US1250601A - Valve. - Google Patents

Valve. Download PDF

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Publication number
US1250601A
US1250601A US84780914A US1914847809A US1250601A US 1250601 A US1250601 A US 1250601A US 84780914 A US84780914 A US 84780914A US 1914847809 A US1914847809 A US 1914847809A US 1250601 A US1250601 A US 1250601A
Authority
US
United States
Prior art keywords
valve
head
valve stem
stem
milwaukee
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
US84780914A
Inventor
August Littmann
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.)
American Metal Products Co
Original Assignee
American Metal Products 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 American Metal Products Co filed Critical American Metal Products Co
Priority to US84780914A priority Critical patent/US1250601A/en
Application granted granted Critical
Publication of US1250601A publication Critical patent/US1250601A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/02—Selecting particular materials for valve-members or valve-seats; Valve-members or valve-seats composed of two or more 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
    • Y10S164/00—Metal founding
    • Y10S164/13—Valve
    • 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
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49298—Poppet or I.C. engine valve or valve seat making
    • Y10T29/49314—Poppet or I.C. engine valve or valve seat making with assembly or composite article making

Definitions

  • the invention relates to valves or similar machineparts composed of dissimilar metals.
  • the invention designs more particularly to provide a valve stem or other machine part in which the rod is of ferrous metal, as steel, and the head is of a non-ferrous metal, as a brass or bronze composition for use more particularly in internal combustion engines.
  • Figure 1 is a vertical sectional view showing the die and the valve stem.
  • Fig, 2 is a detail view of the valve stem, showing a modified form of valve rod.
  • the valve stem consists of a valve rod 10 of ferrous metal such as steel, to which is attached a head 11 of non-ferrous metal preferably of brass or bronze composition.
  • valves have been made by securing the brass or bronze head on to the steel rod by mechanical means such as screw joints, but the present invention is designed to produce a valve in which the valve head is in the condition of having been cast onto the valve stem and in which the metals used in the valve stem and head are of substantially the same coeflicient of expansion.
  • This non-ferrous or brassor bronze composition possesses the following qualities: Its coeflicient of expansion is substantially the same as the coefficient of expansion 'of the ferrous metal, thus preventing any tendency of the dissimilar metals from working loose. 7
  • the invention thusexemplifies a valve stem or other machine part consisting of two dissimilar metals attached together by casting one onto the other, each ofsaid metals having substantially the same coefficient of expansion.
  • a valve for internal combustion engines consisting of a valve stem of wrought metal and a valve head of brass composition in the condition of having been cast onto said stem, the material of the stem and head having substantially the same coeflicient of expans1on.

Description

A. LITTMANN.
v VALVE. I APPLICATION FILED JUNEZQI 1914.
1,250,601 Patented Dec. 18, 1917.
lNVE/VTUP UNITED STATES PATENT OFFICE.
AUGUST LITTMANN, OF MILWAUKEE, WISCONSIN, ASSIGNOR TO AMERICAN METAL PRODUCTS COMPANY, OF MILWAUKEE, WISCONSIN, A CORPORATION OF WISCONSIN.
VALVE.
specification of Letters Patent.
Patented Dec. 18, 191?.
Application filed June 29, 1914. Serial No. 847,809.
- Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented new and useful Improvements in Valves, of which the following is a description, reference being had to the accompanying drawings,
which are a part of this specification.
The invention relates to valves or similar machineparts composed of dissimilar metals.
The invention designs more particularly to provide a valve stem or other machine part in which the rod is of ferrous metal, as steel, and the head is of a non-ferrous metal, as a brass or bronze composition for use more particularly in internal combustion engines.
In the drawings, Figure 1 is a vertical sectional view showing the die and the valve stem. Fig, 2 is a detail view of the valve stem, showing a modified form of valve rod.
The valve stem consists of a valve rod 10 of ferrous metal such as steel, to which is attached a head 11 of non-ferrous metal preferably of brass or bronze composition.
Formerly valves have been made by securing the brass or bronze head on to the steel rod by mechanical means such as screw joints, but the present invention is designed to produce a valve in which the valve head is in the condition of having been cast onto the valve stem and in which the metals used in the valve stem and head are of substantially the same coeflicient of expansion.
18 or be split at 19 for giving a better gripping surface to the metal.
This non-ferrous or brassor bronze composition possesses the following qualities: Its coeflicient of expansion is substantially the same as the coefficient of expansion 'of the ferrous metal, thus preventing any tendency of the dissimilar metals from working loose. 7
The invention thusexemplifies a valve stem or other machine part consisting of two dissimilar metals attached together by casting one onto the other, each ofsaid metals having substantially the same coefficient of expansion.
'What I claim is:
A valve for internal combustion engines consisting of a valve stem of wrought metal and a valve head of brass composition in the condition of having been cast onto said stem, the material of the stem and head having substantially the same coeflicient of expans1on.
In testimony whereof, Iaflix my signature, in presence of two witnesses. A
AUGUST LITTMANN.
, Witnesses:
KATHERINE Hour, PETER WEBER.
US84780914A 1914-06-29 1914-06-29 Valve. Expired - Lifetime US1250601A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US84780914A US1250601A (en) 1914-06-29 1914-06-29 Valve.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US84780914A US1250601A (en) 1914-06-29 1914-06-29 Valve.

Publications (1)

Publication Number Publication Date
US1250601A true US1250601A (en) 1917-12-18

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ID=3318327

Family Applications (1)

Application Number Title Priority Date Filing Date
US84780914A Expired - Lifetime US1250601A (en) 1914-06-29 1914-06-29 Valve.

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2471937A (en) * 1944-01-24 1949-05-31 Thompson Prod Inc Method of making hollow poppet valves
US2624107A (en) * 1949-08-16 1953-01-06 Avco Mfg Corp Fixture assembly
US3182362A (en) * 1961-12-12 1965-05-11 Berg Airlectro Products Co Method of forming a member and shaft assembly
US3319698A (en) * 1964-06-03 1967-05-16 Charles I Starnes Means and methods for making sinkers for fishing lines
US3583672A (en) * 1968-12-10 1971-06-08 Federal Mogul Corp Composite high-temperature valve and method of making the same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2471937A (en) * 1944-01-24 1949-05-31 Thompson Prod Inc Method of making hollow poppet valves
US2624107A (en) * 1949-08-16 1953-01-06 Avco Mfg Corp Fixture assembly
US3182362A (en) * 1961-12-12 1965-05-11 Berg Airlectro Products Co Method of forming a member and shaft assembly
US3319698A (en) * 1964-06-03 1967-05-16 Charles I Starnes Means and methods for making sinkers for fishing lines
US3583672A (en) * 1968-12-10 1971-06-08 Federal Mogul Corp Composite high-temperature valve and method of making the same

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