US1492568A - Device for use in quenching annular articles - Google Patents

Device for use in quenching annular articles Download PDF

Info

Publication number
US1492568A
US1492568A US607553A US60755322A US1492568A US 1492568 A US1492568 A US 1492568A US 607553 A US607553 A US 607553A US 60755322 A US60755322 A US 60755322A US 1492568 A US1492568 A US 1492568A
Authority
US
United States
Prior art keywords
quenching
plug
ribs
annular articles
cup
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
US607553A
Inventor
Marcus T Lothrop
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.)
Timken Co
Original Assignee
Timken Roller Bearing 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
Priority claimed from US367897A external-priority patent/US1444258A/en
Application filed by Timken Roller Bearing Co filed Critical Timken Roller Bearing Co
Priority to US607553A priority Critical patent/US1492568A/en
Application granted granted Critical
Publication of US1492568A publication Critical patent/US1492568A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C21D1/673—Quenching devices for die quenching

Definitions

  • My invention relates to devices for sizing and quenching annular articles such as cups and cones for roller bearings and the like. its principal object is to eliminate or minimize the tendency of such annular articles to distort during the operation of quenching in the process of hardening.
  • the invention consists principally in a plug or block of circular cross-section which is provided with longitudinally disposed ribs that are adapted to fit the inner surface of the article to be quenched and which ribs are inclined with relation to planes that pass through the axis of the plug and through said ribs respectively.
  • Fig. 1 is a side view of a quenching plug conforming to my invention with a portion of an apparatus in which it is mounted shown in section;
  • Fig. 2 is an end view of said quenching plug.
  • the common practice has been to make, by any suitable process, a green cup of approximately the size and shape required for the finished article, and to harden the inner or bearing surface thereof by suitable heat treatment and quenching.
  • the heating and quenching operations have been liable to involve more or less distortion and entail the expense of a finishing operation such as grinding.
  • the heat treated cup while still hot, is subjected to the action of a ribbed quenching plug hereinafter described, which it encircles during the operation of quenching so as to shrink against the ribs thereof.
  • the operative portion of the plug A is frusto-conicaland of the proper size and taper for co-operation with the inner or bearing surface of the cup with which it is to be used.
  • This tapered or conical portion comprises a series of longitudinally disposed ribs 1 alternating with grooves or flutes 2, the outer surface of the ribs being concentric with the aXis of the plug.
  • the said ribs are inclined or oblique with relation to the planes that pass through the axis of the plug and through the respective ribs.
  • the hot cup is centered on the quenching plug and the quenching liquid applied thereto.
  • the cup shrinks against the ribs, which, by reason of their multiplicity and disposition, support the cup at such close intervals and for such great extent that the tendency to distort is greatly minimized.
  • a device for use in quenching annular metal bodies consisting of a block having longitudinally disposed ribs adapted to fit the inner surface of the body and inclined with relation to axial planes passing through them respectively.
  • a device for use in quenching cups for conical roller bearings consisting of a tapered block having longitudinally disposed ribs adapted to fit the inner surface of the cup and inclined with relation to axial planes passing through them respectively.

Description

May a, 1924; 1,492,568
M. T. LOTHROP DEVICE FOR USE IN QUENCHING ANNULAR ARTICLES Original Filed March 22, 1920 INVENTOR BY f A A TTORNE y Fatented May 6, 1924;.
n arr MARCUS T. LOTHROP, OF CANTON, OHIO, ASSIGNOR TO THE TIMKEN ROLLER BEARING COMPANY, OF CANTON, OHIO, A CORPORATION OF OHIO.
DEVICE FOR USE IN QUENCHING ANNULAR ARTICLES.
Original application filed. March 22, 1920, Serial No. 367,897. Divided and. this application filed December 18, 1922. Serial No. 607,553.
To all 00720722. it may] concern.
Be it known that I, MARCUS T. Lornnor,
a citizen of the United States, and a resident of the city of Canton, in the county of Stark and State of Ohio, have invented a new and useful Improvement in a Device for Use in Quenching Annular Articles, of which the following is a specification.
My invention relates to devices for sizing and quenching annular articles such as cups and cones for roller bearings and the like. its principal object is to eliminate or minimize the tendency of such annular articles to distort during the operation of quenching in the process of hardening. The invention consists principally in a plug or block of circular cross-section which is provided with longitudinally disposed ribs that are adapted to fit the inner surface of the article to be quenched and which ribs are inclined with relation to planes that pass through the axis of the plug and through said ribs respectively.
In the accompanying drawing which forms part of this specification and wherein like reference numerals refer to like parts wherever they occur,
Fig. 1 is a side view of a quenching plug conforming to my invention with a portion of an apparatus in which it is mounted shown in section;
Fig. 2 is an end view of said quenching plug.
In the manufacture of cups for roller bearings, the common practice has been to make, by any suitable process, a green cup of approximately the size and shape required for the finished article, and to harden the inner or bearing surface thereof by suitable heat treatment and quenching. Heretofore the heating and quenching operations have been liable to involve more or less distortion and entail the expense of a finishing operation such as grinding. According to the 45 present invention, the heat treated cup, while still hot, is subjected to the action of a ribbed quenching plug hereinafter described, which it encircles during the operation of quenching so as to shrink against the ribs thereof.
In the design of quenching plug illustrated in the drawing, the operative portion of the plug A is frusto-conicaland of the proper size and taper for co-operation with the inner or bearing surface of the cup with which it is to be used. This tapered or conical portion comprises a series of longitudinally disposed ribs 1 alternating with grooves or flutes 2, the outer surface of the ribs being concentric with the aXis of the plug. In addition to being disposed longitudinally of the axis of the plug and disposed conically about said axis, the said ribs are inclined or oblique with relation to the planes that pass through the axis of the plug and through the respective ribs.
In practice, the hot cup is centered on the quenching plug and the quenching liquid applied thereto. During this quenching operation, the cup shrinks against the ribs, which, by reason of their multiplicity and disposition, support the cup at such close intervals and for such great extent that the tendency to distort is greatly minimized.
This application is a division of my application filed March 22, 1920, Serial No. 367,897.
What I claim is:
1. A device for use in quenching annular metal bodies consisting of a block having longitudinally disposed ribs adapted to fit the inner surface of the body and inclined with relation to axial planes passing through them respectively.
2. A device for use in quenching cups for conical roller bearings consisting of a tapered block having longitudinally disposed ribs adapted to fit the inner surface of the cup and inclined with relation to axial planes passing through them respectively.
Signed at Canton, Ohio, this 14th day of December, 1922.
MARCUS T. LOTHROP.
US607553A 1920-03-22 1922-12-18 Device for use in quenching annular articles Expired - Lifetime US1492568A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US607553A US1492568A (en) 1920-03-22 1922-12-18 Device for use in quenching annular articles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US367897A US1444258A (en) 1920-03-22 1920-03-22 Apparatus for sizing and quenching cups and cones
US607553A US1492568A (en) 1920-03-22 1922-12-18 Device for use in quenching annular articles

Publications (1)

Publication Number Publication Date
US1492568A true US1492568A (en) 1924-05-06

Family

ID=27003975

Family Applications (1)

Application Number Title Priority Date Filing Date
US607553A Expired - Lifetime US1492568A (en) 1920-03-22 1922-12-18 Device for use in quenching annular articles

Country Status (1)

Country Link
US (1) US1492568A (en)

Similar Documents

Publication Publication Date Title
CN105583588B (en) A kind of processing method for taper roll bearing Internal and external cycle
US1492568A (en) Device for use in quenching annular articles
US1911336A (en) Process of making bearing members and the like
US1428620A (en) Method and apparatus for balancing crank shafts and the like
CN107931986A (en) A kind of processing method of the bearing outer ring with unilateral flange
JP6229226B2 (en) Heat treatment method
DE102005035519A1 (en) Method for forming a sheet metal blank
US2359479A (en) Method of forming tapered wheels
JP2016089183A (en) Heat treatment method for workpiece
DE19633596C2 (en) Process for producing a steel rail wheel hardened on its tread
US1357002A (en) Snyder
US1441892A (en) Cups and cones and the like
US1859623A (en) Cast steel body and method of hardening same
US2671348A (en) Live shaft idler pulley
FR725889A (en) Manufacturing process of blanks for the shaping of ball bearing rings
US3194042A (en) Device for shaping and hardening plane surfaces
US2309631A (en) Apparatus for hardening tapered articles
US2084124A (en) Centering arbor
GB163322A (en) Improvements in or relating to antifriction bearings
US2335125A (en) Lap
US1901035A (en) Method of making cold rolled disks
US1977131A (en) Method of making elastic metal stampings
GB469383A (en) Improvements in electric heating apparatus for use in the surface hardening of articles
US1795492A (en) Method of rolling tapered disks
US1469784A (en) Trolley wheel