US3893799A - Abrasive wheels for cigarette lighters and method of making same - Google Patents

Abrasive wheels for cigarette lighters and method of making same Download PDF

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Publication number
US3893799A
US3893799A US353990A US35399073A US3893799A US 3893799 A US3893799 A US 3893799A US 353990 A US353990 A US 353990A US 35399073 A US35399073 A US 35399073A US 3893799 A US3893799 A US 3893799A
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US
United States
Prior art keywords
plate
wheel
strip
abrasive
teeth
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
US353990A
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English (en)
Inventor
Robert Hocq
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.)
Societe Franco Hispano Americaine FRANCISPAM
Original Assignee
Societe Franco Hispano Americaine FRANCISPAM
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 Societe Franco Hispano Americaine FRANCISPAM filed Critical Societe Franco Hispano Americaine FRANCISPAM
Application granted granted Critical
Publication of US3893799A publication Critical patent/US3893799A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q2/00—Lighters containing fuel, e.g. for cigarettes
    • F23Q2/34—Component parts or accessories
    • F23Q2/46—Friction wheels; Arrangement of friction wheels

Definitions

  • ABSTRACT Abrasive wheel for cigarette lighters consists of cylin- 431/ 12 3 63; drical plate having teeth along one edge and a knurled 58] Fieid outer cylindrical surface.
  • the wheel may be formed by 13"6 bending a strip into a cylinder or stamping a circular plate into the shape of a cup.
  • This invention relates to abrasive wheels for cigarette lighters, that is to say, wheels which are adapted to frictionally engage a flint to ignite the lighter, as well as to methods of manufacturing these abrasive wheels.
  • machining consists essentially in forming a bearing in the wheel so that it may be mounted on a pivotal axis, cutting one of the faces of the wheel into ratchet teeth, and providing the necessary striations on the periphery of the wheel.
  • This invention is intended to provide abrasive wheels for cigarette lighters which avoid these disadvantages as a consequence of a particularly simple structure, as well as methods of manufacture which make it possible to produce abrasive wheels for cigarette lighters at speeds heretofore unknown, with economies in material, machining, and skilled labor, so that the cost of the abrasive wheel may be reduced to a tenth of its present price,
  • the annular cylindrical plate is discontinuous, the annular shape being produced by bringing the two ends of the plate together. These ends may advantageously be provided with reciprocal interfitting means.
  • the wheel has a continuous annular shape and, on the edge free of ratchet teeth, terminates in a wall perpendicular to the axis of the wheel, which thus becomes cupshaped.
  • the toothed flat plate embodiment may advantageously be manufactured by cutting it out, for example in a transfer press, or in a cyclically operating tool.
  • the plate is initially rectangular in shape, one of the longitudinal edges of the plate having teeth formed by shearing to constitute the ratchet teeth of the wheel.
  • the plate is deformed by rolling it up to produce a closed cylindrical ring by bringing its two ends together.
  • two extreme ends of the rectangular plate may have mating recesses which interfit when the plate is rolled into a cylinder to prevent separation of these two ends.
  • the different plates may be made from a strip of continuous metal which travels through a cyclically operating tool, the different successive plates being detached from each other during the final rolling operation which deforms the plate to impart thereto a cylindrical shape.
  • the plate is preferably knurled after it has been rolled into its cylindrical form.
  • the flat plate is substantially circular in shape withh peripheral teeth, and this plate is stamped to form it into the shape of a cylindrical cup.
  • the flat plate may advantageously be formed by cutting the plate from a suitable metallic sheet, with the teeth remaining, after deformation, at the open side of the cylindrical cup thus formed.
  • Such a cup may be formed in a single stamping operation or preferably by several successive stamping operations, preferably in a transfer press.
  • FIG. 1 is a schematic view showing in perspective the different steps of the process according to the second embodiment of the invention.
  • FIG. 2 is a top plan view of the plate used in the process according to the first embodiment of the invention.
  • FIG. 3 is a side view of an abrasive wheel made from the plate of FIG. 2',
  • FIG. 4 is a diametral sectional view taken through the abrasive wheel of FIG. 3'.
  • FIG. 5 is an end view of the abrasive wheel of FIG. 3, which has been mounted on a sleeve to facilitate its attachment to a shaft.
  • a plate I which is circular in shape, is preferably formed by stamping it from a sheet of suitable hard metal and the periphery of this plate has suitable teeth 2 which are to form the ratchet teeth of the abrasive wheel.
  • the plate I is stamped in a press to form a cylindrical cup, the bottom 3 of which corresponds to the central part of the flat plate, while the annular cylindrical part 4 thereof carries the teeth 2 on its free edge.
  • a central orifice 5 may advantageously be punched in the bottom 3 to permit the ultimate mounting of the abrasive wheel.
  • the wheel made in this manner is then striated in a conventional machine to form the knurled surface 4'.
  • a plate of substantially rectangular shape is formed from a strip of suitable hard metal.
  • One of the longer sides of this plate is preferably provided with teeth 7 formed by shearing for example, while the two extreme ends of the plate 6 are cut out at 8 to form mating recesses which interfit when these two ends are brought together.
  • the plate 6 is then rolled up to impart thereto an annular cylindrical shape as shown on FIG. 3.
  • the parts 9 of the two ends 10 engage in the recesses 8 so that the two ends are thus connected along a V shaped line shown in FIG. 3. For this reason simple friction of the flint against the wheel is incapable of opening up the cylinder formed by the plate, which will therefore always retain its cylindrical shape.
  • the plate may advantageously be cut in a cyclically operating tool, the different plates 6 being connected one behind the other by strips of metal which are eliminated during the rolling of the plate.
  • This member 10 may be provided with a flange 12 extending outwardly in a plane perpendicular to its axis which bears against the surface 13 (shown only in FIG. 4) of the plate which is situated opposite toothed surface 7. After mounting the deformed plate on a suitable tool the knurling 14 is carried out in a conventional manner.
  • the invention results in substantial economy, first because of the saving in the expensive material which is utilized for making the wheels, but especially because the process according to the invention makes it possible to manufacture a large series of wheels on machines operating very rapidly such as transfer presses and cyclically operating tools.
  • the operation of machining the ratchet teeth may moreover, be eliminated and replaced by a simple stamping or shearing step.
  • Abrasive wheel for a cirgarette lighter which comprises a metallic strip provided with integral lateral ratchet teeth on one side thereof and having ends which interfit to hold it in a cylindrical shape, the outer cylindrical surface of said strip being knurled.
  • Wheel as claimed in claim I which comprises a mounting hub force-fitted into said cylindrical plate.
  • Abrasive wheel for a cigarette lighter which comprises a cylinder consisting essentially of an elongated metal strip having integral lateral ratchet teeth on one side thereof and ends having transversely projecting teeth which inter-engage to prevent separation of said ends in a direction which is longitudinal with respect to said strip, the outer cylindrical surface of said strip being knurled.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lighters Containing Fuel (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Making Paper Articles (AREA)
  • Mechanical Operated Clutches (AREA)
US353990A 1972-04-26 1973-04-24 Abrasive wheels for cigarette lighters and method of making same Expired - Lifetime US3893799A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7214817A FR2181492B1 (ja) 1972-04-26 1972-04-26

Publications (1)

Publication Number Publication Date
US3893799A true US3893799A (en) 1975-07-08

Family

ID=9097555

Family Applications (1)

Application Number Title Priority Date Filing Date
US353990A Expired - Lifetime US3893799A (en) 1972-04-26 1973-04-24 Abrasive wheels for cigarette lighters and method of making same

Country Status (13)

Country Link
US (1) US3893799A (ja)
JP (1) JPS545345B2 (ja)
AT (1) AT326390B (ja)
BE (1) BE798630A (ja)
CA (1) CA995479A (ja)
CH (1) CH563816A5 (ja)
DE (1) DE2319924A1 (ja)
ES (2) ES220879Y (ja)
FR (1) FR2181492B1 (ja)
GB (1) GB1424549A (ja)
HK (1) HK55777A (ja)
IT (1) IT982106B (ja)
NL (1) NL7305737A (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5267861U (ja) * 1975-11-15 1977-05-19
JPS5458961A (en) * 1977-10-19 1979-05-12 Ishikawajima Harima Heavy Ind Co Ltd Drying at tableware or container washer
GB2138116B (en) * 1983-03-11 1986-05-08 Le Boudec Guy Laforest Device for producing ignition sparks by contact with a pyrophoric flint
JPS59168000U (ja) * 1983-04-26 1984-11-10 日立造船株式会社 空気圧による没水型揚水装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1951151A (en) * 1933-07-21 1934-03-13 Metal Package Corp Tape spool
US2252676A (en) * 1940-08-05 1941-08-12 Martha P Condon Cigarette lighter
US3129505A (en) * 1961-05-09 1964-04-21 Darwin S Cox Process of manufacturing one piece brake drum shells
US3262289A (en) * 1964-10-28 1966-07-26 Biesenbach Ginu Ignition spark wheels

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1951151A (en) * 1933-07-21 1934-03-13 Metal Package Corp Tape spool
US2252676A (en) * 1940-08-05 1941-08-12 Martha P Condon Cigarette lighter
US3129505A (en) * 1961-05-09 1964-04-21 Darwin S Cox Process of manufacturing one piece brake drum shells
US3262289A (en) * 1964-10-28 1966-07-26 Biesenbach Ginu Ignition spark wheels

Also Published As

Publication number Publication date
ES440588A1 (es) 1977-03-01
HK55777A (en) 1977-11-11
GB1424549A (en) 1976-02-11
FR2181492A1 (ja) 1973-12-07
AU5488173A (en) 1974-10-31
IT982106B (it) 1974-10-21
BE798630A (fr) 1973-10-24
AT326390B (de) 1975-12-10
NL7305737A (ja) 1973-10-30
ATA364373A (de) 1975-02-15
ES220879U (es) 1976-10-01
FR2181492B1 (ja) 1974-12-20
JPS4942466A (ja) 1974-04-22
ES220879Y (es) 1977-03-01
CH563816A5 (ja) 1975-07-15
DE2319924A1 (de) 1973-11-08
JPS545345B2 (ja) 1979-03-15
CA995479A (fr) 1976-08-24

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