US1893516A - Dust guard - Google Patents

Dust guard Download PDF

Info

Publication number
US1893516A
US1893516A US183640A US18364027A US1893516A US 1893516 A US1893516 A US 1893516A US 183640 A US183640 A US 183640A US 18364027 A US18364027 A US 18364027A US 1893516 A US1893516 A US 1893516A
Authority
US
United States
Prior art keywords
guard
wood
axle
layers
fibreboard
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
US183640A
Other languages
English (en)
Inventor
Franklin V Chaney
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.)
DUST GUARDS Inc
Original Assignee
DUST GUARDS Inc
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 DUST GUARDS Inc filed Critical DUST GUARDS Inc
Priority to US183640A priority Critical patent/US1893516A/en
Priority to DEC40604D priority patent/DE521211C/de
Priority to GB29051/27A priority patent/GB283457A/en
Application granted granted Critical
Publication of US1893516A publication Critical patent/US1893516A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F16C33/72—Sealings
    • F16C33/74—Sealings of sliding-contact bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F15/00—Axle-boxes
    • B61F15/20—Details
    • B61F15/22—Sealing means preventing entrance of dust or leakage of oil
    • 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
    • F16C2326/00—Articles relating to transporting
    • F16C2326/10—Railway vehicles
    • 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
    • Y10S277/00—Seal for a joint or juncture
    • Y10S277/935—Seal made of a particular material

Definitions

  • the present invention relates to an improvement in dust guards.
  • the object of the invention is to produce a stiff, strong and tough guard of inexpensive construction and durable quality, and to this end the invention consists in the guard hereinafter described and particularly defined in the claims.
  • Fig. 1 is an elevation of a dust guard
  • Fig. 2 is an edge view of the guard
  • Fig. 3 is a cross-section on the line 2-2, Fig. 1, showing the condition of the fibreboard tongue of the new guard before use
  • Fig. l is a similar sectional view after the guard has been in use.
  • the illustrated embodiment of the invention is described as follows:
  • the guard is made of two outside layers of wood veneer 10.
  • Veneer wood made from birch, beech or maple, is suitable wood for this purpose; they are rather close'gra-ined, strong woods. Any suitable veneer wood may be used.
  • a layer of fibreboard 11 which may conveniently be made of the well- Any fibreboard having toughness, strength and capable of being distorted in form by pressure is suitable fibreboard for use in the manufacture of this dust guard.
  • leather fibreboard is especially suitable because it has considerable tensile strength, being tough, and by reason of the fact that its fibres are animal fibres, it may be distorted by pressure in use to adapt it to the form most suitable for efficiently performing the work intended; that is to say, conferring resiliency and tensile strength to the structure, and at the same time offering a non-abrasive bearing for the axle.
  • the three layers are provided with concentric holes, but the hole in the fibreboard layer is made slightly smaller than the holes in the two layers of wood veneer, as a result of which the inner edge of the fibreboard layer presents an inwardly projecting tongue 12., which extends inward beyond the surfaces of the holes in the outer layers.
  • the movements of the guard with respect to the axle cause the tongue to be flattened or mushroomed outover the inner edges of the two outer layers of the wood veneer, as shownthe wood has cracked with the guard of the 1927.
  • Serial no. 183,640 is provided with concentric holes, but the hole in the fibreboard layer is made slightly smaller than the holes in the two layers of wood veneer, as a result of which the inner edge of the fibreboard layer presents an inwardly projecting tongue 12., which extends inward beyond the surfaces of the holes in the outer layers.
  • the tongue is, therefore, mushroomed outwardly and protects the axle from direct engagement of the wood therewith.
  • the form of the mushroomed tongue 13 is substantially asshown in Fig. 4.
  • the several layers of the dust guard are united by wire fasteners 14.
  • the form of fastener shown is a fastener ordinarily employed in binding books and pamphlets, and the machine by which these fasteners are applied is called a wire stitching machine.
  • the fastener consists of wire staples formed in the machine as used, which are driven through the several layers from one side and clinched on the opposite side.
  • a good form of arrangement of the fasteners is that shown in Fig. 1, in which four are employed alongthe upper edge of the guard, and 12 are employed around the axle opening.
  • Wire fasteners permit small relative movements of the dust guard parts upon each other, thereby contributing to the resiliency of the guard as a whole, that the wood layers contribute stiffness, and that the fibre layer contributes tensile strength, toughness and flexibility.
  • This guard has distinct advantages over prior dust guards wherein three layers of wood are employed, in which two of the layers have the grains at right angles to the grain of the third.
  • the guards are apt to be cracked, and at the sides of the guard just below the center of the axle opening the guard is liable to be broken with an intersecti'ng, overlapping break, as a result of which, when the car on which the guard is N used is shopped, replacement of the guard is necessary; whereas, in the present construction, until the wood breaks or cracks, the wood layers strengthen and stiffen the guard and support it in position. But even after present application, the parts do not separate as they are securely united together by means of the intermediate layer of fibreboard.
  • the guard needs no cement or glue to hold the layers together.
  • the manufacture is accomplished at the stitching machine by associating the several layers together and presenting them to the machine to drive the staples through the several layers whereby they are securely unit-ed together, but in a manner which permits some relative movement of the parts and greater flexibility of the whole.
  • the guard after the guard has been assembled it should be dipped in paraflin or other unguentous material such as a mixture of parafiin and rosin or a sodium silicate bath in order to give the guard a coating of lubricating material which will facilitate movement of the guard in the dust guard recess of the axle box, and which will afford the preliminary lubrication between the guard and the axle until the pressure of the axle on the guard shall mushroom the tongue of fibreboard so as to cause it to spread out over pretty much the whole of the inner surface of the axle hole to thereby afford a wide hearing for the guard on the axle.
  • unguentous material such as a mixture of parafiin and rosin or a sodium silicate bath
  • a dust guard for car axles consisting of two outer layers of wood and an intermediate coextensive layer of tough fibreboard secured together only by fasteners, the two wood layers being of uniform thickness and provided with registering axle holes of the same size and the fibre layer being of uniform thickness and having an axle hole concentric therewith but somewhat smaller to provide an inwardly projecting fibre tongue to engage the axle, the tongue being mushroomed outwardly in use over the inner surfaces of the holes in the wood layers and offering a nonabrasive bearing to the axle, the wood layers stiffening and strengthening the guard and the fibre layer acting to prevent separation of the dust guard parts in case of fracture.
  • a dust guard for car axles consisting of two outer layers of wood and an intermediate coextensive layer of tough fibreboard secured together by wire fasteners only, the two wood layers being of uniform thickness and provided with registering axle holes of the same size and the fibre layer being of uniform thickness and having an axle hole concentric therewith but smaller to provide an inwardly signed my

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
US183640A 1927-04-14 1927-04-14 Dust guard Expired - Lifetime US1893516A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US183640A US1893516A (en) 1927-04-14 1927-04-14 Dust guard
DEC40604D DE521211C (de) 1927-04-14 1927-10-30 Staubscheibe fuer Achslager
GB29051/27A GB283457A (en)) 1927-04-14 1927-10-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US183640A US1893516A (en) 1927-04-14 1927-04-14 Dust guard

Publications (1)

Publication Number Publication Date
US1893516A true US1893516A (en) 1933-01-10

Family

ID=22673688

Family Applications (1)

Application Number Title Priority Date Filing Date
US183640A Expired - Lifetime US1893516A (en) 1927-04-14 1927-04-14 Dust guard

Country Status (3)

Country Link
US (1) US1893516A (en))
DE (1) DE521211C (en))
GB (1) GB283457A (en))

Also Published As

Publication number Publication date
DE521211C (de) 1931-03-19
GB283457A (en)) 1928-01-12

Similar Documents

Publication Publication Date Title
US2004968A (en) Golf club
US1549803A (en) Ball bat
US1893516A (en) Dust guard
US4105159A (en) Composite railroad tie
US676736A (en) Hockey-stick.
US4326669A (en) Laminated wooden railroad crossite having exposed end-grain forming part of the load bearing surface
US1806402A (en) Mop head
US259230A (en) Boot or shoe
US5245A (en) Frederic wm
US1691409A (en) Fruit-basket lid
US542464A (en) Geoege s
US772149A (en) Joint stiffener or clamp.
US2262518A (en) Rubber heel
US1039103A (en) Staple.
US898233A (en) Heel-protector.
US205534A (en) Improvement in harness-saddle trees
US596055A (en) George crouch
US916750A (en) Horseshoe-pad.
US284197A (en) Henby c
US129490A (en) Improvement in shoe-pegs
US1672202A (en) Dust guard and method of making the same
US660446A (en) Fruit box or basket.
US1284916A (en) Heel-plate.
US721016A (en) Method of attaching soles of boots or shoes or securing together layers of material.
US707642A (en) Insole.