US1880283A - Brake hanger - Google Patents

Description

F. SCHAEFER BRAKE HANGER Oct. 4, 1932.

Filed Aug. 50, 1930 INVENTOR WITNESSES Mw om a Patented Oct. 4, 1932 `V d' 1,880,283

`iuNi'raD STATES PATENTl ortica FREDERIC SCI-IAEFER, OF PITTSBURGH, PENNSYLVANIA BRAKE HANGER Application iled. August 30, 1930. Serial No. 479,070.

My invention pertains to brake hangers by forging or pressing, to a reduced diameter such as are employed for suspending brake at the' sides thereof adjacent the inside of beams in the trucks of railway cars and the the hanger, as indicated at 13. The surplus like, and especially to brake hangers of the metal is forced outwardly to form a rib 14 5 U type in which two vertical legs have susextending around the corner. Such rib 55 pension eyes at their upper ends and are c011- bulges from the body of the hanger, not only nected at their lower ends by a transverse outwardly at the base of the leg but downbrake-head engaging yoke. wardly, as indicated at 15, below the bottom In the manufacture of brake hangers of of the yoke. The operation of reforming the l the U type, it has been found economical to hanger thus at the lcorners requires the ex- 60 make them of uniform cross-sectional area in ercise of only a relatively light pressure, so the legs and yoke, since the hanger can then that there is no flash or other loss of metal.

b e formed by bending from a simple bar with- `By the above means additional strengthis out the necessity of any upsetting operations given to the hanger at the corners amply suffiother than such as may be required in order cient to guard against breakage at these to provide suflicient metal for the suspension points, This result is obtained without the eyes. However, the difficulty has been expeaddition of any metal at the corners, and'also rienced that sometimes such hangers would without the introduction ofV any sharp break at the bends, due to the stretching and changes' in cross-sectional shape, which lat- U buckling of the metallic structure by the ter, if present, would of themselves afford 70 bending operation. It is the object of my a reason for breakage. VOn the other hand, invention to obviate this diiiiculty whilst at the operation of forging the corners as detlie same time retaining the economical adscribed is quite economical, and'adds little vanages of a brake hanger which is 0f unito the cost'of the hanger.

5 form cross-section in the legs and yoke. My invention may be applied to brake 75 By way of example, two forms of brake hangers having yokes of other than circular hanger constructed in accordance with my in- Cross section. For instance, in Figs. 4 and vention are described in the following specithere is shown a hanger of the interlocking cation and shown in the accompanying drawn type, that is, of the type in which the yoke 30 ing, in which: is shaped for interlocking engagement with 80 Fig. lis a front view of a hanger having a the brake-head. As in the form shown in yoke of circular section; Figs. 1 8, the yoke 12a and legs 10a are the F ig. 2 is an edge view of one of the corners Same in cross-sectional area, the hanger being 0f the hanger; produced by bending a rod of uniform cross- 3 Fig. 3 is a section 0n the line HI-HI of section and then subjecting the yoke 12a to 85 Fig, 1; a forging operation to reduce it to the de- Fg. 4 is a front view of a hanger having a sired interlocking shape, such as the pear yoke of pear shape in cross section; and shape shown. Preferably at the same forg- Fig, 5 is a section on the line V-V 0f ing operation, the diameter of the legs 10a 4U F ig. 4. is reduced as indicated at 13a, the surplus Referring first to the construction of brake met-a1 being Caused t0 lOW Outwardly only hanger shown in Figs. 1 and 2, it comprises to produce the rib 14a extending around the a pair of legs formed at their upper ends COlneI of the hanger and merging into the with suspension eyes 11, and connected at IlllTOW Part 0f the PQM-Shaped 570k@ SUCh l their lower ends by a yoke 12. In this form, rib having a downward bulge a as in the 95 both the legs and yoke are of circular cross preceding, non-interlocking form.

section and of the same diameter, the hanger I claim:

being produced by bending a bar of uniform 1. A U-shaped brake hanger having legs cross section. At and adiacent its point of and atransverse yoke integrally formed from juncture with the yoke, each leg is re-formed, a rod of uniform cross sectional area, said hanger being formed with a strengthening rib extending outwardly therefrom around each of the corners and merging at their ends into said legs and yoke, and said ribs being mterially narrower than the body of the yo e.

2- A U-Shaped brake hanger having legs and a transverse yoke integrally formed from a rod of uniform cross sectional area, said legs being reduced towards the inside of the hanger, adjacent the eorners, and being exf tended outwardly to provide strengthening ribs solely at the outsides of such corners, said ribs being materially narrower than the body of the yoke.

3? A Ufshaped brake hang-e1' having .legs of eiroular shape in oross section and a'transverse yoke, said legs and yoke being inte,-k

grally formed from a rod of uniform cross sectional area, and said legs being reduced in diameter adjacent the corners, the balance f of the material making up the uniform cross seotion constituting a strengthening rib exe tending outwardly around the Corners .of the hanger and merging at their ends into said legs and yoke, and said ribs being materially narrower than the body of the yoke,

4. A. lglfshaped brake hanger having legs and a transverse yoke integrally formed from a rod of uniform cross sectional area, said hanger beingformedwith a strengtheningY rib around each of the corners merging at their ends Vinto said legs and yoke, and` produoing a bulge which extends downward i, below the bottom of the yoke,'a nd said ribs being materially narrower than the body of the yoke.

1,141- testmony whereof, I Sign my name- FREDEBIKQ- SQHAEFER.

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