US1021388A

US1021388A - Anticreeper for railroad-rails.

Info

Publication number: US1021388A
Application number: US64350811A
Authority: US
Inventors: David F Vaughan
Original assignee: Individual
Current assignee: Individual
Priority date: 1911-08-11
Filing date: 1911-08-11
Publication date: 1912-03-26
Anticipated expiration: 1929-03-26

Description

D. F. VAUGHAN.

ANTIGREEPER FOR RAILROAD RAILS.

APPLIQATION FILED AUG. 1 1, 1911.

1,021,388. Patented 111111126, 1912.

2 SHEETS-SHEET 1.

D. P. VAUGHAN. ANTIGREBPER FOR RAILROADRAILS.

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APPLIOA'IION FILED AUG. l1, 1911.

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' Q @ff/7 UNITED STATE DAVID F'. VAUGHAN, 0F HADDONFIEI'JI), NEW JERSEY.'

ANrIonEEr-EE ron. RAILROAD-RAILS.

Specication of Letters Patent. Patented-Mar. 26, 1912.;

Application led August 11, 1911. Serial No. 648,508.

To au' 'whom t may concern Be it known that l, DAVID F. VAUGHAN, a citizen 'of the United States, residing at Haddonfield, in the county of Camden and State of New Jersey, have invented certain v new and'useiul Improvements in Anticreepers for Railroad-Rails, of which the following is a specification.

This invention, relates to antioreepers for railroad rails.

rlhe object of the invention is to provide a novel anticreeper which will eifectually prevent the creeping of rails, which may be readily applied to or removed .trom rails, which is provided lwith parts pressed into gripping position upon the rail by a spring part or member in tending to assume a, position from which it was sprung, and which will increase vits gripping act-ion with any tendency of the rail to creep.

The invention consists in the provision of a spring part and a pair of jaws, the spring part exerting pressure in a direction length vwise ot'- the rail and pressing said jaws' toward each other and into engagement with the rail base, or the spring part pressing' said jaws down upon the top of the rail base, or both, to effect the gripping action.

The linvention consists further in constructing the parts so that any iendency of the rail to creep will assist the spring in forcing the jaws toward each other and cause the anticreeper to increase its grip upon the rail.

The invention consists further, in arranging the spring to lock the jaws, or two members on which the jaws are' formed, together, in addition to pressing the jaws into engagement with the rail base.

The invention consists further in 4arranging the spring .to lexert a pressure l1n one direction lengthwise of the rail against a part engaging a stationary part of the road bed and to exert a pressure 1n the reverse direction against two rail gripping jaws and force them into engagementv with the rail;

and the inventioii consists further in various novel features of construct-lon and combinations of parts hereinafter fullv described 'and particularly claimed. v

In the accompanying drawings, illustrating my invention: Figure 1 is a side elevasurfaces.

tion of a portion of a cross tie and a railroad rail thereon, provided with my improved anticreeper; Fig. 2 is a vertical sect-ion, on line 2-2 of Fig. 1. Fig.- Sis a bot-tom view of the parts shown inF ig. l. Fig.. 4 is a section through the lower portion of a railroad rail showing positions of parts of the anticreeper while being applied thereto. Fig. 5 is; a section through .one of the clamping members, on linel 5 5 of Fig. 4. Fig. 6 is a view of'the spring, detached. Fig. 7 is a bottom view of aA portion of a railroad rail, and cross tie showing a modified form of the anticreeper applied to the rail. Fig. 8 is 'aview of the spring, detached, for the modification shown in Fig. 7. Fig. A9 is a section through one of` the clamping members on the same' line that the section shown in Fig. 5 is taken, showing a modioation of the spring engaging 3 designates a portion of a railroadcross tie-and 45a railroad rail of well known construction` including the base 6.i Thelcross tie forms a stationary vpart of the" road bed which supports the rail 4 and over which the rail tends to creep under the well known conditions.

My improved ant-icreeper is "applied to the rail base 6 adjacent the cross tie 3 and is of the followin construction: Arranged be# neath the rail 4 are two members: 7 and 8 the outer ends-of which are provided with jaws 9 and 10,' respeotively, which embrace and extend over the edges of the rail base 6. The inner ends .of the members 7 and 8 are -'provided with off-set portions l1 and 12 which overlap each other, as shown, permitting the t-ops of themain bodies of the members 7 and 8 to be substantially in the same horizontal plane and permittingl the bottom `portions of the members 7' and 8 to extend below the. otf-set

portions

11 and 12.

- The'of-set, inner end 1l of the member 7 is provided with a downwardly-extendingv iplivot pin 13 which extends through and is tted to an opening in the oH-sct-inner'end 12 of the member 8, pivoting the members 7 and 8 together and permitting them to move aboutjthe vertical axis of ther-pin 13A in a manner to move the jaws 9 and 10 to- I ward eachother and in a direction substantiallyy lengthwise of the rail 4 and into en gagement 'with the of the ruil base (3.

When herein I speak of forwardly, I

."'mean in the direction of the arrows, shown -in the drawings, or in the direction from the anticreeper to the cross tie, and when herein I speak of rearwardly, lf mean in the reverse direct-ion.

Extending rearwardly from the lower portions of the members 7 and 8 are Hanges 14 and 15, respectively, the upper faces of which are inclined to converge downwardly, as shown; and the

rearward faces

16 and 17 of the members 7 and 8, above the flanges 14 and 15, respectively, are inclined to con verge forwardly, as shown, for a purpose presently explained.

The lower end of the pivot pin 13 is provided with a reduced port-ion 18 which ex members 7 and 8.

tends below the overlapping ends of the members 7 and 8. The reduced portion 18 is provided with a perforation through which extends a spring pin or key 19 which also extends transversely of the rail 4, and

is engaged with the tops of the iianges 14` and 15 and with the faces 1G and 17 of the This pin is normally straight, as shown in Fig', 6, when removed from the other parts of the anticreeper. When, however, the parts are assembled, as shown in'Figs. 1, Zand 3, the central portion of the pin 19 presses upwardly and rear wardly upon the pivot pin 13 or the bottom of the inner portion of the member 8or both, theend portions of the pin 19 press forwardly against the faces 1G and 17 of the members 7 and 8, and the end portions ofthe pin 19 Ipress downwardly upon the flanges 14 and 15.

The rearward pressure of the pin 19 against the pivot 13 andthe forward pressure of the ends of the pin 19 against? the

faces

16 and 17 forces the central portions of lthe members 7 and 8 rearwardly and forces the jaws 9 and 10 on the outer ends of the members 7 and 8 forwardly and into g 4pin 19 against the cent-ral, overlapping por-` gripping 'positionagainst the edges ofthe rail base 6; and the upward pressure of the tions of the members '7 and S, and the downward pressureof the ends of the pin 19 against the flanges 14 and, 15 forces said overlapping portions up against the bottom of the rail. 4 and forces the jaws 9 and 10 down 'upon the top of the rail base 6, holding said'` members together and the jaws thereof down upon the rail base. I

. The inner portion of the member 8 is provided-,with a forwardly-extending part or abutment 20, the forward face of which is arranged adjacent and is. adapted to abut against the cross tie 3.

When thefparts are assemliled,` as shown in Figs. 1,'2 and 3, andas hereinbefore described, the outer eudstofthe members? and 8 and the jaws 9 and l() are maintained in spaced relation to [he cross lio I- by the part 20. lShould the rail 1 ai'leinj't lo creep fon wardly or in the dirci-tion ot' lhe arrows, over [he cross tic 3, the forward movement of the part f2() and the pivote-d inner ends of the n'ien'ibers 7 and 8 will be prevented by the engagement of the. pari Ll() with the cross tie 1:3, and the rail, in creeping forwardly, will carry the aws S) and 10 with it, and immediately, upon the initial creeping movement of the rail 3, the jaws 9 and 10 will tend to move toward each other thereby iirinly gripping the rail and preventing 4creeping thereof, and increasing the gripping action of the jaws upon the rail `with the increasing pressure tending to cause the rail to creep.

In assembling the parts of the anticreeper and applying the anticreeper to the rail, the jaw 9 is first hooked over one edge of the rail base (S and the body of the member 7 is moved up against the bottom of the rail 4, in the position shown in Fig. 4i. The jaw il() is. then hooked over the other edge of the rail base G and the member 8 is moved up into engagement with the member 7 and the bottom of the rail 4, the pivot pin 13 entering the opening in the member 8 during the upward movementof the member. This being done, the pointed end of the spring pin 19 is inserted into the perforation in the extension 18 of the pivot pin, the body of the pin 19 isi-placed over either the flange 14 or the flange 15 and the pin 19 is driven through the perforation and over the other flange unt-il about the central portion of the pin 19 reaches the pivot pin 13. As the pin 19 is driven in, it assumes the curved form shown in Figs. 1 and 3 and exerts the pressure upon the part-s of the anti- Creeper, hereinbefore described.

The spring pin may be driven into place from either side of the rail, and when in place, as shown in Figs. l, 2 and 3, the pin is prevented from accidentally moving out of place through the perforation in the part 18 by

stops

21 and 22 projecting rearwardly from the outer ends oflthe inclined faces 1G and 17, respectively, the

stops

21 and 22 hav ing beveled faces and projecting sufficiently to prevent accidental longitudinal displaceznentof the pin 19, :in either direction, but

not far enough to prevent Vthe Ipin 19 from two inclined surfaces 15 and 17 for the-mem-l ber 8, I may employ a single .inclined pinengaging surface for each member, which single surfaces will` incline downwardly and rearwardly .and will converge forwardly,

izo

thus causing the ends of the spring 1) to exert forward and downward against the inenibers T and 8.

't have illustrated a transverse section through the niernher 8 showing at '22% one ot' the single ine-lined surfaces.

In the modification shown in Fig; i', the construction is the same as that sliown 'in Figs. '1, 2 and 3, except as follows: in lieu of the inclined rearward faces 16 and 1 7. the members 7 and S are provided with rearward fares 24 and 25 which extend suh- 'stantially parallel'to the nieiiibers, and no Hangers 14 and l5 are provided. and in lien oit the

round spring pin

19,11 fiat or square spring pin 2G is provided which extends through a siinilarly shaped perforation in eti i ner to force the elanipii'ifr jaws toward eat-.h

the extension 18 of the pivot pin 13 to prevent turning of the Spring 2G. The spring Q6 is normally curved. assliown in Fig. and when driveii'inti'i place, as shown in *Figa 7, the pin 26 is straightened to soine degree eausing its ends to press against. the surfaces 24 and 25 and press the outer ends of the ii'ieinbers 7 and 8 forwardly and the awe thereof into grippiinY position against .iie rail white the contrai portion l. the spring @in exerts a rearward ure agaii'istI the pivot 13, in. this nioditltation the spring 26 does not exert. any upward or downward pressure against the members 7 and 8.

'In-antioreepers it is desirable. that the Tarts shall 'ne constructed and related to each other so that any)7 tendency of the rail to creep will toreo the parts lirinljiT against the rail to grip the saine; it is also desirable that the parts ot the anticieeper be n'essed into gripping engagement with the rail by a spring part so that the antiereeper will be in constant readiness for action nader all conditions and so that the antioieeiier may4 not Work loose or shift its position upon l the rail due to expansion and oontraetiou ot the rail and the parts of the anticreeper and d ue to the jarring of the rail by the 'passage of oar wheels thereover. To aeeoiiipiish the viatter desirable characteristic I have provided the spring acting in the novel inanother and against: the' ail by a pr ure exerted in a direction lengthwise of the rail andI in the direction againstwhieh it is desired to preifent the rail from creeping. or acting in the novel manner to press the' jaws down upon the top of the rail base while ,pressing a part of the antiereeper 'up against the bottom. of the rail or bot-h, These are the essential features which characterize in;T invention and to these I broadly lay elaiin; and. in this broad aspect et' the invention the specific means for connecting the jaws together is capable bf wide variation without ,i departing from 1n y invent-ion.

I claim;

In l* ig. 9,-

and a stationary part of a road bed, of an antiereeper comprising jaws engaging the lsides of the rail, andv iiieaiis for forcing said i ]aws toward each other and against the rail, said n ieans including a spring exerting pressure in direction' longitndii'ially of the rail, said antioreeper having a part engaging said stationary part.

The combination with aV railroad rail and a stationary part of a road bed, of an aiitiereeper comprising jaws engaging the sides of the rail, means for fore-ing said jaws toward each other and against the rail, said iueans ii'ieliidiiig a spring exerting presf sure in a direction longitudinally of the rail, and a part engaging said stationary part and connected to the 'antioreeper beneath a position between the sides of the rail..

f3. The combination witha railroad rail and a stationary part of a road bed, of an antiereeper comprising two members hav-V other side ot the rail, and a spring pressing` said members into engagement with each other and prsalg field jaws against said rail, one of said members having a part 'engaging said stationary part.

e. The combination with a railroad rail and a stationary partofa roafd bed, of an antioreeper comprising two separable members having spring-engaging parts, a jaw on one nieinber engaging one side of the ra'il7 a on the other member engaging the other side of the rail, and a spring engaging said spring-engaging parts and forcing said jaws againstthe rail, one of said members having a part engaging said stationary part- The Combination with a railroad rail and a stationary part of a road bed, of an aiitiereepe'r Comprising two separable menibers having spring-engaging parts, a jaw on one ineintier engaging one side-otl the rail, a jaw on the other i'iieinher engaging the other side of the riiil, and a spring exerting pressure against one of said members in two directions opposite to each other and exertiing pressure against. the other of said ineinbei"l in one. dieetioii and forcing said jaws against the rail, one ot i, id members having a part engaging said stationary part.

rlhe ooi'iiliii'iation with a. railroad rail and a stationary part. of a road bed1 of an antiereeper comprising two separable ineinbei's having parts preventing separat-ion of said inenibers when engaged with each other, a jaw on one n'ieinher enfl"ing one side vof the rail, a jaw on the ot'ht.: member engaging the other side of` the rail, one of said iiien'ihers having a part. engaging said stationarjt7 part, and a spring exerting pressure against one of said -meiiibers in two directions opposite to each aber and exerting pressure against/the other of said members in one direetion and forcing said jaws against the rail.

-7. The combination with a railroad rail. and a stationary part of a road bed, of an anticreeper comprising two separable members having parts preventing separation of said members when engaged with each other, a jaw `on one member engaging one side of the rail, a jaw on the other member engaging the other side of the rail, and a spring locking ,said members; together' and forcing said jaws against the rail, one of said members having a part engaging said stationary part.

8. The combination, with a railroad rail and a stationary part of a road bed, of an anticreeper comprising .jaws engaging the sides of the rail, means extending beneath the rail and connecting said jaws and forcing said jaws' toward each other and against the rail, said means including a spring fore ing said jaws in one direction lengthwise of the rail and forcing a part of said connect ing means in the reverse direction, said anticreeper having a part engaging said stationary part and causing the tendency of l the rail to creep to increase the pressure of the jaws against the rail.

9. The combination with a railroad rail having a base, and a stationary part of a road bed, of an anticreeper comprising two members extending beneath the rail base and having parts engaged with each other, one of, said members having a part engaging said stationary part, a jaw on one member engaging one edge of the ra-ii base, a on the other member engaging the other edge of therail base, and a spring pressing one of said members up against the'bottom of the rail base and pressing said jaws down upon the top of the rail base.

10. The combination vwith a railroad rail having a base, and a stationary part of a road bed, of an anticreeper comprising two members pivoted together beneath' the rail base, one of said members having a part engaging said stationary part, a jaw on one member engaging one edge of the rail base, a jaw on the other-member engaging v the other edge of the rail base, and a spring pressing one of said members up against the bottomof-'the rail vbase and pressing said jaws down upon the top of the rail base.

1-1. The combination with \a railroad rail and a'stationary part of a road bed, of an anticreeper comprising two members pivoted together beneath the rail, a jaw on one 'member engaging one side of the rail., a jaw on -the other member engaging the other side of the rail, one of said members havlng` a part engaging said stationary part,

and' a spring pressing said jaws against the 1 rail.'

' 12. The combination with a railroad rail4 and a stationary part of a road bed, oit an: anticreeper comprising two members piv oted together beneath the rail perrmtting the outer portions thercoi' to move on said pivot in the direction in which it is desired to prevent the rail from creeping a jaw on one membei.' engaging one side of the rail7 a jaw on the other member engaging the other side of the rail, a spring forcing said jaws in said direction. and against the rail, and a part engaging said stationary part and connected to the anticrecper beneath a position between the sides oit the rail.

13. The combination with a railroad rail and a stationary part of a road bed,'o.t an

anticreeper comprising two members pivotn 4 vand a stationary part of a road bed, olf an anticreeper citing;k rising two members pivot ed together beneath the rail permitting the outer portions thereof to move on said pivot in the direction in which it .is desired to pre vent the rail from Creeping, a jaw on one member, engaging one side of the raii, a.

jaw on the other member engaging the other side of the rail, a. spring exerting 'pressure in said direction against both of said :nenn bers and pressing said jaws against the rail and exerting pressure in a reverse direction against one of said members, and a part engaging said stationary part and' connect ed to the anticree er beneath a position between the sides o the rail.

15. The combination with a railroad rail i and a stationary part of a' road bed, of an anticreeper comprising two members having parts engaged with each other, a on one member engaging one side of the rail, a jaw on the other member engaging the other side ont the rail, one of said members having a part engaging said stationary part, and' a spring exerting pressure in one direction pressing said members into engagement with each other and exert-ing pressure, in a reverse direction pressing said jaws against said rail.

1G. 'The combination 'with a railroad rail and a stationary part of a road bed, of an. antic'reeper comprlsing two members havingV parts en aged 4with each other; a jaw Von lili ias

cnemem er engaging one side of the rail,"

and exerting pressure in a reverse direction against one of said members, and a part engaging said stationary part and connected -to the anticree er beneath a position between the sides o the rail.

17. The combination With a railroad rail4 having a base, and a stationary part of a road bed, of an anticreeper comprising two members pivoted together beneath the rail base, one of said members having a part engaging said stationary-part, a jaw on one member engaging one edge of the rail base, a. jaw on the other member engaging the other edge of the rail base, and a spring ressing said jaws toward each other and into engagement, with the edges of the rail base, saidspring also pressing said jaws down upon vthe top of the rail base.

18. VThe combination with a railroad rail 4having a base, and a stationary part of a vroad bed, of an anticreeper comprising two members pivoted together Vbeneath the rail permitting the outer portions thereof to move 'on said pivot in the direction in which it is desired to prevent the rail from creeping, one ofsaid'men'ibers having a part beneath a position between the edges of the rail base and engaged with said stationary part, a jaw on one member engaging one edge of the rail base, a jaw on the other member engag- :ling the other edge of the rail base, and a spring forcing said jaws in said direction and against the rail, said'spring also press ing said jaws down upon the top of the rail base. f

19. AThe combination with a railroad rail having ajbase, and a stationary partof a road b ed, ofian anticreeper comprising twomembers pivoted 4together beneath the rail base, one ,of said members having a1 part en# gaging said stationary part, a jaw-on one member engaging one edge of the iail base, a jaw on the other member engaging the other edge of the rail base, and a spring eX. erting pressure in one direction against Aone of said members and in a'reverse, direct-ion 1 against both of said members and pressing said jaws against said rail, said spring. also pr s'sing said jaws down upon the top of the rai base..

20. The combination with a railroad rail having la base, and a stationary part of a road bed, ofan anticreeper comprising twoA members pivoted together beneath, the rail permitting the outer portions thereof to move on sa`d pivot in the direction lin which it is `desired to prevent the rail from creeping,

one of paid members having apartbeneath a posi on between theedges' of the rail base and e .gaged with said stationary part, a javLo'none member engaging one edge of A-the rail base, a jaw on the other'member engaging theother. edgeofth jaws against the rail and exerting pressure `in a reverse direction against one of said and a stationary part of a road bed, of an anticreeper comprising a member having an opening therein, a member having a pin ex tending through and beyond said opening pivotally connecting said members together, one of said members having a part engaging said stationary part, a jaw .on one member engaging one side of the rail. a jaw on the other member engaging the other side of the rail, and a spring extending through said pin and locking said members together and pressing said jaws against said rail.

22. The 'combination with a railroad rail and a stationary part of a road bed, of an anticreepei' comprising a member having an opening therein, a member having a pin cxtending through and beyond said opening and pivotally =connecting said members together permitting the outer portions thereof to move on said pivot in the direction in which it is desired to prevent the rail from creeping, one of said members having a part beneath a position bet-Ween the edges of the rail base and engaged with said stationary part, ajaw on one member engaging one side of the rail, a jaw on the other member engaging the other, side of the rail, and a spring extending through `said pin and locking said members together and pressing said jaws-in said direction and against said rail.

23. The combination witha railroad rail and a stationary part of' a road bed', of an anticreeper comprising a member having an opening ther'eim'a member having a pin eX- tendingthrough' and beyond said opening pivotally connecting said members together, one of said members having a part engaging said stationary part, a on one member engaging one side of the rail, a jaw en the other member engaging the other side of the rail, and a spring extending through said pin and locking said members together, said spring exert-ing pressure in one directionagainst said pin and exerting pressiire in a reverse direction against both said members and pressing said jaws against said rail. l

24. .The combination with a railroad rail and a stationary part of a road bed, of an anticreeper comprising a member having an opening therein, amember having a' pin exf tending through andV beyond said opening and .pivotally connecting said members together permitting the outer portions thereof i to move on said pivot' in the direction in vwhich it is desired-to preventA the rail from izo creeping, one of said members having a part beneath 'a position between the edges of the r-ail. .base and engaged with said stationary part, a jaw on one member engaging one l' I y side-ofthe rail, a jaw on the othermember 1:30

s pring engaging the other'side of the rail, and a spring extending through said pin and locking said members together, said spring exerting pressure against said members in said direction pressing said jaws against the rail andr exerting pressure in a reverse direction against said pin. f

25. The combination with a railroad rail having a base, and a stationary part of a road bed7 ot an anticreeper comprising a member having an opening. therein, a member having a pin extending through and bevond said opening pivotal y connecting said members together, one of said members hav-A ing' a part engaging said stationary part7 a jaw on' one member enga-ging one edge ofy the rail base, a jaw on the othermember 4engaging the other ed e of the rail base, and

a spring extending tirongh said pin and locking said members together and pressing said jaws against said rail, said spring also presssing saidjaws down upon the topot the rail base.

26. The combination with a railroad rail having a base7 and astationary part oa road bed, of an an'ticreeper comprising a' member having an opening therein, a mem ber having a pin extending through and be- -vond said opening and pivotally connecting said members together permitting the outer portions thereof to move on said pivot in the direction in which it desired to pre-` vent the rail from creeping, one of said members having a part beneath a position between the edges of the rail'base and engaged with said stationary part, a jaw on one member engaging one edge of the railbase, a jaw on the other member engaging the other edge of the rali base, and a spring extending through said pin and locking said members together and pressing said jaws in said direction and against said raii, said also pressing said jaws down the to of therail-base, t

27. Ihe combination with a railroad rail having a base, and a `stationary part of a road bed, of an anticreeper comprisinga member having an opening therein, a member having a pin extending through and beyond said opening pivotally connecting said members together, one of said members having a part engaging said stationary part, a jaw on one member engaging one edge of the rail base, a jaw on the other member engaging the other edge of t-he rail base, and a spring extending through said pin and locking 'said members together, said spring i exert-infr rcssure in one direction aoainst upon said pin and exerting pressure in a reverse direction against both said members and pressing said jaws'against said rail, said spring also pressing said jaws down uponl the top of the rail base.

28. The combination with a railroad rail having a base, and a stationary part of a road bed, of an anticreeper comprising a l member having an opening therein?, a mem-` ber having a pin extending througirand beyond said opening and pivotally connecting said members together permitting the outer portions thereof to move on said pivot'dn the direction in which it is desired ,to prevent the rail from creeping, one of said members having a part beneath a position between the edges of the rail base and engaged with saidl lstationary part, a jaw on one member engaging one edge of the raily base, a jaw on the Aother member engaging the other edge of the rail base, and aspring extending through said pin and locking said members together, said spring exerting pressure against said members in said direction pressing said jaws against the rail and ex erting pressure in a reverse direction against said pin, and said jaws down upon the top of the rail base. f

29. The combinat-ion with a railroad rail,

Aand a stationary part of a road bed, of an anticreeper comprising jaws engaged with the sides of the rail, means for connecting said jaws together, a spring having its sides engaged with parts of the anticreeper' and forcing a part against the rail, and a stop adjacent. one vend of the spring preventing accidental longitudinal displacement thereof, said anticreeper having apartv engaging said stationary part. l j

30. The combination with a railroad rail and a stationary part of aI road bed, of an anticreeper comprising jaws engaged with the sides of the rail, means for connecting said jaws together, a spring having its sides engaged with parts of the anticreeper and forcing a part against the rail, and ast-op having a beveled face adjacent one end of 1 the spring preventing accidental longitudi nal displacement of the springend permitting the spring to be removed by forcesaid anticreeper having apart' engaging said stationary part. j

In testimony whereof I atlix my signature in presence Aof two witnesses.

DAVID F. VAUGHAN. `VVit-nesses:

S. I. HARPER, A. V. GROUPE.

spring also pressing said