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US2864967A - Ignition distributor - Google Patents

Ignition distributor Download PDF

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Publication number
US2864967A
US2864967A US425812A US42581254A US2864967A US 2864967 A US2864967 A US 2864967A US 425812 A US425812 A US 425812A US 42581254 A US42581254 A US 42581254A US 2864967 A US2864967 A US 2864967A
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US
United States
Prior art keywords
shaft
rotor
recess
walls
distributor
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
US425812A
Inventor
David C Redick
James C Norris
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.)
Motors Liquidation Co
Original Assignee
General Motors Corp
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 General Motors Corp filed Critical General Motors Corp
Priority to US425812A priority Critical patent/US2864967A/en
Application granted granted Critical
Publication of US2864967A publication Critical patent/US2864967A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/04—Clamping or clipping connections
    • F16B7/0406—Clamping or clipping connections for rods or tubes being coaxial
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/02—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors
    • F02P7/021—Mechanical distributors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
    • F16B2200/10—Details of socket shapes
    • 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
    • Y10T29/49863—Assembling or joining with prestressing of part
    • Y10T29/4987—Elastic joining of parts
    • 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
    • Y10T29/49945—Assembling or joining by driven force fit

Definitions

  • This invention relates to attaching devices and more particularly to an attachment between a distributor rotor and shaft.
  • a further object of the present invention is to locate a plurality of spaced projections on the inner surface of a recess defined by a thin walled hub portion of a distributor rotor so that the projections when engaging surface portions of a shaft that has a smaller diameter than the diameter of said recess will cause the material of said walls to be stressed and the shape of said recess to be changed when the hub portion of said rotor is applied to the end of said shaft.
  • a still further object of the present invention is to stress the walls of a hub which defines a recess in a distributor rotor when the rotor is applied over the end of a shaft. This object is accomplished by either forming the shaft so that it is out of round or by positioning a member that maintains a plurality of projections in spaced relation to each other so that the walls of the hub will be, stressed and the recess formed thereby will change its shape when the rotor is applied over the end of the shaft.
  • Figure 5 is a cross sectional view of the parts in Figure 4 as assembled with each other.
  • Figure 6 is an exploded view in perspective and partly in section showing another embodiment of the present invention.
  • Figure 7 is a cross sectional view of the parts in Figure 6 as assembled with each other.
  • the numeral 20 designates a distributor rotor, formed of an insulating material, preferably of molded Bakelite, or other similar material, that is adapted to be fitted or applied on the end of a cam shaft 22 of a distributor 24.
  • the rotor 20 is formed to have a hub portion 26 that has relatively thin walls 28 which define a recess or socket 30 that is preferably circular in shape.
  • a lug 32 formed on the body of rotor 20 and located adjacent the base portion of recess 30 when received in a slot 34 in shaft 22 forms a driving connection between the shaft 22 and rotor 20 when the rotor 20 is applied over the end of the shaft 22.
  • the present invention is directed to the attachment between the distributor rotor 20 and a cam shaft 22. It has been found that when rotors are applied to an end of a cam shaft, frequently air is trapped therebetween which makes it difiicult to correctly position the rotor 20 on the shaft 22 so that the lug 32 on the rotor is received in slot 34. Frequently considerable force must be applied on the rotor 20 to accomplish this positioning. This force on occasion has caused the walls of the hub portion to crack, etc. Further it has been found that many of the materials used in rotor construction tend to grow or expand with age. Thus frequently connections between the distributor rotor and shaft which were initially tight became loose and the rotor wobbled so as to upset the timing of the internal combustion engine with which it is associated. It is to the alleviation of these as well as other difficulties that the present invention is directed.
  • the hub portion 26 of distributor 20 is formed with thin walls 28 and a plurality of spaced inwardly facing lugs or projections 36 within a recess 30 as defined by walls 28.
  • Recess 30 is preferably circular in shape when walls 28 are unstressed and has a diameter greater than shaft 22.
  • the lugs 36 formed on walls 28 are sized so that a circle which is defined by the inner extreme surfaces 37 of lugs 36 will have a diameter slightly smaller than the diameter of the shaft 22. These surfaces 37 on lug portions 36 will engage the surface of the shaft when rotor 20 is applied on the end of shaft 22 and cause the thin walls 28 to be stressed and cause the configuration of the circular recess to change as shown in the exaggerated view in Figure 3.
  • the walls 28 by stressing will cause the diameter of the circle as defined by the surfaces 37 of the lugs to increase to permit the rotor 20 to be applied to shaft 22. Further these stressed walls will constantly exert a force between surfaces 37 and shaft 22 so the rotor 20 will be tightly but removably held on the shaft.
  • the dimensions of the shaft 22, recess 30, lugs 36 and the thickness and materials used in walls 28 must be selected so that the thin walls 28 will not crack when stressed and air which would be entrapped in the recess may escape in the areas between the spaced lugs 36 so that the rotor 20 may be readily applied without injury to the end of the shaft 20.
  • FIGs 4 and 5 another embodiment of the present invention is shown wherein an element 38 is positioned between shaft 22 and the walls 28 of recess 30.
  • Element 38 generally comprises an annular portion 40 that has a segment 42 removed therefrom to permit a lug 32 to pass into engagement with slot 34 when the portion 40 is positioned on the end of the shaft 22 as shown in the drawings.
  • the element 38 further has a plurality of spaced projections 44 depending from the annular portion 40 that are adapted to embrace the walls of shaft 22 and stress the 3 walls 28 of rotor hub 26 when the rotor 20 is applied to shaft 22 so that the recess 30 will assume a shape other than circular as shown in Figure 5.
  • the stressing of the walls 28 of rotor hub 26 is accomplished by a plurality of projections 46 that are formed on shaft 22.
  • the shaft 22 is formed so that certain portions thereofare of smaller diameter than the recess 30 in hub 26 and'other portions have a diameter slightly greater than the diameter of the recess so that as the rotor '20 is applied to shaftZZ, the portions of larger diameter as represented by projections 46 in the drawings will engage and stress the walls 28 of recess 30 so that the recess assumes the noncircular shape as shown in Figure 7 of the drawings.
  • the present invention is not directed to the type of distributor or rotor shown but an attachment wherein the walls of any suitably shaped recess r socket are stressed by a plurality of circumferentially located spacers that are positioned between the rotor and the end surfaces of a shaft whereon the rotor is positioned.
  • a coupling adapted to be positioned on the end of a cylindrical rod, comprising; a member having a thin walled portion defining a cylindrical socket of greater diameter than the diameter of said rod, and means disposed between the walls of the socket and the cylindrical surface of the rod for distorting the configuration of the socket to a noncylindrical shape when said member is applied over the end of said rod.
  • an ignition distributor comprising; an ignition distributor rotor comprising a block of insulating material having a thin walled hub portion defining a cylindrical socket, a cylindrical shaft adapted to support said rotor having external dimensions less than the dimensions of said socket, and means disposed within the socket and engaging the cylindrical shaft surface for stressing the thin walled material of said hub for distort- 4 ing the configuration thereof when said rotor is applied to the end' of said shaft.
  • An ignition distributor rotor comprising; a molded block of insulating material having; a thin walled hub portion normally defining a substantially circular recess having a detent therein, a plurality of spaced projections on wall portions of the hub disposed within said recess, said hub being adapted to be applied to a smooth surface cylindrical end of a shaft having a notch in said end so the detent of said hubis received in the notch of said shaft for limiting rotati've movement therebetween and said projections having arcuateinner end portions being adapted to engage smooth surface portions of said shaft for stressing the thin walls of said hub so the shape of said recess is other than circular when said rotor is applied to the end of said shaft.
  • an ignition distributor comprising; an ignition distributor rotor of insulating material having a thin walled hub portion defining a cylindrical recess, a cylindrical shaft adapted to support said rotor having an external diameter less than the diameter of said recess, and an element adapted to be positioned on the end of said shaft and within said recess having a plurality ofspaced projections adapted to embrace the side surfaces of said shaft end and cause the thin walls of said hub to be stressed for distorting the cylindrical configuration of said recess to a noncylindrical configuration when said rotor is applied to the end of said shaft when said element is positioned thereon.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Description

16, 1958 D. c. REDICK ETAL 2,864,967
IGNITION DISTR BUTOR 2 Sheets-Sheet 1 Filed April 27. 1954 INVENTOR ck rls David 0. Redi James C. Nor %4 rfomey Dec. 16, 1958 g, mC ETAL 2,864,967
IGNITION DISTRIBUTOR 2 Sheets-Sheet 2 Filed April 27, 1954 n 940/ I I INVENTOR David C. Redick Y James C. Norris Attorney United States Patent IGNITION DISTRIBUTOR David C. Redick, Anderson, and James C. Norris, Pendleton, Ind., assignors to General Motors Corporation, Detroit, Mich., a corporation of Delaware Application April 27, 1954, Serial No. 425,812
4 Claims. (Cl. 313-449) This invention relates to attaching devices and more particularly to an attachment between a distributor rotor and shaft.
It is an object of the present invention to securely position a distributor rotor on the end of a shaft in a distributor, this object being accomplished by providing relatively thin walls on the hub portion of the rotor which defines a shaft receiving recess so that the insulating material forming the walls will be stressed and the shape of the recess will be changed when the rotor is applied to one end of the shaft.
It is another object of the present invention to associate a means with the end of a shaft and a recess in a thin walled hub portion of a distributor rotor of insulating material so that the material forming the walls of the hub will be stressed and change the shape of the recess when the rotor is applied to an end of the shaft.
It is another object of the present invention to associate a means with the end of a shaft and a recess formed by a thin walled hub portion of a distributor rotor of insulating material so that the material forming the walls of the hub will be stressed and change the shape of said recess when the rotor is applied to an end of the shaft.
A further object of the present invention is to locate a plurality of spaced projections on the inner surface of a recess defined by a thin walled hub portion of a distributor rotor so that the projections when engaging surface portions of a shaft that has a smaller diameter than the diameter of said recess will cause the material of said walls to be stressed and the shape of said recess to be changed when the hub portion of said rotor is applied to the end of said shaft.
A still further object of the present invention is to stress the walls of a hub which defines a recess in a distributor rotor when the rotor is applied over the end of a shaft. This object is accomplished by either forming the shaft so that it is out of round or by positioning a member that maintains a plurality of projections in spaced relation to each other so that the walls of the hub will be, stressed and the recess formed thereby will change its shape when the rotor is applied over the end of the shaft.
Further objects and advantages of the present invention will be apparent from the following description reference being had to the accompanying drawings wherein a preferred embodiment of the present invention is clearly shown.
2,854,967 Patented Dec. 16, 1958 Figure 5 is a cross sectional view of the parts in Figure 4 as assembled with each other.
Figure 6 is an exploded view in perspective and partly in section showing another embodiment of the present invention.
Figure 7 is a cross sectional view of the parts in Figure 6 as assembled with each other.
In the drawings the numeral 20 designates a distributor rotor, formed of an insulating material, preferably of molded Bakelite, or other similar material, that is adapted to be fitted or applied on the end of a cam shaft 22 of a distributor 24. The rotor 20 is formed to have a hub portion 26 that has relatively thin walls 28 which define a recess or socket 30 that is preferably circular in shape. A lug 32 formed on the body of rotor 20 and located adjacent the base portion of recess 30 when received in a slot 34 in shaft 22 forms a driving connection between the shaft 22 and rotor 20 when the rotor 20 is applied over the end of the shaft 22.
The present invention is directed to the attachment between the distributor rotor 20 and a cam shaft 22. It has been found that when rotors are applied to an end of a cam shaft, frequently air is trapped therebetween which makes it difiicult to correctly position the rotor 20 on the shaft 22 so that the lug 32 on the rotor is received in slot 34. Frequently considerable force must be applied on the rotor 20 to accomplish this positioning. This force on occasion has caused the walls of the hub portion to crack, etc. Further it has been found that many of the materials used in rotor construction tend to grow or expand with age. Thus frequently connections between the distributor rotor and shaft which were initially tight became loose and the rotor wobbled so as to upset the timing of the internal combustion engine with which it is associated. It is to the alleviation of these as well as other difficulties that the present invention is directed.
In Figures 2 and 3, the hub portion 26 of distributor 20 is formed with thin walls 28 and a plurality of spaced inwardly facing lugs or projections 36 within a recess 30 as defined by walls 28. Recess 30 is preferably circular in shape when walls 28 are unstressed and has a diameter greater than shaft 22. The lugs 36 formed on walls 28 are sized so that a circle which is defined by the inner extreme surfaces 37 of lugs 36 will have a diameter slightly smaller than the diameter of the shaft 22. These surfaces 37 on lug portions 36 will engage the surface of the shaft when rotor 20 is applied on the end of shaft 22 and cause the thin walls 28 to be stressed and cause the configuration of the circular recess to change as shown in the exaggerated view in Figure 3. The walls 28 by stressing will cause the diameter of the circle as defined by the surfaces 37 of the lugs to increase to permit the rotor 20 to be applied to shaft 22. Further these stressed walls will constantly exert a force between surfaces 37 and shaft 22 so the rotor 20 will be tightly but removably held on the shaft. Manifestly the dimensions of the shaft 22, recess 30, lugs 36 and the thickness and materials used in walls 28 must be selected so that the thin walls 28 will not crack when stressed and air which would be entrapped in the recess may escape in the areas between the spaced lugs 36 so that the rotor 20 may be readily applied without injury to the end of the shaft 20.
In Figures 4 and 5 another embodiment of the present invention is shown wherein an element 38 is positioned between shaft 22 and the walls 28 of recess 30. Element 38 generally comprises an annular portion 40 that has a segment 42 removed therefrom to permit a lug 32 to pass into engagement with slot 34 when the portion 40 is positioned on the end of the shaft 22 as shown in the drawings. The element 38 further has a plurality of spaced projections 44 depending from the annular portion 40 that are adapted to embrace the walls of shaft 22 and stress the 3 walls 28 of rotor hub 26 when the rotor 20 is applied to shaft 22 so that the recess 30 will assume a shape other than circular as shown in Figure 5.
In Figures 6 and 7 the stressing of the walls 28 of rotor hub 26 is accomplished by a plurality of projections 46 that are formed on shaft 22. In this embodiment the shaft 22 is formed so that certain portions thereofare of smaller diameter than the recess 30 in hub 26 and'other portions have a diameter slightly greater than the diameter of the recess so that as the rotor '20 is applied to shaftZZ, the portions of larger diameter as represented by projections 46 in the drawings will engage and stress the walls 28 of recess 30 so that the recess assumes the noncircular shape as shown in Figure 7 of the drawings.
It is manifest the exaggerated views showing the attachment of the distributor rotor on the cam shaft, according to the present invention, may be used in any suitable distributor and rotor therefore. The present invention is not directed to the type of distributor or rotor shown but an attachment wherein the walls of any suitably shaped recess r socket are stressed by a plurality of circumferentially located spacers that are positioned between the rotor and the end surfaces of a shaft whereon the rotor is positioned.
While the embodiment of the present invention as herein disclosed constitutes a preferred form, it is to be understood that other forms might be adopted.
What is claimed is as follows:
1. A coupling adapted to be positioned on the end of a cylindrical rod, comprising; a member having a thin walled portion defining a cylindrical socket of greater diameter than the diameter of said rod, and means disposed between the walls of the socket and the cylindrical surface of the rod for distorting the configuration of the socket to a noncylindrical shape when said member is applied over the end of said rod.
2. In an ignition distributor, the combination comprising; an ignition distributor rotor comprising a block of insulating material having a thin walled hub portion defining a cylindrical socket, a cylindrical shaft adapted to support said rotor having external dimensions less than the dimensions of said socket, and means disposed within the socket and engaging the cylindrical shaft surface for stressing the thin walled material of said hub for distort- 4 ing the configuration thereof when said rotor is applied to the end' of said shaft.
3. An ignition distributor rotor comprising; a molded block of insulating material having; a thin walled hub portion normally defining a substantially circular recess having a detent therein, a plurality of spaced projections on wall portions of the hub disposed within said recess, said hub being adapted to be applied to a smooth surface cylindrical end of a shaft having a notch in said end so the detent of said hubis received in the notch of said shaft for limiting rotati've movement therebetween and said projections having arcuateinner end portions being adapted to engage smooth surface portions of said shaft for stressing the thin walls of said hub so the shape of said recess is other than circular when said rotor is applied to the end of said shaft.
4. In an ignition distributor, the combination comprising; an ignition distributor rotor of insulating material having a thin walled hub portion defining a cylindrical recess, a cylindrical shaft adapted to support said rotor having an external diameter less than the diameter of said recess, and an element adapted to be positioned on the end of said shaft and within said recess having a plurality ofspaced projections adapted to embrace the side surfaces of said shaft end and cause the thin walls of said hub to be stressed for distorting the cylindrical configuration of said recess to a noncylindrical configuration when said rotor is applied to the end of said shaft when said element is positioned thereon.
References Cited in the file of this patent UNITED STATES PATENTS
US425812A 1954-04-27 1954-04-27 Ignition distributor Expired - Lifetime US2864967A (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3032375A (en) * 1959-06-12 1962-05-01 Alladin Plastics Inc Chair comprising removable elements
US3213253A (en) * 1962-12-18 1965-10-19 Oak Electro Netics Corp Deformable molded plastic rotor for a rotary electric switch
US3680897A (en) * 1969-07-07 1972-08-01 Oce Van Der Grinten Nv Force-fitted pin- and tube joint and a frame for an apparatus provided with such a joint
US4003359A (en) * 1974-02-11 1977-01-18 Hays Bill J Flux wheel for breakerless distributor retrofit
FR2393168A1 (en) * 1977-04-14 1978-12-29 Bosch Gmbh Robert SPARE PARTS KIT FOR IGNITION, CONTACTLESS CONTROL, INTERNAL COMBUSTION ENGINES
US4224786A (en) * 1977-09-09 1980-09-30 Howard Langlie Hand tool with readily detachable handle
FR2533266A1 (en) * 1982-09-20 1984-03-23 Gen Motors Corp IGNITION DISTRIBUTOR WITH TEMPORARY LOCKING OF THE ROTOR, FOR INTERNAL COMBUSTION ENGINE
US4895475A (en) * 1988-02-23 1990-01-23 Carter Donald L Assembly of cylinder and shaft with low stress coupling and method of making same
US4919560A (en) * 1989-04-28 1990-04-24 Fiberglass Technologies, Inc. Oil well sucker rod
EP0422372A3 (en) * 1989-10-10 1991-06-12 Robert Bosch Gmbh Ignition distributor rotor for combustion engines
US5298699A (en) * 1993-02-25 1994-03-29 General Motors Corporation Rotor for an ignition distributor
US5429574A (en) * 1991-04-09 1995-07-04 Murakami; Yukiyoshi Shaft member for business machines and the like and its manufacturing method
US5822837A (en) * 1996-06-17 1998-10-20 Fichtel & Sachs Ag Process for producing a frictional engagement
US20070247015A1 (en) * 2006-04-25 2007-10-25 A. O. Smith Corporation Rotor having lobed bore and method of assembling same

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US149014A (en) * 1874-03-24 Improvement in tips for handles of children s carriages
GB191306505A (en) * 1913-03-17 1913-05-29 John Jesse James Improvements in and in the Manufacture of Knobs or Terminals for Curtain and other Rods and Poles.
US1552104A (en) * 1924-06-30 1925-09-01 Henry F Zahner Tablf
US1783893A (en) * 1928-11-23 1930-12-02 Herman A Unke Pipe-end protector
US1939807A (en) * 1931-09-08 1933-12-19 Fibish Ernest Adjustable ignition distributor
US2006536A (en) * 1932-06-01 1935-07-02 Gouverneur G Brown Drill
US2397382A (en) * 1944-06-19 1946-03-26 Justice E Smith Locking device
US2551834A (en) * 1947-06-09 1951-05-08 Presstite Engineering Company Protective plastic cap

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US149014A (en) * 1874-03-24 Improvement in tips for handles of children s carriages
GB191306505A (en) * 1913-03-17 1913-05-29 John Jesse James Improvements in and in the Manufacture of Knobs or Terminals for Curtain and other Rods and Poles.
US1552104A (en) * 1924-06-30 1925-09-01 Henry F Zahner Tablf
US1783893A (en) * 1928-11-23 1930-12-02 Herman A Unke Pipe-end protector
US1939807A (en) * 1931-09-08 1933-12-19 Fibish Ernest Adjustable ignition distributor
US2006536A (en) * 1932-06-01 1935-07-02 Gouverneur G Brown Drill
US2397382A (en) * 1944-06-19 1946-03-26 Justice E Smith Locking device
US2551834A (en) * 1947-06-09 1951-05-08 Presstite Engineering Company Protective plastic cap

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3032375A (en) * 1959-06-12 1962-05-01 Alladin Plastics Inc Chair comprising removable elements
US3213253A (en) * 1962-12-18 1965-10-19 Oak Electro Netics Corp Deformable molded plastic rotor for a rotary electric switch
US3680897A (en) * 1969-07-07 1972-08-01 Oce Van Der Grinten Nv Force-fitted pin- and tube joint and a frame for an apparatus provided with such a joint
US4003359A (en) * 1974-02-11 1977-01-18 Hays Bill J Flux wheel for breakerless distributor retrofit
FR2393168A1 (en) * 1977-04-14 1978-12-29 Bosch Gmbh Robert SPARE PARTS KIT FOR IGNITION, CONTACTLESS CONTROL, INTERNAL COMBUSTION ENGINES
US4224786A (en) * 1977-09-09 1980-09-30 Howard Langlie Hand tool with readily detachable handle
FR2533266A1 (en) * 1982-09-20 1984-03-23 Gen Motors Corp IGNITION DISTRIBUTOR WITH TEMPORARY LOCKING OF THE ROTOR, FOR INTERNAL COMBUSTION ENGINE
US4895475A (en) * 1988-02-23 1990-01-23 Carter Donald L Assembly of cylinder and shaft with low stress coupling and method of making same
US4919560A (en) * 1989-04-28 1990-04-24 Fiberglass Technologies, Inc. Oil well sucker rod
EP0422372A3 (en) * 1989-10-10 1991-06-12 Robert Bosch Gmbh Ignition distributor rotor for combustion engines
US5429574A (en) * 1991-04-09 1995-07-04 Murakami; Yukiyoshi Shaft member for business machines and the like and its manufacturing method
US5298699A (en) * 1993-02-25 1994-03-29 General Motors Corporation Rotor for an ignition distributor
US5822837A (en) * 1996-06-17 1998-10-20 Fichtel & Sachs Ag Process for producing a frictional engagement
US20070247015A1 (en) * 2006-04-25 2007-10-25 A. O. Smith Corporation Rotor having lobed bore and method of assembling same

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