US2794037A - Nonspreading lubricant - Google Patents

Nonspreading lubricant Download PDF

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Publication number
US2794037A
US2794037A US413474A US41347454A US2794037A US 2794037 A US2794037 A US 2794037A US 413474 A US413474 A US 413474A US 41347454 A US41347454 A US 41347454A US 2794037 A US2794037 A US 2794037A
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US
United States
Prior art keywords
lubricant
nonspreading
spread
oil
friction
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
US413474A
Inventor
Jr Joseph S Martin
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.)
Hamilton Watch Co
Original Assignee
Hamilton Watch 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 Hamilton Watch Co filed Critical Hamilton Watch Co
Priority to US413474A priority Critical patent/US2794037A/en
Application granted granted Critical
Publication of US2794037A publication Critical patent/US2794037A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
    • G04B31/08—Lubrication
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M3/00—Liquid compositions essentially based on lubricating components other than mineral lubricating oils or fatty oils and their use as lubricants; Use as lubricants of single liquid substances
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/287—Partial esters
    • C10M2207/289—Partial esters containing free hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/06—Instruments or other precision apparatus, e.g. damping fluids

Definitions

  • a spread resistant lubricant comprising alpha-phenyl, gamma-caprylate glycerol, characterized by having a pour point of 40 F., a coefficient of friction of .08, a good resistance to spread and a low evaporation rate.

Description

NUNSPREADING LUBRICANT Joseph S. Martin, .lr., Lancaster, Pa., assignor to Hamilton Watch Company, Lancaster, Pa.
No Drawing. Application March 1, 1954, Serial No. 413,474
1 Claim. ((1260-4105) This invention relates to a new composition of matter to be used as a lubricant for clocks, watches or other delicate instruments.
In the lubrication of fine instruments, such as clocks, watches and meters, one of the main problems is to retain the oil at the bearing, it being a tendency of the oil to spread over the metal and dissipate itself. As it is impossible to enclose these bearings to prevent the spread of the lubricant, an oil which has spread resistant properties is highly desirable.
It is the object of the present invention to provide an oil which is spread resistant and which, with this feature, retains other desirable qualities.
It is a still further object of the present invention to provide a lubricant made from the reaction product of caprylic acid and glycidyl phenyl ether.
It is a still further object of the present invention to provide a lubricant which will have a good viscosity, a pour point at -40 F. or below, which has resistance to spread, a low evaporation rate and a steel against sapphire coefiicient of friction in the neighborhood of .08.
The mono-ester reaction product of caprylic acid and glycidyl phenyl ether possesses the above qualifications. The preparation of this material is as follows:
States Patent 2,794,037 Patented May 28, 1957 "ice Kinematic viscosity F., centistokes--- 30 Pour point, F Minus 40 Refractive index 25 C 1.4935 Specific gravity 25/25 C 1.040 Resistance to spreading Good Evaporation rate Low Coefiicient of friction 0.080
What is claimed is:
A spread resistant lubricant, comprising alpha-phenyl, gamma-caprylate glycerol, characterized by having a pour point of 40 F., a coefficient of friction of .08, a good resistance to spread and a low evaporation rate.
References Cited in the file of this patent UNITED STATES PATENTS 2,191,039 Dickey Feb. 20, 1940 2,250,265 Kapp et a1. July 22, 1941 2,351,025 Marple June 13, 1944 2,534,611 Martin Dec. 19, 1950 2,559,171 Roach July 3, 1951 FOREIGN PATENTS 716,086 Great Britain Sept. 29, 1954
US413474A 1954-03-01 1954-03-01 Nonspreading lubricant Expired - Lifetime US2794037A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US413474A US2794037A (en) 1954-03-01 1954-03-01 Nonspreading lubricant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US413474A US2794037A (en) 1954-03-01 1954-03-01 Nonspreading lubricant

Publications (1)

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US2794037A true US2794037A (en) 1957-05-28

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Family Applications (1)

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US413474A Expired - Lifetime US2794037A (en) 1954-03-01 1954-03-01 Nonspreading lubricant

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3312722A (en) * 1963-03-13 1967-04-04 Lever Brothers Ltd Higher fatty acid esters of ether and thioether glycerols
US3972914A (en) * 1973-03-22 1976-08-03 L'oreal Novel derivatives of glycerol
WO2008052378A2 (en) * 2006-11-02 2008-05-08 Rolex S.A. Timepiece

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2191039A (en) * 1938-12-16 1940-02-20 Eastman Kodak Co Yarn conditioning process and composition therefor
US2250265A (en) * 1938-07-27 1941-07-22 Nat Oil Prod Co Lubricant
US2351025A (en) * 1944-06-13 Preparation of aryl ethers of
US2534611A (en) * 1949-02-12 1950-12-19 Hamilton Watch Co Watch oil
US2559171A (en) * 1946-01-04 1951-07-03 Gen Mills Inc Unsaturated ether esters
GB716086A (en) * 1951-12-21 1954-09-29 Standard Oil Dev Co Improvements in or relating to synthetic lubricants

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2351025A (en) * 1944-06-13 Preparation of aryl ethers of
US2250265A (en) * 1938-07-27 1941-07-22 Nat Oil Prod Co Lubricant
US2191039A (en) * 1938-12-16 1940-02-20 Eastman Kodak Co Yarn conditioning process and composition therefor
US2559171A (en) * 1946-01-04 1951-07-03 Gen Mills Inc Unsaturated ether esters
US2534611A (en) * 1949-02-12 1950-12-19 Hamilton Watch Co Watch oil
GB716086A (en) * 1951-12-21 1954-09-29 Standard Oil Dev Co Improvements in or relating to synthetic lubricants

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3312722A (en) * 1963-03-13 1967-04-04 Lever Brothers Ltd Higher fatty acid esters of ether and thioether glycerols
US3972914A (en) * 1973-03-22 1976-08-03 L'oreal Novel derivatives of glycerol
WO2008052378A2 (en) * 2006-11-02 2008-05-08 Rolex S.A. Timepiece
WO2008052378A3 (en) * 2006-11-02 2008-08-14 Rolex Sa Timepiece

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