US1138797A - Spark-plug. - Google Patents

Spark-plug. Download PDF

Info

Publication number
US1138797A
US1138797A US79497213A US1913794972A US1138797A US 1138797 A US1138797 A US 1138797A US 79497213 A US79497213 A US 79497213A US 1913794972 A US1913794972 A US 1913794972A US 1138797 A US1138797 A US 1138797A
Authority
US
United States
Prior art keywords
plug
spark
slot
electrode
casing
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
Application number
US79497213A
Inventor
Albert Schmidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHAMPION IGNITION CO
Original Assignee
CHAMPION IGNITION CO
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHAMPION IGNITION CO filed Critical CHAMPION IGNITION CO
Priority to US79497213A priority Critical patent/US1138797A/en
Application granted granted Critical
Publication of US1138797A publication Critical patent/US1138797A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • H01T13/16—Means for dissipating heat
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49915—Overedge assembling of seated part

Definitions

  • the invention relates to spark plugs and particularly to the construction of the grounded electrode and manner of mounting the same as hereinafter set forth.
  • Figure l is a perspective View of a portion of a spark plug, showing my improved construction of electrode applied thereto;
  • Fig. 2 is a section through a portion of the plug casing with the detached electrode ready for engagement therewith; and
  • Fig; 3 is an enlarged cross section showing the manner of securing the electrode.
  • the primary object of the invention to obtain-a construction of grounded electrode which is inexpensive to manufacture, may lie-readily attached to the plug casing, will rapidly dissipate the heat generated at the sparking point, and is easily adjusted for'proper spacing of the spark gap.
  • the electrode A is preferably formed *ei' a stamping from sheet metal,
  • the shank portionC is then inserted in this slot, being of a width to project beyond the 40 opposite ends thereof, and is then secured by pinching or upsetting the projecting portions, as shown in Fig. 3. This results in expanding the metal within the slot .so .as to press the opposite surfaces" thereof in close contact With the contacting surfaces of the slot, thereby not only securel fastening the electrode in position, but
  • a spark'plug comprising a plug-casing having a transverse, slot in the inner end wall thereof, and
  • a plug-casing having a transversely-extending slot in the inner end wall thereof, and an electrode formed of sheet metal having a shank portion inserted in said slot-and expanded to form a retaining and heatconducting connection.
  • a spark plug in a spark plug, the combination of a. plug-casing having a transversely-extending slot in the inner end wall thereof, and an electrode of hooked or return-bent form having an enlarged shank and tapering toward the point, said -shank being inserted in said slot to project beyond the opposite sides thereof and being upset to-form a retaining and heat-conducting connection.
  • a plug casing having a transverse slot in the inner end Wall thereof, and an electrode formed of sheet metal having a shank portion inserted in said slot and extending longitudinally from said wall andiexpanded to form a retaining and heatconducting connection.

Landscapes

  • Spark Plugs (AREA)

Description

A. SCHMIDT.
- SPARK PLUG.
APPLICATION man on. Is. 1913.
' 1,138,797, Patented May 11, 1915.
WWW/mm nNrrnD s'rai'rns PATENT mm ALBERT "SCHMIDT,
0F FLINT, MICHIGAN, A
or FLINT, MICHIGAN,'ASSIGNOR 'ro CHAMPION IGNITION COMPANY,
CORPORATION or MICHIGAN.
SPARK-PLUG.
T all whom it may concern Be' it known that I, ALBERT SoHMrD'r, a citizen'oi' the Republic of France, residing at Flint, in the county of Greneseeand Stateof Michigan, have invented'certain new and useful Improvements in Spark-Plugs, of which the following is a specification, reference being had therein to the accompanying drawings.
The invention relates to spark plugs and particularly to the construction of the grounded electrode and manner of mounting the same as hereinafter set forth.
In the drawings: Figure l is a perspective View of a portion of a spark plug, showing my improved construction of electrode applied thereto; Fig. 2 is a section through a portion of the plug casing with the detached electrode ready for engagement therewith; and Fig; 3 is an enlarged cross section showing the manner of securing the electrode.
It is the primary object of the invention "to obtain-a construction of grounded electrode which is inexpensive to manufacture, may lie-readily attached to the plug casing, will rapidly dissipate the heat generated at the sparking point, and is easily adjusted for'proper spacing of the spark gap. To this and the electrode A is preferably formed *ei' a stamping from sheet metal,
having the hooked or return-bent end B for .extending into. proximity to the cooperating electrode, and the widened shank-C for attachment to the plug-casing D. The method of. attachment employed is,
slot E in the Wall of the plug, which is of a width to receive the thickness of the shank.
The shank portionC is then inserted in this slot, being of a width to project beyond the 40 opposite ends thereof, and is then secured by pinching or upsetting the projecting portions, as shown in Fig. 3. This results in expanding the metal within the slot .so .as to press the opposite surfaces" thereof in close contact With the contacting surfaces of the slot, thereby not only securel fastening the electrode in position, but
Specification Of Letters Patent.
sipated through the en .spacing of the spark gap,
first, to cut a lso obtaining Patented-May 11, 1915.
Application filed October 13, 1913. Serial NO. 794,972.
' good heat conduction. As a result, the heat generated by the spark willbe rapidly dislarging section of the electrode until'it reaches the upset shank, from which it will pass through tlfe contactir g Walls and .the slot into the plug-casing; The electrode isalso one which permits of being readily adjusted for proper or hook portion B may be easily bent. That-I claim as my invention is:
l. A spark'plug, comprising a plug-casing having a transverse, slot in the inner end wall thereof, and
from sheet metal inserted in said slot and projecting beyond the sides thereof, the projecting portions beingupset. to expand'the' metal in the slot into heat-conducting contact with the casing.
:2. In a spark plug, a plug-casing having a transversely-extending slot in the inner end wall thereof, and an electrode formed of sheet metal having a shank portion inserted in said slot-and expanded to form a retaining and heatconducting connection.
3. In a spark plug, the combination of a. plug-casing having a transversely-extending slot in the inner end wall thereof, and an electrode of hooked or return-bent form having an enlarged shank and tapering toward the point, said -shank being inserted in said slot to project beyond the opposite sides thereof and being upset to-form a retaining and heat-conducting connection.
4:. In a spark plug, a plug casing having a transverse slot in the inner end Wall thereof, and an electrode formed of sheet metal having a shank portion inserted in said slot and extending longitudinally from said wall andiexpanded to form a retaining and heatconducting connection. r
In testimony whereof I afiix my signature ALICE SWEETWOOD.
as the return-bent .an electrode fashioned.
US79497213A 1913-10-13 1913-10-13 Spark-plug. Expired - Lifetime US1138797A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US79497213A US1138797A (en) 1913-10-13 1913-10-13 Spark-plug.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79497213A US1138797A (en) 1913-10-13 1913-10-13 Spark-plug.

Publications (1)

Publication Number Publication Date
US1138797A true US1138797A (en) 1915-05-11

Family

ID=3206893

Family Applications (1)

Application Number Title Priority Date Filing Date
US79497213A Expired - Lifetime US1138797A (en) 1913-10-13 1913-10-13 Spark-plug.

Country Status (1)

Country Link
US (1) US1138797A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2712685A (en) * 1951-08-06 1955-07-12 Hastings Mfg Co Method of manufacturing spark plug shell and ground electrode assemblies
US4267481A (en) * 1979-04-12 1981-05-12 Sauder Larry D Spark plug with hot/sharp ground electrode
US9948066B2 (en) 2015-07-01 2018-04-17 Federal-Mogul Ignition Gmbh Spark plug

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2712685A (en) * 1951-08-06 1955-07-12 Hastings Mfg Co Method of manufacturing spark plug shell and ground electrode assemblies
US4267481A (en) * 1979-04-12 1981-05-12 Sauder Larry D Spark plug with hot/sharp ground electrode
US9948066B2 (en) 2015-07-01 2018-04-17 Federal-Mogul Ignition Gmbh Spark plug

Similar Documents

Publication Publication Date Title
US2659950A (en) Trim molding fastening means and method
US1672333A (en) License-plate holder
US2319058A (en) Fastener
JP2009054579A (en) Spark plug for internal combustion engine, and manufacturing method thereof
US20160207477A1 (en) Heat shield and method to produce same
US1138797A (en) Spark-plug.
JP4865375B2 (en) Glow plug
US2255469A (en) Fastener
JP6511586B2 (en) clip
US2652043A (en) Spark plug
US2445125A (en) Lock nut
JP5935426B2 (en) Spark plug for internal combustion engine and method for manufacturing the same
US1155514A (en) Spark-plug.
US1805460A (en) Nut and screw fastening
US1291933A (en) Electrical-circuit-closing contact.
US2521317A (en) Molding clip
US2652044A (en) Spark plug
US2319059A (en) Fastening device
JP7207119B2 (en) Anchor plate and anchoring device for seat belt webbing
US2379892A (en) Lock nut
US2614548A (en) Spark plug
US2145165A (en) Electrical connection means
US1738283A (en) Tile lock
US2019836A (en) Glow plug for internal combustion engines
US2488652A (en) Socket contact