US1072866A - Reversible hard-center frog. - Google Patents

Description

T. F. McBVOY & 0. J. LEPPBRD. REVERSIBLE HARD CENTER FROG.

APPLICATION FILED MAY 5, 1913'.

Patented Sept. 9, 1913.

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BIA PLANOORAPH C0.. WASHINGTON, D c- TIMOTHY llIoEVOY AND CHARLES J. LEPPERD, 0F POTTSTOWN, PENNSYLVANIA.

REVERSIBLE HARD-CENTER FROG.

To all whom it may concern:

Be it known that we, TIMOTHY F. Mo- EvoY and CHARLES J. Lnrrnnn, citizens of the United States, residing at Pottstown, in the county of Montgomery and State of Pennsylvania, have invented certain new and useful Improvements in Reversible Hard-Center Frogs, of which the following is a specification.

()ur invention relates to improvements in reversible hard center frogs, the object of the invention being to provide a frog of this character which may be reversed in its entirety or any portion thereof reversed when worn.

A further object is to provide a hard center frog in which the hard center and the rails and parts connected therewith are constructed uniformly on opposite sides, so that any one or all of said parts may be reversed, and operate with equal efliciency in either position. 7

lVith these and other objects in view, the invention consists in certain novel features" of construction and combinations and arrangements of parts as will be more fully hereinafter described and pointed out in the claims.

In the accompanying drawings; Figure 1 is a plan view illustrating our improved frog. Fig. 2 is a view in section on an enlarged scale on the line 22 of Fig. 1. Fig. 3 is a similar view in section on an enlarged scale on the line 33 of Fig. 1. Fig. 4 is a similar view in section on an enlarged scale on the line t-t of Fig. 1. Fig. 5 is a similar view in section on an enlarged scale on the line 55 of Fig- 1. Fig. 6 is a similar view in section on an enlarged scale on the line 66 of Fig. 1. Fig. 7 is a similar view in section on an enlarged scale on the line 77 of Fig. 1.

1 represents the hard center of our improved frog which is secured between wing rails 2 projecting laterally in both-directions from the throat 3 of the frog. The center 1 at one end is provided with a relatively narrow longitudinal extension 4: clamped between the usual diverging track rails '5. These rails 5 and the extension 4: having registering recesses 6 in which relatively short plates 7 are secured by rivets 8.

Throughout the entire length of the frog, it is shaped alike on its upper and lower surfaces. That is to say, it is provided on top and bottom with integral rail support- Specification of Letters Patent.

Application filed May 5, 1913.

Patented Sept. 9, 1913. Serial No. 765,565.

ing points 9 and longitudinal diverging flange ways 10, with tread receiving -portions 11 forming the outer walls of said flange ways, and fitting within longitudinal recesses 12 in rails 2. A series of bolts 13 are projected through alined openings in the center 1 and rails 2 throughout the length of the body portion of the center, and these bolts are also projectedthrough bars 141 which are located against the outerfaces of the webs 15 of rails 2. Nuts 16 are screwed onto the bolts and are preferably held by any improved form of nut locking washer 17. Blocks 18 are located between the rails 5 and rails 2 at theeXtreme ends of the latter, and bolts 19 are projected through registering openings in rails 2, blocks 18, rails 5, and extension at, and are secured in place by nuts 20. i a 1 By reference particularly to the cross sections in Figs. 2 to 7 inclusive, it will be noted that the rails 2 are precisely alike at top and bottom throughout their ends.

These rails 2 are formed with heads 21 at top and bottom connected by a relatively thin web 15. The inner portions of the heads at top and bottom throughout a con siderable portion of the length of the frog, are formed wit-h the recesses 12 above re ferred to, to accommodate the tread portions 11 of the hard center 1. In other words, the shape of the faces of the rails at their point of contact with the center 1, conforms in shape to the shape of the center, and which shape gradually changes to form a firm and rigid interlocking contact as clearly illustrated in cross section.

As the hard center 1 and the rails 2, as well as the rails 5, are alike at top and bottom, they can be separably reversed or the frog as an entirety may be reversed and operate with equal efficiency. This is a distinct advantage because it frequently happens that only one of the parts becomes worn and this part may be reversed. If on the other hand, the entire frog is worn on its upper surface, it may be reserved, and in any event, the reversal of the several parts is a matter of judgment, and our improvements result in a'great saving to the railroad.

Various slight changes might be made in the general form and arrangement of parts described without departing from our invention, and hence we do not limit ourselves to the precise details set forth, but

consider ourselves at liberty to make such changes andalterations as fairly fall with.- in the spirit and scope of the appended claims.

Having thus described our invention, what we claim as new anddesire to secure by Letters Patent is:

l. A railroad frog comprising a hard center, shaped alike on its upper and lower faces, and rails secured tothe opposite sidesof the, center, said; railsthroughouta por tion'; Ofi their length recessed to=receivethe center. therein, substantially as described:

A; railroad; frog comprising a hard center, shaped alike on its upp er: and lower faces, rails secured to opposite sidesot'ithe center, saith rails SllEtPOCll alikeat: top and bottom, and: said rails throughout a portion ofitheirlength recessed to receive the center therein, substantially as descrlbed.

x31 A- railroad; frog comprising whard center, shaped; alike on its uppen and lower 'iaces, and :rails secured !to the opposite sides of, the;- center,.. said'i rails throughout a portionofxthein length recessed toreceive thecentcr; therein,.saidcenter having anextension' at. one end, and rails secureditoisaid extension, substantially as described.

LIA railroad. frog comprising a hard centenshaped alike oil-its upper andlower. :faces rails secured ito oppositesides of the center, said rails shaped alike at top and bottom, said rails throughout a portionof their. length recessed to receive the center therein, said 1 center. having an extension at= one-end; and :rails secured lto. .said extension, substantially as described.

5. A railroad; frog comprising aa hard center, shaped alike on its upper and lower faces, rails shaped alike onrtheir upper and lower faces and recessed to receive the frog, an 6Xt61lSl0I1-OILOI1G61'1C1 of said frog, rails at opposite sides of said extension, blocks bQ-tWfiGlLthB. diverging ends of the first-mentioned rails and the last-mentioned rails, and bolts projected through the first-mentioned rails and the center and through the first-mentioned rails, the last-mentioned rails and the extensionyandi nuts on said bolts, substantially as desoribedl 6. A railroad frog comprising a hard center, shaped alihe on.its-upperand loweri faces, rails 'sha-pedalike on their upper; and lower faces and recessedto receive the frog, an extension on: one en'd of said frog, rails at opposite sides ofsaid extension,.. blocks between the diverging :ends of: the firstementione'cl rails and, the last mentioned rails, and boltsprojected through the first-mentioned rails-andathe center andithrough the first'mentioned: rails, the lt'Stll'lBH'tlOl'lG'Cl' rails and the extension, nuts 011 said bolts, saidlfirstmientioned rails-s having. heads at both a upper and lower edges with relatively narrowwebs 4 connecting: them, and bars locatediagainst the outer faces" of. saidwebs andthrough which saidboltsare projected, substantially as I described.

In testimony whereof we have signed'eour names" to this specification. in the-presence of two subscribing witnesses;

TIMOTHY; MGEVOY.

CHARLES J.u LEPBERD.

WVitnesses MARY E. DITTUS, CHAS: E; Pours.

Copies of;-this patent may be obtained'for five cents each, byaddressing fthB "flommissioner of Patents;- Washington;:D.'-G..

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