-12-08 1956-06-12 Stanley E Mika Sure lock connectors
US2853691A (en) * 1956-01-25 1958-09-23 Mccord Jesse Lee Tune-up extension for use with spark plugs for testing purposes
US3376541A (en) * 1966-03-11 1968-04-02 Rfe Corp Safe break terminator
DE3835984A1 (en) * 1987-11-13 1989-05-24 Prestolite Wire Corp RIGID COVER FOR A SPARK PLUG AND THE RELATED SHOE

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2480545A (en) * 1947-06-06 1949-08-30 Sealtight Corp Moisture shield for spark plugs
US2550358A (en) * 1948-04-09 1951-04-24 Grand John Peter Le Spark plug terminal protector
US2690541A (en) * 1950-04-14 1954-09-28 Carleton S Marden Waterproof connection for spark plug terminals and the like
US2636065A (en) * 1950-07-01 1953-04-21 Cons Vultee Aircraft Corp Insulating sheath for terminal post
US2717588A (en) * 1950-11-27 1955-09-13 John P Arvanitakis Spark plug protectors
US2730562A (en) * 1951-01-11 1956-01-10 Nat Products Corp Waterproof spark plug shield
US2745075A (en) * 1951-01-31 1956-05-08 Essex Wire Corp Insulated terminal
US2724092A (en) * 1951-05-08 1955-11-15 Essex Wire Corp Insulated terminal
US2721986A (en) * 1952-03-12 1955-10-25 Thomas & Betts Corp Self-insulated electrical connector
US2665673A (en) * 1952-10-30 1954-01-12 Gen Motors Corp Spark plug boot
US2750573A (en) * 1953-12-08 1956-06-12 Stanley E Mika Sure lock connectors
US2853691A (en) * 1956-01-25 1958-09-23 Mccord Jesse Lee Tune-up extension for use with spark plugs for testing purposes
US3376541A (en) * 1966-03-11 1968-04-02 Rfe Corp Safe break terminator
DE3835984A1 (en) * 1987-11-13 1989-05-24 Prestolite Wire Corp RIGID COVER FOR A SPARK PLUG AND THE RELATED SHOE

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