US1434865A - Method of forging brake-beam trunnions - Google Patents
Method of forging brake-beam trunnions Download PDFInfo
- Publication number
- US1434865A US1434865A US377156A US37715620A US1434865A US 1434865 A US1434865 A US 1434865A US 377156 A US377156 A US 377156A US 37715620 A US37715620 A US 37715620A US 1434865 A US1434865 A US 1434865A
- Authority
- US
- United States
- Prior art keywords
- blank
- figures
- trunnion
- brake beam
- trunnions
- 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
- 238000000034 method Methods 0.000 title description 6
- 238000005242 forging Methods 0.000 title description 4
- 208000007256 Nevus Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K7/00—Making railway appurtenances; Making vehicle parts
- B21K7/12—Making railway appurtenances; Making vehicle parts parts for locomotives or vehicles, e.g. frames, underframes
- B21K7/14—Making railway appurtenances; Making vehicle parts parts for locomotives or vehicles, e.g. frames, underframes brake rigging or brake parts
Definitions
- This invention relates to a method for forging brake beam trunnions.
- An object of this invention to simplify and improve the methods of forging brake beam trunnions reducing the cost of manufacture and at the same time providing a brake beam trunnion adapted to meet the requirements for successful commercial use.
- Figures 3 and i are end and top plan views of the same blank after being upset;
- Figures 5 and 6 are end and top plan views of the same blank after being further upset
- Figures 7 and 8 are end and top plan views of the blank after being still further upset. the blank now being shown as provi ded with sufficient built-up stock necessary for succeeding operations;
- Figures and 14 are end and top plan views showing the brake beam trunnion in finished form.
- brake beam shown is of the 1920. Serial No. 377,158.
- the beam is then drawn out under a steam hamer bet-ween. suitable dies to the form shown in Figures 9 and 10, giving; the trunnion portion 12 its first rounded appearance.
- the trunnion port-ion is then subjected to pressure between the dies of a drop hammer giving; the trunnion an appearance as shown in Figures 11 and there being a fin or dash 13 termed around the trunnion and between tbe adjacent portions of the coopersiting; dies.
- the fin or flash is then removed, leaving; the brake beam trunnion 14.- in. its finished form. shown in Figures 13 and let. the trunnion being provided with a shoulder 15.
- the method of forming a brake beam trunnion consisting in providing a blank. heating said blank, upsetting same to build up the stool: for the trunnion, drawing out the built-up portion to approach the final trunnion shape. and subjecting said drawnout portion to a further drawing-out action between dies to give the trunnion its final shape.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Description
L. L. WHITNEY.
METHOD OF FORGING BRAKE BEAM TRUNNIONS.
-APPLICATION FILED mus, 1920.
1,434,865. Patented Nov. 7, 1922.
I?! I p I ""WIJHIHF Hill I i! 7E?" .54 J0 fi wn 1H AL X453. 10
(MINIMUM I Patented Noun 7, i923? Uttt't iiit .iMERIC/iill' STEEL NEVI METHOU OF BBAIZE-BEi-UEE TRUNNIQNS.
Application filed April 28,
T 0 all whom it may concern:
Be it known that I, LoRnN L. W'HrTNEY a citizen of the United States. residing Hammond in the county of Lake and State of Indiana. have invented certain new and useful Improvements in Methods of Forging Brake-Beam Trunnions, of which the following is a specification.
This invention relates to a method for forging brake beam trunnions.
An object of this invention to simplify and improve the methods of forging brake beam trunnions reducing the cost of manufacture and at the same time providing a brake beam trunnion adapted to meet the requirements for successful commercial use.
lhis and other objects are accomplished by means of the method disclosed on the accompanying sheet of drawings, in which- Figures 1 and 2 are end. and top plan views respectively of a brake beam blank;
Figures 3 and i are end and top plan views of the same blank after being upset;
Figures 5 and 6 are end and top plan views of the same blank after being further upset;
Figures 7 and 8 are end and top plan views of the blank after being still further upset. the blank now being shown as provi ded with sufficient built-up stock necessary for succeeding operations;
Figures 9 and 10 are end and top plan views of the blank after the end has been drawn out a predetermined amount under a steam hammer between suitable dies;
Figures 11 and 12 are end and top plan views of the same blank after the end of the blank has been subjected to pressure between dies of a drop hammer to its completed form. with the exception of the tin; and
Figures and 14 are end and top plan views showing the brake beam trunnion in finished form.
It will be noted from the figures of the drawings that only a portion of the brake beam has been shown, itbeing understood that the opposite end of same will appear as the end shown.
The type of brake beam shown is of the 1920. Serial No. 377,158.
plain II section. In forming the trunnion a commercial brake beam blank 10 of I section provided. shown in Figures 1 and 2. The end of the blank is then heated and upset a predetermined amount in any suitable welldrnown type of upsetting machine, giving the end of the blank an appearance as shown in Figures 3 and 4. The end of the blank is then upse an increased amount as shown in Figures 5 and 5, and then subjected to a third upsetting action. giving end oi the blank built-up portion 11 at stock, as shown in Figures 7 and 8 preparatory to the succeeding operations. It will be understood that during all of these upsetting actions the blank 10 is properly gripped between suitable dies to control the upsetting at the proper points. The end oi? the beam is then drawn out under a steam hamer bet-ween. suitable dies to the form shown in Figures 9 and 10, giving; the trunnion portion 12 its first rounded appearance. The trunnion port-ion is then subjected to pressure between the dies of a drop hammer giving; the trunnion an appearance as shown in Figures 11 and there being a fin or dash 13 termed around the trunnion and between tbe adjacent portions of the coopersiting; dies. The fin or flash is then removed, leaving; the brake beam trunnion 14.- in. its finished form. shown in Figures 13 and let. the trunnion being provided with a shoulder 15.
It is my intention to cover all modifications of the invention falling within the spirit and scope 0'? the following claim.
I claim:
The method of forming a brake beam trunnion, consisting in providing a blank. heating said blank, upsetting same to build up the stool: for the trunnion, drawing out the built-up portion to approach the final trunnion shape. and subjecting said drawnout portion to a further drawing-out action between dies to give the trunnion its final shape.
Signed at Hammond, Indiana, this 22 day of April, 1920.
LOREN L. WHITNEY.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US377156A US1434865A (en) | 1920-04-28 | 1920-04-28 | Method of forging brake-beam trunnions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US377156A US1434865A (en) | 1920-04-28 | 1920-04-28 | Method of forging brake-beam trunnions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1434865A true US1434865A (en) | 1922-11-07 |
Family
ID=23487995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US377156A Expired - Lifetime US1434865A (en) | 1920-04-28 | 1920-04-28 | Method of forging brake-beam trunnions |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1434865A (en) |
-
1920
- 1920-04-28 US US377156A patent/US1434865A/en not_active Expired - Lifetime
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