US2406067A - Air-cooled brake shoe - Google Patents
Air-cooled brake shoe Download PDFInfo
- Publication number
- US2406067A US2406067A US574117A US57411745A US2406067A US 2406067 A US2406067 A US 2406067A US 574117 A US574117 A US 574117A US 57411745 A US57411745 A US 57411745A US 2406067 A US2406067 A US 2406067A
- Authority
- US
- United States
- Prior art keywords
- shoe
- brake shoe
- air
- brake
- convex
- 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
Links
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 241000244423 Pteris cretica Species 0.000 description 1
- 241000364021 Tulsa Species 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
- F16D65/06—Bands, shoes or pads; Pivots or supporting members therefor for externally-engaging brakes
- F16D65/062—Bands, shoes or pads; Pivots or supporting members therefor for externally-engaging brakes engaging the tread of a railway wheel
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/78—Features relating to cooling
- F16D65/80—Features relating to cooling for externally-engaging brakes
- F16D65/807—Features relating to cooling for externally-engaging brakes with open cooling system, e.g. cooled by air
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D2069/004—Profiled friction surfaces, e.g. grooves, dimples
Definitions
- This invention relates to brake shoes and has special reference to a brake shoe adapted for use on railroad cars and the like.
- One important object of the invention is to provide an improved form of brake shoe having Ventilating means whereby, during application of the brake, the shoe will be prevented from becoming excessively hot.
- a second important object of the invention is to provide a novel form of brake shoe wherein over-heating and consequent glazing will be prevented.
- a third important object of the invention is to provide a self-cooling brake shoe having means for gathering a current of air and directing it inwardly across the shoe.
- Figure 1 is a side elevation of a brake shoe constructed in accordance with this invention.
- Figure 2 is an elevation from the convex side of such a shoe.
- Figure 3 is a fragmentary section on the line 3 3 of Figure 2.
- Figure 4 is a section on the line 4 ⁇ 4 of Figure 2.
- the brake shoe as here shown is intended for use with a brake head I-I, indicated in broken lines, of the type adopted by the Master Car Builders Association and known as an M. B. C. brake head.
- the shoe therefore has an arcuate body I having a concave face II for engaging the rim of a wheel W shown by broken lines in Figure 4, and a convex face I2 engaging the brake head.
- the convex side of the shoe is provided with the usual transverse rib or boss I3 centrally of its height for engagement with the appropriate portion of the brake head and also with terminal ribs I4 for like purposes.
- an airgathering baille I5 which is carried to the body side by a plurality of ribs I6 at the center and ends of the respective sides.
- baffles I5 extend substantially half way down the thickness of the brake shoe from the convex toward the concave side and extend backward to the concave side to embrace the sides of the brake head H when applied thereto.
- These bailles incline from their forward edges inwardly to a point opposite the convex face of the shoe and then continue to extend inwardly through curved portions as clearly shown in Figure 4. This makes an air duct between each baifle and the respective side of the shoe, the said air duct being wider at its mouth or receiving end and narrower at its rear end.
- the convex face of the brake shoe is provided along the central line at each side of the rib I3 with a plurality of concave grooves Il arranged in plan to form X-shaped gures with adjacent arms of the figures connected. Furthermore, grooves I8 extend from the arms of the X-shaped figures outwardly to open into the channels formed by the bai'lies. At the end of each arm of these figures and also at the center of each X-shaped figure there is provided a vent opening I9 which extends from the convex to the concave face of the shoe and which tapers throughout its length so that it is smaller at the concave side than at the convex side.
- a brake shoe having a body provided with a series of Ventilating perforations, and air gathering baflles extending along and spaced from the sides of said body.
- a brake shoe having a body curved to provide opposite convex and concave faces, said body having Ventilating perforations extending therethrough between said faces, and air gathering bales extending along and spaced from the sides of said body.
- a brake shoe having a body curved to provide opposite convex and concave faces, said body having Ventilating perforations extending therethrough between said faces, said body having 3 channels connecting adjacent perforations, and air gathering baffles extending along and spaced from the sides of said body.
- a brake shoe having a body curved to provide opposite convex and concave faces, said body having Ventilating perforations extending therethrough between said faces, said body having channels connecting adjacent perforations, said body having the convex face provided With grooves connecting adjacent perforatons, and air gathering bales extending along and spaced 5 from the sides of said body.
Description
. www
C. C. EURIT AIR-COOLED BRAKE SHOE'y Filed Jan. 25, 1945 ams,
Patented Aug. 20, 1946 Y UNITED sTATEs PATENT OFFICE AIR-COOLED BRAKE SHOE Carl C. Eurit, Tulsa, Okla.
Application January 23, 1945, Serial No. 574,117
4 Claims.
This invention relates to brake shoes and has special reference to a brake shoe adapted for use on railroad cars and the like.
One important object of the invention is to provide an improved form of brake shoe having Ventilating means whereby, during application of the brake, the shoe will be prevented from becoming excessively hot.
In the type of brake shoes forming the subject matter of this application it is quite common to use cast iron in their manufacture. When these shoes are applied and become over-heated the braking surface of the shoe frequently glazes with the consequence that the braking effect is greatly diminished.
A second important object of the invention is to provide a novel form of brake shoe wherein over-heating and consequent glazing will be prevented.
A third important object of the invention is to provide a self-cooling brake shoe having means for gathering a current of air and directing it inwardly across the shoe.
With the above and other objects in View the invention consists in certain novel details of construction and combinations of parts hereinafter fully described, illustrated in the accompanying drawing, and particularly claimed.
In the accompanying drawing, like characters of reference indicate like parts in the several views and:
Figure 1 is a side elevation of a brake shoe constructed in accordance with this invention.
Figure 2 is an elevation from the convex side of such a shoe.
Figure 3 is a fragmentary section on the line 3 3 of Figure 2.
Figure 4 is a section on the line 4`4 of Figure 2.
The brake shoe as here shown is intended for use with a brake head I-I, indicated in broken lines, of the type adopted by the Master Car Builders Association and known as an M. B. C. brake head. The shoe therefore has an arcuate body I having a concave face II for engaging the rim of a wheel W shown by broken lines in Figure 4, and a convex face I2 engaging the brake head. The convex side of the shoe is provided with the usual transverse rib or boss I3 centrally of its height for engagement with the appropriate portion of the brake head and also with terminal ribs I4 for like purposes. At each side of the body I there is provided an airgathering baille I5 which is carried to the body side by a plurality of ribs I6 at the center and ends of the respective sides.
(Cl. 18S-264) This arrangement is such that the baffles I5 extend substantially half way down the thickness of the brake shoe from the convex toward the concave side and extend backward to the concave side to embrace the sides of the brake head H when applied thereto. These bailles incline from their forward edges inwardly to a point opposite the convex face of the shoe and then continue to extend inwardly through curved portions as clearly shown in Figure 4. This makes an air duct between each baifle and the respective side of the shoe, the said air duct being wider at its mouth or receiving end and narrower at its rear end. Also the convex face of the brake shoe is provided along the central line at each side of the rib I3 with a plurality of concave grooves Il arranged in plan to form X-shaped gures with adjacent arms of the figures connected. Furthermore, grooves I8 extend from the arms of the X-shaped figures outwardly to open into the channels formed by the bai'lies. At the end of each arm of these figures and also at the center of each X-shaped figure there is provided a vent opening I9 which extends from the convex to the concave face of the shoe and which tapers throughout its length so that it is smaller at the concave side than at the convex side.
By means of this arrangement air can flow through the channel formed by the baffles and since brake shoes never fit closely on brake heads, can work its way between the heads and shoe into the openings I9 thus cooling the shoe. Furthermore by means of the bailles I5 heat radiating ns are provided and likewise all the openings I9 add to the heat radiating surface. It will now be plain from this construction that the brake shoe will be efectively cooled and, since the shoe is kept cooled, no glazing of the braking face of the shoe wil occur.
What is claimed is:
1. A brake shoe having a body provided with a series of Ventilating perforations, and air gathering baflles extending along and spaced from the sides of said body.
2. A brake shoe having a body curved to provide opposite convex and concave faces, said body having Ventilating perforations extending therethrough between said faces, and air gathering bales extending along and spaced from the sides of said body.
3. A brake shoe having a body curved to provide opposite convex and concave faces, said body having Ventilating perforations extending therethrough between said faces, said body having 3 channels connecting adjacent perforations, and air gathering baffles extending along and spaced from the sides of said body.
4. A brake shoe having a body curved to provide opposite convex and concave faces, said body having Ventilating perforations extending therethrough between said faces, said body having channels connecting adjacent perforations, said body having the convex face provided With grooves connecting adjacent perforatons, and air gathering bales extending along and spaced 5 from the sides of said body.
CARL C. EURIT.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US574117A US2406067A (en) | 1945-01-23 | 1945-01-23 | Air-cooled brake shoe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US574117A US2406067A (en) | 1945-01-23 | 1945-01-23 | Air-cooled brake shoe |
Publications (1)
Publication Number | Publication Date |
---|---|
US2406067A true US2406067A (en) | 1946-08-20 |
Family
ID=24294765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US574117A Expired - Lifetime US2406067A (en) | 1945-01-23 | 1945-01-23 | Air-cooled brake shoe |
Country Status (1)
Country | Link |
---|---|
US (1) | US2406067A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2729312A (en) * | 1950-10-19 | 1956-01-03 | Robert W Foster | Air cooled brake shoe |
US2748903A (en) * | 1952-01-14 | 1956-06-05 | Robert W Foster | Brake shoe with venturi cooling passages |
US2815103A (en) * | 1955-03-11 | 1957-12-03 | Robert W Foster | Air cooled brake shoe |
US2849092A (en) * | 1954-09-09 | 1958-08-26 | Robert W Matthews | Air cooled brake shoe |
DE1081039B (en) * | 1957-12-20 | 1960-05-05 | Arnold Tross Dr Ing | Brake pad or sole, especially for rail and road vehicles |
US4135606A (en) * | 1977-05-02 | 1979-01-23 | Lewis Nathanial H | Capillary action brake shoe: vacuum suction type |
US20150211590A1 (en) * | 2014-01-24 | 2015-07-30 | Chien Jung Tseng | Brake Pad Heat-Dissipating Structure |
CN108050185A (en) * | 2017-12-27 | 2018-05-18 | 朱宗华 | A kind of open slotting drum lining of vehicle brake |
-
1945
- 1945-01-23 US US574117A patent/US2406067A/en not_active Expired - Lifetime
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2729312A (en) * | 1950-10-19 | 1956-01-03 | Robert W Foster | Air cooled brake shoe |
US2748903A (en) * | 1952-01-14 | 1956-06-05 | Robert W Foster | Brake shoe with venturi cooling passages |
US2849092A (en) * | 1954-09-09 | 1958-08-26 | Robert W Matthews | Air cooled brake shoe |
US2815103A (en) * | 1955-03-11 | 1957-12-03 | Robert W Foster | Air cooled brake shoe |
DE1081039B (en) * | 1957-12-20 | 1960-05-05 | Arnold Tross Dr Ing | Brake pad or sole, especially for rail and road vehicles |
US4135606A (en) * | 1977-05-02 | 1979-01-23 | Lewis Nathanial H | Capillary action brake shoe: vacuum suction type |
US20150211590A1 (en) * | 2014-01-24 | 2015-07-30 | Chien Jung Tseng | Brake Pad Heat-Dissipating Structure |
CN108050185A (en) * | 2017-12-27 | 2018-05-18 | 朱宗华 | A kind of open slotting drum lining of vehicle brake |
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