US1392648A

US1392648A - Means for railway-track extension

Info

Publication number: US1392648A
Application number: US398376A
Authority: US
Inventors: Joseph F Joy
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-07-23
Filing date: 1920-07-23
Publication date: 1921-10-04
Anticipated expiration: 1938-10-04

Description

I. F. JOY. MEANS FOR RAILWAY TRACK EXTENSION. APPLICATION FILED JULY 23, 1920.

1,392,64 Patnted 001:. 4, 1921.

3 SHEETS-SHEET I- 15 g 6) l I ii J. F. JOY.

MEANS FOR RAILWAY TRACK EXTENSION.

APPLICATION FILED JULY 23, 1920- 1 Patented Oct. 4, 1921.

3 SHEETS SHEET 2.

1-. FY. JOY. MEANS FOR RAILWAY TRACK EXTENSION- APPLICATION FILED JULY 23, 1,9,20- 1,392,648 Patented Oct. 4, 1921' 3 S HEETS-SHEET 3.

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JOSEPH IE. JOY, OF PITTSBURGH, PENNSYLVANTA.

MEANS FOR RAILWAY-TRACK EXTENSION.

Application filed July 23,

To all whom it may concern:

Be it known that I, JOSEPH F IOY, a citizen of the United States ofAinerica, residing at Pittsburgh, in the county of Alle= gheny and State of Pennsylvania, have invented certain new and useful Improvements in Means for Railway-Track Extension, of which thefollowing is a specification.

This invention relates to certain new and useful improvements in means for railway.

track extension and is particularly serviceablein connection with the extension of the light-weight trackage found in coal mines and especially for extendlng the tracks in mine rooms for any desired distance less than the length of full length rail sections.

In the mining of coal under the room-andpillar system, the face of the vein is usually undercut for a depth substantially equal to the width of the working place, after which the material is blasted and loaded out by mechanical loaders or the like for the depth of such cut. The preferred types of loading machines are constructed to run upon rails so that the same may be readily brought up to within a short distance of the working face, and in order to accomplish this the rails must be kept extended close to the working face as the loading out of the coal proceeds. As the length of track extension required after the loading out of each cut is considerably less than the length of full lengthrail sections,special length rails must be employed for extending the track. at 0011- siderable expense under present methods. It is the primary object of the present invention to employ full length rail sections Y of the standard type manufactured for thus extending the tracks any desired part of the length of the rail sections by splicing in a novel manner. n

It is a further object of the present invention to provide means including a novel rail clamp to enable full length rail sections to be thus spliced.

A still further object of the invention is to construct a tie clampv soas to enable the same to be cheaply and easily manufactured as well as readilyplaced in use for'the above and other purposes.

Other objects will become apparent as the nature of the invention is better'understood,

- and the same consists in the novel form,

combination and arrangement of parts here- Specifieation of Letters Patent.

inafter more fully described, shown in the accompanying drawing and claimed.

In the drawings, wherein like reference characters indicate similar parts throughout the several views,

Figure 1 is a fragmentary view partly in elevation and partly in transverse vertical section showing my improved clamp associated with a pair of rail sections, one of which is shown by dotted lines,

Fig. 2 is substantially a top plan view of the device shown in Fig. 1,

Fig. 3 is a view partly in verticalv section and partly in elevation of the rail clamp shown in Figs. 1 and 2, the clamp being shown on an enlar ed scale,

Fig. 4 is a top plan view of the tie clamp with the nut and set screw removed,

Fig. 5 isa transverse sectional view taken upon line V-V of Fig. 4:,

Fig. 6 is a somewhat diagrammatic plan View illustrating the manner in which the rails are spliced in accordance with the present invention for extending the track a certain distance, and h Fig. 7 is a View similar to Fig. 6 after the rails have been further extended subsequent to the loading out of the cut illustrated in Fig. 6.

Referring more in detail to the several views, the present invention embodies a tie clamp including a body member '5 of substantially Greek cross form in plan and including alined oppositely extending jaws 6 having upwardly inclined lower faces 7 as more clearly shown in Figs. 1 and 6. The body of the clamp between the jaws 6 is pro- 'vided with opposite lateral extensions 8 from which depend hook-shaped flanges 9 for engagement with the side and underfaces of the bar tie 10 so that the clamp may be slid to any position on said tie as desired. The body 5 is centrally apertured as at 10 and is provided with a countersunk squared socket ll coincident with and beneath the aperture 10 for snug reception of a nut 12. The nut 12 may be merely fitted in the socket 11 or the same may be permanently secured therein by welding or the like and it will be seen that the nut is effectively prevented from turning relative to the body 5 by reason of the angular form of the nut and the socket. A set screw 13 is passed through the aperture 10 and threaded through the nut 12 so that its inner end is positioned to bear upon the upper surface of the tie 10, and it will thus be obvious that the clamp, or'anumber of the same, may be slid to the desired position or positions upon the tie, after which the set screw 13 of each clamp may be threaded inwardly for drawing the lower ends of the hooks 9 tightly against the under surface of the tie and rigidly fastening the clamp or clamps in position aga nst displacement, the under surfaces 7 of each clamp being at such times in engagement with the upper surface of the adjacent base flange of the rail A1.

When the clamp is used. between two rails as indicated in Fig. 1, the under surfaces 7 of'both jaws engage a rail base flange so i that the same is particularly serviceable in splicing rails for track extension as will V presently become apparent. V 20 a mine room Whose working face w' is undercut as at Z) in the usual manner.

Referring'to Figs. 6 and 7, 1& indicates In Fig. 6, the rails A have been extended into the room in end to end relation for full length to the points cso that the distance between said points c and the working face is not sufiicient to admit the 7 extension of the tracksv for the distance of points cZ-.' under the rails at the required points and the full length of a rail section. As the tracks must be extended substantially to the working face or to the points ,d, it is necessary to provide some feasible means for employing full length rail sections for this purposeor special length sections must the forward ends of the rail sectionsA are clamped in their desired distance apart by the use of the clamps 5 hereinbefore described and shown in Figs. 1 to 5 inclusive. As the trackage employed in mines is of very little weight and somewhat flexible,

the rail sections A are then sprung outwardly for a slight distance where they.

overlap the switch points 15 and the rails A,

' after which the switch points, the rail sections'A and the rails A are rigidly clamped together'in the relationshown in Fig. 6 by proper use of the clamps 5, one clamp 5.

being employed for engaging the base flanges of both the rail sections A and the rails A at the points --e so as to insure retention of the rail sections A in their sprung conditions. 1

When the coal has been mined or loadec out for the depth of the undercut b so as to provide a new working face a-- as shown in Fig. 7, the tracks must be further their substantially straight form when re-V withthe clamps are then placedunder the "the length of full length rail sections.

parting from the spirit and extended. When the rail points. are staggered, it often happens that one full length rail section A may bev inserted while a splicing in overlappedrelation is necessary again spliced inthe manner shown in Fig.

6 by springing said section A and using a switch point 15, the'rails being still rigidly maintained in their proper relation by use 7 of the same clamps 5 upon the ties 10; As

the springing of the rail sections A does not produce a permanent bend, in the latter, the same will immediately return to leased. i' V v In the use of the cIampsof the present invention, the desired number. of. clamps are first slid onto each tie 10, and the latter rails in any suitable manner, such as by jacking'the rails up suiiiciently for this purpose. The clamps are then placed at their proper relativev positions and engage with the base flanges of the rails,fl after which the set screws 13 are manipulated for fas- 'tening the rails in their proper relation. 1

. From the foregoing description, it will be seen that I have provided an extremely practical means for track extension particularly serviceable in the rooms of coal mines for enabling the useof full length rail sectipns even though the length of extension from time, to time is considerable less than It is believed that the construction and operation as well as the advantages of the presentinvention willbe readily understood and appreciated by those skilled intheiart.

Minor changes may be made without devention as" claimed. 7 7

What is claimedoas new is: 1.- In a means forrailway track extension,

.ai'ail tie clamp comprising a body of substantially Greek cross form in plan and in-. eluding alined oppositely directed Zjaws adapted for engagement 'upon the base flanges of adjacent rails, means for slidably connecting the body to a bar tie, said body having an angular socket therein, a nut fit- 12 0 ted insaid socket, and a set screw'threaded through said nut for engagement with the upper surface ofa tie,

2. In a means for railway track extension, a rail'tie clamp comprising a body of substantiallyGreek crossform in plan and including .alined oppositely directed jaws adapted for engagement upon. the base flanges of adjacent rails, means for slidably connecting the body to a bar tie, said last '130 scope of the in 110 V named means comprising alined oppositely directed extensions between said jaws provided with depending opposed hook-shaped flanges, said body having a central aperture and being provided with an angular socket coincident with said aperture, an angular nut fitted in said socket, and a set screw threaded through said nut adapted for engagement with the upper surface of a tie to retain the clamp against movement relative to said tie.

3. In a means for railway track extension, a rail tie clamp comprising a body having alined oppositely directed jaws adapted for engagement upon the base flanges of adjacent rails, means for slidably connecting the body to a bar tie, said body having an angular socket therein, a nut fitted in said socket, and a set screw threaded through said nut for engagement with a surface of the tie.

4. In a means for railway track extension, a rail tie clamp comprising a body having alined oppositely directed jaws adapted for engagement upon the base flanges of ad jacent rails, means for slidably connecting the body to a bar tie, said last named means including depending opposed hook-shaped flanges rigid with the body, said clamp having an aperture and being provided with an angular socket coincident with said aperture, an angular nut fitted in said socket, and a set screw threaded through said nut adapted for engaging with a surface of the tie to retain the clampv against movement relative to the latter.

5. A rail tie clamp comprising a body having-a jaw adapted for engagement upon the base flange of a rail and provided with means for slidably connecting the same to a bar tie, said clamp having an angular socket therein, a nut fitted in said socket, and a set screw threaded through said nut for engagement with a surface of the tie for holding the clamp against sliding movement on the latter."

6. A rail tie clamp comprising a body having a jaw adapted for engagement upon the base flange of a rail and provided with means for slidably connecting the same to a bar tie, said clamp having an angular socket therein, a nut fitted in said socket, and a set screw threaded through said nut for engagement with a surface of the tie for holding the clamp against sliding movement on the latter, said means for slidably connecting the clamp to the tie including depending opposed hook-shaped flanges on the body.

-7. A rail tie clamp comprising a body having a jaw adapted for engagement u )on the base flange of a rail, means for slidzibly connecting the body to a bar tie, said last named means comprising depending opposed hook shaped flanges, said body having a central aperture and being provided with an angular socket coincident with said aperture, an angular nut fitted in said socket, and a set screw threaded through said nut adapted for engagement with the upper surface of a tie to retain the clamp against movement relative to said tie.

8. A rail tie clamp comprising a body having a jaw adapted for engagement upon the base flange of a rail, means for slidably connecting the body to a bar tie, said body having an angular socket therein, a nut fitted in said socket, and a set screw threaded through said nut adapted for engagement with the upper surface of a tie.

In testimony whereof I afiix my signature.

JOSEPH JOY.