US2182238A - Method of making brake drums - Google Patents

Method of making brake drums Download PDF

Info

Publication number
US2182238A
US2182238A US179259A US17925937A US2182238A US 2182238 A US2182238 A US 2182238A US 179259 A US179259 A US 179259A US 17925937 A US17925937 A US 17925937A US 2182238 A US2182238 A US 2182238A
Authority
US
United States
Prior art keywords
fins
copper
rim
drum
brake drums
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
US179259A
Inventor
Rasmussen Olaf
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
Motors Liquidation 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 Motors Liquidation Co filed Critical Motors Liquidation Co
Priority to US179259A priority Critical patent/US2182238A/en
Application granted granted Critical
Publication of US2182238A publication Critical patent/US2182238A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/26—Making other particular articles wheels or the like
    • B21D53/34—Making other particular articles wheels or the like brake drums
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/10—Drums for externally- or internally-engaging brakes
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/1304—Structure
    • F16D2065/1332—Structure external ribs, e.g. for cooling or reinforcement
    • 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
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49377—Tube with heat transfer means
    • Y10T29/49378—Finned tube
    • 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
    • Y10T29/49881—Assembling or joining of separate helix [e.g., screw thread]

Definitions

  • This invention relates to brakes and more particularly to an improved drum with which brake shoes are to be engaged to retard and stop the rotation of said drum.
  • An object of the invention is the production of a brake drum which shall cool rapidly and which shall be subject to but little, if any, distortion when subjected to the pressure of the shoes.
  • the invention also contemplates a novel process by which a drum having the above characteristics may be manufactured.
  • Figure 1 is a view partly in elevation and partly broken away and in section.
  • Figure 2 is a view in elevation.
  • Figures 3 and 4 are sectional views showing steps in the process of manufacture.
  • Figure 5 is a sectional view of a modified form.
  • the drum comprises a closure wall I in the form'of a disc having a central opening 9 for assembly upon a vehicle wheel. Smaller openings I l are intended to receive fastening means.
  • Wall 1 may be continued to form a. short axial annulus l3 terminating in a radial flange IS.
  • a strip of steel I1 is bent into circular outline to form a rim and is assembled within the annulus I3, the major part of the rim projecting from the annulus and adapted to constitute a brake shoe engaging drum.
  • the meeting ends IQ of the strip of steel are welded together as indicated on the drawing by numeral 2
  • a continuous length of steel 23 rectangular in section and shaped as shown in the drawing is wound on edge and fitted over and around, the rim to form a fin structure.
  • This fin structure serves to strengthen the shoe engaging ring ll and a ds in the radiation of heat resulting from the frictional engagement of the shoes with the drum.
  • an iron wire 25 is wound about the rim l'l between the fins 23, this
  • copper in any suitable form is introduced between the fins.
  • This copper may take the form of a suitable length of wire surrounding the iron wire 25. It may be applied with a brush in the form a copper paste. Other forms obviously may be used.
  • the parts are brazed together in a non-oxidizing or reducing atmosphere, the copper flowing to braze 5 the cover I to the annulus I1 and also to secure the fin structure to the steel annulus.
  • Figure 4 shows the parts thus brazed together, the copper being represented by nu-' meral '21.
  • Figure 5 shows a slight modified form wherein the fins are formed with punched-out tangs 29, these tangs serving the same purpose as the iron wire of Figure 3 and acting to space the fins.
  • the copper is applied as before and the parts are brazed together as shown by the figure.
  • the method of forming a brake drum comprising shaping a web with a short axial annulus, assembling an integral circular rim within and projecting from said annulus, assembling a helix of steel upon said rim to form fins, winding an iron wire spirally between said fins, inserting copper. between said fins and subjecting the assembly to heat to braze said parts together.
  • the method of forming a brake drum comprising forming' a disc, assembling therewith and extending axially therefrom a steel rim, surrounding 'said rim with a spirally wound steel fin structure, inserting a spacing wire of iron between said fins, winding a soft copper wire spirally between the fins of said structure, and thereafter heating said assembly to melt the wire and braze said parts together.

Description

Ea-3Q 5, 1939. s ss 2,182,238
METHOD OF MAKING BRAKE DRUMS Filed Dec. 11, 1937 Ufa fiasmzzsserz B9 I 5 wire serving to space the fin's.
Patented Dec. 5, 1939 UNITED STATES METHOD OF MAKING BRAKE DRUMS Olaf Rasmussen, Dayton, Ohio, assignor to General Motors Corporation, Detroit, Mich., a corporation of Delaware Application December 11, 1937, Serial No. 179,259
3 Claims.
This invention relates to brakes and more particularly to an improved drum with which brake shoes are to be engaged to retard and stop the rotation of said drum.
An object of the invention is the production of a brake drum which shall cool rapidly and which shall be subject to but little, if any, distortion when subjected to the pressure of the shoes. The invention also contemplates a novel process by which a drum having the above characteristics may be manufactured.
Other objects include efficiencyin operation and economy in manufacture.
The invention is illustrated by the accompanying drawing in which Figure 1 is a view partly in elevation and partly broken away and in section.
Figure 2 is a view in elevation.
Figures 3 and 4 are sectional views showing steps in the process of manufacture.
Figure 5 is a sectional view of a modified form.
The drum comprises a closure wall I in the form'of a disc having a central opening 9 for assembly upon a vehicle wheel. Smaller openings I l are intended to receive fastening means. Wall 1 may be continued to form a. short axial annulus l3 terminating in a radial flange IS.
A strip of steel I1 is bent into circular outline to form a rim and is assembled within the annulus I3, the major part of the rim projecting from the annulus and adapted to constitute a brake shoe engaging drum. The meeting ends IQ of the strip of steel are welded together as indicated on the drawing by numeral 2|.
A continuous length of steel 23 rectangular in section and shaped as shown in the drawing is wound on edge and fitted over and around, the rim to form a fin structure. This fin structure serves to strengthen the shoe engaging ring ll and a ds in the radiation of heat resulting from the frictional engagement of the shoes with the drum.
In one form of the invention an iron wire 25 is wound about the rim l'l between the fins 23, this For the purpose of brazing the parts together, copper in any suitable form is introduced between the fins. This copper may take the form of a suitable length of wire surrounding the iron wire 25. It may be applied with a brush in the form a copper paste. Other forms obviously may be used. Subsequent to the application of the copper the parts are brazed together in a non-oxidizing or reducing atmosphere, the copper flowing to braze 5 the cover I to the annulus I1 and also to secure the fin structure to the steel annulus. On the drawing, Figure 4 shows the parts thus brazed together, the copper being represented by nu-' meral '21.
Figure 5 shows a slight modified form wherein the fins are formed with punched-out tangs 29, these tangs serving the same purpose as the iron wire of Figure 3 and acting to space the fins. In this form the copper is applied as before and the parts are brazed together as shown by the figure.
I claim:
1. The method of forming a brake drum comprising shaping a web with a short axial annulus, assembling an integral circular rim within and projecting from said annulus, assembling a helix of steel upon said rim to form fins, winding an iron wire spirally between said fins, inserting copper. between said fins and subjecting the assembly to heat to braze said parts together.
2. The method of forming a brake drum comprising forming a web with a short axial annulus,
assembling a strip of steel in circular outline between the coils of said fin structure an iron wire, inserting a brazing material between said fins and heating said assembly in a non-oxidizing atmosphere to melt said.copper and braze said web, rim and fin structure together.
'3. The method of forming a brake drum comprising forming' a disc, assembling therewith and extending axially therefrom a steel rim, surrounding 'said rim with a spirally wound steel fin structure, inserting a spacing wire of iron between said fins, winding a soft copper wire spirally between the fins of said structure, and thereafter heating said assembly to melt the wire and braze said parts together.
OLAF RASMUSSEN.
US179259A 1937-12-11 1937-12-11 Method of making brake drums Expired - Lifetime US2182238A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US179259A US2182238A (en) 1937-12-11 1937-12-11 Method of making brake drums

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US179259A US2182238A (en) 1937-12-11 1937-12-11 Method of making brake drums

Publications (1)

Publication Number Publication Date
US2182238A true US2182238A (en) 1939-12-05

Family

ID=22655842

Family Applications (1)

Application Number Title Priority Date Filing Date
US179259A Expired - Lifetime US2182238A (en) 1937-12-11 1937-12-11 Method of making brake drums

Country Status (1)

Country Link
US (1) US2182238A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2603316A (en) * 1952-07-15 Brake rotor
US2626656A (en) * 1947-04-16 1953-01-27 De Witt H Wyatt Gas burner and internal baffle for gas distribution
US2749607A (en) * 1950-11-15 1956-06-12 Copperweld Steel Co Method of producing composite curved metallic shapes
US2765526A (en) * 1953-04-01 1956-10-09 Copperweld Steel Co Method of making a composite cylinder
US2844229A (en) * 1955-03-31 1958-07-22 Marshall G Whitfield Wire-wound brake drum or disc
US2896749A (en) * 1953-11-23 1959-07-28 Gaylord Prod Inc Cooling means for brake drums
US2897925A (en) * 1953-02-13 1959-08-04 Oscar W Strohm Reinforced cast brake drum and method of conditioning used brake drums
US3004328A (en) * 1956-02-29 1961-10-17 Foster Wheeler Corp Fin and tube assembly and method of bonding same
US3006065A (en) * 1959-01-30 1961-10-31 Ralph O Watson Method of repairing worn surfaces in shafts
US3006064A (en) * 1958-08-22 1961-10-31 Ralph O Watson Method for repairing worn surfaces in shafts
US3583533A (en) * 1969-06-30 1971-06-08 Robert H Jones Jr Helically finned brake drum
US4960170A (en) * 1989-01-26 1990-10-02 Carter James I Finned tube and method of making the same
US20050217950A1 (en) * 2004-03-11 2005-10-06 Benmaxx, Llc Lightweight reinforced brake drum and method for making same
US20140262639A1 (en) * 2013-03-14 2014-09-18 Eaton Corporation Drum and constricting drum assembly

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2603316A (en) * 1952-07-15 Brake rotor
US2626656A (en) * 1947-04-16 1953-01-27 De Witt H Wyatt Gas burner and internal baffle for gas distribution
US2749607A (en) * 1950-11-15 1956-06-12 Copperweld Steel Co Method of producing composite curved metallic shapes
US2897925A (en) * 1953-02-13 1959-08-04 Oscar W Strohm Reinforced cast brake drum and method of conditioning used brake drums
US2765526A (en) * 1953-04-01 1956-10-09 Copperweld Steel Co Method of making a composite cylinder
US2896749A (en) * 1953-11-23 1959-07-28 Gaylord Prod Inc Cooling means for brake drums
US2844229A (en) * 1955-03-31 1958-07-22 Marshall G Whitfield Wire-wound brake drum or disc
US3004328A (en) * 1956-02-29 1961-10-17 Foster Wheeler Corp Fin and tube assembly and method of bonding same
US3006064A (en) * 1958-08-22 1961-10-31 Ralph O Watson Method for repairing worn surfaces in shafts
US3006065A (en) * 1959-01-30 1961-10-31 Ralph O Watson Method of repairing worn surfaces in shafts
US3583533A (en) * 1969-06-30 1971-06-08 Robert H Jones Jr Helically finned brake drum
US4960170A (en) * 1989-01-26 1990-10-02 Carter James I Finned tube and method of making the same
US20050217950A1 (en) * 2004-03-11 2005-10-06 Benmaxx, Llc Lightweight reinforced brake drum and method for making same
US20140262639A1 (en) * 2013-03-14 2014-09-18 Eaton Corporation Drum and constricting drum assembly
US9057412B2 (en) * 2013-03-14 2015-06-16 Eaton Corporation Drum and constricting drum assembly

Similar Documents

Publication Publication Date Title
US2182238A (en) Method of making brake drums
US3005259A (en) Method of making brake drums
US2795715A (en) Rotor construction for electrical machines
US2071583A (en) Method of making bellows
US4532786A (en) Method for manufacturing a vehicle wheel
US3130355A (en) Electromagnet
US1934780A (en) Method of riveting wood and metal elements
US2506823A (en) Copper-cooled brake drum
US1716833A (en) Method of casting
US2208525A (en) Brake ring with cooling means
US2095719A (en) Brake drum
US2129199A (en) Brake drum
US2080895A (en) Method of making brake drum and drum seal
US2087907A (en) Brake drum and method of making same
US3090114A (en) Method of making a brake drum
US2162072A (en) Composite brake drum
US1995697A (en) Composite brake drum and method of making the same
US2088191A (en) Composite brake drum
US2598191A (en) Method of making fin elements
US1628804A (en) Manufacture of brake drums
US3216105A (en) Method of manufacturing brake drums
US2008173A (en) Brake drum
US2127597A (en) Method of producing brake drums
US2316029A (en) Method of making brake drums
US1787780A (en) Brake shoe