US1781191A

US1781191A - Rail anchor

Info

Publication number: US1781191A
Application number: US289831A
Authority: US
Inventors: Frederick A Preston
Original assignee: P & M Co
Current assignee: P & M Co
Priority date: 1928-07-02
Filing date: 1928-07-02
Publication date: 1930-11-11
Anticipated expiration: 1947-11-11

Description

Nov. 11', 1930. PRESTON 1,781,191 I July 2. 1928 2 Sheets-Sheet 2 a I 4 Eugenia 1 2 Mam I fl fms Patented Nov. 11, 1930 UNITEDSTATES PATENT orries Y FREDERICK A. rnnszron, or LAKE nonnsr, ILLINOIS, Ass enoaTo 'rnn'ra M cont PANY, or CHICAGO, ILLINoIs,

A coliromrronon ILLINOIS RAIL ANCHOR Application filed July 2,

This invention relates to rail anchors and has for its object to provide an improved onepiece rail anchor having rail ripping means which embraces the base of a railroad rail and maintains its hold on the rail by reason of a combination of a plurality of gripping engagements.

A more specific object is to provide a rail anchor having an under rail portion and inwardly projecting jaws, one of which is so formed as to exert a spring grip both vertically and transversely of the rail and which is adapted to be flexed in applying the anchor to permit the other jaw to be hooked over the upper longitudinal corner of the base at the opposite side of the rail.

Another object is to provide an arrangement of rail gripping surfaces whereby a strong shackle grip transversely of the rail is effected when one end of the. anchor is pressed against a cross tie. In this connection the invention contemplates a construction in which the rail gripping members, when in their normal gripping position on the rail, are spaced'from each other a distance less than the width of the rail base, whereby one end of the anchor serves as a lever arm to rock the rail gripping members into said shackle gripping engagement with the rail.

Another object is to provide an anchor of the above character in which the transverse spring grip produced by a reflex action transversely of the rail of previously distorted parts of the anchor. The invention also contemplates a combination transverse spring grip, one component of which is produced b'yadirect reflex action of a resilient part of the anchor as above noted, and the other component of which is produced by a vertical reflex action of the spring jaw exerting its'pressure downwardly against an inclined surface of the base. A further object is to provide, in an anchor of the above general type, a jaw construction having a rela- 1 tively large range of flexing limits without impairing its holding qualities. A still further and more specific object is to provide an improved rail anchor in which one jaw bears against the web of the rail and the other jaw hooks over the upper edge of the 1928. Serial No. 289 831.

base at the opposite. side of the rail, the dis tance between said jaws beingsuch that they are spread apart when in their normal ap plied position on a rail so asto exert transverse spring pressure directed against the lower portion of the web of the rail and against one vertical edge portion of the rail base. In this connection the invention contemplates the provision of a jaw, portion in the form of a hook in which the hook end provides a tie abutment which extends downa ward a substantial distance from the bottom surface of the rail base. l j

The invention has for a still further object such other new and improved constructions hereinafter described and claimed for carrye ing out the above stated objects and such other objects as will appear from a detailed description of the embodiments shown inthe ac cornpanying drawings. I a 1 c The invention is illustrated in two specific embodiments in the accompanying drawings wherein: p Fig. 1 is a plan view of the base portion of a railroad rail showing a rail. anchor constructed in accordance with this invention applied in its operative position on the rail base and bearing against the cross tie on which the rail is supported. Fig. 2 is a side view of the railanchor device showing one position which itassume Fig. 5iis a side viewofa modifiedlform of the invention showing the anchor, inits fully applied position, the base portion of the rail being shown in section. I

The embodiment of the invention shown in Figs; 1 to 4; inclusive of the drawings con sists preferably of a single bar of resilient metal bent to'provide an under-rail portion" 10 and formed with arelatively large hooked end" portion 11 which embraces the base flange 13at one'side ofthe rail and bears at the extremity of the hookagainstthe lower.

6' portion of the web 14 of the rail. The other surface of the jaw 11 and theupper'surface" V of the rail base flange and to also provide a end of the bar is formed, with a smaller hookedend 15"which is adapted to be sprung overthe upper longitudinalcorner of the rail base when the anchor is in its fully applied position. The bend'16' formingthe large jaw Ilifis, preferably so formed as to providea substantial clearance 17 betweenth'e under versely of the rail Without'coming into con tact with the vertical edge 18 of thera'il base. The saidbend 16 also extends downwardlyf'fro'm the base flange of the rail so as to provide 'asubstantial tie-abuttingpor- 3o I I as indicated in Fig. 2 of the drawlngs. 7

. this position the short jaw l5 is positioned .tion indicated by the reference character 19 f adapted to bear against thehvertical facejof the cross tie at one end of the anchor. In applying the anchor device to the bas-e portion of therail the hook end or 11 is firsthooked over one edge of the base flange E Y under the basezfiange at thewopposite side of the rail. Byapplying pressureto the bend 16, this portion of the anchor; is flexed so as to provide an efiective lengthening of 7' the under rail portion 10 and thereby permits the small 15 to clear the edge of thelrail and snap by the resiliency of the metal into spring:gripping engagement with the upper corner po'rtionof the base flange. When the device is in its fully 'appliedposition the extremity 20 of the'j aw '11 bears against the side face of the web 14 otthe rail at a point adjacenttherailbase, the lower corner of the jaw 11 being rounded to fitthe curved PO11? tion of the base at its juncture with the vertical web 14. The flexing action of the hooked end 16- during the applicationof'the anchor to the rail is such thatiwhen theanchor is applied :thereflex action oithe bend 16 exerts 1 a transverse spring pressure against the web 14 of'therail and againstthe edge and upper surface of the rail base at the oppositeside of the frail. There is also a transverse springgrip produced by reason ofthe downward mba-se; The tie abutting'portion 19, extending a substantial distance below the lower surpressure of the jaw '11 on the inclined upper surface 13 of the rail base and the bearing of the upper-portion of the under, rail por-f tion 1O againstthe bottom surface of the rail face Oftherail base bears firmly against the bottom surface of the rail. 1 The extremity of the jaw 11, it'will be noted, bears against the upper inclined surfaceof theirail base.

at a 'point disposed a substantial distance inwardly from the bottom bearing point 21' thereby providing a. rocking action about a longitudinal axis tending to force the bottom or under rail'portion' 1 0 firmly againstthe bottom surf-ace of the rail jnot only 'a t the. V point 21 bu-t'als o at the point 22 adjacent the small hook end15, The jaw 15% resists any 1 tendency that the downward pressure of the bend J19 againstthefballast' of the roadbed may have to inipar't a reverse rocking movement abo'utthe point 21. The posit on of the large bend16 relative to the extremity. 20 of the jaw' ll and the bearing surfaces of the hookend 15 form in effect a leverarrn which,

when the cross't ie extendsdiagonally across the said base, bears against the CIOSS'tlG adjacent one edge of the rail base whereby the creeping force exerted against the tie through the hook end 16 tends to exert a strong shackle grip on the web 14 and the longitudinalfedge portions of the flange 23 of the rail.

stantiallythe same in construction andoper- I In Fig. 5 a modified embodiment is shown in which the jaw end 11"? and the jaw end at k the opposite edge ofthe rail base are'subation as the corresponding {members of the embodiment shown in Figs. 1 to 4: inclusive.

The modified construction, however, ispro- VlClGCl with a downwardly bowed portion 24 between the bottom bearings 21?, 22 of'the anchor device so as to providea tie abutting surface extending substantially across the bottom surface of the rail base which extends a substantial distance downwardly from the rail. The said tie abutment, by; its engagement with the cross tie. 25;will convert any.

longitudinal pressureon the rail into a shackle gripping action of th'eanchor device on the top and bottom surfaces of the rail base so as to add to the gripping force heretoits fore described. The downwardlybow-ed portion24 provides also an'arcwhichrelieves the bend'16 of a substantial-portion of the flexing strain produced when the anchor is subjected to the shackle grip'transversely ofthe rail.

That is to say when the extremities of the jaw Y 11* and jaw 15 areforced into shackle gripping engagement with the weband edge por tion, respectively, of the rail base. 7 In other respects the embodiment shown in Fig. 5 may be and preferably-is the sameas that sl1ow'nin -Figs. 1"to tinclusive of the drawings. y Y Y 1 'While the invention isdescribed in connec-l tion with two specific embodiments, these em bodiments will readily suggest other modi'fie cations to personsskilled in this. art. It will be understood therefore that the invention is not to be limited to the specific constructions shown and described except insofar as the a claims are expressly'limitedi' Iclaimz A TitlliIIlCljQI comprising an under rail end of said under rail portion adapted to bear against the edge portion of the rail base at the opposite side of the rail.

2. A rail anchor comprising a bar for extending across beneath the base ofa rail, jaw means at one end of the bar for engagement with the top face of the rail base at one side of the rail, and gripping means at the other end of the bar for engaging the top and bottom surfaces of the rail base 'at'locations spaced inwardly from the edge thereof and for hearing against the verticalweb of the rail. 7

3. A rail anchor comprising a bar formed at one end with a j awfor engagement with one edge of the rail base and provided at the other end with hook portion extending around the opposite edge-of the rail base without gripping the marginal portion thereof but bearing against the vertical web of the rail, whereby pressure applied longitudinally of the rail against said hook end of the anchor effects a shackle grip of said jaw and the extremity of said hook upon the edge of the base and the vertical web respectively of the rail.

4. A rail anchor comprising a bar formed at one end with an inwardly projecting aw for engagement with one edge of the rail base and formed at the other end with a relatively long hook portion extending around the opposite edge of the rail base without gripping the marginal portion thereof but bearing against the vertical web of the rail, whereby pressure applied longitudinally of the rail against one end of the anchor effects a shackle grip between the extremity of said hook and said jaw transversely of the rail.

5. A rail anchor comprising a bar for engagement with the bottom surface of the rail base, formed at one end with a small jaw for engagement with the top face of the base flange at one side of the rail and formed at the other end with a hook portion adapted to be forced into spring gripping engagement with the top and bottom surfaces of the base flange at the other side of the rail and into gripping engagement with the vertical web of the rail, the bend of the hook being relatively large :and adapted to flex to permit engagement of the small jaw with the edge of the rail base. i

6. A spring meta-l rail anchor comprising a bar for hearing against the bottom of the rail base, formed at one end with a hook portion adapted to be forced into spring gripping engagement with the top and bottom surfaces of the rail base and formed at the other end with a jaw adapted to be snapped into engagement with the topsurface of the rail base by the reflex of saidhook portions.

7 A spring metal rail anchor comprising a bar for bearing against;the bottom of a rail base, formed: at one .end with a hook gripping engagement with the top and. bottom surfaces of the rail base and formed a tthef other end with a jaw adapted-"to be snapped into engagement with the top surface of the rail base by the reflex of. said hook" portion; the said hook being formedwith clearance adjacent the edge of the railbase anda'dapted to bear against the web of the rail whereby movement of one end of the anchor relative of the rail in-a direction longitudinally of the rail effects a shackle grip of the :device on the web of the rail and one base flange thereof. i

8. A rail anchor comprising a bar extend-. I

ing across beneath the rail 'base'and bowed downwardly intermediate its ends to provide spaced bearing surfaces for'engagement with the bottom surface of the rail base adjacent the opposite longitudinal edges thereof and to form a tie bearing face which ex tends. a substantial. distance below the bottom surface of the rail, one end of the bar formed with a-Yjaw which cooperates with one of said bottom bearingsto grip the top portion. adapted to be forced =intosp'r'ing and bottom surfacesof-the rail'base at one I side of the rail andformed at the otherend with a hook shaped portion providing a downwardly bowed tieabutting portion ad jacent. the end of the anchor and providing also aninwardly projecting jaw for bearing against the upper inclined surface of the rail base and the vertical web of the rail, the, distance between the extremity of said hook and said first mentioned jaw being normally less than the distance between the surfaces engaged thereby, whereby the said 6X? tremity of the hook and the said jaw exert spring pressure transversely of the rail when the anchor is in its applied position.

9. A rail anchor comprising a body provide'd at one end with a base flange embracing hook whichbears at its extremityupon the fillet between said flange and the vertical web ofthe rail, which hook includes a downwardly extending tie abutting portion ,pro viding a substantial clearance between the hook and the bottom marginal surface of the base flange embraced, means at the other end of the body for embracing the other edge of the rail base, providedwith a por tion overlying the upper. corner of said edgeto prevent upward pressure exerted against said tie abutment from displacing said edge engaging means. v

10. A rail anchor comprising a body provided at one endwith a base flange embracing hook which bears at its extremity upon the fillet between said flange and the vertical web of the rail, which hook includes a downwardly extending tie abutting portion providing a' substantialclearance between the hook and the bottom marginal surface ioo other sideofthe-railgwhich shoulder is sopositioned relative to the :endf'of, said hook} Oriana: base flange embraced, a shoulder a;

' the other. end ofthe body for engaging the vertical edge portion of the rail-base at the that it is necessaryto-dis'tort' a'portion or" the. anchor in forcing the shoulder to its. ap-

V pliedposition; and means for preventing upward pressure'exerted against said abutment 11v" p cin said shouldeii- I I formed at opposite ends vwithrailrengag-ing rail anchor comprising a b ody ,means which wheniin their applied positions exert a spring grip diagonally through the base portion-of: the railyone' of said means being formed to provide a tieabuttingipora I tion'which extendsdownwardly a substantial distance below the bottom surface' of theyra-il base and the other of said means being provided with a portion overlying the upper-corner of the rail base to prevent displacement of said-last named. means during I pressure against the {presence of upward said tie abutting portion.

formed at opposite ends with rail engaging means which when in their applied positions exert 'aspring grip diagonally through the base from the'fillet-between the base and V lower-corner ofthe baseat the other-side of .the rail, one of said means being formed to provide a tie abutting portion which e-X- l tends downwardly a substantial distance befi =35 the other of said mea'ns being provided with f 'neath the bottomsurfa'ce of the rail base and 13. A rail anchor comprising va body its fully applied positionlfl 4 1 '12. A 'rail anchor. comprising a body transversely ofthe rail in" forcing the "an? chor transversely of the, rail'to its normal grippingposition, the extremity of said hook being, formed to bear against the verticalweb of the rail when the anchor is in 1 5 A rail anchor ,for'application-ito j a' rail 7' by; movement transversely of the rail'rfrom one side thereof andcomprising a" body por-' tion provided at one end L with; means for engaging over the upper; corner portion" of the rail base flange at one s de of .the rail and provided at theotherend with a rela tively long resilient hook portion formed to l V provide clearance betweenyth'e inner face of, the hook and the -a'djacent edge of the rail base and. formed; at the extremity of the hook with abearingfsurface which is forced by theresiliency of the anchor into gripping engagement with the ,vertical webo-f' the rail. 1 p v l FREDERICK vAVPR-ESTO N.

vertical web at one side of the rail to the. i

formed at o'pposite ends with rail-engaging l means'which when-intheir applied positlons exert a spring grip diagonally through the base portion of the; rail,one; of said means being formed to provide a tie abutting portion which extendsdownwardly asubstan- I tial distance beneath the bottom surface of a the rail base, and the other of saidmeans 7 I andpositioned relative to the other parts of being'provided with a portion so formed the anchor as toprevent displacementof said last named means during the presence of upward pressure against said tie abutting 'portion.

1 1i Af rail anchorcomprising abar hav ing a portion for hearing against the bet- 1 tom surface of the. rail and formed atone end with a gripping means for engaging over the upper corner portion: of the rail p base flange at one side of the rail, and

7 formed at .the other end with a resilient.

hook portion for. embracing "the rail base: flange at; the other side of the rail'and adapted/to be 'flexed both verticallyand