US1691010A - Brake shoe for car retarders - Google Patents
Brake shoe for car retarders Download PDFInfo
- Publication number
- US1691010A US1691010A US225301A US22530127A US1691010A US 1691010 A US1691010 A US 1691010A US 225301 A US225301 A US 225301A US 22530127 A US22530127 A US 22530127A US 1691010 A US1691010 A US 1691010A
- Authority
- US
- United States
- Prior art keywords
- brake
- brake shoe
- shoe
- car
- toe
- 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
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K7/00—Railway stops fixed to permanent way; Track brakes or retarding apparatus fixed to permanent way; Sand tracks or the like
- B61K7/02—Track brakes or retarding apparatus
- B61K7/04—Track brakes or retarding apparatus with clamping action
Definitions
- This invention relates in general to brake apparatus for location along a railway track for retarding cars as they pass thereby, generally known as car retarders or track brakes,
- brakev accomplished by using a brake shoe comprising a brake shoe ofcast material, such as cast iron, or some special brake shoe metal.
- a further object is to decrease the amount of material used in making the brake shoes, facilitate the escape from the brake shoes of 30 the heat generated by the frictional braking,
- FIG. 1 is atransverse sectional elevation of a portion of a retarder including the present invention.
- Fig. 2 is a transverse sectional view, to an enlarged scale, of a brake shoe and brake beam in accordance with the present invention.
- FIG. 1 there is shown one track rail 1 of a railway track, carried on ties 2, by means of clamping blocks 3, held to the ties by spikes 4. r
- brake beams 5 Mounted on the clamping blocks 3 for sliding motion toward and away from the track rail 1, are brake beams 5 carrying brake shoes BS arrangedto be forcedinto frictional engagement with either side of a car wheel 6.
- Each brake beam has a spring guide 7 pivoted thereto by means of a pin 7 andcarrymg a spring 8 arranged to urge the brake shoe and brake beam inwardly toward the track rail '1'.
- the present case does not show the slidable or connection between the brake beams and the clamp blocks since this isfully set forth in applicants co-pending application 70,599, filed Nov. 21, 1925, to which attention is here directed.
- H r i The brake shoe BS, as mentioned above, is formed of an integral piece of steel and rolled to the cross section shown in the drawing.
- It comprises a relatively narrow body 9, having an inwardly projecting head lOat its (1 upper end,and an inw'ardly'proj ecting toe 11 at its lower end, the toe resting on, and being supported by an inwardly projecting shoulder 12 on brake beam 5.
- the brake beam screws 13 are employed, which passthrough the brake beam as shown in Fig. 2 and through the body of thebrake shoe just below the head 10, terminating flush with the inner face of thefbody9. This provides a secure attaching means while permitting easy replacement ofbrake shoes when necessary.
- the brake shoe on its face toward the brake beam, is grooved out asshown at 14 and 15 in order to reduce the amount of metal in the shoe and at the same time provide an'increased surface for radiation of the generated frictional heat.
- a brake beamand a brake shoe carried thereby the brake shoe comprising a relatively narrow body, an inwardly projecting head at the upper end of the body for frictional engagement with a car wheel, an inwardly projecting toe at the lower end of the body, and a shell on the brake beam on which the toe rests.
- the brake shoe comprising a rolled steel section having a relatively narrow body, an inwardly projecting head at the upper end of the body for frictional engagement with a car wheel, an
- the brake shoe comprising a relatively narrow body, an inwardly projecting head at the upper end of the body for frictional engagement with a car wheel, an inwardly projecting toe at the lower end of the body, a shelf on the brake beam on which the toe rests and means fastening the shoe to the beam and passing through the beam and the said body of the shoe and terminating flush with the inner face of said body.
- a car retarder brake shoe comprising, a rolled steel section having a relatively narrow body, a friction head projecting inwardly from one end of the body, and a support toe 1proj ecting inwardly from the other end of the ody.
- a car retarder brake shoe comprising,
- a rolled steelsection having a relatively narrow body, a friction head pro ecting mwardly from one end of the body, a support toe projecting inwardly from the other end of the body, and grooved out portions in the outer face of said brake shoe.
- a car retarder brake shoe comprising, a rolled steel section having a relatively narrow body, a friction head projecting inward- 1y from one end of the body, a support toe projecting inwardly from the other end of the body, and grooved out portions in the outer face of said shoe, the body being drilled parallel with said head for attachment of the brake shoe to operating means therefor.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Description
Nov. 6,1928. I 1,691,010
W. K. HOWE BRAKE SHOE FOR CAR RETARDERS Filed Oct. 10, 1927 w INXENTOR 7%)1'TORNEY Patented Nov. 6 1928 UNITED STATES PATENT OFFICE.
WINTHROP K. HOWE, OF ROCHESTER, NEW YORK, ASSIGNOR TO'GENERAL RAILWAY SIGNAL COMPANY, OF ROCHESTER, NEW YORK.
BRAKE SHOE FOR, GAR nnrannnn's.
Application filed October 10, 1927. Serial No. 225,301.
This invention relates in general to brake apparatus for location along a railway track for retarding cars as they pass thereby, generally known as car retarders or track brakes,
b and has more particular reference to the physical characteristics and particularconformation of a brake shoe employed in such brakes.
In retarders of the type in question, brakev accomplished by using a brake shoe comprising a brake shoe ofcast material, such as cast iron, or some special brake shoe metal.
It is a further Object of this invention to decrease the cost of manufactureof the brake shoes while increasing the useful life of th same and also the efficiency thereof.
A further object is to decrease the amount of material used in making the brake shoes, facilitate the escape from the brake shoes of 30 the heat generated by the frictional braking,
and reduce to a minimum the amount of metal discarded when the brake shoe has to be replaced by a new one.
Further objects, purposes and characteristic features of this invention will appear as the description progresses, reference being had to the accompanying drawings showing, solely by way of illustration, one form of the invention. In the drawings 2- Fig. 1 is atransverse sectional elevation of a portion of a retarder including the present invention; and
Fig. 2 is a transverse sectional view, to an enlarged scale, of a brake shoe and brake beam in accordance with the present invention.
Referring to the drawings, "and first more particularly to Fig. 1, there is shown one track rail 1 of a railway track, carried on ties 2, by means of clamping blocks 3, held to the ties by spikes 4. r
Mounted on the clamping blocks 3 for sliding motion toward and away from the track rail 1, are brake beams 5 carrying brake shoes BS arrangedto be forcedinto frictional engagement with either side of a car wheel 6.
ing a rolled steel section rather than employ- Each brake beam has a spring guide 7 pivoted thereto by means of a pin 7 andcarrymg a spring 8 arranged to urge the brake shoe and brake beam inwardly toward the track rail '1'. The present case does not show the slidable or connection between the brake beams and the clamp blocks since this isfully set forth in applicants co-pending application 70,599, filed Nov. 21, 1925, to which attention is here directed. H r i The brake shoe BS, as mentioned above, is formed of an integral piece of steel and rolled to the cross section shown in the drawing. It comprises a relatively narrow body 9, having an inwardly projecting head lOat its (1 upper end,and an inw'ardly'proj ecting toe 11 at its lower end, the toe resting on, and being supported by an inwardly projecting shoulder 12 on brake beam 5.
For securely fasteningthe brake 'shoeto I5 the brake beam screws 13 are employed, which passthrough the brake beam as shown in Fig. 2 and through the body of thebrake shoe just below the head 10, terminating flush with the inner face of thefbody9. This provides a secure attaching means while permitting easy replacement ofbrake shoes when necessary.
The brake shoe, on its face toward the brake beam, is grooved out asshown at 14 and 15 in order to reduce the amount of metal in the shoe and at the same time provide an'increased surface for radiation of the generated frictional heat.
With the brake shoe formed of rolled steel a much longer life is insured than is the case on with such brake shoes as formally employed and made of cast material. Also, when the brake shoe must be discarded, due to wear, less metal need be thrown away than formerly, dueto the configuration of the brake shoe 95 and particularly to the grooved portions 14 and 15.
The screws 13, terminating flush with the inner face of the body 9 of the brake shoe, permit the braking head 10 to be worn down m 1 until its inner face is substantially flush with the inner face of the body. As shown in Fig. 1, the head 10 is positioned high enough up to bear with its entire friction surface against thecar wheel 6, while the toe 11 is sufliciently low to clear the wheel and avoid any interference therewith.
It has been found in practice that under certain conditions the car wheels tend toride up on the brake shoes, and in case they should 11 against the brake beam shoulder 12, will prevent any tendency to tip the brake shoe out of the vertical plane and avoid damage to the braking apparatus.
The above rather specific description or" this invention has been given solely by way of example, and is not intended, in any manner whatsoever, in a limiting sense. Obviously, the invention can assume various phys ical forms, and is susceptible of numerous modifications, and all such forms and modifications are intended to be covered by this invention, as come within the scope of the appended claims. 7
Having described my invention, I new claim 1. In a car retarder, a brake beamand a brake shoe carried thereby, the brake shoe comprising a relatively narrow body, an inwardly projecting head at the upper end of the body for frictional engagement with a car wheel, an inwardly projecting toe at the lower end of the body, and a shell on the brake beam on which the toe rests.
2. In a .car retarder, a brake beam and a brake shoe carried thereby, the brake shoe comprising a rolled steel section having a relatively narrow body, an inwardly projecting head at the upper end of the body for frictional engagement with a car wheel, an
inwardly projecting support toe at the lowerend of the body, and a shelf on the brake beam on which the toe rests.
8. In a car retarder, a brake beam and a brake shoe carried thereby, the brake shoe comprising a relatively narrow body, an inwardly projecting head at the upper end of the body for frictional engagement with a car wheel, an inwardly projecting toe at the lower end of the body, a shelf on the brake beam on which the toe rests and means fastening the shoe to the beam and passing through the beam and the said body of the shoe and terminating flush with the inner face of said body. 7
4. A car retarder brake shoe, comprising, a rolled steel section having a relatively narrow body, a friction head projecting inwardly from one end of the body, and a support toe 1proj ecting inwardly from the other end of the ody.
5. A car retarder brake shoe, comprising,
a rolled steelsection having a relatively narrow body, a friction head pro ecting mwardly from one end of the body, a support toe projecting inwardly from the other end of the body, and grooved out portions in the outer face of said brake shoe.
6. A car retarder brake shoe, comprising, a rolled steel section having a relatively narrow body, a friction head projecting inward- 1y from one end of the body, a support toe projecting inwardly from the other end of the body, and grooved out portions in the outer face of said shoe, the body being drilled parallel with said head for attachment of the brake shoe to operating means therefor.
In testimony whereof I affix my slgnature.
VVINTHROP K. HOIVE.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US225301A US1691010A (en) | 1927-10-10 | 1927-10-10 | Brake shoe for car retarders |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US225301A US1691010A (en) | 1927-10-10 | 1927-10-10 | Brake shoe for car retarders |
Publications (1)
Publication Number | Publication Date |
---|---|
US1691010A true US1691010A (en) | 1928-11-06 |
Family
ID=22844349
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US225301A Expired - Lifetime US1691010A (en) | 1927-10-10 | 1927-10-10 | Brake shoe for car retarders |
Country Status (1)
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US (1) | US1691010A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4003451A (en) * | 1975-06-30 | 1977-01-18 | Qiv Incorporated | Low noise brake shoe for track retarder |
US4064976A (en) * | 1976-11-26 | 1977-12-27 | Muller Westley C | Car retarder shoe structure |
US20100252372A1 (en) * | 2009-04-02 | 2010-10-07 | Aaa Sales & Engineering, Inc. | Securing Brake Shoes to Brake Beams in a Railroad Car Retarder |
-
1927
- 1927-10-10 US US225301A patent/US1691010A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4003451A (en) * | 1975-06-30 | 1977-01-18 | Qiv Incorporated | Low noise brake shoe for track retarder |
US4064976A (en) * | 1976-11-26 | 1977-12-27 | Muller Westley C | Car retarder shoe structure |
US20100252372A1 (en) * | 2009-04-02 | 2010-10-07 | Aaa Sales & Engineering, Inc. | Securing Brake Shoes to Brake Beams in a Railroad Car Retarder |
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