US1731014A

US1731014A - Track ballasting

Info

Publication number: US1731014A
Application number: US228916A
Authority: US
Inventors: Thomas J Lavan
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-10-18
Filing date: 1927-10-18
Publication date: 1929-10-08
Anticipated expiration: 1946-10-08

Description

Oct. 8, 1929. T. J. LAVAN TRACK BALLASTING Filed Oct. 18, 1927 4 Sheets$heet 1 IZ/ 1 1' Thomas J Lava-n.

' Oct. 8, 1929. T. J. LAVAN 1,731,014

TRACK BALLASTING Filed Oct. 18, 1927 4 4 Sheets-Sheet 2 Oct. 8, 1929. T. J. LAVAN 1,731,014

TRACK BALLASTING Filed Oct. 18. 1927 I 4 Sheets-Sheet 3 Thomas J- Laoan nventor Attoxngss Oct. 8, 1929. T. J. LAVAN TRACK BALLASTING Filed Oct. 18. 1927 4 Sheets--Shee t 4 u beneath these bearing plates, and means for invention may assume.

Patented Oct. 8, 1929 UNETED STATES THOMAS J. LAVAIT, 0L CLEVEL n, OI-IIO TRACK BALLAS'TING Application filed October 18, 1527.

My invention relates to track ballasting.

At the present time it is quite usual to construct street railway tracks in paved streets by forming a trench, laying the track therein 5 by the use of what are con'in'ionly known as twin ties, blocking the whole to raise the top or the rails to the level of the top of the pavement, and then pouring concrete into the trench usually to the level of the top 0 the bearing plates of the twin ties. in some cases the concrete flows under the twin ties sulliciently to form a base strong enough to withstand fairly well the loads imparted to it by the passage oil rolling stock along the track, and in such cases the track stands up reas *1- ably well; in other cases the concrete flex. 0 under the ties to such a lesser extent that the abutment is of an area entirely insuliicientto withstand the loads so imparted to it, and in :0 such case the track fails quickly. in any case the presence of any unfilled space beneath the bearing plates tends to hasten failure of the track installation not only because it reduces the area of the concrete abutment but 5 also because it permits frost deterioration of the concrete bed by providing a pocket in which moisture may collect.

T he principal object of my invention is to provide a. method for forcing the concrete carrying out this method, and in the drawings accompanying this specification, and l orn'iing a part of this application, 1 have shown, tor purposes of illustration, one form which my in these dra vings:

Figure 1 is a view showing a track of the type above referred to constructed according to the embodiment of my invention herein 4 sclosed, the four portions of the figure showing the track in four successive stages 01: construct-ion,

Figures 2 through 5 are sections respectively on the lines 22, 3-3, 4r4c, and 55, of Figure 1,.Figures 3 and d sho ving also the inc-ans herein disclosed for carrying out the method of construction herein disclosed, while Figure 6 is a plan view of this herein disclosed means.

Serial tion herein disclosed the trench 11 is formed,

and the track is assembled therein by securing the rails 12 to the bearing plates 13 of twin ties 14 which comprise in addition to the bearing plates 13 cross ties 15 riveted to the bearing plates 18 and useful particularly to hold the bearing plates 18 properly spaced and assen'iblcd into a single unit and the assembled track is then raised until the top of tie rails 12 reach the level to be assumed by thepavemcnt, and the track is blocked in this raised position, all in the usual manner, the track at this point in its construction being shown in clan in the top portion of Figure 1,

l. and in section in F igure 2. Next the concrete 16 is poured into the trench 11 approximately to the level of the top of the bearing plates 13, again in the usual manner, the track at this point in its coi'astruction being shown in plan in the second portion of Figure 1, and in sec tion in Figure According to ordinary construction the concrete then is leveled oli' roughly, and hand tamping is relied upon to cause concrete to flow beneath the bearing plates 13, and the ditliculties herein above recited rcl aarine' ilates 13 on the two sides thereof over considerable area on each sioe oi: the bearing plate 13 and in a direction to force the concrete to flow under the bearing plate 13 to completely fill the space beneath the bearing plate 13 and between the bearing plate 18 and the bottom of the trench 11, and this result is accomplished by the machine shown in elevation in Figures 3 and at and in plan in Figure (5.

This machine herein shown comprises a car 17 built upontwo pair of longitudinal channels 18 extending the length of the car, supporting, in the two channels of each pair, axles 19 on which are mounted wheels 20 formed to ride upon the rails 12 of the track being constructed, supporting, at their rear ends and ad acent their front ends, a pair of cross channels 21 serving to unite th long1tudinal channels into a unitary frame and also to support a car platform 22, and supporting, at their front ends in advance of the front cross channel 21, a pair of mechanism supporting cross channels 23 and 2t Depending; from the channels 23 am. 24 are four pair supporting plates 25, and n1 unted in each pair of supporting plates 25 is a double-acting pneumatic cylinder having a connection 27 leading to the chamber ahead of the piston head having a connection 28 leading to the chamber in rear of the piston head, and carrying on its piston head a piston rod 29 the outer end of which is secured a head 30. The cylinders 26 are so located, and are disposed at such an angle, that projection of he piston rods 29 will cause the heads 30 to the ballast on the two sides Of the two aearine' plates 13 and force the concrete beneath the bearin plates 13 into the spaces between the bearing plates 13 and the bottom of the trench 11, and compact th concrete in these spaces, thus to fill these spaces tightly with compacted concrete.

Gpcration of the heads 30 in unison is etfGCtQd by a single control valve t oi LO which is connected duct 32 leading from a source of compressed (not shown) a duct 33 leading to the cylinder connections 27, and a duct 3% leading to the cylinder connections 28, the valve 31 being of a usual construction by which in one position the duct 33 is opened to atmosphere and the duct 34 connected to the supply duct 32 to supply air rearwardly of the piston heads and advance the piston rods 29 and heads 30 from the retracted position shown in Figures 3 and 6 to ti advanced position shown in Figure 4, and by which in the other position the duct 35: is opened to atmosphere and the duct 33 connected to the supply cuct 32 to eitect the reverse movement.

From a consideration of the above descrip tion it will be obvious to those skilled in the that when this machine,v with the heads 30 retracted, is moved into position with the heads 30 above the bearing; plates 13 of twin tie about which the concrete has been poured but under the bearing plates of which the concrete has not yet been compressed, all as shown in plan for the track in the second portion of Figure 1 and for the machine in Figure 6, and elevation in Figure 3, then actuation of the cylinders 26 will cause the piston rods 29 and heads 30 to advance somewhat downwardly but generally laterally to force the concrete under the-bearing plates 13 until the entire space beneath the bearing plates 13, and

between the bearing plates 13 and the bOtLOlTl of the trench 11, has been tightly filled with compacted concrete, and the track has reached that stage o'l construction shown in plan in the third portion of Figure l and in elevai i igure i, and the machine has reached he position shown in elevation in Figure 4, lso that reverse actuation of the cylinders 26 will withdraw the piston rods 29 and heads 30 into the retracted position of Figures 3 and 6 to permit the car 17 to be advanced into position ready for the succeeding operation of the machine, the depressions made by the heads laterally of the bearing plates 13 preterably being filled in any suitable manner, as by introducing hand the ex ess concrete usually piled up intermediate the rails 12.

While my invention does not contemplate any exact dimensions for the heads 30 it will be ol ions to those skilled in the art that the angle and movement of the heads 30 must be so proportioned that the heads 30. acting on the concrete in the manner in which it is being deposited, will intercept and carry forward an amount of concrete sulhcient to tightly fill with compacted concrete the spaces beneath the bearingplates 13 and between the bearingplates 13 and the bottom of the trench 11, and accordingly it will be understood that the angle and movement or" the heads 30 must be coordinated, and that the manner of depositing" the concrete in the trench must be correlated with the result of the coordination of the angle and movementot the heads 30. Ohviously the heads 30 can be made of any width sufficient to cause the force imparted by the roads to continue as a thrust forcing the concrete under the bearing plates 13 rather than a wedge moving the concrete aside longitudinally of the track, but where a machine is to be used regularly in connection with twin tie track construction it of course will be advantageous to form the heads of the same width as the space between the cross ties of the twin ties, so that each operation of the machine will till the entire spaces under the two bearing plates of the twin tie being operated on thus permitting the machine to be moved an entire twin tie spacing between each operation and the operation next succeeding. lt of course will be obvious to those shilled in the art that my invention may be applied to constructions other than those embodying twin ties set in concrete ballast, and that both the m thod and means of my invention may be variously changed and altered from the method and means herein specifically disclosed, both with the type of track construction herein specifically consiccred and also to adapt my invention to other types of track construction to which it may be applicable. all without departing from the spirit of my invention or sacrificing the advantages there of, including both those advantages herein specifically pointed out or suggested and also those other advantages which will be discernible to those skilled in the art.

Therefore it will be understood that the disclosure herein is illustrative only. and teat my invention is not limited thereto.

I claim 'l. lhe method of introducing ballast to fill tightly the space beneath a track-supporting member between said member and the under-bed, which comprises: depositing ballast about said member; and then applying pressure to such ballast adjacent said member on opposite sides ol said member simul taneously, on each side over a considerable area simul aneously and in a direction to force such ballast under said member and compact such ballastin said space thus to till said space tightly with con'ipacted ballast.

2. The method of introducing concrete ballast to iill tightly the space beneath a tracksuoporting member between said member and the under-bed, which comprises: dcpositing such concrete about said mcn'iber; and then applying pressure to such concrete adjacent said member over a considerable area simultaneously and in a direction to force such concrete to flow under said member and compact such concrete in said space thus to fill said space tightly with compacted concrete.

3. The method 01 introducing concrete ballast to fill tightly the space beneath a tracksupporting member be Ween said member and and the under-bed, which comprises: dcpositing such concrete about said member; and t1 en applying generally lateral pressure to such. concrete adjacent said member over a considerable area simultaneously to force such concrete to flow from beside said member into said space and compact such concrete in said space thus to tillsaid space tightly with compacted concrete.

4;. The metpiod oi? introducing concrete ballastto fill tightly the space beneath a trackf-aupporting member between said member and the undei bed, which comprises: depositing such concrete about said member; and then inp: pr ssure to such concrete adjacent member on opposite sides of said member simiutaneouslyw on each side over considcrablc area simultaneously and in a directtion to r'orce such concrete to flow under said i'i'iember and compact such concrete in said space thus to lill said space tightly with compacted concrete The method of introducing ballast to itly the space beneath track-supportf twin-tie bearing plate between said bearplate and the under-bed, which comscs: depositing ballast about said bearing to and then applying pressure to such ballzut adjacent said bearing plate over a considerable area simultaneously and in a direction to force such ballast under said bearing and compact such ballast in said e thus to fill said space tightly with pacted ballast. Th method of introducing ballast to fill tightly the space beneath a track-simportmg twin-tie bearing plate between said bearing plate and the under-bed, which comprise: depositing ballast about said bearplate; and then applying pressure to such ballast adjacent said bearing plate on opposite sides of said bearing plate simultaneously on each side over a considerable area sin'iultaneously and in a direction to force such ballast under said bearing plate and compact such ballast in said space thus to fill said space tightly with compacted ballast.

7. The method of introducing concrete ballast to fill tightly the space beneath a track-supporting twin-tie bearing plate between said bearing plate and the under-bed, which comprises: depositing such concrete about said bearing plate; and then applying pressure to such concrete adjacent said bearing plate over a consioerablc area simultaneously and in a direction to force such concrete to flow under said bearing plate and compact such concrete in said space thus to fill said space tightly with compacted concrete.

8. The method oi introducing concrete ballast to fill tightly the space beneath a traclo supporting twin-tie bearing plate between said bearing plate and the under-bed which COll'lpl'lSfi: depositing such concrete about said bearing plate; and then applying pressure to such concrete adjacent said bearing plate on opposite sides of said bearing plate siu'lultaneous y, on each side over a considerarea simultaneously and in a direction to force such concrete to flow under said bearing plate and compact such concrete in said space thus to lill said space tightly with coinpac ed concrete. The method of ntroducing ballast to fill tightly the space beneath a track-supportinp; twin-ti bearing plate between said bearing plate and the under-bed, which comprises depositing ballast about said bearing plate; and then applyii'ig generally lateral pressure to such ballast a-tiljacent said bearing plate, over a considerable area simultaneously, to tl'orce such ballast from beside said bearing plate into said space and compact such ballast in said space thus to till said space tightly with compacted ballet-2t.

10. The method of introducing concrete ballast to fill tightly the space beneath a traclesupportingr twin-tie bearing plate be tween said bearing plate and the under-bed, which comprises: depositing such concrete about said bearing plate; and then applying' generally lateral pressure to such con crete adjacent said bearing plate, over a considerable area simultaneously, to force such concrete to flow from beside s id bearing plate into said space and compact such concrete in l space thus to fill said space tightly with compacted concrete.

11. A machine for introducing ballast (lo-- posited about a track-supporti11g twiirtie into the space beneath a bearing; plate of said twin-tie and between said bearing pl, l

he under-bed, to fill said space tightly With compact such concrete beneath said bearing such ballast Well-compacted, comprising: a plate between said bearing plate and such car; a pair of heads, each of large area and under-bed i adapted to contact such ballast sunuitane- A machine for introducing ballast deously over a large area, supported from said positeu about attack-supporting twin-tie car to contact such ballast on both sides of int tle space beneath a bearing plate of said bearing plate; and head 0 aerating means sai i i between said bearing plate carried by said car for applying maid heads and "he L11 ler-b to such ballast adjac nt said bearing plate W'th s l i a on opposite sides of said bearing plate and ng: a ct run; ing on the track being balthen simultaneously moving said heads asted; a pair of heads, each of large area and against such ballast in directions to force adapt-c to contact such ballast simultanesuch ballast under saio bearing plate simuI- usly over a large area, supported from said tanecusly from opposite sides of said bearcar to contact such ballast on both sides ing ,late and to compact such ballast beof said bearing plate; and head operating 30 we, said bearin slate between said bcar- I1G?JGS'CE7 il0l by said aifor a l in said 2: l L e t) ieals LO such ballast adjacei said bearing A machine for introducing ballast deplate on OPPOSHQ s1 1 id bearing plat late and such under-bed.

l 185; of s posited about a track-supporting twin-tie a d then simultaneously moving said heads -e spa es benea 1" nst sucn Jail; in directions to force l the earn. Win-tie and between 5 Y allast under said bearing plate simulbed, to ill saic siac 1 in opposite sides of said bearing cted, c n "s c, a compact suca lalast beneath Ti 1 such ballast Wen-conip ing: a car; two pairs or heads, plate between saic Jearing plate of large area and adapted to co -der-bed. ballast simultaneously over l ine for introducing ballast desaid pairs of heads support ,l fro-r. said that a tra ii-supporting twin-tie inar to contact such ballast on both side? or said bearing plates, each pair to contact such ballast n both sides of the corresponding said bearing plate; 211 heal at beneath the bearing plates of i d between said bearing plates u; the undered, to fill said spaces tightly i' such ballast Well-compacted, compris d ing means carried by said car for 7 l 'ng: a car running on the track being ballasting each pair of said heads to such i re pairs oi heads, each head of large adjacent the corresponding said bee in ea eic ada ted to contact such ballast si- 1 erge area, said pairs or" 1 0 on opposite sides of saic bearin plate n1 ltan ously over a then moving said heats agains uch ballast in directions tot'orce s eh .oillast under 1 d ca 'c caring plate from opp site Si( es or bearing plate, 1 opera-sing n s i t i Wis W, .1 ,1 1 A H 1 ac cs supp i ted ii chi said on to contact seen rding' said bearing plate; and

1 moving each pair of heads aga'iist such bal- (sting means carried by said car for 5 simultaneously tius to iorce such balapplying each pa r of said heads to such ball l ccrresp riding said boa ng ii id acent the correspondi g said bearing neousl from opposite side' d to coiuoact such 'ween said l i i 13. A machine for introducing concrete A ballast depos a track-supporting p "Win-tie into beneath bearing last simueo plate of said twin-tie and be unde the. c ing' and the under-bed, simultaneei sly t' tlv with such concrete bearing pl c prising: a can; a pair 0 neath said 1 large ar a a -d ada; ted to c plate and such r-oed. or is simultaneously ore: a 16. A nachin for introducing ballast deported from said car to con posited about a track-supporting twin-tie crete on both sides of said earing' 1 late; and into the space beneath a bearing plate of said head operating means carried by saic car for twin-tie and. between l bearing plate and applying said head to such concrete adjathe under-bed, to fill said space tightly with cent said bearing plate on opp site sides of such ballast WGll-COHPZiCiZQCl, comprising: a 335 said bearing p ate and tl en simultaneously or moving said heads against such concrete in adapted to contact such ballast simultaneousdirections force such concrete to flow i Y over large area, supp rted from said car under said bearing plate simultaneously from to cm such ballast on both sides or said opposite sides of said caring slate and to hearing plate; and head operating means ear- 1 r' plate or ricd by said our for imparting to said heads a movement applying said heads to such ballast adjacent said bearine' plate on opposite sides of said bearing plate and then. simultzmeour-a m ovingg' said he ds against such hallast in directions to force such bcllast under said bearing; plate sinuiltancously from opposite sides oil said bear ng plate, and to compact such ballast )eneath. said bearing plate between said bear; plate and the U24 der-bcd.

17. A mac vine for introducing concrete deposited about a traclrcupporting into the sisce beneath a bearing aid twin-tie and between sai d bearing plate and the underbed, to lill said space tightly with such concrete well-compacted, comprising: car; a pair of heads, each of large area uni adapted to contact such concrcte simultaneously over a large area, supported in said car to contact such concrete on both sides of said bearing; plate; and head operating means carried by said our for imparting to said heads a movement applying laid heads to such concrete adjacent said bearing plate on opposite sides of said bearing plate and then simultaneously moving said heads against such concrete in directions to force such concrete to flow under d bearing plate simultaneously from opposite sides of said bearing plate, a d to compact such concrete beneath said bearing plate between sai d caring plate and the under-bed.

18. A machine for introducing ballast c poiited about a track-supper twin-tic into the space beneath a bearing plate of said twin-tie and between said bearing; plate and the 1mdcr-bed, to {ill said space tightly with such ballast well-compactec, comprising: a car; a pair of heads, each of large area. and adapted to contact such ballast simultaneously over a large area, supported from said er to contact such ballast on both sides of said bearing plate; and head operating; means carried by said at for impnrtirur to said heads a generally lateral movement applying said heads to such ballast adjacent said bearing plate on opposite sides or" said bearing plate and then 'nultaneously moving said heads against such ballast in directions to force such ballast under sc simultaneously from o 'iposiie sides or hearing plate, and to compact such ballastbeneath said bearing plate between said hearing plate and the under-bed.

19. machine for introducing concrete ballast deposited aluiuit a tra:xlosupporting twin-tie into the space beneith a bearing plate of suit twin-tie and between said lmnrlong; plate and the under-bed, to fill said space tightly with such concrete well-compacted, comprising: a car; a. pair of heads, each of large area and adapted to contact such concrete simultaneously over a large area, supported. from said car to contact such concrete on both sides of said bearing plate; and head operating means carried by said our for imparting to said heads a generally lateral movement applying; said heads to such concrete adjacent said bearing plate on opposite sides of said bearing plate and then simultaneously moving said heads against such concrete in directions to force such concrete to flow under said bearing plate simultane ously from opposite sides of said bearing plate, and to compact such concrete beneath said bearing plate between said bearing plate and the under-be 20. A. machine for introducing ballast deposited about a track-supporting twin-tie into the space beneath a bearing plate of said twin-tie and between said bearing plate and the under-bed, to ill]. said space tightly with such ballast well-compacted, comprising: a car; a pair of heads, each of large area, and adapted to contact such ballast simultaneously over a large area, supported from said. car to contact such ballast on both sides of said bearing plnte; and head ooerating means carried by said car for imparting to said heads a generally lateral straight-line movement applyingsaid heads so such ballast adjacent said bearing plate on opposite sides ofsaid hearing plate and then simultaneously moving said heads against such bal ast in directions to force such ballast under said bearing plate simultaneously from opposite sides of said bearing plate, and to compact such ballast beneath said bearing plate between said bearing plate and the under-bed.

21. A machine for introducing concrete ballas deposited about a track-srugporting twin-tie into the space beneath a bearing plate of said twin-tie and between said bearins plate and the under-bed, to lill said space tightly with such concrete well-compacted, comprising: a car; a pair of heads, each of large area and adapted to contact such concrete simultaneously over large area, supported from sai d car to contact such concrete on both 5: L of bearing plate; and head operating; means carried by said our for imparting to said heads a generally lateral straight-line moven'icnt applying said heads to such concrete adjacent said bearing plate on opposite sides of said bearing plate and then simultaneously moving said heads against such concrete in directions to force such concrete to {low under said bearing plate simultaneously from opposite sides of said bearing plate, and to compact such concrete beneath said bearing plate between said bearingz' plate and the under-bed.

In testimony whereof I hereunto my signature. i

c THOMAS J. LAVAN.