US930708A - Anticreeping device for spring-frogs. - Google Patents

Description

Patented Aug. 10, 19Q9.

-G. W. WHITEMAN. ANTIGREEPING DBVIGE POR SPRING moss.

APPLIOATION FILED MAY 22, 1909.

, To all whom it may concern:

' upon the loose rail a't all times and resilient in such a manner that a portion of said in- GEORGE W. WHITEMAN, 0F PHILADELPHIA, PENNSYIIVANIA.V

' .ANTICREEPING-DEVICE FOR SPRING-FROGS.

Speccatoniof Letters Patent.

,Patented Aug. 10,1909.

Appnauon mea may 2 2, moa serial No. 497,602.

Be it known that I, GEORGE W. WHITE? MAN, a citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and: useful Anticreeping Device-for Spring-Frogs, of which the following is a specification.

My present invention consists of a novel construction of an anti-creeping device for spring frogs, which is adapted to keep the loose rail in position and prevent it from creeping ahead and exposing the point which Would allow the fiange of the Wheel to get in the Wrong side of the point.

It further consists of a novel construction of an anti-creeping device, which, in the present instance, for purposes of illustration, I have shown as having one portion thereof fixedly secured to the loose rail, While the other portion thereof is iixedly secured to the fixed rail, means being also provided for eX- erting a yielding pressure against the loose rail, whereby the same is maintained xnormally in its proper position and is automatically returned to its normal position when moved therefrom. l

'It'further consists of a novel construction of an anti-creeping device for spring-frogs, comprising a p urality of members fixed to each rail, said members being correlated and arranged in such a manner that the anticreeping device will have the proper efect means being employed for exerting a lateral pressure againstthe loose rail atan-angle to the base of the rail in order to prevent undue lifting of the loose rail when the train is passing through the frog.

lt further consists of a novel construction of an anti-creeping device wherein a filler block is fivedlyv secured to one of the ffXed rails and a plate or angle iron having an 1nclined face is fixedly secured to the loose rail clined face is always in engagement With the fillerblock, thereby preventing the creeping oi' the loose rail so that such rail always has the same relation with respect to the point of the frog.

It'further consists of other novel features of f construction, all as Will be hereinafter fully set forth. For the purpose of illustrating niy invention,4 I have shown in tie accompanying drawingsone .form thereof which is at resent preferred byf me, since the same has' een found in practice to give satisfactory andreliable results, although it is to be understood bodyingFmy invention in conjunction therewith. ig. 2 represents a lan View on an enlarged scale of a springy fgog showing my anti-creeping device.- Fig. 3 represents a section on lineas-, Fig. 1. sents a perspective view of 'a portion of the anti-creeping device in detached position.

Similar numerals of reference indicate correslponding parts in the figures. eferring to the draw1ngs-z-in a copend- 'ing application Serial No. 497,602 filed on even date with the present -application I have described and broadly claimed a novel construction of acushioning device for the loose vrail of spring frogs, wherein means is provided for exerting a yielding. pressure against the `loose rail at an angle to the 'base' thereof and in my present invention I have preferred to show this type of a cushioning device Ain conjunction therewith but have deemed'it unnecessary in the present application. to give a detailed description of the construction thereof, since the same per se j forms no part'of my present invention, and slnce reference may be had to my co-pending application, above referred to, for a detailed description and operation thereof. It is of course to be understood that other types of l cushioning devices may be employed.

In my present device the spring frog c onsists of the rails 1, 2 and 3, which are xedly secured in lposition in any suitable manner 'and the loose rail 4, whichis movably mounted in any suitable manner. I

5 designates the point of the frog.

loopb 6 designates a filler block intermediate the web of the rail'l and the rail 2 and in proxirnity to the point 'of the frog.`

7 designates suitable fastening devices, such as bolts or their equivalents, which pass 65 .Y frog showing an anti-creeping device eml ed l through the rails 1 and 2 and through the fillerbloek 6, said bolts being provided with suitable Washers 8 and nuts 9, whereby the parts are properly secured in their assemoose rail 4 means of suitable fastening devices 16. The member 12- is deflected upon itself in the present instance Ato, form an extension 17 provided With an inclined contact face 18, it being noted that the forward end of the extension 17 is beveled or rounded, as is indicated at 19.

20 designates a plate fixedly supported in any suitable manner and to which the rails 1 2 and 3 are rigidly secured and on which the loosevrail 11 is laterally movable, said loose rail 4 being provided with a filler block .4 21 against which is adapted to abut a spring actuated plunger 22, which is carried in a casing 2,3, secured to the plate 20 in any suitableV manner, as will be readily unde'stood by reference to my priorapplication, to which I have hereinbefore referred. The spring actuated plunger 22 exerts a yielding pressure against the loose rail 4, whereby when said rail is moved against the tension of the spring actuated plunger 22, tlfe latter will return the loose rail to its nor al position after the train has passed through the frog.

Theo eration of my novel device .will now be readi y understood by those skilled in this art, since it; will be apparent that owing to the engagement'of the extension 17 of the member 12, fixedly secured to the loose rail 4, with the inclined facie 10 of the filler block 6 which latter is rigidly secured to the fixed rail 1, that the creeping of the loose rail 4 will be positively prevented so that the point same relative longitudinal position during its lateral movement', so that there will be no binding ofthe members 12 and (l, during such lateral ymovement of the loose rail 4, it being understood that when the loose rail 4 is being moved'tmvard the casing '2i-l, the

I spring actuated plunger 22 automatically rcturns the loose rail to its normal position.

ln order that thc extrusion .17 may have a "55 maximum movement with respect to the end of the filler block (i, the saine may be recessed, if desired, as indicated at 23, the effect of which is evident.

ln order to more clearly .indicate the feature of the inclined faces of the members 12 and 6 l have shown a right angle, as indicated by dotted lines and arrows in Fig. 2, it b .ing of course understood that the amount of inclination given to the members l2 and (i respectively may be varied, as desired, in aecordance ufitlrthe. requirements niet' with in practice. i

lt is to be understood that where in the claims i refer to a block l intend the term block to be construed broadly as covering a member of any desired construction, which, is fixedly secured with respect to the rails l and 2.

It will now be apparent that I have devised a novel and. useful construction of an anti-creeping device for spring frogs, which embodies the features of advantage enumerated as desirable in the statement of inven- .tion an'd the foregoing description, and

while l have in the present instance shown :u'ulylescribed a preferred embodiment thereof, which in practice will give satisfactory and advantageous results, it is to be understood that the same is susceptible of modifications in various particulars Without departing from the spirit and scope of the invention or sacrificing any of its advantages.

Having thus described my invention, what l claim as new and desire to secure by Letters Pz'ttent, is:

1. ln an anti-creeping device for spring frogs, the combination with the fixed rail, and loose rail of thc frog, of a filler block secured to the fixed rail, and means carried by said loose rail and always in engagement with said blockto prevent longitudinal movementof the loose rail.

2. In an anti-creeping device for spring frogs, the combination With the fixed rails and the loose rail of the frog, of a block having an inclined end and secured to the fixed rail, and a member fixed to the loose rail and engaging said inclined end to prevent longitudinal movement of the loose ail.

Il. fn an anti-creeping device for spring frogs, the combination with the fixed rails and the loose rail of the frog, of a block fixed to one of the fixed rails and having an inclined contact face, and a bar fixed yto the loose rail and having an inclined contact face (ro-acting with the contact face of said block.

4. Vln an anti-creeping device for spring frogs, the combination with the fixed rails and the loose rail of the frog, of a block fixed.

to the fixed rail and having an inclined contact face, and a bar fixed to the loose rail and having an` inclined contact face (5o-acting with the contact face of said block, in combination vwith amushioniug device for the loose rail.

in an anti-ci'ee] ilzg device for spring lill,

dinal iiioifenient of tlie loose rnil and tliepoint ol tlie frog.

(i. .lii un finti-creeping device lor spi-ing` frog-s, Llic coiiibinzitioii with the lined i'znls :ind (.lie loose i'ziil. ol' :L block secured to one,

ol tlio fixed mils und li. bitilixed to tlie loose rziil and having' :in extension :ilwoys in eii- ;zigeinciit Yvillisziid block to prevent longitudinal iiiovoiiiciit olI the looso rail.

7. lo :in :mii-creeping device lor spring frogs, tlie coiiibiinitioii with the fixed rails and tlie loose i'ziil, ol' o. block secured to one of tlie'llxcd rails, :i bei' fixed to the loose rail ziiid lmviiiji in extension always iii eng-ligoiiicnt witli seid block to prevent li'ingitndiiilil nioveinent of the loose rail, in combination with :i plzite'to Wliioli the fixed rails are secured und oi'i which tlie loose rail is movable, :ind a. cushioning device iixedly supported y:ind co-iictingvwitli the loose rail.

S. .ln am finti-creeping' device for spring frogs, glie combination with the lixed rails ainil the loose i'ziil7 of zi block secured to one of tlie :lixed mils, :i bor fixed to the loose mil :ind liliviiig :in extension provided with :in `inclined contact face :ilwztys in engagement with said block to prevent longitudinal inovoiiieiit of the loose i'ziil, in coiiibinzition with yielding ineens for moving' the loose ruil laterally and iiiz'iintnining the slime iii normal position.

, GEORGE W. WHITEBLIA.

Witnesses E. HAYWARD FAiR'ANKs C. l). MCVAY.

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