US1748037A - Bearing - Google Patents

Bearing Download PDF

Info

Publication number
US1748037A
US1748037A US686668A US68666824A US1748037A US 1748037 A US1748037 A US 1748037A US 686668 A US686668 A US 686668A US 68666824 A US68666824 A US 68666824A US 1748037 A US1748037 A US 1748037A
Authority
US
United States
Prior art keywords
bearing
lead
pressure
metal
provision
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
US686668A
Inventor
Edgar J Leach
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.)
ACKERMITE Co
Original Assignee
ACKERMITE 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 ACKERMITE Co filed Critical ACKERMITE Co
Priority to US686668A priority Critical patent/US1748037A/en
Application granted granted Critical
Publication of US1748037A publication Critical patent/US1748037A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/24—Brasses; Bushes; Linings with different areas of the sliding surface consisting of different materials
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S384/00—Bearings
    • Y10S384/90—Cooling or heating
    • Y10S384/912—Metallic
    • 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
    • Y10T29/47—Burnishing
    • 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
    • Y10T29/49636—Process for making bearing or component thereof
    • Y10T29/49703—Sealing
    • 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
    • Y10T29/49636—Process for making bearing or component thereof
    • Y10T29/49709—Specific metallic composition
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/1216—Continuous interengaged phases of plural metals, or oriented fiber containing

Definitions

  • the invention relates to bearings and has as objects the provision of a bearing that shall be compacted during manufacture to a condition to bear the greatest stress of its intended service without deformation, and with reduced tendency to wear: the provision ofa bearing accurate tothe desired size; the provision of a forged bearing with a surface free from the oxides which result from the heating to which bearing metal has heretofore been subjected to make it possible-to forge it; the provision of a bearing of self lubricating metal leaving a surface with an excess of the lubricating element; the provision of a bearing having a large percentageof surface contact.
  • the material from which it is referred to make bearings is that described in an ap-' plication for patent filed by Albert H. Ackerman, on November 11th, 1922, Serial No. 600,408 comprising an alloy of copper and lead without-the presence of any substantial quantity of other substances. It is intended by the word alloy to indicate such a union of the metals involved that the resulting substance may be repeatedly melted and solidified without segregation of the united metals and providing a material having physical characteristics differing from either of the combined metals. For instance the alloy of the copending application above referred to has a melting point of substantially 1700 F. as compared with the 1950 F. of copper and 589 F. of lead. This alloy shows under the miscroscope a reticulation of copper having the minute pockets filled with lead, substantially no other materials being present.
  • the material referred to may be melted and recast repeatedly without segregation of its constituent metals, and hearings have heretofore been made therefrom by melti g the pig metal, casting the bearing in a mold of the desired form and finally machining the casting to the exact dimensions required.
  • metal of this general nature may be made to flow under pressure, at atmospheric temperature, so as to completely fill a-die shaped accurately to the form and dimensions desired in the finished hearing.
  • a die is provided such that the material treated will be enclosed on all sides when being pressed and pressure is applied to the material through the agency of a plunger which completely closes the plunger opening of the die.
  • the amount of the forming pressure is made greater than the greatest pressure which the bearing is to be called upon to supportin'the service expected.
  • the structure of the metal above referred to is shown by the miscroscope to be that of a sponge or reticulated'mass of copper saturated with lead.
  • the lead will flow more readily than the copper and the finished bearing will therefore, present a surface largely of a thin film of lead.
  • the pressure has the result of compacting the material of the hearing so that it will not be deformed by the working blowsupon the shaft or other home member durin service.
  • the process provided by the invention makes possible the production of finished hearings in larger quantities in a given time than by a casting and machining process.
  • a bearing comprising an integral bod of a matrix of cop er having lead embe ded therein, and a t in, smooth wear resistin inner surface of lead, said body 'compacte in a cold state under a pressure in excess of the expected pressure of service, said inner surface of lead integral with said'embedded lead produced and polished by said ressure.

Description

Patented Feb. 18, 1930 UNITED STATES PATENT OFFICE OF JANESVILLE, WISCONSIN, A CORPQRATION OF DELAWARE BEARING 80 Drawing.
The invention relates to bearings and has as objects the provision of a bearing that shall be compacted during manufacture to a condition to bear the greatest stress of its intended service without deformation, and with reduced tendency to wear: the provision ofa bearing accurate tothe desired size; the provision of a forged bearing with a surface free from the oxides which result from the heating to which bearing metal has heretofore been subjected to make it possible-to forge it; the provision of a bearing of self lubricating metal leaving a surface with an excess of the lubricating element; the provision of a bearing having a large percentageof surface contact.
The material from which it is referred to make bearings is that described in an ap-' plication for patent filed by Albert H. Ackerman, on November 11th, 1922, Serial No. 600,408 comprising an alloy of copper and lead without-the presence of any substantial quantity of other substances. It is intended by the word alloy to indicate such a union of the metals involved that the resulting substance may be repeatedly melted and solidified without segregation of the united metals and providing a material having physical characteristics differing from either of the combined metals. For instance the alloy of the copending application above referred to has a melting point of substantially 1700 F. as compared with the 1950 F. of copper and 589 F. of lead. This alloy shows under the miscroscope a reticulation of copper having the minute pockets filled with lead, substantially no other materials being present.
The material referred to may be melted and recast repeatedly without segregation of its constituent metals, and hearings have heretofore been made therefrom by melti g the pig metal, casting the bearing in a mold of the desired form and finally machining the casting to the exact dimensions required.
I have discovered that metal of this general nature may be made to flow under pressure, at atmospheric temperature, so as to completely fill a-die shaped accurately to the form and dimensions desired in the finished hearing. To produce the bearing provided by Application filed January 16, 1834. Serial No. 886,688.
the inventiona die is provided such that the material treated will be enclosed on all sides when being pressed and pressure is applied to the material through the agency of a plunger which completely closes the plunger opening of the die. The amount of the forming pressure is made greater than the greatest pressure which the bearing is to be called upon to supportin'the service expected.
The structure of the metal above referred to, is shown by the miscroscope to be that of a sponge or reticulated'mass of copper saturated with lead. When metal of the nature referred to is used and the pressure is applied in the'formation of the bearing, the lead will flow more readily than the copper and the finished bearing will therefore, present a surface largely of a thin film of lead.
The minute pro'ections which are present upon all machine or cast surfaces are flattened b the ressure of the die surface which is highly po ished during manufacture, and as a. result the bearing provided by the invention will present a much larger percentage of surface contact than bearing of the prior art.
The pressure has the result of compacting the material of the hearing so that it will not be deformed by the working blowsupon the shaft or other home member durin service.
The process provided by the invention makes possible the production of finished hearings in larger quantities in a given time than by a casting and machining process. I
The process is ap licable to a variet of bearing metals of t 1e nature referre to.
Reference to this particular substance is not intended as being a limitation.
I claim as my invention:
A bearing comprising an integral bod of a matrix of cop er having lead embe ded therein, and a t in, smooth wear resistin inner surface of lead, said body 'compacte in a cold state under a pressure in excess of the expected pressure of service, said inner surface of lead integral with said'embedded lead produced and polished by said ressure.
, EDGAR J. L ACH.
US686668A 1924-01-16 1924-01-16 Bearing Expired - Lifetime US1748037A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US686668A US1748037A (en) 1924-01-16 1924-01-16 Bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US686668A US1748037A (en) 1924-01-16 1924-01-16 Bearing

Publications (1)

Publication Number Publication Date
US1748037A true US1748037A (en) 1930-02-18

Family

ID=24757241

Family Applications (1)

Application Number Title Priority Date Filing Date
US686668A Expired - Lifetime US1748037A (en) 1924-01-16 1924-01-16 Bearing

Country Status (1)

Country Link
US (1) US1748037A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2749604A (en) * 1952-04-22 1956-06-12 Okonite Co Production of metallic bodies
US3245512A (en) * 1963-03-22 1966-04-12 Olivetti Underwood Corp Carriage rails and method and apparatus of manufacture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2749604A (en) * 1952-04-22 1956-06-12 Okonite Co Production of metallic bodies
US3245512A (en) * 1963-03-22 1966-04-12 Olivetti Underwood Corp Carriage rails and method and apparatus of manufacture

Similar Documents

Publication Publication Date Title
US2251410A (en) Composite metal structure and method of making same
US2198254A (en) Method of making composite metal structures
US2241095A (en) Method of making porous metal structures
US2299192A (en) Method of making sintered articles
US2372202A (en) Bearing
US2219423A (en) Method of forming porous metal articles
US2810478A (en) Extrusion of hollow bodies
US2669491A (en) Self-aligning powdered metal bearing
US2625452A (en) Porous bearing with lubricant reservoir therein
US1748037A (en) Bearing
US1831325A (en) Lined bearing member and method of forming same
US1834746A (en) Bearing
US2531910A (en) Aluminum thallium bearing
US2331584A (en) Method of making composite articles
US1956467A (en) Bearing manufacture
US2198702A (en) Method of making molded porous metal articles
US2737456A (en) Process of making powdered metal articles without briquetting
US2540242A (en) Apparatus for casting metal strips
US3553806A (en) Bearing and method of making same
US1547836A (en) Composite metal
US2260247A (en) Method of making bearings
US2284670A (en) Bearing and process of forming the same
US2536689A (en) Method of making small metal bodies
US2377681A (en) Method of making bearings
US1944609A (en) Bearing manufacture