US1442919A - Process of making railroad frogs and product thereof - Google Patents

Description

c. A. ALDEN.

Jan. 23, 1923.

PROCESS OF MAKING RAILROAD FROGS AND PRODUCT THEREOF.

FILED MAY 25. I920- avhichihas a minimum number of partsvan i 455 if substantially on the line 4-4 of Figure '3;

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iBe it i-known that l, GHaRnnsAi/rns AL- union, a CltiZQIh-Ofllhfi United; States, andmesident of isteelton, in the county of Dauphin &5 andMState of iPennsylvania, haveinvented weertain anew and useful Improvements in -l?rocesses of -Making "Railroad Frogs and Products :Thereof, of which the following is a specification.

:The present invention arelates'to a. method -ofomaking railroadifrogs and more particu- 5 larlya to the production i of such frog-s from Mia :csolid bar of 6 rolled, ipressed or i'forged @metal. #The invention "is claimed broadly 1 5 inapplication 384 237.

Thefpri'ncipaluobjects of the invention-are to increaselproduction andat the same time lower the @costs of manufacture. Further objects consist in the provision ofva fro is inherently strong and capable of standing 5 up under-all degrees oflservice.

1 Y 'llo thisendythe method ofthis invention consists; in operating on a solid bar of metal latter substantially uniform cross section to alter the shape at a .ipoint lr'adj acent ,WhQlG the wings are to end'to :provide torthe flaring ol s the wings s and increased width "ofwthe llan'ge-waysjiat thisi point, and formling the flange-Ways in the top woflthetbar ito iprovii'de. the wings and point. {It de- L si'red, 'thelbari may; benheattreated afterthe l /first operation. p a

g i @then obiect's and features of-inovelty will be :app arent frommthe: description taken 5 in teonneetionywith *thewdrawings, in which: ,ilt -igureiluislarpl-anwelevation of apbary or blank from Which the fro'g 'is constructed; liFigureQ 'isr a cross sectional elevation of "lFigurefi is a iplan view of? the bar-after tthe first operation has ;been performed: on

--the same Figrure *4 is ca sectional elevation taken lBigu-re 5 is a. sectional elevation taken substantially=oni the L line 5-5 of Figure V Eigure fi is a sectional elevation'taken substantially on the line 6- 6 of Figure B;

Figure Tis a top plan; view of the completed fitrogt U 11 Figure 8 is a sectlonal elevation taken substantially on the line 8-8 of Figure 7 Figure 9 is a fisectional elevation 2 taken operation consists inpindenting the recess or 1 groove, 4A1 in the bottom of the blank, this summon, Pnnnsvnwinm.

. substantially on the line 110 10, or; F gure .11 ,is a sectional elevation taken substantially on theline.- 11 -911 ofFigure' 7;

section a, from Which the] frog is constructed,

thisbar having base flanges 44-2. "The first groove having diflerent Widths as indicated in. the plan view, EigureB and sectional views, Figures 4,: 5 and 6. The blank is, not widened. except regionw herelthe wings areito end, as indicated by the section of -Figured at Whichsectionthe central part ofthe groove may, be made deeper; thus further; Widening the bar; at this point. fIt

:WillibG. observed that the cross sectional area of the bar has notl been i'ohanged'by 'the formation-of thereoess. Afterlthese operations, which slightly elongate the bar, the

a same may -be subjected to l suitable heat treatment to. raise the elastic'limit andaileeo timate strengthf Thereafter the top of the bar is for-medavith flange-wayslMG and 447,

thus providingthe Wings 448 andAAQ and i the point 460. .These "flange ways may he liorrnedby removing the metal as bymaoh-ining. At one end the track railsare secured to the frog bythe integralseparator block i4:56,.the removable'bent splice plates 452,

A53 and bolts 58. At the otherend the track blocks 456 and 457 are proper-ly shapedito fit against the Webs of the rails between ,lthe,,105

\ base Tflanges and heads thereof} The "sidesof" ,the bar adjacent the baseof the separator blocks orextensionsiare channeled or recessed to recelvethe sphce plates. Thus at one end the s des are, formed-With recessesv and475 so that the shoulders thus formed constitute smooth e-Xtensions of the outside surfaces of the headsof' the track rails.

Preferably the frog is constructed from a worked steel bar although the invention is "not limited to this metal.

Although a specific illustration of the methodhas been described in detail, it is to be understood that the invention is not thus limited but includes modifications and changes which come within the: scope of the appended claims.

Having thus described the invention what is claimed as new and desired to be secured by Letters Patent is 1. The process of making railroad frogs consisting in operating on a solid metal bar of substantially uniform cross sectional shape to form a recess in the bottom thereof and to Widen the bar at the region where the wings are to end, and removing metal from the top of the bar to form the flangeways, wings and point.

r 1 .2. The process of making railroad frogs consisting in operating on a solid metal bar of substantially uniform cross sectional shape tofonn a recess in the bottom thereof and to widen the bar at the region where the wings are to end and machining out metal from, the top of the bar to form the flangeways, wings and point.

3. The process of making railroad frogs consisting in operating on a solid metal bar of substantially uniform cross sectional shape to form a recess in the bottom thereof without altering the width of the bar ex- 1 cept at the region where the wings are to end, the recess being deeper at this region thereby widening the bar, and forming flange-ways in the top of the bar to provide the wings and point.

l. The process of making railroad frogs [consisting in operating on a solid metal bar of substantially uniform cross sectional shape to form a recess in the bottom thereof without altering the width of the bar except at the region where the wings are to end, the recess being deeper at this region thereby widening the bar, machining out the flangeways in the top of the bar to provide the wings and point and forming narrowed centrally disposed extensions at the ends of the bar to the lateral sides of which the track rails are adapted to be secured.

5. The process of'making railroad frogs consisting in operating on a solid metal bar of substantially uniform cross sectional shape to form a recess in the bottom thereof and to widen the bar at the region where the wings are to end, heat treating the bar and removing metal from the top of the bar to form the flange-ways. wings and point.

6. The process of making railroad frogs consisting in operating on a solid bar of substantially uniform cross sectional shine to widen the same at the region where the wings are to end, removing stock from the top of the bar to form the fla1ige-\vays, wings and point. and operating on an end of the bar to form an integral separator block, adapted to have the track rails cured to the outside lateral sides thereof.

7. The process of making railroad frogs consisting in. pressing in a portion of the bottom of a solid bar of substantially uni form cross sectional shape to widen the same at the region where the wings are to end, removing stock from the top of the bar to form the flange-ways, wings and point, and operating on an end of the bar to form an integral separator block adapted to have the track rails secured to the outside lateral sides thereof.

8. The process of making railroad frogs consisting in indenting one of the horizontal surfaces of a solid bar of substantially uniform cross sectional shape to widen the same at the region where the wings are to end, removing stock from the top of the bar to form the flange-ways. wing and point. and operating on an end of the bar to form an integral separator block adapted to have the track rails secured to the outside lateral sides thereof.

9. The process of making railroad frogs consisting in indenting the bottom of a solid metal bar of substantially uniform cross sectional shape thereby forming a recess and widening the bar at the region where the wings are to end, and removing metal from the top of the bar to form the flange-ways. wings and point. 4 i

10. The process of making a one piece railroad frog having an integral separator block at each end adapted to have the track rails secured to the outer sides thereof, consisting in operating on a solid bar of substantially uniform cross sectional shape to indent a recess in the bottom thereof the length of which is less than the distance between the adjacent ends of said blocks, said operation widening the bar only at the region where the wings are to end, forming flange-ways in the top of the bar to provide the wings and oint, and operating on the end portions 0 the bar to form said blocks.

11. The process of making a one piece railroad frog having an integral separator elanie block at each end adapted to have the track rails secured to the outer sides thereof, consisting in operating on a solid bar having base flanges, said bar being of substantially uniform cross sectional shape, to indent a recess in the bottom thereof the length of which is less than the distance between the adjacent ends of said blocks, said operation widening the bar only at the region where the wings are to end, forming flange-Ways in the top of the bar to provide the wings and point, and operating on the end portions of the bar to form said blocks, and recesses in the sides of the bar adjacent said blocks for the splice plates and removing the base flanges to a point inside the inner ends of said recesses.

j tional shape to form the tips of the Wings,

and machining out the fiangeways to complete the Wings and form the point.

13. As an article of manufacture, a noncast single piece railroad frog having flange- Ways, wings, a point and means at the ends thereof for securing the rails thereto, said frog being formed from a solid bar of worked bar of worked metal of uniform. cross sectional shape, said shape being a rectangle with flanges projecting from a pair of adjacent corners of said rectangle.

16. The process of making a one piece railroad frog having an integral separator block at one end adapted to have the track rails secured to the outer sides thereof, consisting in operating on a bar of substantially uniform cross section to widen the same at the region where the wings are to end, forming the flangeways, Wings and point, and op erating on an end of the bar to form an integral separator block and recesses in the sides of the bar adjacent said block for the splice plates.

17. As an article of manufacture a rolled steel frog of substantially uniform cross sectional area throughout the greater part of its length having an integral separator block at each end adapted to have the track rails secured to the outer sides thereof, each block being of gradually increasing width from its neck to its end, said frog being formed with recesses in the sides thereof adjoining said blocks for the splice plates.

18. As an article of manufacture a rolled steel frog of substantially uniform cross sectional area throughout the greater part of its length having an integral separator block at each end adapted to have the track rails secured to the outersides thereof, each block being of gradually increasing width from its neck to its end and having its sides adapted to snugly fit into the channel in the sides of the rails.

In testimony whereof I affix my signature.

CHARLES AMES ALDEN.

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