US3466244A - Oil-impregnated wicking material - Google Patents

Oil-impregnated wicking material Download PDF

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Publication number
US3466244A
US3466244A US619312A US3466244DA US3466244A US 3466244 A US3466244 A US 3466244A US 619312 A US619312 A US 619312A US 3466244D A US3466244D A US 3466244DA US 3466244 A US3466244 A US 3466244A
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US
United States
Prior art keywords
oil
fibers
wicking material
linters
millimeters
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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
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US619312A
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English (en)
Inventor
Martin L Abel
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.)
Permawick Co
PERMAWICK CO Inc
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Permawick Co
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Publication date
Application filed by Permawick Co filed Critical Permawick Co
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Publication of US3466244A publication Critical patent/US3466244A/en
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    • 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
    • F16N—LUBRICATING
    • F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
    • F16N7/12—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with feed by capillary action, e.g. by wicks

Definitions

  • This invention relates to oil-impregnated wicking materials, and particularly to an oil-impregnated wicking material which can be injected under pressure into bearing reservoirs without separation between the lubricating oil and the wicking material.
  • the wicking material which provides the basis for the present invention is derived from cotton linters.
  • the long hairs on cotton seed are referred to in the art as lint fibers, or staple cotton. It is these fibers which are spun into textiles.
  • cotton seeds also contain short bers which are not suitable for spinning because of their length; these short fibers are known as linters.
  • substantially all of these linters are 5 millimeters in length or less with a very small percentage (in the order of 5% or less) between 5-12 millimeters in length.
  • the fibers which form the oil-absorbing portion of the wicking material of the present invention are formed by comminuting these sheets to obtain, as intact as possible, the fibers from which the sheets were produced.
  • the linters fibers thus restored from the sheets inherently have lengths generally less than 5 millimeters with a very small percentage between 5l0 millimeters. In the preferred embodiment, about 96% of the fibers have lengths of 5 millimeters or less.
  • the comminuted linters fibers have a great affinity for oils, not only for the purpose of holding it, but also for restraining fiow of oil away from the fibers when subjected to extruding or injecting pressures.
  • This tenacious retaining phenomenon of the bulk material is believed to be attributable to the surface adhesion of the oil to the minute linters fibers of the bulk material.
  • the linters fibers will readily absorb 4 or more parts by weight of oil per one part. of bulk material.
  • the extrusion of this wicking material into bearing wells may be carried out by the same extrusion machinery methods now being used to extrude or inject the wicking material of my aforementioned patent, and the methods disclosed in my earlier U.S. Patents 3,226,801, granted Jan. 4, 1.966, and 3,273,- 668, granted Sept. 20, 1966.
  • the oil to be used in the present invention can be selected from a wide variety of lubricating oils.
  • the choice of a particular oil is governed not by any criteria of the wicking material, but by the needs of the particular device to be lubricated.
  • any of the known liquid lubricating oils can be employed in conjunction with the wicking material.
  • One such lubricating oil for bearings comprises -85% solvent refined, 90 V.I. min., petroleum oil having a viscosity of -130 SSU at 100 F. and 2.5 to 3.5% sulfurized sperm oil.
  • antioxidants, anti-corrosion agents, anti-wear agents and other conventional additives may be included in the oil to improve its physical properties. Such additives form no part of the present invention.
  • FIGURE l of the drawing emphasizes this increased effectiveness by a comparison of the oil feed versus the time in use for the Wood fiber mixture of my earlier Patent 2,466,459, the cotton linters of the present invention and the well-known oil impregnated Wool felts (known as F-12 felt) which have to a great extent been replaced by the material of my earlier patent.
  • the aforementioned materials were each tested by placing a sample of the oil-impregnated material to be tested in an oil release rate machine wicking tube situated above a rotating table. The tube was 0.006 inch above this table.
  • a steel rod was inserted in the top of the tube to exert pressure on the oil-impregnated material, and the table rotated for one hour at a speed equivalent to the surface speed of a 1/2 diameter shaft rotating at 175() r.p.m.
  • the remaining sample was thereafter removed and weighed to determine the Weight of oil lost.
  • Each sample contained the same bearing oil (280 oil with a viscosity of 250 SSU at 70 F.) mixed in the same ratio, namely about 85% oil and fibers or wool felt in the case of the felt sample, As is evident from the graph, the oil feed rate of the cotton linters is significantly higher than that of the mixture of fibers of my earlier patent.
  • EXAMPLE I A sheet derived from cotton linters as described in the aforementioned Hercules Powder Company publication was comminuted, and the resultant fibers were separated into eight length categories. The number of fibers within each category were counted under a microscope. (It was assumed that the average length of the fibers in each category fell half way between the upper and lower limits of the individual categories.) This procedure revealed the following distribution:
  • the linters were mixed with a bearing lubricating oil.
  • the resultant wicking material showed excellent results when used to lubricate bearings, including significantly higher oil release rates, improved window erosion characteristics, and the capability of withstanding significantly higher temperatures as compared to the material o? my earlier Patent 2,966,459.
  • An injectable oil-impregnated wicking material comprising a lubricating oil and a loose mass of cotton linters fibers, said fibers and said oil being thoroughly admixed so that the oil is retained by the fibers in a fiuent mixture.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Nonwoven Fabrics (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
US619312A 1967-02-28 1967-02-28 Oil-impregnated wicking material Expired - Lifetime US3466244A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US61931267A 1967-02-28 1967-02-28

Publications (1)

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US3466244A true US3466244A (en) 1969-09-09

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Application Number Title Priority Date Filing Date
US619312A Expired - Lifetime US3466244A (en) 1967-02-28 1967-02-28 Oil-impregnated wicking material

Country Status (4)

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US (1) US3466244A (de)
DE (1) DE1675173B2 (de)
FR (1) FR1555245A (de)
GB (1) GB1220944A (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3727279A (en) * 1970-01-30 1973-04-17 M Abel Method of making a package sleeve bearing
US4008787A (en) * 1972-09-27 1977-02-22 General Electric Company Lubrication system
US4008788A (en) * 1973-10-18 1977-02-22 General Electric Company Lubrication system including lubricant-storing discrete foam particles
US4008928A (en) * 1975-03-25 1977-02-22 Martin Abel Lubricating self-aligning bearing
US4099805A (en) * 1977-06-16 1978-07-11 Westinghouse Electric Corp. Extrudable lubricant wicking material
US4207929A (en) * 1978-09-28 1980-06-17 General Electric Company Method and apparatus for dispensing measured quantities of material
US4207930A (en) * 1978-09-28 1980-06-17 General Electric Company Methods and apparatus for use in dispensing dynamoelectric machine lubricant material
US4207931A (en) * 1978-09-28 1980-06-17 General Electric Company Methods and apparatus for dispensing dynamoelectric machine lubricant material
US20060210349A1 (en) * 2005-02-24 2006-09-21 Permawick Company Injectable wicking composition for marking instruments
US20070227822A1 (en) * 2006-03-23 2007-10-04 Corden Thomas P Lubrication Device
WO2011137196A1 (en) * 2010-04-27 2011-11-03 American Shale Oil, Llc System for providing uniform heating to subterranean formation for recovery of mineral deposits

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1145877A (en) * 1914-06-08 1915-07-13 Alberto Barberis Lubricating-packing and method for making the same.
US1918187A (en) * 1931-05-15 1933-07-11 Skf Svenska Kullagerfab Ab Method of making bearing material
US2379478A (en) * 1940-08-03 1945-07-03 Leonard A Delp Bearing unit and lubricating material therefor
US2966459A (en) * 1955-08-05 1960-12-27 Fluidwick Company Inc Material having oil retaining properties
US3214375A (en) * 1962-05-14 1965-10-26 Permawick Company Lubricated wicking material

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1145877A (en) * 1914-06-08 1915-07-13 Alberto Barberis Lubricating-packing and method for making the same.
US1918187A (en) * 1931-05-15 1933-07-11 Skf Svenska Kullagerfab Ab Method of making bearing material
US2379478A (en) * 1940-08-03 1945-07-03 Leonard A Delp Bearing unit and lubricating material therefor
US2966459A (en) * 1955-08-05 1960-12-27 Fluidwick Company Inc Material having oil retaining properties
US3214375A (en) * 1962-05-14 1965-10-26 Permawick Company Lubricated wicking material

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3727279A (en) * 1970-01-30 1973-04-17 M Abel Method of making a package sleeve bearing
US4008787A (en) * 1972-09-27 1977-02-22 General Electric Company Lubrication system
US4008788A (en) * 1973-10-18 1977-02-22 General Electric Company Lubrication system including lubricant-storing discrete foam particles
US4008928A (en) * 1975-03-25 1977-02-22 Martin Abel Lubricating self-aligning bearing
US4099805A (en) * 1977-06-16 1978-07-11 Westinghouse Electric Corp. Extrudable lubricant wicking material
US4207929A (en) * 1978-09-28 1980-06-17 General Electric Company Method and apparatus for dispensing measured quantities of material
US4207930A (en) * 1978-09-28 1980-06-17 General Electric Company Methods and apparatus for use in dispensing dynamoelectric machine lubricant material
US4207931A (en) * 1978-09-28 1980-06-17 General Electric Company Methods and apparatus for dispensing dynamoelectric machine lubricant material
US20060210349A1 (en) * 2005-02-24 2006-09-21 Permawick Company Injectable wicking composition for marking instruments
US20070227822A1 (en) * 2006-03-23 2007-10-04 Corden Thomas P Lubrication Device
US7775324B2 (en) 2006-03-23 2010-08-17 Thomas Peter Corden Treadmill lubrication device
WO2011137196A1 (en) * 2010-04-27 2011-11-03 American Shale Oil, Llc System for providing uniform heating to subterranean formation for recovery of mineral deposits
CN102906369A (zh) * 2010-04-27 2013-01-30 美国页岩油公司 提供均匀加热至地层以采收矿床的系统
US9464513B2 (en) 2010-04-27 2016-10-11 American Shale Oil, Llc System for providing uniform heating to subterranean formation for recovery of mineral deposits

Also Published As

Publication number Publication date
GB1220944A (en) 1971-01-27
DE1675173A1 (de) 1970-12-10
FR1555245A (de) 1969-01-24
DE1675173B2 (de) 1977-05-18

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