US1058015A - Anticreeper for rails. - Google Patents

Description

F. A. PRESTON. ANTICBEEPER FOR RAILS. APPLICATION FILED SBPT.19,1912.

1,058,015. P e ed Apr. 1, 1913 i 2 SHEETS-SHEET 1.

I. A. PRESTON. ANTIGBBEPER FOB RAILS. APPLICATION FILED SEPT. 19, 1912.

1 ,O58,01 5 Patented Apr. 1, 1913.

I B'HEETHHEET 2.

flaw 2% W UNITED STATES K PATENT OFFICE.

FREDERICK A. PRESTON, OF HIGHLAND PARK, ILLINOIS, ASSIGNOR TO THE P. & M.

' COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

ANTICREEPER FOR RAILS.

Specification of Letters Patent.

Patented Apr. 1, 1913,

' T all whom it may concern ing some adjustment.

the rai Be it known that I, FREDERICK A. Pans- TON, a citizen of the United States, and a resident of Highland Park, in the county of Lake and State of Illinois, have invented certain new and useful Improvements in Anticreepers for Rails, of which the following is a 'full, clear, concise, and exact de scription, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to anti-creepers for rails.

In the various ditl'erent forms of anticreepers now in use, the creeping tendency of the rail is resisted by. virtue of the firm frictional hold of the anti-creeper on the rail, the thrust being transmitted directly to a cross-tie by some portion of the anticreeper which bears against said tie. As asthe pressure of the anti-creeper agalnst the tie continues, the anti-creeper maintains an effective hold on the rail. When the pressure is relieved due to re ction of the rail from contraction or fro creeping tendency in the opposite direction, the anti-creeper may loosen, due to vibration of passing trains or to ballast which may;

be packed or frozen tightly around the hearing face of anti-creeper and prevent its free movement with the backward movement of rail. This vibration or ballast interference may not only loosen the anti-creeper but may completely disengage it from the rail. To prevent this objectionable loosening of the grip of the anti-creeper on the rail, various devices have been provided heretofore for locking the anti-creeper in its most Bf?- fective position of adjustment. Said devices in many cases had to be applied. manually after the anti-creeper was applied to the rail or they required the additional operation of bending some element or of mak- In other cases, the locking devices were not equally effective for different adjustments of the anti-creeper or else they permitted an appreciable readjustmentthereof before becoming effective.

The object of my invention is to provide improved means for locking the anti-creeper in whatever position of effective adjustment it may have assumed, the said locking occurring automatically when the ant reeper is bein driven to the desired POSltlOIl on In the accompanying drawings, 1 have illustrated several embodiments of the invention, which latter may, of course, be embodied in other forms.

The following views are shown in the drawings:

Figure 1 is an elevation of one form of anti-creeper in assembled position on the rail, which latter is shown in partial sectional elevation. Fig. 2 is a top plan view thereof with the rail shown in dotted outline. Fig. 3 is a perspective view of one of the two parts of the anti-creeper shown in the preceding figures. Fig. 4 is a top plan view of a second form of anti-creeper in which the automatic lock is arranged at the rear end thereof instead of at the forward end as in the first form. Fig. 5 is a perspective view of one of the two parts of which the anti-creeper shown in Fig. 4 is composed. Fig. 6 is a perspective view of a detail. Fig.

7 is a side elevation of a third form of anticreeper, the same being shown in assembled position on the rail. Fig. 8 is a perspective View of a detail thereof. Fig. 9 is a perspective view of one of the members of this form of anti-creeper, Fig. 10 is a top plan View of a fourth form of anti'creeper.

In the preferred design the anti-creeper is made up of two relatively movable parts, the larger of which in each of the views of the drawings may be called the clip 1, the smaller being known as the mate 2. The clip is provided with a rail engaging jaw 3 and the mate is provided with a similar rail engaging j aw 4. The clip is provided with a recess or groove 5 which receives loosely the projection or rib 6 on the mate. One of the vertical walls of said rib engages the adjacent vertical wall of the groove, said walls having sliding engagement with each other in a plane somewhat diagonal with respect to the longitudinal axis of the rail as indicated at 7 in the various views. It

will be seen that a relative movement of the clip and the mate longitudinally with respect to the rail will cause the jaws 3 and 4 to be drawn closer together, thereby firmly tongues are spread apart pin or projection 12 formed at the forward is then driven on to the opposite side of the rail base at some distance from the tie and is then driven toward the tie until the rib' (3 is received within the groove 5 and the adjacent vertical walls are brought into engagement with each other, as previously explained. The driving of the mate toward the tie is continued until the arts have as' sumed about the relative positions shown in Figs. 2, 4, 7 and 10, at which point the mate can be driven no farther, as the rail base' at this point is gripped most effectively by the jaws 3 and 4. \Vhen in this position it will be s en that when the rail tends tocreep, both the clip and the mate tend to move therewith.- The forward movement of the .clip' is resisted by the't-ie, however, through the abutting flange 9. Any actual forward movement oft-he mate 4 will result in the jaws 3 and 4 beingdrawn closer together, thereby increasing if possible the effectivenessof the grip on the rail base.

Itwill be seen that a rearward movement of the mate will result in a relaxation of the grip of the jaws on the rail base. @As long as the rail tends to creep forward no relaxation can occur. If the rail should move rear- \val'dly due to contraction caused by cold, for example, or reversed trafiic, the pressure of the flange 9 on the tie would be relieved and long continued vibration of the rail mightloosen to a greater or less extent the hold of the anti-creeper onthe rail base. To prevent such a loosening I provide in the- 35 first form of device a pair of forwardly projecting tongues 11 on he mate, which by a wedge-shaped endofthe clip, preferably integrally there with, and rojecting from the bottom of the recess 5. gaid wedge is so disposed with respect to the. forward end of the recess that the tongues 11 when spread apart are extended-a distance greater than the width of said slot and are. brought preferably into positive engagement with the front vertical j wall of the clip,

as clearly shown in Fig. 2. In this position it will be seen-that a rearward movement of the mate is effectually preventedby the tongues 11, which are bent outwardly over the corners-13. Accordeffectively from whatever position the mate may c ventually have assun'ied. Furthermorc, if the rail anchor-should be carelessly applied, and the what, the lock would not mate not driven sufiiciently far, the creeping tendency of the rail will cause a further forward movement of said mate, the latter being locked against return movementboth in its first position and in its last position. In other words, the mate is locked in any operative position, whether in the most effective position or not, and is prevented from a return movement although not necessarily prevented from a further forward movement to amore effective position.

As seen in Fig. 2, the tongues 11, which together with the entire mate are preferably made of malleable iron, project somewhat beyond the front wall of the clip. They do not project, however, beyond the vertical plane of the tie-abutting flange 9. If the tie should be very irregular in crosssectional outline,'so that the points of the tongues 11 should penetrate the tie somebe rendered. inoperative thereby.

In the second form of anti-creeper, the

locking device is-arranged at the rear. The

- tongues 14 project rearwardly from the clip and the spreaderor wedge 15 is formed as a part of the mate. When the mate is driven into the clip,-the spreading of the tongues 14 locks the mate against return movement.

In the third form of anti-creeper, the locking means consist of a tongue which is deflected in a vertical plane instead of in a horizontal plane. The locking tongue 16 is formed on the mate and is bent downwardly when driven under the bridge '17 at the forward end of the recess 5. It is obvious that this form of lock'may also be arranged-at. the rear of the anti-creeper.

In the form of device shown in Fig. .10, the tongues 18, instead o fqbeing spread apart, are brought together the mate is; being driven into the clip. Said tongues encounter the walls or abutments 1.9 and are bent toward each other around thepos't 20, whereby positive engagement with said post is obtained to a su'tlicient extent to pr'event rearward movement of the mate. It is apparent that this form of lock may also arranged at the rear of the anti-creeper if-desired.

In-all of the above forms of device, the rail anchor is illustrated as being made of two pa Of course the invention is adapted to any anti-creeperhavdng a plurality of parts, whether two or more. Furthermore, the invention is not limited to the use of two locking-tongues as a greater or less number may be employed. Neither isit limited to the. relative arrangement or loca ti-..=.u of said tongue or tongues with respect to the other parts of the anticreeper. In general the Qwention is not limited to the particular forms described and illustrated onto the details thereof-r Instead, I desire to cover broadly suitable e quival-"u means For accomplishing the desired results wherver such means fall within the scope of the appended rlaims.

Ilaving thus described my invention, what I claim as new and de ire to secure by Letters Patent ot the I'nited States. is:

1. A rail anchor having a plurality of cooperating parts which increase their grip on the rail when moved relatively longitudinally thereof, two of said parts having sliding engagement beneath the rail base and havin; means which cO-aet to automatically etl'eet positive engagement at any point; during: said movement and thereby prevent re turn movement from any operative rela tive position of said parts.

2. In an anti-cr eper, two members having intertitting portions beneath the rail base and being relatively movable in a direction substantially parallel to the rail, :1

projection on one of said members, and

mean on the other of said members for engaging said projection and deflecting it with respect to the line of movement of said members.

3. In an antiereeper, two members engaging each other beneath the rail base and being' relatively movable in a direction substantially parallel to the rail, a projection on one of said members, means on the other of said members for engaging said projection and deflecting it with respect to the line of movement of said members, and additional means arranged so as to be engaged by the deflected projection to prevent a return movement of said members.

4. In an :tiwreeper, two relatively movable members. a pair ot sub tantially parallel tongues carried by one of said members, and a pair of inclined walls on the other of said members. said inclined wall bein;

adapted to engage said tongues (luring rela tive movement of said members to vary the angle between said tongues.

5. In an anti-creeper, two relatively mow able member a pair of sulistantially paral- 1 lel tongues carried by one of said members, a pair of inclined walls on the other of sa d members, said inclined walls being adapteu. to engage s aid tongues during 1' *lative move.- ment of said members to vary the angle between said ton 'ues and means engagedby said tongues when in deflected position to form a positive lock.

(5. An anti-creeper Com irisinn two mem ber each having a jaw ailapted to g'ip one of the edges of a rail base, one of said members having a slot. the other of said members having a rib arranged to tit loosely in said slot, a flexible tongue carried by one of said members, a locking surface on the other ot said members. and means for deflecting said tongu against said locking surface when said members are being assembled.

T. An anti-creeper comprising members which are movable substantially parallel to the axis of the rail, said members having interlocking and wedging engagement beneath the rail base, a pair of tongues carried by one of said members, and cooperating inclined walls carried by the other of said members whereby movement of said members relatively will deflect said tongues lransver ely with respect to the rail.

in witness whereot'. I hereunto subscribe my name this 17th day of September, A. Di, I912.

FREDERICK A. PRESTON.

Witnesses:

lacsmn \V. Fiuomz, RUBHR'I F. BRACKE.

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